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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Library of internal classes and functions for module workshop
*
* All the workshop specific functions, needed to implement the module
* logic, should go to here. Instead of having bunch of function named
* workshop_something() taking the workshop instance as the first
* parameter, we use a class workshop that provides all methods.
*
* @package mod_workshop
* @copyright 2009 David Mudrak <david.mudrak@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__.'/lib.php'); // we extend this library here
require_once($CFG->libdir . '/gradelib.php'); // we use some rounding and comparing routines here
require_once($CFG->libdir . '/filelib.php');
/**
* Full-featured workshop API
*
* This wraps the workshop database record with a set of methods that are called
* from the module itself. The class should be initialized right after you get
* $workshop, $cm and $course records at the begining of the script.
*/
class workshop {
/** error status of the {@link self::add_allocation()} */
const ALLOCATION_EXISTS = -9999;
/** the internal code of the workshop phases as are stored in the database */
const PHASE_SETUP = 10;
const PHASE_SUBMISSION = 20;
const PHASE_ASSESSMENT = 30;
const PHASE_EVALUATION = 40;
const PHASE_CLOSED = 50;
/** the internal code of the examples modes as are stored in the database */
const EXAMPLES_VOLUNTARY = 0;
const EXAMPLES_BEFORE_SUBMISSION = 1;
const EXAMPLES_BEFORE_ASSESSMENT = 2;
/** @var stdclass workshop record from database */
public $dbrecord;
/** @var cm_info course module record */
public $cm;
/** @var stdclass course record */
public $course;
/** @var stdclass context object */
public $context;
/** @var int workshop instance identifier */
public $id;
/** @var string workshop activity name */
public $name;
/** @var string introduction or description of the activity */
public $intro;
/** @var int format of the {@link $intro} */
public $introformat;
/** @var string instructions for the submission phase */
public $instructauthors;
/** @var int format of the {@link $instructauthors} */
public $instructauthorsformat;
/** @var string instructions for the assessment phase */
public $instructreviewers;
/** @var int format of the {@link $instructreviewers} */
public $instructreviewersformat;
/** @var int timestamp of when the module was modified */
public $timemodified;
/** @var int current phase of workshop, for example {@link workshop::PHASE_SETUP} */
public $phase;
/** @var bool optional feature: students practise evaluating on example submissions from teacher */
public $useexamples;
/** @var bool optional feature: students perform peer assessment of others' work (deprecated, consider always enabled) */
public $usepeerassessment;
/** @var bool optional feature: students perform self assessment of their own work */
public $useselfassessment;
/** @var float number (10, 5) unsigned, the maximum grade for submission */
public $grade;
/** @var float number (10, 5) unsigned, the maximum grade for assessment */
public $gradinggrade;
/** @var string type of the current grading strategy used in this workshop, for example 'accumulative' */
public $strategy;
/** @var string the name of the evaluation plugin to use for grading grades calculation */
public $evaluation;
/** @var int number of digits that should be shown after the decimal point when displaying grades */
public $gradedecimals;
/** @var int number of allowed submission attachments and the files embedded into submission */
public $nattachments;
/** @var string list of allowed file types that are allowed to be embedded into submission */
public $submissionfiletypes = null;
/** @var bool allow submitting the work after the deadline */
public $latesubmissions;
/** @var int maximum size of the one attached file in bytes */
public $maxbytes;
/** @var int mode of example submissions support, for example {@link workshop::EXAMPLES_VOLUNTARY} */
public $examplesmode;
/** @var int if greater than 0 then the submission is not allowed before this timestamp */
public $submissionstart;
/** @var int if greater than 0 then the submission is not allowed after this timestamp */
public $submissionend;
/** @var int if greater than 0 then the peer assessment is not allowed before this timestamp */
public $assessmentstart;
/** @var int if greater than 0 then the peer assessment is not allowed after this timestamp */
public $assessmentend;
/** @var bool automatically switch to the assessment phase after the submissions deadline */
public $phaseswitchassessment;
/** @var string conclusion text to be displayed at the end of the activity */
public $conclusion;
/** @var int format of the conclusion text */
public $conclusionformat;
/** @var int the mode of the overall feedback */
public $overallfeedbackmode;
/** @var int maximum number of overall feedback attachments */
public $overallfeedbackfiles;
/** @var string list of allowed file types that can be attached to the overall feedback */
public $overallfeedbackfiletypes = null;
/** @var int maximum size of one file attached to the overall feedback */
public $overallfeedbackmaxbytes;
/** @var int Should the submission form show the text field? */
public $submissiontypetext;
/** @var int Should the submission form show the file attachment field? */
public $submissiontypefile;
/**
* @var workshop_strategy grading strategy instance
* Do not use directly, get the instance using {@link workshop::grading_strategy_instance()}
*/
protected $strategyinstance = null;
/**
* @var workshop_evaluation grading evaluation instance
* Do not use directly, get the instance using {@link workshop::grading_evaluation_instance()}
*/
protected $evaluationinstance = null;
/**
* Initializes the workshop API instance using the data from DB
*
* Makes deep copy of all passed records properties.
*
* For unit testing only, $cm and $course may be set to null. This is so that
* you can test without having any real database objects if you like. Not all
* functions will work in this situation.
*
* @param stdClass $dbrecord Workshop instance data from {workshop} table
* @param stdClass|cm_info $cm Course module record
* @param stdClass $course Course record from {course} table
* @param stdClass $context The context of the workshop instance
*/
public function __construct(stdclass $dbrecord, $cm, $course, stdclass $context=null) {
$this->dbrecord = $dbrecord;
foreach ($this->dbrecord as $field => $value) {
if (property_exists('workshop', $field)) {
$this->{$field} = $value;
}
}
if (is_null($cm) || is_null($course)) {
throw new coding_exception('Must specify $cm and $course');
}
$this->course = $course;
if ($cm instanceof cm_info) {
$this->cm = $cm;
} else {
$modinfo = get_fast_modinfo($course);
$this->cm = $modinfo->get_cm($cm->id);
}
if (is_null($context)) {
$this->context = context_module::instance($this->cm->id);
} else {
$this->context = $context;
}
}
////////////////////////////////////////////////////////////////////////////////
// Static methods //
////////////////////////////////////////////////////////////////////////////////
/**
* Return list of available allocation methods
*
* @return array Array ['string' => 'string'] of localized allocation method names
*/
public static function installed_allocators() {
$installed = core_component::get_plugin_list('workshopallocation');
$forms = array();
foreach ($installed as $allocation => $allocationpath) {
if (file_exists($allocationpath . '/lib.php')) {
$forms[$allocation] = get_string('pluginname', 'workshopallocation_' . $allocation);
}
}
// usability - make sure that manual allocation appears the first
if (isset($forms['manual'])) {
$m = array('manual' => $forms['manual']);
unset($forms['manual']);
$forms = array_merge($m, $forms);
}
return $forms;
}
/**
* Returns an array of options for the editors that are used for submitting and assessing instructions
*
* @param stdClass $context
* @uses EDITOR_UNLIMITED_FILES hard-coded value for the 'maxfiles' option
* @return array
*/
public static function instruction_editors_options(stdclass $context) {
return array('subdirs' => 1, 'maxbytes' => 0, 'maxfiles' => -1,
'changeformat' => 1, 'context' => $context, 'noclean' => 1, 'trusttext' => 0);
}
/**
* Given the percent and the total, returns the number
*
* @param float $percent from 0 to 100
* @param float $total the 100% value
* @return float
*/
public static function percent_to_value($percent, $total) {
if ($percent < 0 or $percent > 100) {
throw new coding_exception('The percent can not be less than 0 or higher than 100');
}
return $total * $percent / 100;
}
/**
* Returns an array of numeric values that can be used as maximum grades
*
* @return array Array of integers
*/
public static function available_maxgrades_list() {
$grades = array();
for ($i=100; $i>=0; $i--) {
$grades[$i] = $i;
}
return $grades;
}
/**
* Returns the localized list of supported examples modes
*
* @return array
*/
public static function available_example_modes_list() {
$options = array();
$options[self::EXAMPLES_VOLUNTARY] = get_string('examplesvoluntary', 'workshop');
$options[self::EXAMPLES_BEFORE_SUBMISSION] = get_string('examplesbeforesubmission', 'workshop');
$options[self::EXAMPLES_BEFORE_ASSESSMENT] = get_string('examplesbeforeassessment', 'workshop');
return $options;
}
/**
* Returns the list of available grading strategy methods
*
* @return array ['string' => 'string']
*/
public static function available_strategies_list() {
$installed = core_component::get_plugin_list('workshopform');
$forms = array();
foreach ($installed as $strategy => $strategypath) {
if (file_exists($strategypath . '/lib.php')) {
$forms[$strategy] = get_string('pluginname', 'workshopform_' . $strategy);
}
}
return $forms;
}
/**
* Returns the list of available grading evaluation methods
*
* @return array of (string)name => (string)localized title
*/
public static function available_evaluators_list() {
$evals = array();
foreach (core_component::get_plugin_list_with_file('workshopeval', 'lib.php', false) as $eval => $evalpath) {
$evals[$eval] = get_string('pluginname', 'workshopeval_' . $eval);
}
return $evals;
}
/**
* Return an array of possible values of assessment dimension weight
*
* @return array of integers 0, 1, 2, ..., 16
*/
public static function available_dimension_weights_list() {
$weights = array();
for ($i=16; $i>=0; $i--) {
$weights[$i] = $i;
}
return $weights;
}
/**
* Return an array of possible values of assessment weight
*
* Note there is no real reason why the maximum value here is 16. It used to be 10 in
* workshop 1.x and I just decided to use the same number as in the maximum weight of
* a single assessment dimension.
* The value looks reasonable, though. Teachers who would want to assign themselves
* higher weight probably do not want peer assessment really...
*
* @return array of integers 0, 1, 2, ..., 16
*/
public static function available_assessment_weights_list() {
$weights = array();
for ($i=16; $i>=0; $i--) {
$weights[$i] = $i;
}
return $weights;
}
/**
* Helper function returning the greatest common divisor
*
* @param int $a
* @param int $b
* @return int
*/
public static function gcd($a, $b) {
return ($b == 0) ? ($a):(self::gcd($b, $a % $b));
}
/**
* Helper function returning the least common multiple
*
* @param int $a
* @param int $b
* @return int
*/
public static function lcm($a, $b) {
return ($a / self::gcd($a,$b)) * $b;
}
/**
* Returns an object suitable for strings containing dates/times
*
* The returned object contains properties date, datefullshort, datetime, ... containing the given
* timestamp formatted using strftimedate, strftimedatefullshort, strftimedatetime, ... from the
* current lang's langconfig.php
* This allows translators and administrators customize the date/time format.
*
* @param int $timestamp the timestamp in UTC
* @return stdclass
*/
public static function timestamp_formats($timestamp) {
$formats = array('date', 'datefullshort', 'dateshort', 'datetime',
'datetimeshort', 'daydate', 'daydatetime', 'dayshort', 'daytime',
'monthyear', 'recent', 'recentfull', 'time');
$a = new stdclass();
foreach ($formats as $format) {
$a->{$format} = userdate($timestamp, get_string('strftime'.$format, 'langconfig'));
}
$day = userdate($timestamp, '%Y%m%d', 99, false);
$today = userdate(time(), '%Y%m%d', 99, false);
$tomorrow = userdate(time() + DAYSECS, '%Y%m%d', 99, false);
$yesterday = userdate(time() - DAYSECS, '%Y%m%d', 99, false);
$distance = (int)round(abs(time() - $timestamp) / DAYSECS);
if ($day == $today) {
$a->distanceday = get_string('daystoday', 'workshop');
} elseif ($day == $yesterday) {
$a->distanceday = get_string('daysyesterday', 'workshop');
} elseif ($day < $today) {
$a->distanceday = get_string('daysago', 'workshop', $distance);
} elseif ($day == $tomorrow) {
$a->distanceday = get_string('daystomorrow', 'workshop');
} elseif ($day > $today) {
$a->distanceday = get_string('daysleft', 'workshop', $distance);
}
return $a;
}
/**
* Converts the argument into an array (list) of file extensions.
*
* The list can be separated by whitespace, end of lines, commas colons and semicolons.
* Empty values are not returned. Values are converted to lowercase.
* Duplicates are removed. Glob evaluation is not supported.
*
* @deprecated since Moodle 3.4 MDL-56486 - please use the {@link core_form\filetypes_util}
* @param string|array $extensions list of file extensions
* @return array of strings
*/
public static function normalize_file_extensions($extensions) {
debugging('The method workshop::normalize_file_extensions() is deprecated.
Please use the methods provided by the \core_form\filetypes_util class.', DEBUG_DEVELOPER);
if ($extensions === '') {
return array();
}
if (!is_array($extensions)) {
$extensions = preg_split('/[\s,;:"\']+/', $extensions, null, PREG_SPLIT_NO_EMPTY);
}
foreach ($extensions as $i => $extension) {
$extension = str_replace('*.', '', $extension);
$extension = strtolower($extension);
$extension = ltrim($extension, '.');
$extension = trim($extension);
$extensions[$i] = $extension;
}
foreach ($extensions as $i => $extension) {
if (strpos($extension, '*') !== false or strpos($extension, '?') !== false) {
unset($extensions[$i]);
}
}
$extensions = array_filter($extensions, 'strlen');
$extensions = array_keys(array_flip($extensions));
foreach ($extensions as $i => $extension) {
$extensions[$i] = '.'.$extension;
}
return $extensions;
}
/**
* Cleans the user provided list of file extensions.
*
* @deprecated since Moodle 3.4 MDL-56486 - please use the {@link core_form\filetypes_util}
* @param string $extensions
* @return string
*/
public static function clean_file_extensions($extensions) {
debugging('The method workshop::clean_file_extensions() is deprecated.
Please use the methods provided by the \core_form\filetypes_util class.', DEBUG_DEVELOPER);
$extensions = self::normalize_file_extensions($extensions);
foreach ($extensions as $i => $extension) {
$extensions[$i] = ltrim($extension, '.');
}
return implode(', ', $extensions);
}
/**
* Check given file types and return invalid/unknown ones.
*
* Empty whitelist is interpretted as "any extension is valid".
*
* @deprecated since Moodle 3.4 MDL-56486 - please use the {@link core_form\filetypes_util}
* @param string|array $extensions list of file extensions
* @param string|array $whitelist list of valid extensions
* @return array list of invalid extensions not found in the whitelist
*/
public static function invalid_file_extensions($extensions, $whitelist) {
debugging('The method workshop::invalid_file_extensions() is deprecated.
Please use the methods provided by the \core_form\filetypes_util class.', DEBUG_DEVELOPER);
$extensions = self::normalize_file_extensions($extensions);
$whitelist = self::normalize_file_extensions($whitelist);
if (empty($extensions) or empty($whitelist)) {
return array();
}
// Return those items from $extensions that are not present in $whitelist.
return array_keys(array_diff_key(array_flip($extensions), array_flip($whitelist)));
}
/**
* Is the file have allowed to be uploaded to the workshop?
*
* Empty whitelist is interpretted as "any file type is allowed" rather
* than "no file can be uploaded".
*
* @deprecated since Moodle 3.4 MDL-56486 - please use the {@link core_form\filetypes_util}
* @param string $filename the file name
* @param string|array $whitelist list of allowed file extensions
* @return false
*/
public static function is_allowed_file_type($filename, $whitelist) {
debugging('The method workshop::is_allowed_file_type() is deprecated.
Please use the methods provided by the \core_form\filetypes_util class.', DEBUG_DEVELOPER);
$whitelist = self::normalize_file_extensions($whitelist);
if (empty($whitelist)) {
return true;
}
$haystack = strrev(trim(strtolower($filename)));
foreach ($whitelist as $extension) {
if (strpos($haystack, strrev($extension)) === 0) {
// The file name ends with the extension.
return true;
}
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
// Workshop API //
////////////////////////////////////////////////////////////////////////////////
/**
* Fetches all enrolled users with the capability mod/workshop:submit in the current workshop
*
* The returned objects contain properties required by user_picture and are ordered by lastname, firstname.
* Only users with the active enrolment are returned.
*
* @param bool $musthavesubmission if true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @param int $limitfrom return a subset of records, starting at this point (optional, required if $limitnum is set)
* @param int $limitnum return a subset containing this number of records (optional, required if $limitfrom is set)
* @return array array[userid] => stdClass
*/
public function get_potential_authors($musthavesubmission=true, $groupid=0, $limitfrom=0, $limitnum=0) {
global $DB;
list($sql, $params) = $this->get_users_with_capability_sql('mod/workshop:submit', $musthavesubmission, $groupid);
if (empty($sql)) {
return array();
}
list($sort, $sortparams) = users_order_by_sql('tmp');
$sql = "SELECT *
FROM ($sql) tmp
ORDER BY $sort";
return $DB->get_records_sql($sql, array_merge($params, $sortparams), $limitfrom, $limitnum);
}
/**
* Returns the total number of users that would be fetched by {@link self::get_potential_authors()}
*
* @param bool $musthavesubmission if true, count only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return int
*/
public function count_potential_authors($musthavesubmission=true, $groupid=0) {
global $DB;
list($sql, $params) = $this->get_users_with_capability_sql('mod/workshop:submit', $musthavesubmission, $groupid);
if (empty($sql)) {
return 0;
}
$sql = "SELECT COUNT(*)
FROM ($sql) tmp";
return $DB->count_records_sql($sql, $params);
}
/**
* Fetches all enrolled users with the capability mod/workshop:peerassess in the current workshop
*
* The returned objects contain properties required by user_picture and are ordered by lastname, firstname.
* Only users with the active enrolment are returned.
*
* @param bool $musthavesubmission if true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @param int $limitfrom return a subset of records, starting at this point (optional, required if $limitnum is set)
* @param int $limitnum return a subset containing this number of records (optional, required if $limitfrom is set)
* @return array array[userid] => stdClass
*/
public function get_potential_reviewers($musthavesubmission=false, $groupid=0, $limitfrom=0, $limitnum=0) {
global $DB;
list($sql, $params) = $this->get_users_with_capability_sql('mod/workshop:peerassess', $musthavesubmission, $groupid);
if (empty($sql)) {
return array();
}
list($sort, $sortparams) = users_order_by_sql('tmp');
$sql = "SELECT *
FROM ($sql) tmp
ORDER BY $sort";
return $DB->get_records_sql($sql, array_merge($params, $sortparams), $limitfrom, $limitnum);
}
/**
* Returns the total number of users that would be fetched by {@link self::get_potential_reviewers()}
*
* @param bool $musthavesubmission if true, count only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return int
*/
public function count_potential_reviewers($musthavesubmission=false, $groupid=0) {
global $DB;
list($sql, $params) = $this->get_users_with_capability_sql('mod/workshop:peerassess', $musthavesubmission, $groupid);
if (empty($sql)) {
return 0;
}
$sql = "SELECT COUNT(*)
FROM ($sql) tmp";
return $DB->count_records_sql($sql, $params);
}
/**
* Fetches all enrolled users that are authors or reviewers (or both) in the current workshop
*
* The returned objects contain properties required by user_picture and are ordered by lastname, firstname.
