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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/>.
/**
* Privacy class for requesting user data.
*
* @package mod_assign
* @copyright 2018 Adrian Greeve <adrian@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_assign\privacy;
defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot . '/mod/assign/locallib.php');
use \core_privacy\local\metadata\collection;
use \core_privacy\local\request\contextlist;
use \core_privacy\local\request\writer;
use \core_privacy\local\request\approved_contextlist;
use \core_privacy\local\request\transform;
use \core_