* Only users with the active enrolment are returned.
*
* @see self::get_potential_authors()
* @see self::get_potential_reviewers()
* @param bool $musthavesubmission if true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @param int $limitfrom return a subset of records, starting at this point (optional, required if $limitnum is set)
* @param int $limitnum return a subset containing this number of records (optional, required if $limitfrom is set)
* @return array array[userid] => stdClass
*/
public function get_participants($musthavesubmission=false, $groupid=0, $limitfrom=0, $limitnum=0) {
global $DB;
list($sql, $params) = $this->get_participants_sql($musthavesubmission, $groupid);
if (empty($sql)) {
return array();
}
list($sort, $sortparams) = users_order_by_sql('tmp');
$sql = "SELECT *
FROM ($sql) tmp
ORDER BY $sort";
return $DB->get_records_sql($sql, array_merge($params, $sortparams), $limitfrom, $limitnum);
}
/**
* Returns the total number of records that would be returned by {@link self::get_participants()}
*
* @param bool $musthavesubmission if true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return int
*/
public function count_participants($musthavesubmission=false, $groupid=0) {
global $DB;
list($sql, $params) = $this->get_participants_sql($musthavesubmission, $groupid);
if (empty($sql)) {
return 0;
}
$sql = "SELECT COUNT(*)
FROM ($sql) tmp";
return $DB->count_records_sql($sql, $params);
}
/**
* Checks if the given user is an actively enrolled participant in the workshop
*
* @param int $userid, defaults to the current $USER
* @return boolean
*/
public function is_participant($userid=null) {
global $USER, $DB;
if (is_null($userid)) {
$userid = $USER->id;
}
list($sql, $params) = $this->get_participants_sql();
if (empty($sql)) {
return false;
}
$sql = "SELECT COUNT(*)
FROM {user} uxx
JOIN ({$sql}) pxx ON uxx.id = pxx.id
WHERE uxx.id = :uxxid";
$params['uxxid'] = $userid;
if ($DB->count_records_sql($sql, $params)) {
return true;
}
return false;
}
/**
* Groups the given users by the group membership
*
* This takes the module grouping settings into account. If a grouping is
* set, returns only groups withing the course module grouping. Always
* returns group [0] with all the given users.
*
* @param array $users array[userid] => stdclass{->id ->lastname ->firstname}
* @return array array[groupid][userid] => stdclass{->id ->lastname ->firstname}
*/
public function get_grouped($users) {
global $DB;
global $CFG;
$grouped = array(); // grouped users to be returned
if (empty($users)) {
return $grouped;
}
if ($this->cm->groupingid) {
// Group workshop set to specified grouping - only consider groups
// within this grouping, and leave out users who aren't members of
// this grouping.
$groupingid = $this->cm->groupingid;
// All users that are members of at least one group will be
// added into a virtual group id 0
$grouped[0] = array();
} else {
$groupingid = 0;
// there is no need to be member of a group so $grouped[0] will contain
// all users
$grouped[0] = $users;
}
$gmemberships = groups_get_all_groups($this->cm->course, array_keys($users), $groupingid,
'gm.id,gm.groupid,gm.userid');
foreach ($gmemberships as $gmembership) {
if (!isset($grouped[$gmembership->groupid])) {
$grouped[$gmembership->groupid] = array();
}
$grouped[$gmembership->groupid][$gmembership->userid] = $users[$gmembership->userid];
$grouped[0][$gmembership->userid] = $users[$gmembership->userid];
}
return $grouped;
}
/**
* Returns the list of all allocations (i.e. assigned assessments) in the workshop
*
* Assessments of example submissions are ignored
*
* @return array
*/
public function get_allocations() {
global $DB;
$sql = 'SELECT a.id, a.submissionid, a.reviewerid, s.authorid
FROM {workshop_assessments} a
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
WHERE s.example = 0 AND s.workshopid = :workshopid';
$params = array('workshopid' => $this->id);
return $DB->get_records_sql($sql, $params);
}
/**
* Returns the total number of records that would be returned by {@link self::get_submissions()}
*
* @param mixed $authorid int|array|'all' If set to [array of] integer, return submission[s] of the given user[s] only
* @param int $groupid If non-zero, return only submissions by authors in the specified group
* @return int number of records
*/
public function count_submissions($authorid='all', $groupid=0) {
global $DB;
$params = array('workshopid' => $this->id);
$sql = "SELECT COUNT(s.id)
FROM {workshop_submissions} s
JOIN {user} u ON (s.authorid = u.id)";
if ($groupid) {
$sql .= " JOIN {groups_members} gm ON (gm.userid = u.id AND gm.groupid = :groupid)";
$params['groupid'] = $groupid;
}
$sql .= " WHERE s.example = 0 AND s.workshopid = :workshopid";
if ('all' === $authorid) {
// no additional conditions
} elseif (!empty($authorid)) {
list($usql, $uparams) = $DB->get_in_or_equal($authorid, SQL_PARAMS_NAMED);
$sql .= " AND authorid $usql";
$params = array_merge($params, $uparams);
} else {
// $authorid is empty
return 0;
}
return $DB->count_records_sql($sql, $params);
}
/**
* Returns submissions from this workshop
*
* Fetches data from {workshop_submissions} and adds some useful information from other
* tables. Does not return textual fields to prevent possible memory lack issues.
*
* @see self::count_submissions()
* @param mixed $authorid int|array|'all' If set to [array of] integer, return submission[s] of the given user[s] only
* @param int $groupid If non-zero, return only submissions by authors in the specified group
* @param int $limitfrom Return a subset of records, starting at this point (optional)
* @param int $limitnum Return a subset containing this many records in total (optional, required if $limitfrom is set)
* @return array of records or an empty array
*/
public function get_submissions($authorid='all', $groupid=0, $limitfrom=0, $limitnum=0) {
global $DB;
$authorfields = user_picture::fields('u', null, 'authoridx', 'author');
$gradeoverbyfields = user_picture::fields('t', null, 'gradeoverbyx', 'over');
$params = array('workshopid' => $this->id);
$sql = "SELECT s.id, s.workshopid, s.example, s.authorid, s.timecreated, s.timemodified,
s.title, s.grade, s.gradeover, s.gradeoverby, s.published,
$authorfields, $gradeoverbyfields
FROM {workshop_submissions} s
JOIN {user} u ON (s.authorid = u.id)";
if ($groupid) {
$sql .= " JOIN {groups_members} gm ON (gm.userid = u.id AND gm.groupid = :groupid)";
$params['groupid'] = $groupid;
}
$sql .= " LEFT JOIN {user} t ON (s.gradeoverby = t.id)
WHERE s.example = 0 AND s.workshopid = :workshopid";
if ('all' === $authorid) {
// no additional conditions
} elseif (!empty($authorid)) {
list($usql, $uparams) = $DB->get_in_or_equal($authorid, SQL_PARAMS_NAMED);
$sql .= " AND authorid $usql";
$params = array_merge($params, $uparams);
} else {
// $authorid is empty
return array();
}
list($sort, $sortparams) = users_order_by_sql('u');
$sql .= " ORDER BY $sort";
return $DB->get_records_sql($sql, array_merge($params, $sortparams), $limitfrom, $limitnum);
}
/**
* Returns submissions from this workshop that are viewable by the current user (except example submissions).
*
* @param mixed $authorid int|array If set to [array of] integer, return submission[s] of the given user[s] only
* @param int $groupid If non-zero, return only submissions by authors in the specified group. 0 for all groups.
* @param int $limitfrom Return a subset of records, starting at this point (optional)
* @param int $limitnum Return a subset containing this many records in total (optional, required if $limitfrom is set)
* @return array of records and the total submissions count
* @since Moodle 3.4
*/
public function get_visible_submissions($authorid = 0, $groupid = 0, $limitfrom = 0, $limitnum = 0) {
global $DB, $USER;
$submissions = array();
$select = "SELECT s.*";
$selectcount = "SELECT COUNT(s.id)";
$from = " FROM {workshop_submissions} s";
$params = array('workshopid' => $this->id);
// Check if the passed group (or all groups when groupid is 0) is visible by the current user.
if (!groups_group_visible($groupid, $this->course, $this->cm)) {
return array($submissions, 0);
}
if ($groupid) {
$from .= " JOIN {groups_members} gm ON (gm.userid = s.authorid AND gm.groupid = :groupid)";
$params['groupid'] = $groupid;
}
$where = " WHERE s.workshopid = :workshopid AND s.example = 0";
if (!has_capability('mod/workshop:viewallsubmissions', $this->context)) {
// Check published submissions.
$workshopclosed = $this->phase == self::PHASE_CLOSED;
$canviewpublished = has_capability('mod/workshop:viewpublishedsubmissions', $this->context);
if ($workshopclosed && $canviewpublished) {
$published = " OR s.published = 1";
} else {
$published = '';
}
// Always get submissions I did or I provided feedback to.
$where .= " AND (s.authorid = :authorid OR s.gradeoverby = :graderid $published)";
$params['authorid'] = $USER->id;
$params['graderid'] = $USER->id;
}
// Now, user filtering.
if (!empty($authorid)) {
list($usql, $uparams) = $DB->get_in_or_equal($authorid, SQL_PARAMS_NAMED);
$where .= " AND s.authorid $usql";
$params = array_merge($params, $uparams);
}
$order = " ORDER BY s.timecreated";
$totalcount = $DB->count_records_sql($selectcount.$from.$where, $params);
if ($totalcount) {
$submissions = $DB->get_records_sql($select.$from.$where.$order, $params, $limitfrom, $limitnum);
}
return array($submissions, $totalcount);
}
/**
* Returns a submission record with the author's data
*
* @param int $id submission id
* @return stdclass
*/
public function get_submission_by_id($id) {
global $DB;
// we intentionally check the workshopid here, too, so the workshop can't touch submissions
// from other instances
$authorfields = user_picture::fields('u', null, 'authoridx', 'author');
$gradeoverbyfields = user_picture::fields('g', null, 'gradeoverbyx', 'gradeoverby');
$sql = "SELECT s.*, $authorfields, $gradeoverbyfields
FROM {workshop_submissions} s
INNER JOIN {user} u ON (s.authorid = u.id)
LEFT JOIN {user} g ON (s.gradeoverby = g.id)
WHERE s.example = 0 AND s.workshopid = :workshopid AND s.id = :id";
$params = array('workshopid' => $this->id, 'id' => $id);
return $DB->get_record_sql($sql, $params, MUST_EXIST);
}
/**
* Returns a submission submitted by the given author
*
* @param int $id author id
* @return stdclass|false
*/
public function get_submission_by_author($authorid) {
global $DB;
if (empty($authorid)) {
return false;
}
$authorfields = user_picture::fields('u', null, 'authoridx', 'author');
$gradeoverbyfields = user_picture::fields('g', null, 'gradeoverbyx', 'gradeoverby');
$sql = "SELECT s.*, $authorfields, $gradeoverbyfields
FROM {workshop_submissions} s
INNER JOIN {user} u ON (s.authorid = u.id)
LEFT JOIN {user} g ON (s.gradeoverby = g.id)
WHERE s.example = 0 AND s.workshopid = :workshopid AND s.authorid = :authorid";
$params = array('workshopid' => $this->id, 'authorid' => $authorid);
return $DB->get_record_sql($sql, $params);
}
/**
* Returns published submissions with their authors data
*
* @return array of stdclass
*/
public function get_published_submissions($orderby='finalgrade DESC') {
global $DB;
$authorfields = user_picture::fields('u', null, 'authoridx', 'author');
$sql = "SELECT s.id, s.authorid, s.timecreated, s.timemodified,
s.title, s.grade, s.gradeover, COALESCE(s.gradeover,s.grade) AS finalgrade,
$authorfields
FROM {workshop_submissions} s
INNER JOIN {user} u ON (s.authorid = u.id)
WHERE s.example = 0 AND s.workshopid = :workshopid AND s.published = 1
ORDER BY $orderby";
$params = array('workshopid' => $this->id);
return $DB->get_records_sql($sql, $params);
}
/**
* Returns full record of the given example submission
*
* @param int $id example submission od
* @return object
*/
public function get_example_by_id($id) {
global $DB;
return $DB->get_record('workshop_submissions',
array('id' => $id, 'workshopid' => $this->id, 'example' => 1), '*', MUST_EXIST);
}
/**
* Returns the list of example submissions in this workshop with reference assessments attached
*
* @return array of objects or an empty array
* @see workshop::prepare_example_summary()
*/
public function get_examples_for_manager() {
global $DB;
$sql = 'SELECT s.id, s.title,
a.id AS assessmentid, a.grade, a.gradinggrade
FROM {workshop_submissions} s
LEFT JOIN {workshop_assessments} a ON (a.submissionid = s.id AND a.weight = 1)
WHERE s.example = 1 AND s.workshopid = :workshopid
ORDER BY s.title';
return $DB->get_records_sql($sql, array('workshopid' => $this->id));
}
/**
* Returns the list of all example submissions in this workshop with the information of assessments done by the given user
*
* @param int $reviewerid user id
* @return array of objects, indexed by example submission id
* @see workshop::prepare_example_summary()
*/
public function get_examples_for_reviewer($reviewerid) {
global $DB;
if (empty($reviewerid)) {
return false;
}
$sql = 'SELECT s.id, s.title,
a.id AS assessmentid, a.grade, a.gradinggrade
FROM {workshop_submissions} s
LEFT JOIN {workshop_assessments} a ON (a.submissionid = s.id AND a.reviewerid = :reviewerid AND a.weight = 0)
WHERE s.example = 1 AND s.workshopid = :workshopid
ORDER BY s.title';
return $DB->get_records_sql($sql, array('workshopid' => $this->id, 'reviewerid' => $reviewerid));
}
/**
* Prepares renderable submission component
*
* @param stdClass $record required by {@see workshop_submission}
* @param bool $showauthor show the author-related information
* @return workshop_submission
*/
public function prepare_submission(stdClass $record, $showauthor = false) {
$submission = new workshop_submission($this, $record, $showauthor);
$submission->url = $this->submission_url($record->id);
return $submission;
}
/**
* Prepares renderable submission summary component
*
* @param stdClass $record required by {@see workshop_submission_summary}
* @param bool $showauthor show the author-related information
* @return workshop_submission_summary
*/
public function prepare_submission_summary(stdClass $record, $showauthor = false) {
$summary = new workshop_submission_summary($this, $record, $showauthor);
$summary->url = $this->submission_url($record->id);
return $summary;
}
/**
* Prepares renderable example submission component
*
* @param stdClass $record required by {@see workshop_example_submission}
* @return workshop_example_submission
*/
public function prepare_example_submission(stdClass $record) {
$example = new workshop_example_submission($this, $record);
return $example;
}
/**
* Prepares renderable example submission summary component
*
* If the example is editable, the caller must set the 'editable' flag explicitly.
*
* @param stdClass $example as returned by {@link workshop::get_examples_for_manager()} or {@link workshop::get_examples_for_reviewer()}
* @return workshop_example_submission_summary to be rendered
*/
public function prepare_example_summary(stdClass $example) {
$summary = new workshop_example_submission_summary($this, $example);
if (is_null($example->grade)) {
$summary->status = 'notgraded';
$summary->assesslabel = get_string('assess', 'workshop');
} else {
$summary->status = 'graded';
$summary->assesslabel = get_string('reassess', 'workshop');
}
$summary->gradeinfo = new stdclass();
$summary->gradeinfo->received = $this->real_grade($example->grade);
$summary->gradeinfo->max = $this->real_grade(100);
$summary->url = new moodle_url($this->exsubmission_url($example->id));
$summary->editurl = new moodle_url($this->exsubmission_url($example->id), array('edit' => 'on'));
$summary->assessurl = new moodle_url($this->exsubmission_url($example->id), array('assess' => 'on', 'sesskey' => sesskey()));
return $summary;
}
/**
* Prepares renderable assessment component
*
* The $options array supports the following keys:
* showauthor - should the author user info be available for the renderer
* showreviewer - should the reviewer user info be available for the renderer
* showform - show the assessment form if it is available
* showweight - should the assessment weight be available for the renderer
*
* @param stdClass $record as returned by eg {@link self::get_assessment_by_id()}
* @param workshop_assessment_form|null $form as returned by {@link workshop_strategy::get_assessment_form()}
* @param array $options
* @return workshop_assessment
*/
public function prepare_assessment(stdClass $record, $form, array $options = array()) {
$assessment = new workshop_assessment($this, $record, $options);
$assessment->url = $this->assess_url($record->id);
$assessment->maxgrade = $this->real_grade(100);
if (!empty($options['showform']) and !($form instanceof workshop_assessment_form)) {
debugging('Not a valid instance of workshop_assessment_form supplied', DEBUG_DEVELOPER);
}
if (!empty($options['showform']) and ($form instanceof workshop_assessment_form)) {
$assessment->form = $form;
}
if (empty($options['showweight'])) {
$assessment->weight = null;
}
if (!is_null($record->grade)) {
$assessment->realgrade = $this->real_grade($record->grade);
}
return $assessment;
}
/**
* Prepares renderable example submission's assessment component
*
* The $options array supports the following keys:
* showauthor - should the author user info be available for the renderer
* showreviewer - should the reviewer user info be available for the renderer
* showform - show the assessment form if it is available
*
* @param stdClass $record as returned by eg {@link self::get_assessment_by_id()}
* @param workshop_assessment_form|null $form as returned by {@link workshop_strategy::get_assessment_form()}
* @param array $options
* @return workshop_example_assessment
*/
public function prepare_example_assessment(stdClass $record, $form = null, array $options = array()) {
$assessment = new workshop_example_assessment($this, $record, $options);
$assessment->url = $this->exassess_url($record->id);
$assessment->maxgrade = $this->real_grade(100);
if (!empty($options['showform']) and !($form instanceof workshop_assessment_form)) {
debugging('Not a valid instance of workshop_assessment_form supplied', DEBUG_DEVELOPER);
}
if (!empty($options['showform']) and ($form instanceof workshop_assessment_form)) {
$assessment->form = $form;
}
if (!is_null($record->grade)) {
$assessment->realgrade = $this->real_grade($record->grade);
}
$assessment->weight = null;
return $assessment;
}
/**
* Prepares renderable example submission's reference assessment component
*
* The $options array supports the following keys:
* showauthor - should the author user info be available for the renderer
* showreviewer - should the reviewer user info be available for the renderer
* showform - show the assessment form if it is available
*
* @param stdClass $record as returned by eg {@link self::get_assessment_by_id()}
* @param workshop_assessment_form|null $form as returned by {@link workshop_strategy::get_assessment_form()}
* @param array $options
* @return workshop_example_reference_assessment
*/
public function prepare_example_reference_assessment(stdClass $record, $form = null, array $options = array()) {
$assessment = new workshop_example_reference_assessment($this, $record, $options);
$assessment->maxgrade = $this->real_grade(100);
if (!empty($options['showform']) and !($form instanceof workshop_assessment_form)) {
debugging('Not a valid instance of workshop_assessment_form supplied', DEBUG_DEVELOPER);
}
if (!empty($options['showform']) and ($form instanceof workshop_assessment_form)) {
$assessment->form = $form;
}
if (!is_null($record->grade)) {
$assessment->realgrade = $this->real_grade($record->grade);
}
$assessment->weight = null;
return $assessment;
}
/**
* Removes the submission and all relevant data
*
* @param stdClass $submission record to delete
* @return void
*/
public function delete_submission(stdclass $submission) {
global $DB;
$assessments = $DB->get_records('workshop_assessments', array('submissionid' => $submission->id), '', 'id');
$this->delete_assessment(array_keys($assessments));
$fs = get_file_storage();
$fs->delete_area_files($this->context->id, 'mod_workshop', 'submission_content', $submission->id);
$fs->delete_area_files($this->context->id, 'mod_workshop', 'submission_attachment', $submission->id);
$DB->delete_records('workshop_submissions', array('id' => $submission->id));
// Event information.
$params = array(
'context' => $this->context,
'courseid' => $this->course->id,
'relateduserid' => $submission->authorid,
'other' => array(
'submissiontitle' => $submission->title
)
);
$params['objectid'] = $submission->id;
$event = \mod_workshop\event\submission_deleted::create($params);
$event->add_record_snapshot('workshop', $this->dbrecord);
$event->trigger();
}
/**
* Returns the list of all assessments in the workshop with some data added
*
* Fetches data from {workshop_assessments} and adds some useful information from other
* tables. The returned object does not contain textual fields (i.e. comments) to prevent memory
* lack issues.
*
* @return array [assessmentid] => assessment stdclass
*/
public function get_all_assessments() {
global $DB;
$reviewerfields = user_picture::fields('reviewer', null, 'revieweridx', 'reviewer');
$authorfields = user_picture::fields('author', null, 'authorid', 'author');
$overbyfields = user_picture::fields('overby', null, 'gradinggradeoverbyx', 'overby');
list($sort, $params) = users_order_by_sql('reviewer');
$sql = "SELECT a.id, a.submissionid, a.reviewerid, a.timecreated, a.timemodified,
a.grade, a.gradinggrade, a.gradinggradeover, a.gradinggradeoverby,
$reviewerfields, $authorfields, $overbyfields,
s.title
FROM {workshop_assessments} a
INNER JOIN {user} reviewer ON (a.reviewerid = reviewer.id)
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
INNER JOIN {user} author ON (s.authorid = author.id)
LEFT JOIN {user} overby ON (a.gradinggradeoverby = overby.id)
WHERE s.workshopid = :workshopid AND s.example = 0
ORDER BY $sort";
$params['workshopid'] = $this->id;
return $DB->get_records_sql($sql, $params);
}
/**
* Get the complete information about the given assessment
*
* @param int $id Assessment ID
* @return stdclass
*/
public function get_assessment_by_id($id) {
global $DB;
$reviewerfields = user_picture::fields('reviewer', null, 'revieweridx', 'reviewer');
$authorfields = user_picture::fields('author', null, 'authorid', 'author');
$overbyfields = user_picture::fields('overby', null, 'gradinggradeoverbyx', 'overby');
$sql = "SELECT a.*, s.title, $reviewerfields, $authorfields, $overbyfields
FROM {workshop_assessments} a
INNER JOIN {user} reviewer ON (a.reviewerid = reviewer.id)
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
INNER JOIN {user} author ON (s.authorid = author.id)
LEFT JOIN {user} overby ON (a.gradinggradeoverby = overby.id)
WHERE a.id = :id AND s.workshopid = :workshopid";
$params = array('id' => $id, 'workshopid' => $this->id);
return $DB->get_record_sql($sql, $params, MUST_EXIST);
}
/**
* Get the complete information about the user's assessment of the given submission
*
* @param int $sid submission ID
* @param int $uid user ID of the reviewer
* @return false|stdclass false if not found, stdclass otherwise
*/
public function get_assessment_of_submission_by_user($submissionid, $reviewerid) {
global $DB;
$reviewerfields = user_picture::fields('reviewer', null, 'revieweridx', 'reviewer');
$authorfields = user_picture::fields('author', null, 'authorid', 'author');
$overbyfields = user_picture::fields('overby', null, 'gradinggradeoverbyx', 'overby');
$sql = "SELECT a.*, s.title, $reviewerfields, $authorfields, $overbyfields
FROM {workshop_assessments} a
INNER JOIN {user} reviewer ON (a.reviewerid = reviewer.id)
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id AND s.example = 0)
INNER JOIN {user} author ON (s.authorid = author.id)
LEFT JOIN {user} overby ON (a.gradinggradeoverby = overby.id)
WHERE s.id = :sid AND reviewer.id = :rid AND s.workshopid = :workshopid";
$params = array('sid' => $submissionid, 'rid' => $reviewerid, 'workshopid' => $this->id);
return $DB->get_record_sql($sql, $params, IGNORE_MISSING);
}
/**
* Get the complete information about all assessments of the given submission
*
* @param int $submissionid
* @return array
*/
public function get_assessments_of_submission($submissionid) {
global $DB;
$reviewerfields = user_picture::fields('reviewer', null, 'revieweridx', 'reviewer');
$overbyfields = user_picture::fields('overby', null, 'gradinggradeoverbyx', 'overby');
list($sort, $params) = users_order_by_sql('reviewer');
$sql = "SELECT a.*, s.title, $reviewerfields, $overbyfields
FROM {workshop_assessments} a
INNER JOIN {user} reviewer ON (a.reviewerid = reviewer.id)
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
LEFT JOIN {user} overby ON (a.gradinggradeoverby = overby.id)
WHERE s.example = 0 AND s.id = :submissionid AND s.workshopid = :workshopid
ORDER BY $sort";
$params['submissionid'] = $submissionid;
$params['workshopid'] = $this->id;
return $DB->get_records_sql($sql, $params);
}
/**
* Get the complete information about all assessments allocated to the given reviewer
*
* @param int $reviewerid
* @return array
*/
public function get_assessments_by_reviewer($reviewerid) {
global $DB;
$reviewerfields = user_picture::fields('reviewer', null, 'revieweridx', 'reviewer');
$authorfields = user_picture::fields('author', null, 'authorid', 'author');
$overbyfields = user_picture::fields('overby', null, 'gradinggradeoverbyx', 'overby');
$sql = "SELECT a.*, $reviewerfields, $authorfields, $overbyfields,
s.id AS submissionid, s.title AS submissiontitle, s.timecreated AS submissioncreated,
s.timemodified AS submissionmodified
FROM {workshop_assessments} a
INNER JOIN {user} reviewer ON (a.reviewerid = reviewer.id)
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
INNER JOIN {user} author ON (s.authorid = author.id)
LEFT JOIN {user} overby ON (a.gradinggradeoverby = overby.id)
WHERE s.example = 0 AND reviewer.id = :reviewerid AND s.workshopid = :workshopid";
$params = array('reviewerid' => $reviewerid, 'workshopid' => $this->id);
return $DB->get_records_sql($sql, $params);
}
/**
* Get allocated assessments not graded yet by the given reviewer
*
* @see self::get_assessments_by_reviewer()
* @param int $reviewerid the reviewer id
* @param null|int|array $exclude optional assessment id (or list of them) to be excluded
* @return array
*/
public function get_pending_assessments_by_reviewer($reviewerid, $exclude = null) {
$assessments = $this->get_assessments_by_reviewer($reviewerid);
foreach ($assessments as $id => $assessment) {
if (!is_null($assessment->grade)) {
unset($assessments[$id]);
continue;
}
if (!empty($exclude)) {
if (is_array($exclude) and in_array($id, $exclude)) {
unset($assessments[$id]);
continue;
} else if ($id == $exclude) {
unset($assessments[$id]);
continue;
}
}
}
return $assessments;
}
/**
* Allocate a submission to a user for review
*
* @param stdClass $submission Submission object with at least id property
* @param int $reviewerid User ID
* @param int $weight of the new assessment, from 0 to 16
* @param bool $bulk repeated inserts into DB expected
* @return int ID of the new assessment or an error code {@link self::ALLOCATION_EXISTS} if the allocation already exists
*/
public function add_allocation(stdclass $submission, $reviewerid, $weight=1, $bulk=false) {
global $DB;
if ($DB->record_exists('workshop_assessments', array('submissionid' => $submission->id, 'reviewerid' => $reviewerid))) {
return self::ALLOCATION_EXISTS;
}
$weight = (int)$weight;
if ($weight < 0) {
$weight = 0;
}
if ($weight > 16) {
$weight = 16;
}
$now = time();
$assessment = new stdclass();
$assessment->submissionid = $submission->id;
$assessment->reviewerid = $reviewerid;
$assessment->timecreated = $now; // do not set timemodified here
$assessment->weight = $weight;
$assessment->feedbackauthorformat = editors_get_preferred_format();
$assessment->feedbackreviewerformat = editors_get_preferred_format();
return $DB->insert_record('workshop_assessments', $assessment, true, $bulk);
}
/**
* Delete assessment record or records.
*
* Removes associated records from the workshop_grades table, too.
*
* @param int|array $id assessment id or array of assessments ids
* @todo Give grading strategy plugins a chance to clean up their data, too.
* @return bool true
*/
public function delete_assessment($id) {
global $DB;
if (empty($id)) {
return true;
}
$fs = get_file_storage();
if (is_array($id)) {
$DB->delete_records_list('workshop_grades', 'assessmentid', $id);
foreach ($id as $itemid) {
$fs->delete_area_files($this->context->id, 'mod_workshop', 'overallfeedback_content', $itemid);
$fs->delete_area_files($this->context->id, 'mod_workshop', 'overallfeedback_attachment', $itemid);
}
$DB->delete_records_list('workshop_assessments', 'id', $id);
} else {
$DB->delete_records('workshop_grades', array('assessmentid' => $id));
$fs->delete_area_files($this->context->id, 'mod_workshop', 'overallfeedback_content', $id);
$fs->delete_area_files($this->context->id, 'mod_workshop', 'overallfeedback_attachment', $id);
$DB->delete_records('workshop_assessments', array('id' => $id));
}
return true;
}
/**
* Returns instance of grading strategy class
*
* @return stdclass Instance of a grading strategy
*/
public function grading_strategy_instance() {
global $CFG; // because we require other libs here
if (is_null($this->strategyinstance)) {
$strategylib = __DIR__ . '/form/' . $this->strategy . '/lib.php';
if (is_readable($strategylib)) {
require_once($strategylib);
} else {
throw new coding_exception('the grading forms subplugin must contain library ' . $strategylib);
}
$classname = 'workshop_' . $this->strategy . '_strategy';
$this->strategyinstance = new $classname($this);
if (!in_array('workshop_strategy', class_implements($this->strategyinstance))) {
throw new coding_exception($classname . ' does not implement workshop_strategy interface');
}
}
return $this->strategyinstance;
}
/**
* Sets the current evaluation method to the given plugin.
*
* @param string $method the name of the workshopeval subplugin
* @return bool true if successfully set
* @throws coding_exception if attempting to set a non-installed evaluation method
*/
public function set_grading_evaluation_method($method) {
global $DB;
$evaluationlib = __DIR__ . '/eval/' . $method . '/lib.php';
if (is_readable($evaluationlib)) {
$this->evaluationinstance = null;
$this->evaluation = $method;
$DB->set_field('workshop', 'evaluation', $method, array('id' => $this->id));
return true;
}
throw new coding_exception('Attempt to set a non-existing evaluation method.');
}
/**
* Returns instance of grading evaluation class
*
* @return stdclass Instance of a grading evaluation
*/
public function grading_evaluation_instance() {
global $CFG; // because we require other libs here
if (is_null($this->evaluationinstance)) {
if (empty($this->evaluation)) {
$this->evaluation = 'best';
}
$evaluationlib = __DIR__ . '/eval/' . $this->evaluation . '/lib.php';
if (is_readable($evaluationlib)) {
require_once($evaluationlib);
} else {
// Fall back in case the subplugin is not available.
$this->evaluation = 'best';
$evaluationlib = __DIR__ . '/eval/' . $this->evaluation . '/lib.php';
if (is_readable($evaluationlib)) {
require_once($evaluationlib);
} else {
// Fall back in case the subplugin is not available any more.
throw new coding_exception('Missing default grading evaluation library ' . $evaluationlib);
}
}
$classname = 'workshop_' . $this->evaluation . '_evaluation';
$this->evaluationinstance = new $classname($this);
if (!in_array('workshop_evaluation', class_parents($this->evaluationinstance))) {
throw new coding_exception($classname . ' does not extend workshop_evaluation class');
}
}
return $this->evaluationinstance;
}
/**
* Returns instance of submissions allocator
*
* @param string $method The name of the allocation method, must be PARAM_ALPHA
* @return stdclass Instance of submissions allocator
*/
public function allocator_instance($method) {
global $CFG; // because we require other libs here
$allocationlib = __DIR__ . '/allocation/' . $method . '/lib.php';
if (is_readable($allocationlib)) {
require_once($allocationlib);
} else {
throw new coding_exception('Unable to find the allocation library ' . $allocationlib);
}
$classname = 'workshop_' . $method . '_allocator';
return new $classname($this);
}
/**
* @return moodle_url of this workshop's view page
*/
public function view_url() {
global $CFG;
return new moodle_url('/mod/workshop/view.php', array('id' => $this->cm->id));
}
/**
* @return moodle_url of the page for editing this workshop's grading form
*/
public function editform_url() {
global $CFG;
return new moodle_url('/mod/workshop/editform.php', array('cmid' => $this->cm->id));
}
/**
* @return moodle_url of the page for previewing this workshop's grading form
*/
public function previewform_url() {
global $CFG;
return new moodle_url('/mod/workshop/editformpreview.php', array('cmid' => $this->cm->id));
}
/**
* @param int $assessmentid The ID of assessment record
* @return moodle_url of the assessment page
*/
public function assess_url($assessmentid) {
global $CFG;
$assessmentid = clean_param($assessmentid, PARAM_INT);
return new moodle_url('/mod/workshop/assessment.php', array('asid' => $assessmentid));
}
/**
* @param int $assessmentid The ID of assessment record
* @return moodle_url of the example assessment page
*/
public function exassess_url($assessmentid) {
global $CFG;
$assessmentid = clean_param($assessmentid, PARAM_INT);
return new moodle_url('/mod/workshop/exassessment.php', array('asid' => $assessmentid));
}
/**
* @return moodle_url of the page to view a submission, defaults to the own one
*/
public function submission_url($id=null) {
global $CFG;
return new moodle_url('/mod/workshop/submission.php', array('cmid' => $this->cm->id, 'id' => $id));
}
/**
* @param int $id example submission id
* @return moodle_url of the page to view an example submission
*/
public function exsubmission_url($id) {
global $CFG;
return new moodle_url('/mod/workshop/exsubmission.php', array('cmid' => $this->cm->id, 'id' => $id));
}
/**
* @param int $sid submission id
* @param array $aid of int assessment ids
* @return moodle_url of the page to compare assessments of the given submission
*/
public function compare_url($sid, array $aids) {
global $CFG;
$url = new moodle_url('/mod/workshop/compare.php', array('cmid' => $this->cm->id, 'sid' => $sid));
$i = 0;
foreach ($aids as $aid) {
$url->param("aid{$i}", $aid);
$i++;
}
return $url;
}
/**
* @param int $sid submission id
* @param int $aid assessment id
* @return moodle_url of the page to compare the reference assessments of the given example submission
*/
public function excompare_url($sid, $aid) {
global $CFG;
return new moodle_url('/mod/workshop/excompare.php', array('cmid' => $this->cm->id, 'sid' => $sid, 'aid' => $aid));
}
/**
* @return moodle_url of the mod_edit form
*/
public function updatemod_url() {
global $CFG;
return new moodle_url('/course/modedit.php', array('update' => $this->cm->id, 'return' => 1));
}
/**
* @param string $method allocation method
* @return moodle_url to the allocation page
*/
public function allocation_url($method=null) {
global $CFG;
$params = array('cmid' => $this->cm->id);
if (!empty($method)) {
$params['method'] = $method;
}
return new moodle_url('/mod/workshop/allocation.php', $params);
}
/**
* @param int $phasecode The internal phase code
* @return moodle_url of the script to change the current phase to $phasecode
*/
public function switchphase_url($phasecode) {
global $CFG;
$phasecode = clean_param($phasecode, PARAM_INT);
return new moodle_url('/mod/workshop/switchphase.php', array('cmid' => $this->cm->id, 'phase' => $phasecode));
}
/**
* @return moodle_url to the aggregation page
*/
public function aggregate_url() {
global $CFG;
return new moodle_url('/mod/workshop/aggregate.php', array('cmid' => $this->cm->id));
}
/**
* @return moodle_url of this workshop's toolbox page
*/
public function toolbox_url($tool) {
global $CFG;
return new moodle_url('/mod/workshop/toolbox.php', array('id' => $this->cm->id, 'tool' => $tool));
}
/**
* Workshop wrapper around {@see add_to_log()}
* @deprecated since 2.7 Please use the provided event classes for logging actions.
*
* @param string $action to be logged
* @param moodle_url $url absolute url as returned by {@see workshop::submission_url()} and friends
* @param mixed $info additional info, usually id in a table
* @param bool $return true to return the arguments for add_to_log.
* @return void|array array of arguments for add_to_log if $return is true
*/
public function log($action, moodle_url $url = null, $info = null, $return = false) {
debugging('The log method is now deprecated, please use event classes instead', DEBUG_DEVELOPER);
if (is_null($url)) {
$url = $this->view_url();
}
if (is_null($info)) {
$info = $this->id;
}
$logurl = $this->log_convert_url($url);
$args = array($this->course->id, 'workshop', $action, $logurl, $info, $this->cm->id);
if ($return) {
return $args;
}
call_user_func_array('add_to_log', $args);
}
/**
* Is the given user allowed to create their submission?
*
* @param int $userid
* @return bool
*/
public function creating_submission_allowed($userid) {
$now = time();
$ignoredeadlines = has_capability('mod/workshop:ignoredeadlines', $this->context, $userid);
if ($this->latesubmissions) {
if ($this->phase != self::PHASE_SUBMISSION and $this->phase != self::PHASE_ASSESSMENT) {
// late submissions are allowed in the submission and assessment phase only
return false;
}
if (!$ignoredeadlines and !empty($this->submissionstart) and $this->submissionstart > $now) {
// late submissions are not allowed before the submission start
return false;
}
return true;
} else {
if ($this->phase != self::PHASE_SUBMISSION) {
// submissions are allowed during the submission phase only
return false;
}
if (!$ignoredeadlines and !empty($this->submissionstart) and $this->submissionstart > $now) {
// if enabled, submitting is not allowed before the date/time defined in the mod_form
return false;
}
if (!$ignoredeadlines and !empty($this->submissionend) and $now > $this->submissionend ) {
// if enabled, submitting is not allowed after the date/time defined in the mod_form unless late submission is allowed
return false;
}
return true;
}
}
/**
* Is the given user allowed to modify their existing submission?
*
* @param int $userid
* @return bool
*/
public function modifying_submission_allowed($userid) {
$now = time();
$ignoredeadlines = has_capability('mod/workshop:ignoredeadlines', $this->context, $userid);
if ($this->phase != self::PHASE_SUBMISSION) {
// submissions can be edited during the submission phase only
return false;
}
if (!$ignoredeadlines and !empty($this->submissionstart) and $this->submissionstart > $now) {
// if enabled, re-submitting is not allowed before the date/time defined in the mod_form
return false;
}
if (!$ignoredeadlines and !empty($this->submissionend) and $now > $this->submissionend) {
// if enabled, re-submitting is not allowed after the date/time defined in the mod_form even if late submission is allowed
return false;
}
return true;
}
/**
* Is the given reviewer allowed to create/edit their assessments?
*
* @param int $userid
* @return bool
*/
public function assessing_allowed($userid) {
if ($this->phase != self::PHASE_ASSESSMENT) {
// assessing is allowed in the assessment phase only, unless the user is a teacher
// providing additional assessment during the evaluation phase
if ($this->phase != self::PHASE_EVALUATION or !has_capability('mod/workshop:overridegrades', $this->context, $userid)) {
return false;
}
}
$now = time();
$ignoredeadlines = has_capability('mod/workshop:ignoredeadlines', $this->context, $userid);
if (!$ignoredeadlines and !empty($this->assessmentstart) and $this->assessmentstart > $now) {
// if enabled, assessing is not allowed before the date/time defined in the mod_form
return false;
}
if (!$ignoredeadlines and !empty($this->assessmentend) and $now > $this->assessmentend) {
// if enabled, assessing is not allowed after the date/time defined in the mod_form
return false;
}
// here we go, assessing is allowed
return true;
}
/**
* Are reviewers allowed to create/edit their assessments of the example submissions?
*
* Returns null if example submissions are not enabled in this workshop. Otherwise returns
* true or false. Note this does not check other conditions like the number of already
* assessed examples, examples mode etc.
*
* @return null|bool
*/
public function assessing_examples_allowed() {
if (empty($this->useexamples)) {
return null;
}
if (self::EXAMPLES_VOLUNTARY == $this->examplesmode) {
return true;
}
if (self::EXAMPLES_BEFORE_SUBMISSION == $this->examplesmode and self::PHASE_SUBMISSION == $this->phase) {
return true;
}
if (self::EXAMPLES_BEFORE_ASSESSMENT == $this->examplesmode and self::PHASE_ASSESSMENT == $this->phase) {
return true;
}
return false;
}
/**
* Are the peer-reviews available to the authors?
*
* @return bool
*/
public function assessments_available() {
return $this->phase == self::PHASE_CLOSED;
}
/**
* Switch to a new workshop phase
*
* Modifies the underlying database record. You should terminate the script shortly after calling this.
*
* @param int $newphase new phase code
* @return bool true if success, false otherwise
*/
public function switch_phase($newphase) {
global $DB;
$known = $this->available_phases_list();
if (!isset($known[$newphase])) {
return false;
}
if (self::PHASE_CLOSED == $newphase) {
// push the grades into the gradebook
$workshop = new stdclass();
foreach ($this as $property => $value) {
$workshop->{$property} = $value;
}
$workshop->course = $this->course->id;
$workshop->cmidnumber = $this->cm->id;
$workshop->modname = 'workshop';
workshop_update_grades($workshop);
}
$DB->set_field('workshop', 'phase', $newphase, array('id' => $this->id));
$this->phase = $newphase;
$eventdata = array(
'objectid' => $this->id,
'context' => $this->context,
'other' => array(
'workshopphase' => $this->phase
)
);
$event = \mod_workshop\event\phase_switched::create($eventdata);
$event->trigger();
return true;
}
/**
* Saves a raw grade for submission as calculated from the assessment form fields
*
* @param array $assessmentid assessment record id, must exists
* @param mixed $grade raw percentual grade from 0.00000 to 100.00000
* @return false|float the saved grade
*/
public function set_peer_grade($assessmentid, $grade) {
global $DB;
if (is_null($grade)) {
return false;
}
$data = new stdclass();
$data->id = $assessmentid;
$data->grade = $grade;
$data->timemodified = time();
$DB->update_record('workshop_assessments', $data);
return $grade;
}
/**
* Prepares data object with all workshop grades to be rendered
*
* @param int $userid the user we are preparing the report for
* @param int $groupid if non-zero, prepare the report for the given group only
* @param int $page the current page (for the pagination)
* @param int $perpage participants per page (for the pagination)
* @param string $sortby lastname|firstname|submissiontitle|submissiongrade|gradinggrade
* @param string $sorthow ASC|DESC
* @return stdclass data for the renderer
*/
public function prepare_grading_report_data($userid, $groupid, $page, $perpage, $sortby, $sorthow) {
global $DB;
$canviewall = has_capability('mod/workshop:viewallassessments', $this->context, $userid);
$isparticipant = $this->is_participant($userid);
if (!$canviewall and !$isparticipant) {
// who the hell is this?
return array();
}
if (!in_array($sortby, array('lastname', 'firstname', 'submissiontitle', 'submissionmodified',
'submissiongrade', 'gradinggrade'))) {
$sortby = 'lastname';
}
if (!($sorthow === 'ASC' or $sorthow === 'DESC')) {
$sorthow = 'ASC';
}
// get the list of user ids to be displayed
if ($canviewall) {
$participants = $this->get_participants(false, $groupid);
} else {
// this is an ordinary workshop participant (aka student) - display the report just for him/her
$participants = array($userid => (object)array('id' => $userid));
}
// we will need to know the number of all records later for the pagination purposes
$numofparticipants = count($participants);
if ($numofparticipants > 0) {
// load all fields which can be used for sorting and paginate the records
list($participantids, $params) = $DB->get_in_or_equal(array_keys($participants), SQL_PARAMS_NAMED);
$params['workshopid1'] = $this->id;
$params['workshopid2'] = $this->id;
$sqlsort = array();
$sqlsortfields = array($sortby => $sorthow) + array('lastname' => 'ASC', 'firstname' => 'ASC', 'u.id' => 'ASC');
foreach ($sqlsortfields as $sqlsortfieldname => $sqlsortfieldhow) {
$sqlsort[] = $sqlsortfieldname . ' ' . $sqlsortfieldhow;
}
$sqlsort = implode(',', $sqlsort);
$picturefields = user_picture::fields('u', array(), 'userid');
$sql = "SELECT $picturefields, s.title AS submissiontitle, s.timemodified AS submissionmodified,
s.grade AS submissiongrade, ag.gradinggrade
FROM {user} u
LEFT JOIN {workshop_submissions} s ON (s.authorid = u.id AND s.workshopid = :workshopid1 AND s.example = 0)
LEFT JOIN {workshop_aggregations} ag ON (ag.userid = u.id AND ag.workshopid = :workshopid2)
WHERE u.id $participantids
ORDER BY $sqlsort";
$participants = $DB->get_records_sql($sql, $params, $page * $perpage, $perpage);
} else {
$participants = array();
}
// this will hold the information needed to display user names and pictures
$userinfo = array();
// get the user details for all participants to display
$additionalnames = get_all_user_name_fields();
foreach ($participants as $participant) {
if (!isset($userinfo[$participant->userid])) {
$userinfo[$participant->userid] = new stdclass();
$userinfo[$participant->userid]->id = $participant->userid;
$userinfo[$participant->userid]->picture = $participant->picture;
$userinfo[$participant->userid]->imagealt = $participant->imagealt;
$userinfo[$participant->userid]->email = $participant->email;
foreach ($additionalnames as $addname) {
$userinfo[$participant->userid]->$addname = $participant->$addname;
}
}
}
// load the submissions details
$submissions = $this->get_submissions(array_keys($participants));
// get the user details for all moderators (teachers) that have overridden a submission grade
foreach ($submissions as $submission) {
if (!isset($userinfo[$submission->gradeoverby])) {
$userinfo[$submission->gradeoverby] = new stdclass();
$userinfo[$submission->gradeoverby]->id = $submission->gradeoverby;
$userinfo[$submission->gradeoverby]->picture = $submission->overpicture;
$userinfo[$submission->gradeoverby]->imagealt = $submission->overimagealt;
$userinfo[$submission->gradeoverby]->email = $submission->overemail;
foreach ($additionalnames as $addname) {
$temp = 'over' . $addname;
$userinfo[$submission->gradeoverby]->$addname = $submission->$temp;
}
}
}
// get the user details for all reviewers of the displayed participants
$reviewers = array();
if ($submissions) {
list($submissionids, $params) = $DB->get_in_or_equal(array_keys($submissions), SQL_PARAMS_NAMED);
list($sort, $sortparams) = users_order_by_sql('r');
$picturefields = user_picture::fields('r', array(), 'reviewerid');
$sql = "SELECT a.id AS assessmentid, a.submissionid, a.grade, a.gradinggrade, a.gradinggradeover, a.weight,
$picturefields, s.id AS submissionid, s.authorid
FROM {workshop_assessments} a
JOIN {user} r ON (a.reviewerid = r.id)
JOIN {workshop_submissions} s ON (a.submissionid = s.id AND s.example = 0)
WHERE a.submissionid $submissionids
ORDER BY a.weight DESC, $sort";
$reviewers = $DB->get_records_sql($sql, array_merge($params, $sortparams));
foreach ($reviewers as $reviewer) {
if (!isset($userinfo[$reviewer->reviewerid])) {
$userinfo[$reviewer->reviewerid] = new stdclass();
$userinfo[$reviewer->reviewerid]->id = $reviewer->reviewerid;
$userinfo[$reviewer->reviewerid]->picture = $reviewer->picture;
$userinfo[$reviewer->reviewerid]->imagealt = $reviewer->imagealt;
$userinfo[$reviewer->reviewerid]->email = $reviewer->email;
foreach ($additionalnames as $addname) {
$userinfo[$reviewer->reviewerid]->$addname = $reviewer->$addname;
}
}
}
}
// get the user details for all reviewees of the displayed participants
$reviewees = array();
if ($participants) {
list($participantids, $params) = $DB->get_in_or_equal(array_keys($participants), SQL_PARAMS_NAMED);
list($sort, $sortparams) = users_order_by_sql('e');
$params['workshopid'] = $this->id;
$picturefields = user_picture::fields('e', array(), 'authorid');
$sql = "SELECT a.id AS assessmentid, a.submissionid, a.grade, a.gradinggrade, a.gradinggradeover, a.reviewerid, a.weight,
s.id AS submissionid, $picturefields
FROM {user} u
JOIN {workshop_assessments} a ON (a.reviewerid = u.id)
JOIN {workshop_submissions} s ON (a.submissionid = s.id AND s.example = 0)
JOIN {user} e ON (s.authorid = e.id)
WHERE u.id $participantids AND s.workshopid = :workshopid
ORDER BY a.weight DESC, $sort";
$reviewees = $DB->get_records_sql($sql, array_merge($params, $sortparams));
foreach ($reviewees as $reviewee) {
if (!isset($userinfo[$reviewee->authorid])) {
$userinfo[$reviewee->authorid] = new stdclass();
$userinfo[$reviewee->authorid]->id = $reviewee->authorid;
$userinfo[$reviewee->authorid]->picture = $reviewee->picture;
$userinfo[$reviewee->authorid]->imagealt = $reviewee->imagealt;
$userinfo[$reviewee->authorid]->email = $reviewee->email;
foreach ($additionalnames as $addname) {
$userinfo[$reviewee->authorid]->$addname = $reviewee->$addname;
}
}
}
}
// finally populate the object to be rendered
$grades = $participants;
foreach ($participants as $participant) {
// set up default (null) values
$grades[$participant->userid]->submissionid = null;
$grades[$participant->userid]->submissiontitle = null;
$grades[$participant->userid]->submissiongrade = null;
$grades[$participant->userid]->submissiongradeover = null;
$grades[$participant->userid]->submissiongradeoverby = null;
$grades[$participant->userid]->submissionpublished = null;
$grades[$participant->userid]->reviewedby = array();
$grades[$participant->userid]->reviewerof = array();
}
unset($participants);
unset($participant);
foreach ($submissions as $submission) {
$grades[$submission->authorid]->submissionid = $submission->id;
$grades[$submission->authorid]->submissiontitle = $submission->title;
$grades[$submission->authorid]->submissiongrade = $this->real_grade($submission->grade);
$grades[$submission->authorid]->submissiongradeover = $this->real_grade($submission->gradeover);
$grades[$submission->authorid]->submissiongradeoverby = $submission->gradeoverby;
$grades[$submission->authorid]->submissionpublished = $submission->published;
}
unset($submissions);
unset($submission);
foreach($reviewers as $reviewer) {
$info = new stdclass();
$info->userid = $reviewer->reviewerid;
$info->assessmentid = $reviewer->assessmentid;
$info->submissionid = $reviewer->submissionid;
$info->grade = $this->real_grade($reviewer->grade);
$info->gradinggrade = $this->real_grading_grade($reviewer->gradinggrade);
$info->gradinggradeover = $this->real_grading_grade($reviewer->gradinggradeover);
$info->weight = $reviewer->weight;
$grades[$reviewer->authorid]->reviewedby[$reviewer->reviewerid] = $info;
}
unset($reviewers);
unset($reviewer);
foreach($reviewees as $reviewee) {
$info = new stdclass();
$info->userid = $reviewee->authorid;
$info->assessmentid = $reviewee->assessmentid;
$info->submissionid = $reviewee->submissionid;
$info->grade = $this->real_grade($reviewee->grade);
$info->gradinggrade = $this->real_grading_grade($reviewee->gradinggrade);
$info->gradinggradeover = $this->real_grading_grade($reviewee->gradinggradeover);
$info->weight = $reviewee->weight;
$grades[$reviewee->reviewerid]->reviewerof[$reviewee->authorid] = $info;
}
unset($reviewees);
unset($reviewee);
foreach ($grades as $grade) {
$grade->gradinggrade = $this->real_grading_grade($grade->gradinggrade);
}
$data = new stdclass();
$data->grades = $grades;
$data->userinfo = $userinfo;
$data->totalcount = $numofparticipants;
$data->maxgrade = $this->real_grade(100);
$data->maxgradinggrade = $this->real_grading_grade(100);
return $data;
}
/**
* Calculates the real value of a grade
*
* @param float $value percentual value from 0 to 100
* @param float $max the maximal grade
* @return string
*/
public function real_grade_value($value, $max) {
$localized = true;
if (is_null($value) or $value === '') {
return null;
} elseif ($max == 0) {
return 0;
} else {
return format_float($max * $value / 100, $this->gradedecimals, $localized);
}
}
/**
* Calculates the raw (percentual) value from a real grade
*
* This is used in cases when a user wants to give a grade such as 12 of 20 and we need to save
* this value in a raw percentual form into DB
* @param float $value given grade
* @param float $max the maximal grade
* @return float suitable to be stored as numeric(10,5)
*/
public function raw_grade_value($value, $max) {
if (is_null($value) or $value === '') {
return null;
}
if ($max == 0 or $value < 0) {
return 0;
}
$p = $value / $max * 100;
if ($p > 100) {
return $max;
}
return grade_floatval($p);
}
/**
* Calculates the real value of grade for submission
*
* @param float $value percentual value from 0 to 100
* @return string
*/
public function real_grade($value) {
return $this->real_grade_value($value, $this->grade);
}
/**
* Calculates the real value of grade for assessment
*
* @param float $value percentual value from 0 to 100
* @return string
*/
public function real_grading_grade($value) {
return $this->real_grade_value($value, $this->gradinggrade);
}
/**
* Sets the given grades and received grading grades to null
*
* This does not clear the information about how the peers filled the assessment forms, but
* clears the calculated grades in workshop_assessments. Therefore reviewers have to re-assess
* the allocated submissions.
*
* @return void
*/
public function clear_assessments() {
global $DB;
$submissions = $this->get_submissions();
if (empty($submissions)) {
// no money, no love
return;
}
$submissions = array_keys($submissions);
list($sql, $params) = $DB->get_in_or_equal($submissions, SQL_PARAMS_NAMED);
$sql = "submissionid $sql";
$DB->set_field_select('workshop_assessments', 'grade', null, $sql, $params);
$DB->set_field_select('workshop_assessments', 'gradinggrade', null, $sql, $params);
}
/**
* Sets the grades for submission to null
*
* @param null|int|array $restrict If null, update all authors, otherwise update just grades for the given author(s)
* @return void
*/
public function clear_submission_grades($restrict=null) {
global $DB;
$sql = "workshopid = :workshopid AND example = 0";
$params = array('workshopid' => $this->id);
if (is_null($restrict)) {
// update all users - no more conditions
} elseif (!empty($restrict)) {
list($usql, $uparams) = $DB->get_in_or_equal($restrict, SQL_PARAMS_NAMED);
$sql .= " AND authorid $usql";
$params = array_merge($params, $uparams);
} else {
throw new coding_exception('Empty value is not a valid parameter here');
}
$DB->set_field_select('workshop_submissions', 'grade', null, $sql, $params);
}
/**
* Calculates grades for submission for the given participant(s) and updates it in the database
*
* @param null|int|array $restrict If null, update all authors, otherwise update just grades for the given author(s)
* @return void
*/
public function aggregate_submission_grades($restrict=null) {
global $DB;
// fetch a recordset with all assessments to process
$sql = 'SELECT s.id AS submissionid, s.grade AS submissiongrade,
a.weight, a.grade
FROM {workshop_submissions} s
LEFT JOIN {workshop_assessments} a ON (a.submissionid = s.id)
WHERE s.example=0 AND s.workshopid=:workshopid'; // to be cont.
$params = array('workshopid' => $this->id);
if (is_null($restrict)) {
// update all users - no more conditions
} elseif (!empty($restrict)) {
list($usql, $uparams) = $DB->get_in_or_equal($restrict, SQL_PARAMS_NAMED);
$sql .= " AND s.authorid $usql";
$params = array_merge($params, $uparams);
} else {
throw new coding_exception('Empty value is not a valid parameter here');
}
$sql .= ' ORDER BY s.id'; // this is important for bulk processing
$rs = $DB->get_recordset_sql($sql, $params);
$batch = array(); // will contain a set of all assessments of a single submission
$previous = null; // a previous record in the recordset
foreach ($rs as $current) {
if (is_null($previous)) {
// we are processing the very first record in the recordset
$previous = $current;
}
if ($current->submissionid == $previous->submissionid) {
// we are still processing the current submission
$batch[] = $current;
} else {
// process all the assessments of a sigle submission
$this->aggregate_submission_grades_process($batch);
// and then start to process another submission
$batch = array($current);
$previous = $current;
}
}
// do not forget to process the last batch!
$this->aggregate_submission_grades_process($batch);
$rs->close();
}
/**
* Sets the aggregated grades for assessment to null
*
* @param null|int|array $restrict If null, update all reviewers, otherwise update just grades for the given reviewer(s)
* @return void
*/
public function clear_grading_grades($restrict=null) {
global $DB;
$sql = "workshopid = :workshopid";
$params = array('workshopid' => $this->id);
if (is_null($restrict)) {
// update all users - no more conditions
} elseif (!empty($restrict)) {
list($usql, $uparams) = $DB->get_in_or_equal($restrict, SQL_PARAMS_NAMED);
$sql .= " AND userid $usql";
$params = array_merge($params, $uparams);
} else {
throw new coding_exception('Empty value is not a valid parameter here');
}
$DB->set_field_select('workshop_aggregations', 'gradinggrade', null, $sql, $params);
}
/**
* Calculates grades for assessment for the given participant(s)
*
* Grade for assessment is calculated as a simple mean of all grading grades calculated by the grading evaluator.
* The assessment weight is not taken into account here.
*
* @param null|int|array $restrict If null, update all reviewers, otherwise update just grades for the given reviewer(s)
* @return void
*/
public function aggregate_grading_grades($restrict=null) {
global $DB;
// fetch a recordset with all assessments to process
$sql = 'SELECT a.reviewerid, a.gradinggrade, a.gradinggradeover,
ag.id AS aggregationid, ag.gradinggrade AS aggregatedgrade
FROM {workshop_assessments} a
INNER JOIN {workshop_submissions} s ON (a.submissionid = s.id)
LEFT JOIN {workshop_aggregations} ag ON (ag.userid = a.reviewerid AND ag.workshopid = s.workshopid)
WHERE s.example=0 AND s.workshopid=:workshopid'; // to be cont.
$params = array('workshopid' => $this->id);
if (is_null($restrict)) {
// update all users - no more conditions
} elseif (!empty($restrict)) {
list($usql, $uparams) = $DB->get_in_or_equal($restrict, SQL_PARAMS_NAMED);
$sql .= " AND a.reviewerid $usql";
$params = array_merge($params, $uparams);
} else {
throw new coding_exception('Empty value is not a valid parameter here');
}
$sql .= ' ORDER BY a.reviewerid'; // this is important for bulk processing
$rs = $DB->get_recordset_sql($sql, $params);
$batch = array(); // will contain a set of all assessments of a single submission
$previous = null; // a previous record in the recordset
foreach ($rs as $current) {
if (is_null($previous)) {
// we are processing the very first record in the recordset
$previous = $current;
}
if ($current->reviewerid == $previous->reviewerid) {
// we are still processing the current reviewer
$batch[] = $current;
} else {
// process all the assessments of a sigle submission
$this->aggregate_grading_grades_process($batch);
// and then start to process another reviewer
$batch = array($current);
$previous = $current;
}
}
// do not forget to process the last batch!
$this->aggregate_grading_grades_process($batch);
$rs->close();
}
/**
* Returns the mform the teachers use to put a feedback for the reviewer
*
* @param mixed moodle_url|null $actionurl
* @param stdClass $assessment
* @param array $options editable, editableweight, overridablegradinggrade
* @return workshop_feedbackreviewer_form
*/
public function get_feedbackreviewer_form($actionurl, stdclass $assessment, $options=array()) {
global $CFG;
require_once(__DIR__ . '/feedbackreviewer_form.php');
$current = new stdclass();
$current->asid = $assessment->id;
$current->weight = $assessment->weight;
$current->gradinggrade = $this->real_grading_grade($assessment->gradinggrade);
$current->gradinggradeover = $this->real_grading_grade($assessment->gradinggradeover);
$current->feedbackreviewer = $assessment->feedbackreviewer;
$current->feedbackreviewerformat = $assessment->feedbackreviewerformat;
if (is_null($current->gradinggrade)) {
$current->gradinggrade = get_string('nullgrade', 'workshop');
}
if (!isset($options['editable'])) {
$editable = true; // by default
} else {
$editable = (bool)$options['editable'];
}
// prepare wysiwyg editor
$current = file_prepare_standard_editor($current, 'feedbackreviewer', array());
return new workshop_feedbackreviewer_form($actionurl,
array('workshop' => $this, 'current' => $current, 'editoropts' => array(), 'options' => $options),
'post', '', null, $editable);
}
/**
* Returns the mform the teachers use to put a feedback for the author on their submission
*
* @mixed moodle_url|null $actionurl
* @param stdClass $submission
* @param array $options editable
* @return workshop_feedbackauthor_form
*/
public function get_feedbackauthor_form($actionurl, stdclass $submission, $options=array()) {
global $CFG;
require_once(__DIR__ . '/feedbackauthor_form.php');
$current = new stdclass();
$current->submissionid = $submission->id;
$current->published = $submission->published;
$current->grade = $this->real_grade($submission->grade);
$current->gradeover = $this->real_grade($submission->gradeover);
$current->feedbackauthor = $submission->feedbackauthor;
$current->feedbackauthorformat = $submission->feedbackauthorformat;
if (is_null($current->grade)) {
$current->grade = get_string('nullgrade', 'workshop');
}
if (!isset($options['editable'])) {
$editable = true; // by default
} else {
$editable = (bool)$options['editable'];
}
// prepare wysiwyg editor
$current = file_prepare_standard_editor($current, 'feedbackauthor', array());
return new workshop_feedbackauthor_form($actionurl,
array('workshop' => $this, 'current' => $current, 'editoropts' => array(), 'options' => $options),
'post', '', null, $editable);
}
/**
* Returns the information about the user's grades as they are stored in the gradebook
*
* The submission grade is returned for users with the capability mod/workshop:submit and the
* assessment grade is returned for users with the capability mod/workshop:peerassess. Unless the
* user has the capability to view hidden grades, grades must be visible to be returned. Null
* grades are not returned. If none grade is to be returned, this method returns false.
*
* @param int $userid the user's id
* @return workshop_final_grades|false
*/
public function get_gradebook_grades($userid) {
global $CFG;
require_once($CFG->libdir.'/gradelib.php');
if (empty($userid)) {
throw new coding_exception('User id expected, empty value given.');
}
// Read data via the Gradebook API
$gradebook = grade_get_grades($this->course->id, 'mod', 'workshop', $this->id, $userid);
$grades = new workshop_final_grades();
if (has_capability('mod/workshop:submit', $this->context, $userid)) {
if (!empty($gradebook->items[0]->grades)) {
$submissiongrade = reset($gradebook->items[0]->grades);
if (!is_null($submissiongrade->grade)) {
if (!$submissiongrade->hidden or has_capability('moodle/grade:viewhidden', $this->context, $userid)) {
$grades->submissiongrade = $submissiongrade;
}
}
}
}
if (has_capability('mod/workshop:peerassess', $this->context, $userid)) {
if (!empty($gradebook->items[1]->grades)) {
$assessmentgrade = reset($gradebook->items[1]->grades);
if (!is_null($assessmentgrade->grade)) {
if (!$assessmentgrade->hidden or has_capability('moodle/grade:viewhidden', $this->context, $userid)) {
$grades->assessmentgrade = $assessmentgrade;
}
}
}
}
if (!is_null($grades->submissiongrade) or !is_null($grades->assessmentgrade)) {
return $grades;
}
return false;
}
/**
* Return the editor options for the submission content field.
*
* @return array
*/
public function submission_content_options() {
global $CFG;
require_once($CFG->dirroot.'/repository/lib.php');
return array(
'trusttext' => true,
'subdirs' => false,
'maxfiles' => $this->nattachments,
'maxbytes' => $this->maxbytes,
'context' => $this->context,
'return_types' => FILE_INTERNAL | FILE_EXTERNAL,
);
}
/**
* Return the filemanager options for the submission attachments field.
*
* @return array
*/
public function submission_attachment_options() {
global $CFG;
require_once($CFG->dirroot.'/repository/lib.php');
$options = array(
'subdirs' => true,
'maxfiles' => $this->nattachments,
'maxbytes' => $this->maxbytes,
'return_types' => FILE_INTERNAL | FILE_CONTROLLED_LINK,
);
$filetypesutil = new \core_form\filetypes_util();
$options['accepted_types'] = $filetypesutil->normalize_file_types($this->submissionfiletypes);
return $options;
}
/**
* Return the editor options for the overall feedback for the author.
*
* @return array
*/
public function overall_feedback_content_options() {
global $CFG;
require_once($CFG->dirroot.'/repository/lib.php');
return array(
'subdirs' => 0,
'maxbytes' => $this->overallfeedbackmaxbytes,
'maxfiles' => $this->overallfeedbackfiles,
'changeformat' => 1,
'context' => $this->context,
'return_types' => FILE_INTERNAL,
);
}
/**
* Return the filemanager options for the overall feedback for the author.
*
* @return array
*/
public function overall_feedback_attachment_options() {
global $CFG;
require_once($CFG->dirroot.'/repository/lib.php');
$options = array(
'subdirs' => 1,
'maxbytes' => $this->overallfeedbackmaxbytes,
'maxfiles' => $this->overallfeedbackfiles,
'return_types' => FILE_INTERNAL | FILE_CONTROLLED_LINK,
);
$filetypesutil = new \core_form\filetypes_util();
$options['accepted_types'] = $filetypesutil->normalize_file_types($this->overallfeedbackfiletypes);
return $options;
}
/**
* Performs the reset of this workshop instance.
*
* @param stdClass $data The actual course reset settings.
* @return array List of results, each being array[(string)component, (string)item, (string)error]
*/
public function reset_userdata(stdClass $data) {
$componentstr = get_string('pluginname', 'workshop').': '.format_string($this->name);
$status = array();
if (!empty($data->reset_workshop_assessments) or !empty($data->reset_workshop_submissions)) {
// Reset all data related to assessments, including assessments of
// example submissions.
$result = $this->reset_userdata_assessments($data);
if ($result === true) {
$status[] = array(
'component' => $componentstr,
'item' => get_string('resetassessments', 'mod_workshop'),
'error' => false,
);
} else {
$status[] = array(
'component' => $componentstr,
'item' => get_string('resetassessments', 'mod_workshop'),
'error' => $result,
);
}
}
if (!empty($data->reset_workshop_submissions)) {
// Reset all remaining data related to submissions.
$result = $this->reset_userdata_submissions($data);
if ($result === true) {
$status[] = array(
'component' => $componentstr,
'item' => get_string('resetsubmissions', 'mod_workshop'),
'error' => false,
);
} else {
$status[] = array(
'component' => $componentstr,
'item' => get_string('resetsubmissions', 'mod_workshop'),
'error' => $result,
);
}
}
if (!empty($data->reset_workshop_phase)) {
// Do not use the {@link workshop::switch_phase()} here, we do not
// want to trigger events.
$this->reset_phase();
$status[] = array(
'component' => $componentstr,
'item' => get_string('resetsubmissions', 'mod_workshop'),
'error' => false,
);
}
return $status;
}
/**
* Check if the current user can access the other user's group.
*
* This is typically used for teacher roles that have permissions like
* 'view all submissions'. Even with such a permission granted, we have to
* check the workshop activity group mode.
*
* If the workshop is not in a group mode, or if it is in the visible group
* mode, this method returns true. This is consistent with how the
* {@link groups_get_activity_allowed_groups()} behaves.
*
* If the workshop is in a separate group mode, the current user has to
* have the 'access all groups' permission, or share at least one
* accessible group with the other user.
*
* @param int $otheruserid The ID of the other user, e.g. the author of a submission.
* @return bool False if the current user cannot access the other user's group.
*/
public function check_group_membership($otheruserid) {
global $USER;
if (groups_get_activity_groupmode($this->cm) != SEPARATEGROUPS) {
// The workshop is not in a group mode, or it is in a visible group mode.
return true;
} else if (has_capability('moodle/site:accessallgroups', $this->context)) {
// The current user can access all groups.
return true;
} else {
$thisusersgroups = groups_get_all_groups($this->course->id, $USER->id, $this->cm->groupingid, 'g.id');
$otherusersgroups = groups_get_all_groups($this->course->id, $otheruserid, $this->cm->groupingid, 'g.id');
$commongroups = array_intersect_key($thisusersgroups, $otherusersgroups);
if (empty($commongroups)) {
// The current user has no group common with the other user.
return false;
} else {
// The current user has a group common with the other user.
return true;
}
}
}
/**
* Check whether the given user has assessed all his required examples before submission.
*
* @param int $userid the user to check
* @return bool false if there are examples missing assessment, true otherwise.
* @since Moodle 3.4
*/
public function check_examples_assessed_before_submission($userid) {
if ($this->useexamples and $this->examplesmode == self::EXAMPLES_BEFORE_SUBMISSION
and !has_capability('mod/workshop:manageexamples', $this->context)) {
// Check that all required examples have been assessed by the user.
$examples = $this->get_examples_for_reviewer($userid);
foreach ($examples as $exampleid => $example) {
if (is_null($example->assessmentid)) {
$examples[$exampleid]->assessmentid = $this->add_allocation($example, $userid, 0);
}
if (is_null($example->grade)) {
return false;
}
}
}
return true;
}
/**
* Check that all required examples have been assessed by the given user.
*
* @param stdClass $userid the user (reviewer) to check
* @return mixed bool|state false and notice code if there are examples missing assessment, true otherwise.
* @since Moodle 3.4
*/
public function check_examples_assessed_before_assessment($userid) {
if ($this->useexamples and $this->examplesmode == self::EXAMPLES_BEFORE_ASSESSMENT
and !has_capability('mod/workshop:manageexamples', $this->context)) {
// The reviewer must have submitted their own submission.
$reviewersubmission = $this->get_submission_by_author($userid);
if (!$reviewersubmission) {
// No money, no love.
return array(false, 'exampleneedsubmission');
} else {
$examples = $this->get_examples_for_reviewer($userid);
foreach ($examples as $exampleid => $example) {
if (is_null($example->grade)) {
return array(false, 'exampleneedassessed');
}
}
}
}
return array(true, null);
}
/**
* Trigger module viewed event and set the module viewed for completion.
*
* @since Moodle 3.4
*/
public function set_module_viewed() {
global $CFG;
require_once($CFG->libdir . '/completionlib.php');
// Mark viewed.
$completion = new completion_info($this->course);
$completion->set_module_viewed($this->cm);
$eventdata = array();
$eventdata['objectid'] = $this->id;
$eventdata['context'] = $this->context;
// Trigger module viewed event.
$event = \mod_workshop\event\course_module_viewed::create($eventdata);
$event->add_record_snapshot('course', $this->course);
$event->add_record_snapshot('workshop', $this->dbrecord);
$event->add_record_snapshot('course_modules', $this->cm);
$event->trigger();
}
/**
* Validates the submission form or WS data.
*
* @param array $data the data to be validated
* @return array the validation errors (if any)
* @since Moodle 3.4
*/
public function validate_submission_data($data) {
global $DB, $USER;
$errors = array();
if (empty($data['id']) and empty($data['example'])) {
// Make sure there is no submission saved meanwhile from another browser window.
$sql = "SELECT COUNT(s.id)
FROM {workshop_submissions} s
JOIN {workshop} w ON (s.workshopid = w.id)
JOIN {course_modules} cm ON (w.id = cm.instance)
JOIN {modules} m ON (m.name = 'workshop' AND m.id = cm.module)
WHERE cm.id = ? AND s.authorid = ? AND s.example = 0";
if ($DB->count_records_sql($sql, array($data['cmid'], $USER->id))) {
$errors['title'] = get_string('err_multiplesubmissions', 'mod_workshop');
}
}
// Get the workshop record by id or cmid, depending on whether we're creating or editing a submission.
if (empty($data['workshopid'])) {
$workshop = $DB->get_record_select('workshop', 'id = (SELECT instance FROM {course_modules} WHERE id = ?)',
[$data['cmid']]);
} else {
$workshop = $DB->get_record('workshop', ['id' => $data['workshopid']]);
}
if (isset($data['attachment_filemanager'])) {
$getfiles = file_get_drafarea_files($data['attachment_filemanager']);
$attachments = $getfiles->list;
} else {
$attachments = array();
}
if ($workshop->submissiontypefile == WORKSHOP_SUBMISSION_TYPE_REQUIRED) {
if (empty($attachments)) {
$errors['attachment_filemanager'] = get_string('err_required', 'form');
}
} else if ($workshop->submissiontypefile == WORKSHOP_SUBMISSION_TYPE_DISABLED && !empty($data['attachment_filemanager'])) {
$errors['attachment_filemanager'] = get_string('submissiontypedisabled', 'mod_workshop');
}
if ($workshop->submissiontypetext == WORKSHOP_SUBMISSION_TYPE_REQUIRED && html_is_blank($data['content_editor']['text'])) {
$errors['content_editor'] = get_string('err_required', 'form');
} else if ($workshop->submissiontypetext == WORKSHOP_SUBMISSION_TYPE_DISABLED && !empty($data['content_editor']['text'])) {
$errors['content_editor'] = get_string('submissiontypedisabled', 'mod_workshop');
}
// If neither type is explicitly required, one or the other must be submitted.
if ($workshop->submissiontypetext != WORKSHOP_SUBMISSION_TYPE_REQUIRED
&& $workshop->submissiontypefile != WORKSHOP_SUBMISSION_TYPE_REQUIRED
&& empty($attachments) && html_is_blank($data['content_editor']['text'])) {
$errors['content_editor'] = get_string('submissionrequiredcontent', 'mod_workshop');
$errors['attachment_filemanager'] = get_string('submissionrequiredfile', 'mod_workshop');
}
return $errors;
}
/**
* Adds or updates a submission.
*
* @param stdClass $submission The submissin data (via form or via WS).
* @return the new or updated submission id.
* @since Moodle 3.4
*/
public function edit_submission($submission) {
global $USER, $DB;
if ($submission->example == 0) {
// This was used just for validation, it must be set to zero when dealing with normal submissions.
unset($submission->example);
} else {
throw new coding_exception('Invalid submission form data value: example');
}
$timenow = time();
if (is_null($submission->id)) {
$submission->workshopid = $this->id;
$submission->example = 0;
$submission->authorid = $USER->id;
$submission->timecreated = $timenow;
$submission->feedbackauthorformat = editors_get_preferred_format();
}
$submission->timemodified = $timenow;
$submission->title = trim($submission->title);
$submission->content = ''; // Updated later.
$submission->contentformat = FORMAT_HTML; // Updated later.
$submission->contenttrust = 0; // Updated later.
$submission->late = 0x0; // Bit mask.
if (!empty($this->submissionend) and ($this->submissionend < time())) {
$submission->late = $submission->late | 0x1;
}
if ($this->phase == self::PHASE_ASSESSMENT) {
$submission->late = $submission->late | 0x2;
}
// Event information.
$params = array(
'context' => $this->context,
'courseid' => $this->course->id,
'other' => array(
'submissiontitle' => $submission->title
)
);
$logdata = null;
if (is_null($submission->id)) {
$submission->id = $DB->insert_record('workshop_submissions', $submission);
$params['objectid'] = $submission->id;
$event = \mod_workshop\event\submission_created::create($params);
$event->trigger();
} else {
if (empty($submission->id) or empty($submission->id) or ($submission->id != $submission->id)) {
throw new moodle_exception('err_submissionid', 'workshop');
}
}
$params['objectid'] = $submission->id;
// Save and relink embedded images and save attachments.
if ($this->submissiontypetext != WORKSHOP_SUBMISSION_TYPE_DISABLED) {
$submission = file_postupdate_standard_editor($submission, 'content', $this->submission_content_options(),
$this->context, 'mod_workshop', 'submission_content', $submission->id);
}
$submission = file_postupdate_standard_filemanager($submission, 'attachment', $this->submission_attachment_options(),
$this->context, 'mod_workshop', 'submission_attachment', $submission->id);
if (empty($submission->attachment)) {
// Explicit cast to zero integer.
$submission->attachment = 0;
}
// Store the updated values or re-save the new submission (re-saving needed because URLs are now rewritten).
$DB->update_record('workshop_submissions', $submission);
$event = \mod_workshop\event\submission_updated::create($params);
$event->add_record_snapshot('workshop', $this->dbrecord);
$event->trigger();
// Send submitted content for plagiarism detection.
$fs = get_file_storage();
$files = $fs->get_area_files($this->context->id, 'mod_workshop', 'submission_attachment', $submission->id);
$params['other']['content'] = $submission->content;
$params['other']['pathnamehashes'] = array_keys($files);
$event = \mod_workshop\event\assessable_uploaded::create($params);
$event->set_legacy_logdata($logdata);
$event->trigger();
return $submission->id;
}
/**
* Helper method for validating if the current user can view the given assessment.
*
* @param stdClass $assessment assessment object
* @param stdClass $submission submission object
* @return void
* @throws moodle_exception
* @since Moodle 3.4
*/
public function check_view_assessment($assessment, $submission) {
global $USER;
$isauthor = $submission->authorid == $USER->id;
$isreviewer = $assessment->reviewerid == $USER->id;
$canviewallassessments = has_capability('mod/workshop:viewallassessments', $this->context);
$canviewallsubmissions = has_capability('mod/workshop:viewallsubmissions', $this->context);
$canviewallsubmissions = $canviewallsubmissions && $this->check_group_membership($submission->authorid);
if (!$isreviewer and !$isauthor and !($canviewallassessments and $canviewallsubmissions)) {
print_error('nopermissions', 'error', $this->view_url(), 'view this assessment');
}
if ($isauthor and !$isreviewer and !$canviewallassessments and $this->phase != self::PHASE_CLOSED) {
// Authors can see assessments of their work at the end of workshop only.
print_error('nopermissions', 'error', $this->view_url(), 'view assessment of own work before workshop is closed');
}
}
/**
* Helper method for validating if the current user can edit the given assessment.
*
* @param stdClass $assessment assessment object
* @param stdClass $submission submission object
* @return void
* @throws moodle_exception
* @since Moodle 3.4
*/
public function check_edit_assessment($assessment, $submission) {
global $USER;
$this->check_view_assessment($assessment, $submission);
// Further checks.
$isreviewer = ($USER->id == $assessment->reviewerid);
$assessmenteditable = $isreviewer && $this->assessing_allowed($USER->id);
if (!$assessmenteditable) {
throw new moodle_exception('nopermissions', 'error', '', 'edit assessments');
}
list($assessed, $notice) = $this->check_examples_assessed_before_assessment($assessment->reviewerid);
if (!$assessed) {
throw new moodle_exception($notice, 'mod_workshop');
}
}
/**
* Adds information to an allocated assessment (function used the first time a review is done or when updating an existing one).
*
* @param stdClass $assessment the assessment
* @param stdClass $submission the submission
* @param stdClass $data the assessment data to be added or Updated
* @param stdClass $strategy the strategy instance
* @return float|null Raw percentual grade (0.00000 to 100.00000) for submission
* @since Moodle 3.4
*/
public function edit_assessment($assessment, $submission, $data, $strategy) {
global $DB;
$cansetassessmentweight = has_capability('mod/workshop:allocate', $this->context);
// Let the grading strategy subplugin save its data.
$rawgrade = $strategy->save_assessment($assessment, $data);
// Store the data managed by the workshop core.
$coredata = (object)array('id' => $assessment->id);
if (isset($data->feedbackauthor_editor)) {
$coredata->feedbackauthor_editor = $data->feedbackauthor_editor;
$coredata = file_postupdate_standard_editor($coredata, 'feedbackauthor', $this->overall_feedback_content_options(),
$this->context, 'mod_workshop', 'overallfeedback_content', $assessment->id);
unset($coredata->feedbackauthor_editor);
}
if (isset($data->feedbackauthorattachment_filemanager)) {
$coredata->feedbackauthorattachment_filemanager = $data->feedbackauthorattachment_filemanager;
$coredata = file_postupdate_standard_filemanager($coredata, 'feedbackauthorattachment',
$this->overall_feedback_attachment_options(), $this->context, 'mod_workshop', 'overallfeedback_attachment',
$assessment->id);
unset($coredata->feedbackauthorattachment_filemanager);
if (empty($coredata->feedbackauthorattachment)) {
$coredata->feedbackauthorattachment = 0;
}
}
if (isset($data->weight) and $cansetassessmentweight) {
$coredata->weight = $data->weight;
}
// Update the assessment data if there is something other than just the 'id'.
if (count((array)$coredata) > 1 ) {
$DB->update_record('workshop_assessments', $coredata);
$params = array(
'relateduserid' => $submission->authorid,
'objectid' => $assessment->id,
'context' => $this->context,
'other' => array(
'workshopid' => $this->id,
'submissionid' => $assessment->submissionid
)
);
if (is_null($assessment->grade)) {
// All workshop_assessments are created when allocations are made. The create event is of more use located here.
$event = \mod_workshop\event\submission_assessed::create($params);
$event->trigger();
} else {
$params['other']['grade'] = $assessment->grade;
$event = \mod_workshop\event\submission_reassessed::create($params);
$event->trigger();
}
}
return $rawgrade;
}
/**
* Evaluates an assessment.
*
* @param stdClass $assessment the assessment
* @param stdClass $data the assessment data to be updated
* @param bool $cansetassessmentweight whether the user can change the assessment weight
* @param bool $canoverridegrades whether the user can override the assessment grades
* @return void
* @since Moodle 3.4
*/
public function evaluate_assessment($assessment, $data, $cansetassessmentweight, $canoverridegrades) {
global $DB, $USER;
$data = file_postupdate_standard_editor($data, 'feedbackreviewer', array(), $this->context);
$record = new stdclass();
$record->id = $assessment->id;
if ($cansetassessmentweight) {
$record->weight = $data->weight;
}
if ($canoverridegrades) {
$record->gradinggradeover = $this->raw_grade_value($data->gradinggradeover, $this->gradinggrade);
$record->gradinggradeoverby = $USER->id;
$record->feedbackreviewer = $data->feedbackreviewer;
$record->feedbackreviewerformat = $data->feedbackreviewerformat;
}
$DB->update_record('workshop_assessments', $record);
}
/**
* Trigger submission viewed event.
*
* @param stdClass $submission submission object
* @since Moodle 3.4
*/
public function set_submission_viewed($submission) {
$params = array(
'objectid' => $submission->id,
'context' => $this->context,
'courseid' => $this->course->id,
'relateduserid' => $submission->authorid,
'other' => array(
'workshopid' => $this->id
)
);
$event = \mod_workshop\event\submission_viewed::create($params);
$event->trigger();
}
/**
* Evaluates a submission.
*
* @param stdClass $submission the submission
* @param stdClass $data the submission data to be updated
* @param bool $canpublish whether the user can publish the submission
* @param bool $canoverride whether the user can override the submission grade
* @return void
* @since Moodle 3.4
*/
public function evaluate_submission($submission, $data, $canpublish, $canoverride) {
global $DB, $USER;
$data = file_postupdate_standard_editor($data, 'feedbackauthor', array(), $this->context);
$record = new stdclass();
$record->id = $submission->id;
if ($canoverride) {
$record->gradeover = $this->raw_grade_value($data->gradeover, $this->grade);
$record->gradeoverby = $USER->id;
$record->feedbackauthor = $data->feedbackauthor;
$record->feedbackauthorformat = $data->feedbackauthorformat;
}
if ($canpublish) {
$record->published = !empty($data->published);
}
$DB->update_record('workshop_submissions', $record);
}
////////////////////////////////////////////////////////////////////////////////
// Internal methods (implementation details) //
////////////////////////////////////////////////////////////////////////////////
/**
* Given an array of all assessments of a single submission, calculates the final grade for this submission
*
* This calculates the weighted mean of the passed assessment grades. If, however, the submission grade
* was overridden by a teacher, the gradeover value is returned and the rest of grades are ignored.
*
* @param array $assessments of stdclass(->submissionid ->submissiongrade ->gradeover ->weight ->grade)
* @return void
*/
protected function aggregate_submission_grades_process(array $assessments) {
global $DB;
$submissionid = null; // the id of the submission being processed
$current = null; // the grade currently saved in database
$finalgrade = null; // the new grade to be calculated
$sumgrades = 0;
$sumweights = 0;
foreach ($assessments as $assessment) {
if (is_null($submissionid)) {
// the id is the same in all records, fetch it during the first loop cycle
$submissionid = $assessment->submissionid;
}
if (is_null($current)) {
// the currently saved grade is the same in all records, fetch it during the first loop cycle
$current = $assessment->submissiongrade;
}
if (is_null($assessment->grade)) {
// this was not assessed yet
continue;
}
if ($assessment->weight == 0) {
// this does not influence the calculation
continue;
}
$sumgrades += $assessment->grade * $assessment->weight;
$sumweights += $assessment->weight;
}
if ($sumweights > 0 and is_null($finalgrade)) {
$finalgrade = grade_floatval($sumgrades / $sumweights);
}
// check if the new final grade differs from the one stored in the database
if (grade_floats_different($finalgrade, $current)) {
// we need to save new calculation into the database
$record = new stdclass();
$record->id = $submissionid;
$record->grade = $finalgrade;
$record->timegraded = time();
$DB->update_record('workshop_submissions', $record);
}
}
/**
* Given an array of all assessments done by a single reviewer, calculates the final grading grade
*
* This calculates the simple mean of the passed grading grades. If, however, the grading grade
* was overridden by a teacher, the gradinggradeover value is returned and the rest of grades are ignored.
*
* @param array $assessments of stdclass(->reviewerid ->gradinggrade ->gradinggradeover ->aggregationid ->aggregatedgrade)
* @param null|int $timegraded explicit timestamp of the aggregation, defaults to the current time
* @return void
*/
protected function aggregate_grading_grades_process(array $assessments, $timegraded = null) {
global $DB;
$reviewerid = null; // the id of the reviewer being processed
$current = null; // the gradinggrade currently saved in database
$finalgrade = null; // the new grade to be calculated
$agid = null; // aggregation id
$sumgrades = 0;
$count = 0;
if (is_null($timegraded)) {
$timegraded = time();
}
foreach ($assessments as $assessment) {
if (is_null($reviewerid)) {
// the id is the same in all records, fetch it during the first loop cycle
$reviewerid = $assessment->reviewerid;
}
if (is_null($agid)) {
// the id is the same in all records, fetch it during the first loop cycle
$agid = $assessment->aggregationid;
}
if (is_null($current)) {
// the currently saved grade is the same in all records, fetch it during the first loop cycle
$current = $assessment->aggregatedgrade;
}
if (!is_null($assessment->gradinggradeover)) {
// the grading grade for this assessment is overridden by a teacher
$sumgrades += $assessment->gradinggradeover;
$count++;
} else {
if (!is_null($assessment->gradinggrade)) {
$sumgrades += $assessment->gradinggrade;
$count++;
}
}
}
if ($count > 0) {
$finalgrade = grade_floatval($sumgrades / $count);
}
// Event information.
$params = array(
'context' => $this->context,
'courseid' => $this->course->id,
'relateduserid' => $reviewerid
);
// check if the new final grade differs from the one stored in the database
if (grade_floats_different($finalgrade, $current)) {
$params['other'] = array(
'currentgrade' => $current,
'finalgrade' => $finalgrade
);
// we need to save new calculation into the database
if (is_null($agid)) {
// no aggregation record yet
$record = new stdclass();
$record->workshopid = $this->id;
$record->userid = $reviewerid;
$record->gradinggrade = $finalgrade;
$record->timegraded = $timegraded;
$record->id = $DB->insert_record('workshop_aggregations', $record);
$params['objectid'] = $record->id;
$event = \mod_workshop\event\assessment_evaluated::create($params);
$event->trigger();
} else {
$record = new stdclass();
$record->id = $agid;
$record->gradinggrade = $finalgrade;
$record->timegraded = $timegraded;
$DB->update_record('workshop_aggregations', $record);
$params['objectid'] = $agid;
$event = \mod_workshop\event\assessment_reevaluated::create($params);
$event->trigger();
}
}
}
/**
* Returns SQL to fetch all enrolled users with the given capability in the current workshop
*
* The returned array consists of string $sql and the $params array. Note that the $sql can be
* empty if a grouping is selected and it has no groups.
*
* The list is automatically restricted according to any availability restrictions
* that apply to user lists (e.g. group, grouping restrictions).
*
* @param string $capability the name of the capability
* @param bool $musthavesubmission ff true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return array of (string)sql, (array)params
*/
protected function get_users_with_capability_sql($capability, $musthavesubmission, $groupid) {
global $CFG;
/** @var int static counter used to generate unique parameter holders */
static $inc = 0;
$inc++;
// If the caller requests all groups and we are using a selected grouping,
// recursively call this function for each group in the grouping (this is
// needed because get_enrolled_sql only supports a single group).
if (empty($groupid) and $this->cm->groupingid) {
$groupingid = $this->cm->groupingid;
$groupinggroupids = array_keys(groups_get_all_groups($this->cm->course, 0, $this->cm->groupingid, 'g.id'));
$sql = array();
$params = array();
foreach ($groupinggroupids as $groupinggroupid) {
if ($groupinggroupid > 0) { // just in case in order not to fall into the endless loop
list($gsql, $gparams) = $this->get_users_with_capability_sql($capability, $musthavesubmission, $groupinggroupid);
$sql[] = $gsql;
$params = array_merge($params, $gparams);
}
}
$sql = implode(PHP_EOL." UNION ".PHP_EOL, $sql);
return array($sql, $params);
}
list($esql, $params) = get_enrolled_sql($this->context, $capability, $groupid, true);
$userfields = user_picture::fields('u');
$sql = "SELECT $userfields
FROM {user} u
JOIN ($esql) je ON (je.id = u.id AND u.deleted = 0) ";
if ($musthavesubmission) {
$sql .= " JOIN {workshop_submissions} ws ON (ws.authorid = u.id AND ws.example = 0 AND ws.workshopid = :workshopid{$inc}) ";
$params['workshopid'.$inc] = $this->id;
}
// If the activity is restricted so that only certain users should appear
// in user lists, integrate this into the same SQL.
$info = new \core_availability\info_module($this->cm);
list ($listsql, $listparams) = $info->get_user_list_sql(false);
if ($listsql) {
$sql .= " JOIN ($listsql) restricted ON restricted.id = u.id ";
$params = array_merge($params, $listparams);
}
return array($sql, $params);
}
/**
* Returns SQL statement that can be used to fetch all actively enrolled participants in the workshop
*
* @param bool $musthavesubmission if true, return only users who have already submitted
* @param int $groupid 0 means ignore groups, any other value limits the result by group id
* @return array of (string)sql, (array)params
*/
protected function get_participants_sql($musthavesubmission=false, $groupid=0) {
list($sql1, $params1) = $this->get_users_with_capability_sql('mod/workshop:submit', $musthavesubmission, $groupid);
list($sql2, $params2) = $this->get_users_with_capability_sql('mod/workshop:peerassess', $musthavesubmission, $groupid);
if (empty($sql1) or empty($sql2)) {
if (empty($sql1) and empty($sql2)) {
return array('', array());
} else if (empty($sql1)) {
$sql = $sql2;
$params = $params2;
} else {
$sql = $sql1;
$params = $params1;
}
} else {
$sql = $sql1.PHP_EOL." UNION ".PHP_EOL.$sql2;
$params = array_merge($params1, $params2);
}
return array($sql, $params);
}
/**
* @return array of available workshop phases
*/
protected function available_phases_list() {
return array(
self::PHASE_SETUP => true,
self::PHASE_SUBMISSION => true,
self::PHASE_ASSESSMENT => true,
self::PHASE_EVALUATION => true,
self::PHASE_CLOSED => true,
);
}
/**
* Converts absolute URL to relative URL needed by {@see add_to_log()}
*
* @param moodle_url $url absolute URL
* @return string
*/
protected function log_convert_url(moodle_url $fullurl) {
static $baseurl;
if (!isset($baseurl)) {
$baseurl = new moodle_url('/mod/workshop/');
$baseurl = $baseurl->out();
}
return substr($fullurl->out(), strlen($baseurl));
}
/**
* Removes all user data related to assessments (including allocations).
*
* This includes assessments of example submissions as long as they are not
* referential assessments.
*
* @param stdClass $data The actual course reset settings.
* @return bool|string True on success, error message otherwise.
*/
protected function reset_userdata_assessments(stdClass $data) {
global $DB;
$sql = "SELECT a.id
FROM {workshop_assessments} a
JOIN {workshop_submissions} s ON (a.submissionid = s.id)
WHERE s.workshopid = :workshopid
AND (s.example = 0 OR (s.example = 1 AND a.weight = 0))";
$assessments = $DB->get_records_sql($sql, array('workshopid' => $this->id));
$this->delete_assessment(array_keys($assessments));
$DB->delete_records('workshop_aggregations', array('workshopid' => $this->id));
return true;
}
/**
* Removes all user data related to participants' submissions.
*
* @param stdClass $data The actual course reset settings.
* @return bool|string True on success, error message otherwise.
*/
protected function reset_userdata_submissions(stdClass $data) {
global $DB;
$submissions = $this->get_submissions();
foreach ($submissions as $submission) {
$this->delete_submission($submission);
}
return true;
}
/**
* Hard set the workshop phase to the setup one.
*/
protected function reset_phase() {
global $DB;
$DB->set_field('workshop', 'phase', self::PHASE_SETUP, array('id' => $this->id));
$this->phase = self::PHASE_SETUP;
}
}
////////////////////////////////////////////////////////////////////////////////
// Renderable components
////////////////////////////////////////////////////////////////////////////////
/**
* Represents the user planner tool
*
* Planner contains list of phases. Each phase contains list of tasks. Task is a simple object with
* title, link and completed (true/false/null logic).
*/
class workshop_user_plan implements renderable {
/** @var int id of the user this plan is for */
public $userid;
/** @var workshop */
public $workshop;
/** @var array of (stdclass)tasks */
public $phases = array();
/** @var null|array of example submissions to be assessed by the planner owner */
protected $examples = null;
/**
* Prepare an individual workshop plan for the given user.
*
* @param workshop $workshop instance
* @param int $userid whom the plan is prepared for
*/
public function __construct(workshop $workshop, $userid) {
global $DB;
$this->workshop = $workshop;
$this->userid = $userid;
//---------------------------------------------------------
// * SETUP | submission | assessment | evaluation | closed
//---------------------------------------------------------
$phase = new stdclass();
$phase->title = get_string('phasesetup', 'workshop');
$phase->tasks = array();
if (has_capability('moodle/course:manageactivities', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('taskintro', 'workshop');
$task->link = $workshop->updatemod_url();
$task->completed = !(trim($workshop->intro) == '');
$phase->tasks['intro'] = $task;
}
if (has_capability('moodle/course:manageactivities', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('taskinstructauthors', 'workshop');
$task->link = $workshop->updatemod_url();
$task->completed = !(trim($workshop->instructauthors) == '');
$phase->tasks['instructauthors'] = $task;
}
if (has_capability('mod/workshop:editdimensions', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('editassessmentform', 'workshop');
$task->link = $workshop->editform_url();
if ($workshop->grading_strategy_instance()->form_ready()) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_SETUP) {
$task->completed = false;
}
$phase->tasks['editform'] = $task;
}
if ($workshop->useexamples and has_capability('mod/workshop:manageexamples', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('prepareexamples', 'workshop');
if ($DB->count_records('workshop_submissions', array('example' => 1, 'workshopid' => $workshop->id)) > 0) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_SETUP) {
$task->completed = false;
}
$phase->tasks['prepareexamples'] = $task;
}
if (empty($phase->tasks) and $workshop->phase == workshop::PHASE_SETUP) {
// if we are in the setup phase and there is no task (typical for students), let us
// display some explanation what is going on
$task = new stdclass();
$task->title = get_string('undersetup', 'workshop');
$task->completed = 'info';
$phase->tasks['setupinfo'] = $task;
}
$this->phases[workshop::PHASE_SETUP] = $phase;
//---------------------------------------------------------
// setup | * SUBMISSION | assessment | evaluation | closed
//---------------------------------------------------------
$phase = new stdclass();
$phase->title = get_string('phasesubmission', 'workshop');
$phase->tasks = array();
if (has_capability('moodle/course:manageactivities', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('taskinstructreviewers', 'workshop');
$task->link = $workshop->updatemod_url();
if (trim($workshop->instructreviewers)) {
$task->completed = true;
} elseif ($workshop->phase >= workshop::PHASE_ASSESSMENT) {
$task->completed = false;
}
$phase->tasks['instructreviewers'] = $task;
}
if ($workshop->useexamples and $workshop->examplesmode == workshop::EXAMPLES_BEFORE_SUBMISSION
and has_capability('mod/workshop:submit', $workshop->context, $userid, false)
and !has_capability('mod/workshop:manageexamples', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('exampleassesstask', 'workshop');
$examples = $this->get_examples();
$a = new stdclass();
$a->expected = count($examples);
$a->assessed = 0;
foreach ($examples as $exampleid => $example) {
if (!is_null($example->grade)) {
$a->assessed++;
}
}
$task->details = get_string('exampleassesstaskdetails', 'workshop', $a);
if ($a->assessed == $a->expected) {
$task->completed = true;
} elseif ($workshop->phase >= workshop::PHASE_ASSESSMENT) {
$task->completed = false;
}
$phase->tasks['examples'] = $task;
}
if (has_capability('mod/workshop:submit', $workshop->context, $userid, false)) {
$task = new stdclass();
$task->title = get_string('tasksubmit', 'workshop');
$task->link = $workshop->submission_url();
if ($DB->record_exists('workshop_submissions', array('workshopid'=>$workshop->id, 'example'=>0, 'authorid'=>$userid))) {
$task->completed = true;
} elseif ($workshop->phase >= workshop::PHASE_ASSESSMENT) {
$task->completed = false;
} else {
$task->completed = null; // still has a chance to submit
}
$phase->tasks['submit'] = $task;
}
if (has_capability('mod/workshop:allocate', $workshop->context, $userid)) {
if ($workshop->phaseswitchassessment) {
$task = new stdClass();
$allocator = $DB->get_record('workshopallocation_scheduled', array('workshopid' => $workshop->id));
if (empty($allocator)) {
$task->completed = false;
} else if ($allocator->enabled and is_null($allocator->resultstatus)) {
$task->completed = true;
} else if ($workshop->submissionend > time()) {
$task->completed = null;
} else {
$task->completed = false;
}
$task->title = get_string('setup', 'workshopallocation_scheduled');
$task->link = $workshop->allocation_url('scheduled');
$phase->tasks['allocatescheduled'] = $task;
}
$task = new stdclass();
$task->title = get_string('allocate', 'workshop');
$task->link = $workshop->allocation_url();
$numofauthors = $workshop->count_potential_authors(false);
$numofsubmissions = $DB->count_records('workshop_submissions', array('workshopid'=>$workshop->id, 'example'=>0));
$sql = 'SELECT COUNT(s.id) AS nonallocated
FROM {workshop_submissions} s
LEFT JOIN {workshop_assessments} a ON (a.submissionid=s.id)
WHERE s.workshopid = :workshopid AND s.example=0 AND a.submissionid IS NULL';
$params['workshopid'] = $workshop->id;
$numnonallocated = $DB->count_records_sql($sql, $params);
if ($numofsubmissions == 0) {
$task->completed = null;
} elseif ($numnonallocated == 0) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_SUBMISSION) {
$task->completed = false;
} else {
$task->completed = null; // still has a chance to allocate
}
$a = new stdclass();
$a->expected = $numofauthors;
$a->submitted = $numofsubmissions;
$a->allocate = $numnonallocated;
$task->details = get_string('allocatedetails', 'workshop', $a);
unset($a);
$phase->tasks['allocate'] = $task;
if ($numofsubmissions < $numofauthors and $workshop->phase >= workshop::PHASE_SUBMISSION) {
$task = new stdclass();
$task->title = get_string('someuserswosubmission', 'workshop');
$task->completed = 'info';
$phase->tasks['allocateinfo'] = $task;
}
}
if ($workshop->submissionstart) {
$task = new stdclass();
$task->title = get_string('submissionstartdatetime', 'workshop', workshop::timestamp_formats($workshop->submissionstart));
$task->completed = 'info';
$phase->tasks['submissionstartdatetime'] = $task;
}
if ($workshop->submissionend) {
$task = new stdclass();
$task->title = get_string('submissionenddatetime', 'workshop', workshop::timestamp_formats($workshop->submissionend));
$task->completed = 'info';
$phase->tasks['submissionenddatetime'] = $task;
}
if (($workshop->submissionstart < time()) and $workshop->latesubmissions) {
// If submission deadline has passed and late submissions are allowed, only display 'latesubmissionsallowed' text to
// users (students) who have not submitted and users(teachers, admins) who can switch pahase..
if (has_capability('mod/workshop:switchphase', $workshop->context, $userid) ||
(!$workshop->get_submission_by_author($userid) && $workshop->submissionend < time())) {
$task = new stdclass();
$task->title = get_string('latesubmissionsallowed', 'workshop');
$task->completed = 'info';
$phase->tasks['latesubmissionsallowed'] = $task;
}
}
if (isset($phase->tasks['submissionstartdatetime']) or isset($phase->tasks['submissionenddatetime'])) {
if (has_capability('mod/workshop:ignoredeadlines', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('deadlinesignored', 'workshop');
$task->completed = 'info';
$phase->tasks['deadlinesignored'] = $task;
}
}
$this->phases[workshop::PHASE_SUBMISSION] = $phase;
//---------------------------------------------------------
// setup | submission | * ASSESSMENT | evaluation | closed
//---------------------------------------------------------
$phase = new stdclass();
$phase->title = get_string('phaseassessment', 'workshop');
$phase->tasks = array();
$phase->isreviewer = has_capability('mod/workshop:peerassess', $workshop->context, $userid);
if ($workshop->phase == workshop::PHASE_SUBMISSION and $workshop->phaseswitchassessment
and has_capability('mod/workshop:switchphase', $workshop->context, $userid)) {
$task = new stdClass();
$task->title = get_string('switchphase30auto', 'mod_workshop', workshop::timestamp_formats($workshop->submissionend));
$task->completed = 'info';
$phase->tasks['autoswitchinfo'] = $task;
}
if ($workshop->useexamples and $workshop->examplesmode == workshop::EXAMPLES_BEFORE_ASSESSMENT
and $phase->isreviewer and !has_capability('mod/workshop:manageexamples', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('exampleassesstask', 'workshop');
$examples = $workshop->get_examples_for_reviewer($userid);
$a = new stdclass();
$a->expected = count($examples);
$a->assessed = 0;
foreach ($examples as $exampleid => $example) {
if (!is_null($example->grade)) {
$a->assessed++;
}
}
$task->details = get_string('exampleassesstaskdetails', 'workshop', $a);
if ($a->assessed == $a->expected) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_ASSESSMENT) {
$task->completed = false;
}
$phase->tasks['examples'] = $task;
}
if (empty($phase->tasks['examples']) or !empty($phase->tasks['examples']->completed)) {
$phase->assessments = $workshop->get_assessments_by_reviewer($userid);
$numofpeers = 0; // number of allocated peer-assessments
$numofpeerstodo = 0; // number of peer-assessments to do
$numofself = 0; // number of allocated self-assessments - should be 0 or 1
$numofselftodo = 0; // number of self-assessments to do - should be 0 or 1
foreach ($phase->assessments as $a) {
if ($a->authorid == $userid) {
$numofself++;
if (is_null($a->grade)) {
$numofselftodo++;
}
} else {
$numofpeers++;
if (is_null($a->grade)) {
$numofpeerstodo++;
}
}
}
unset($a);
if ($numofpeers) {
$task = new stdclass();
if ($numofpeerstodo == 0) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_ASSESSMENT) {
$task->completed = false;
}
$a = new stdclass();
$a->total = $numofpeers;
$a->todo = $numofpeerstodo;
$task->title = get_string('taskassesspeers', 'workshop');
$task->details = get_string('taskassesspeersdetails', 'workshop', $a);
unset($a);
$phase->tasks['assesspeers'] = $task;
}
if ($workshop->useselfassessment and $numofself) {
$task = new stdclass();
if ($numofselftodo == 0) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_ASSESSMENT) {
$task->completed = false;
}
$task->title = get_string('taskassessself', 'workshop');
$phase->tasks['assessself'] = $task;
}
}
if ($workshop->assessmentstart) {
$task = new stdclass();
$task->title = get_string('assessmentstartdatetime', 'workshop', workshop::timestamp_formats($workshop->assessmentstart));
$task->completed = 'info';
$phase->tasks['assessmentstartdatetime'] = $task;
}
if ($workshop->assessmentend) {
$task = new stdclass();
$task->title = get_string('assessmentenddatetime', 'workshop', workshop::timestamp_formats($workshop->assessmentend));
$task->completed = 'info';
$phase->tasks['assessmentenddatetime'] = $task;
}
if (isset($phase->tasks['assessmentstartdatetime']) or isset($phase->tasks['assessmentenddatetime'])) {
if (has_capability('mod/workshop:ignoredeadlines', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('deadlinesignored', 'workshop');
$task->completed = 'info';
$phase->tasks['deadlinesignored'] = $task;
}
}
$this->phases[workshop::PHASE_ASSESSMENT] = $phase;
//---------------------------------------------------------
// setup | submission | assessment | * EVALUATION | closed
//---------------------------------------------------------
$phase = new stdclass();
$phase->title = get_string('phaseevaluation', 'workshop');
$phase->tasks = array();
if (has_capability('mod/workshop:overridegrades', $workshop->context)) {
$expected = $workshop->count_potential_authors(false);
$calculated = $DB->count_records_select('workshop_submissions',
'workshopid = ? AND (grade IS NOT NULL OR gradeover IS NOT NULL)', array($workshop->id));
$task = new stdclass();
$task->title = get_string('calculatesubmissiongrades', 'workshop');
$a = new stdclass();
$a->expected = $expected;
$a->calculated = $calculated;
$task->details = get_string('calculatesubmissiongradesdetails', 'workshop', $a);
if ($calculated >= $expected) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_EVALUATION) {
$task->completed = false;
}
$phase->tasks['calculatesubmissiongrade'] = $task;
$expected = $workshop->count_potential_reviewers(false);
$calculated = $DB->count_records_select('workshop_aggregations',
'workshopid = ? AND gradinggrade IS NOT NULL', array($workshop->id));
$task = new stdclass();
$task->title = get_string('calculategradinggrades', 'workshop');
$a = new stdclass();
$a->expected = $expected;
$a->calculated = $calculated;
$task->details = get_string('calculategradinggradesdetails', 'workshop', $a);
if ($calculated >= $expected) {
$task->completed = true;
} elseif ($workshop->phase > workshop::PHASE_EVALUATION) {
$task->completed = false;
}
$phase->tasks['calculategradinggrade'] = $task;
} elseif ($workshop->phase == workshop::PHASE_EVALUATION) {
$task = new stdclass();
$task->title = get_string('evaluategradeswait', 'workshop');
$task->completed = 'info';
$phase->tasks['evaluateinfo'] = $task;
}
if (has_capability('moodle/course:manageactivities', $workshop->context, $userid)) {
$task = new stdclass();
$task->title = get_string('taskconclusion', 'workshop');
$task->link = $workshop->updatemod_url();
if (trim($workshop->conclusion)) {
$task->completed = true;
} elseif ($workshop->phase >= workshop::PHASE_EVALUATION) {
$task->completed = false;
}
$phase->tasks['conclusion'] = $task;
}
$this->phases[workshop::PHASE_EVALUATION] = $phase;
//---------------------------------------------------------
// setup | submission | assessment | evaluation | * CLOSED
//---------------------------------------------------------
$phase = new stdclass();
$phase->title = get_string('phaseclosed', 'workshop');
$phase->tasks = array();
$this->phases[workshop::PHASE_CLOSED] = $phase;
// Polish data, set default values if not done explicitly
foreach ($this->phases as $phasecode => $phase) {
$phase->title = isset($phase->title) ? $phase->title : '';
$phase->tasks = isset($phase->tasks) ? $phase->tasks : array();
if ($phasecode == $workshop->phase) {
$phase->active = true;
} else {
$phase->active = false;
}
if (!isset($phase->actions)) {
$phase->actions = array();
}
foreach ($phase->tasks as $taskcode => $task) {
$task->title = isset($task->title) ? $task->title : '';
$task->link = isset($task->link) ? $task->link : null;
$task->details = isset($task->details) ? $task->details : '';
$task->completed = isset($task->completed) ? $task->completed : null;
}
}
// Add phase switching actions.
if (has_capability('mod/workshop:switchphase', $workshop->context, $userid)) {
$nextphases = array(
workshop::PHASE_SETUP => workshop::PHASE_SUBMISSION,
workshop::PHASE_SUBMISSION => workshop::PHASE_ASSESSMENT,
workshop::PHASE_ASSESSMENT => workshop::PHASE_EVALUATION,
workshop::PHASE_EVALUATION => workshop::PHASE_CLOSED,
);
foreach ($this->phases as $phasecode => $phase) {
if ($phase->active) {
if (isset($nextphases[$workshop->phase])) {
$task = new stdClass();
$task->title = get_string('switchphasenext', 'mod_workshop');
$task->link = $workshop->switchphase_url($nextphases[$workshop->phase]);
$task->details = '';
$task->completed = null;
$phase->tasks['switchtonextphase'] = $task;
}
} else {
$action = new stdclass();
$action->type = 'switchphase';
$action->url = $workshop->switchphase_url($phasecode);
$phase->actions[] = $action;
}
}
}
}
/**
* Returns example submissions to be assessed by the owner of the planner
*
* This is here to cache the DB query because the same list is needed later in view.php
*
* @see workshop::get_examples_for_reviewer() for the format of returned value
* @return array
*/
public function get_examples() {
if (is_null($this->examples)) {
$this->examples = $this->workshop->get_examples_for_reviewer($this->userid);
}
return $this->examples;
}
}
/**
* Common base class for submissions and example submissions rendering
*
* Subclasses of this class convert raw submission record from
* workshop_submissions table (as returned by {@see workshop::get_submission_by_id()}
* for example) into renderable objects.
*/
abstract class workshop_submission_base {
/** @var bool is the submission anonymous (i.e. contains author information) */
protected $anonymous;
/* @var array of columns from workshop_submissions that are assigned as properties */
protected $fields = array();
/** @var workshop */
protected $workshop;
/**
* Copies the properties of the given database record into properties of $this instance
*
* @param workshop $workshop
* @param stdClass $submission full record
* @param bool $showauthor show the author-related information
* @param array $options additional properties
*/
public function __construct(workshop $workshop, stdClass $submission, $showauthor = false) {
$this->workshop = $workshop;
foreach ($this->fields as $field) {
if (!property_exists($submission, $field)) {
throw new coding_exception('Submission record must provide public property ' . $field);
}
if (!property_exists($this, $field)) {
throw new coding_exception('Renderable component must accept public property ' . $field);
}
$this->{$field} = $submission->{$field};
}
if ($showauthor) {
$this->anonymous = false;
} else {
$this->anonymize();
}
}
/**
* Unsets all author-related properties so that the renderer does not have access to them
*
* Usually this is called by the contructor but can be called explicitely, too.
*/
public function anonymize() {
$authorfields = explode(',', user_picture::fields());
foreach ($authorfields as $field) {
$prefixedusernamefield = 'author' . $field;
unset($this->{$prefixedusernamefield});
}
$this->anonymous = true;
}
/**
* Does the submission object contain author-related information?
*
* @return null|boolean
*/
public function is_anonymous() {
return $this->anonymous;
}
}
/**
* Renderable object containing a basic set of information needed to display the submission summary
*
* @see workshop_renderer::render_workshop_submission_summary
*/
class workshop_submission_summary extends workshop_submission_base implements renderable {
/** @var int */
public $id;
/** @var string */
public $title;
/** @var string graded|notgraded */
public $status;
/** @var int */
public $timecreated;
/** @var int */
public $timemodified;
/** @var int */
public $authorid;
/** @var string */
public $authorfirstname;
/** @var string */
public $authorlastname;
/** @var string */
public $authorfirstnamephonetic;
/** @var string */
public $authorlastnamephonetic;
/** @var string */
public $authormiddlename;
/** @var string */
public $authoralternatename;
/** @var int */
public $authorpicture;
/** @var string */
public $authorimagealt;
/** @var string */
public $authoremail;
/** @var moodle_url to display submission */
public $url;
/**
* @var array of columns from workshop_submissions that are assigned as properties
* of instances of this class
*/
protected $fields = array(
'id', 'title', 'timecreated', 'timemodified',
'authorid', 'authorfirstname', 'authorlastname', 'authorfirstnamephonetic', 'authorlastnamephonetic',
'authormiddlename', 'authoralternatename', 'authorpicture',
'authorimagealt', 'authoremail');
}
/**
* Renderable object containing all the information needed to display the submission
*
* @see workshop_renderer::render_workshop_submission()
*/
class workshop_submission extends workshop_submission_summary implements renderable {
/** @var string */
public $content;
/** @var int */
public $contentformat;
/** @var bool */
public $contenttrust;
/** @var array */
public $attachment;
/**
* @var array of columns from workshop_submissions that are assigned as properties
* of instances of this class
*/
protected $fields = array(
'id', 'title', 'timecreated', 'timemodified', 'content', 'contentformat', 'contenttrust',
'attachment', 'authorid', 'authorfirstname', 'authorlastname', 'authorfirstnamephonetic', 'authorlastnamephonetic',
'authormiddlename', 'authoralternatename', 'authorpicture', 'authorimagealt', 'authoremail');
}
/**
* Renderable object containing a basic set of information needed to display the example submission summary
*
* @see workshop::prepare_example_summary()
* @see workshop_renderer::render_workshop_example_submission_summary()
*/
class workshop_example_submission_summary extends workshop_submission_base implements renderable {
/** @var int */
public $id;
/** @var string */
public $title;
/** @var string graded|notgraded */
public $status;
/** @var stdClass */
public $gradeinfo;
/** @var moodle_url */
public $url;
/** @var moodle_url */
public $editurl;
/** @var string */
public $assesslabel;
/** @var moodle_url */
public $assessurl;
/** @var bool must be set explicitly by the caller */
public $editable = false;
/**
* @var array of columns from workshop_submissions that are assigned as properties
* of instances of this class
*/
protected $fields = array('id', 'title');
/**
* Example submissions are always anonymous
*
* @return true
*/
public function is_anonymous() {
return true;
}
}
/**
* Renderable object containing all the information needed to display the example submission
*
* @see workshop_renderer::render_workshop_example_submission()
*/
class workshop_example_submission extends workshop_example_submission_summary implements renderable {
/** @var string */
public $content;
/** @var int */
public $contentformat;
/** @var bool */
public $contenttrust;
/** @var array */
public $attachment;
/**
* @var array of columns from workshop_submissions that are assigned as properties
* of instances of this class
*/
protected $fields = array('id', 'title', 'content', 'contentformat', 'contenttrust', 'attachment');
}
/**
* Common base class for assessments rendering
*
* Subclasses of this class convert raw assessment record from
* workshop_assessments table (as returned by {@see workshop::get_assessment_by_id()}
* for example) into renderable objects.
*/
abstract class workshop_assessment_base {
/** @var string the optional title of the assessment */
public $title = '';
/** @var workshop_assessment_form $form as returned by {@link workshop_strategy::get_assessment_form()} */
public $form;
/** @var moodle_url */
public $url;
/** @var float|null the real received grade */
public $realgrade = null;
/** @var float the real maximum grade */
public $maxgrade;
/** @var stdClass|null reviewer user info */
public $reviewer = null;
/** @var stdClass|null assessed submission's author user info */
public $author = null;
/** @var array of actions */
public $actions = array();
/* @var array of columns that are assigned as properties */
protected $fields = array();
/** @var workshop */
public $workshop;
/**
* Copies the properties of the given database record into properties of $this instance
*
* The $options keys are: showreviewer, showauthor
* @param workshop $workshop
* @param stdClass $assessment full record
* @param array $options additional properties
*/
public function __construct(workshop $workshop, stdClass $record, array $options = array()) {
$this->workshop = $workshop;
$this->validate_raw_record($record);
foreach ($this->fields as $field) {
if (!property_exists($record, $field)) {
throw new coding_exception('Assessment record must provide public property ' . $field);
}
if (!property_exists($this, $field)) {
throw new coding_exception('Renderable component must accept public property ' . $field);
}
$this->{$field} = $record->{$field};
}
if (!empty($options['showreviewer'])) {
$this->reviewer = user_picture::unalias($record, null, 'revieweridx', 'reviewer');
}
if (!empty($options['showauthor'])) {
$this->author = user_picture::unalias($record, null, 'authorid', 'author');
}
}
/**
* Adds a new action
*
* @param moodle_url $url action URL
* @param string $label action label
* @param string $method get|post
*/
public function add_action(moodle_url $url, $label, $method = 'get') {
$action = new stdClass();
$action->url = $url;
$action->label = $label;
$action->method = $method;
$this->actions[] = $action;
}
/**
* Makes sure that we can cook the renderable component from the passed raw database record
*
* @param stdClass $assessment full assessment record
* @throws coding_exception if the caller passed unexpected data
*/
protected function validate_raw_record(stdClass $record) {
// nothing to do here
}
}
/**
* Represents a rendarable full assessment
*/
class workshop_assessment extends workshop_assessment_base implements renderable {
/** @var int */
public $id;
/** @var int */
public $submissionid;
/** @var int */
public $weight;
/** @var int */
public $timecreated;
/** @var int */
public $timemodified;
/** @var float */
public $grade;
/** @var float */
public $gradinggrade;
/** @var float */
public $gradinggradeover;
/** @var string */
public $feedbackauthor;
/** @var int */
public $feedbackauthorformat;
/** @var int */
public $feedbackauthorattachment;
/** @var array */
protected $fields = array('id', 'submissionid', 'weight', 'timecreated',
'timemodified', 'grade', 'gradinggrade', 'gradinggradeover', 'feedbackauthor',
'feedbackauthorformat', 'feedbackauthorattachment');
/**
* Format the overall feedback text content
*
* False is returned if the overall feedback feature is disabled. Null is returned
* if the overall feedback content has not been found. Otherwise, string with
* formatted feedback text is returned.
*
* @return string|bool|null
*/
public function get_overall_feedback_content() {
if ($this->workshop->overallfeedbackmode == 0) {
return false;
}
if (trim($this->feedbackauthor) === '') {
return null;
}
$content = file_rewrite_pluginfile_urls($this->feedbackauthor, 'pluginfile.php', $this->workshop->context->id,
'mod_workshop', 'overallfeedback_content', $this->id);
$content = format_text($content, $this->feedbackauthorformat,
array('overflowdiv' => true, 'context' => $this->workshop->context));
return $content;
}
/**
* Prepares the list of overall feedback attachments
*
* Returns false if overall feedback attachments are not allowed. Otherwise returns
* list of attachments (may be empty).
*
* @return bool|array of stdClass
*/
public function get_overall_feedback_attachments() {
if ($this->workshop->overallfeedbackmode == 0) {
return false;
}
if ($this->workshop->overallfeedbackfiles == 0) {
return false;
}
if (empty($this->feedbackauthorattachment)) {
return array();
}
$attachments = array();
$fs = get_file_storage();
$files = $fs->get_area_files($this->workshop->context->id, 'mod_workshop', 'overallfeedback_attachment', $this->id);
foreach ($files as $file) {
if ($file->is_directory()) {
continue;
}
$filepath = $file->get_filepath();
$filename = $file->get_filename();
$fileurl = moodle_url::make_pluginfile_url($this->workshop->context->id, 'mod_workshop',
'overallfeedback_attachment', $this->id, $filepath, $filename, true);
$previewurl = new moodle_url(moodle_url::make_pluginfile_url($this->workshop->context->id, 'mod_workshop',
'overallfeedback_attachment', $this->id, $filepath, $filename, false), array('preview' => 'bigthumb'));
$attachments[] = (object)array(
'filepath' => $filepath,
'filename' => $filename,
'fileurl' => $fileurl,
'previewurl' => $previewurl,
'mimetype' => $file->get_mimetype(),
);
}
return $attachments;
}
}
/**
* Represents a renderable training assessment of an example submission
*/
class workshop_example_assessment extends workshop_assessment implements renderable {
/**
* @see parent::validate_raw_record()
*/
protected function validate_raw_record(stdClass $record) {
if ($record->weight != 0) {
throw new coding_exception('Invalid weight of example submission assessment');
}
parent::validate_raw_record($record);
}
}
/**
* Represents a renderable reference assessment of an example submission
*/
class workshop_example_reference_assessment extends workshop_assessment implements renderable {
/**
* @see parent::validate_raw_record()
*/
protected function validate_raw_record(stdClass $record) {
if ($record->weight != 1) {
throw new coding_exception('Invalid weight of the reference example submission assessment');
}
parent::validate_raw_record($record);
}
}
/**
* Renderable message to be displayed to the user
*
* Message can contain an optional action link with a label that is supposed to be rendered
* as a button or a link.
*
* @see workshop::renderer::render_workshop_message()
*/
class workshop_message implements renderable {
const TYPE_INFO = 10;
const TYPE_OK = 20;
const TYPE_ERROR = 30;
/** @var string */
protected $text = '';
/** @var int */
protected $type = self::TYPE_INFO;
/** @var moodle_url */
protected $actionurl = null;
/** @var string */
protected $actionlabel = '';
/**
* @param string $text short text to be displayed
* @param string $type optional message type info|ok|error
*/
public function __construct($text = null, $type = self::TYPE_INFO) {
$this->set_text($text);
$this->set_type($type);
}
/**
* Sets the message text
*
* @param string $text short text to be displayed
*/
public function set_text($text) {
$this->text = $text;
}
/**
* Sets the message type
*
* @param int $type
*/
public function set_type($type = self::TYPE_INFO) {
if (in_array($type, array(self::TYPE_OK, self::TYPE_ERROR, self::TYPE_INFO))) {
$this->type = $type;
} else {
throw new coding_exception('Unknown message type.');
}
}
/**
* Sets the optional message action
*
* @param moodle_url $url to follow on action
* @param string $label action label
*/
public function set_action(moodle_url $url, $label) {
$this->actionurl = $url;
$this->actionlabel = $label;
}
/**
* Returns message text with HTML tags quoted
*
* @return string
*/
public function get_message() {
return s($this->text);
}
/**
* Returns message type
*
* @return int
*/
public function get_type() {
return $this->type;
}
/**
* Returns action URL
*
* @return moodle_url|null
*/
public function get_action_url() {
return $this->actionurl;
}
/**
* Returns action label
*
* @return string
*/
public function get_action_label() {
return $this->actionlabel;
}
}
/**
* Renderable component containing all the data needed to display the grading report
*/
class workshop_grading_report implements renderable {
/** @var stdClass returned by {@see workshop::prepare_grading_report_data()} */
protected $data;
/** @var stdClass rendering options */
protected $options;
/**
* Grades in $data must be already rounded to the set number of decimals or must be null
* (in which later case, the [mod_workshop,nullgrade] string shall be displayed)
*
* @param stdClass $data prepared by {@link workshop::prepare_grading_report_data()}
* @param stdClass $options display options (showauthornames, showreviewernames, sortby, sorthow, showsubmissiongrade, showgradinggrade)
*/
public function __construct(stdClass $data, stdClass $options) {
$this->data = $data;
$this->options = $options;
}
/**
* @return stdClass grading report data
*/
public function get_data() {
return $this->data;
}
/**
* @return stdClass rendering options
*/
public function get_options() {
return $this->options;
}
/**
* Prepare the data to be exported to a external system via Web Services.
*
* This function applies extra capabilities checks.
* @return stdClass the data ready for external systems
*/
public function export_data_for_external() {
$data = $this->get_data();
$options = $this->get_options();
foreach ($data->grades as $reportdata) {
// If we are in submission phase ignore the following data.
if ($options->workshopphase == workshop::PHASE_SUBMISSION) {
unset($reportdata->submissiongrade);
unset($reportdata->gradinggrade);
unset($reportdata->submissiongradeover);
unset($reportdata->submissiongradeoverby);
unset($reportdata->submissionpublished);
unset($reportdata->reviewedby);
unset($reportdata->reviewerof);
continue;
}
if (!$options->showsubmissiongrade) {
unset($reportdata->submissiongrade);
unset($reportdata->submissiongradeover);
}
if (!$options->showgradinggrade and $tr == 0) {
unset($reportdata->gradinggrade);
}
if (!$options->showreviewernames) {
foreach ($reportdata->reviewedby as $reviewedby) {
$reviewedby->userid = 0;
}
}
if (!$options->showauthornames) {
foreach ($reportdata->reviewerof as $reviewerof) {
$reviewerof->userid = 0;
}
}
}
return $data;
}
}
/**
* Base class for renderable feedback for author and feedback for reviewer
*/
abstract class workshop_feedback {
/** @var stdClass the user info */
protected $provider = null;
/** @var string the feedback text */
protected $content = null;
/** @var int format of the feedback text */
protected $format = null;
/**
* @return stdClass the user info
*/
public function get_provider() {
if (is_null($this->provider)) {
throw new coding_exception('Feedback provider not set');
}
return $this->provider;
}
/**
* @return string the feedback text
*/
public function get_content() {
if (is_null($this->content)) {
throw new coding_exception('Feedback content not set');
}
return $this->content;
}
/**
* @return int format of the feedback text
*/
public function get_format() {
if (is_null($this->format)) {
throw new coding_exception('Feedback text format not set');
}
return $this->format;
}
}
/**
* Renderable feedback for the author of submission
*/
class workshop_feedback_author extends workshop_feedback implements renderable {
/**
* Extracts feedback from the given submission record
*
* @param stdClass $submission record as returned by {@see self::get_submission_by_id()}
*/
public function __construct(stdClass $submission) {
$this->provider = user_picture::unalias($submission, null, 'gradeoverbyx', 'gradeoverby');
$this->content = $submission->feedbackauthor;
$this->format = $submission->feedbackauthorformat;
}
}
/**
* Renderable feedback for the reviewer
*/
class workshop_feedback_reviewer extends workshop_feedback implements renderable {
/**
* Extracts feedback from the given assessment record
*
* @param stdClass $assessment record as returned by eg {@see self::get_assessment_by_id()}
*/
public function __construct(stdClass $assessment) {
$this->provider = user_picture::unalias($assessment, null, 'gradinggradeoverbyx', 'overby');
$this->content = $assessment->feedbackreviewer;
$this->format = $assessment->feedbackreviewerformat;
}
}
/**
* Holds the final grades for the activity as are stored in the gradebook
*/
class workshop_final_grades implements renderable {
/** @var object the info from the gradebook about the grade for submission */
public $submissiongrade = null;
/** @var object the infor from the gradebook about the grade for assessment */
public $assessmentgrade = null;
}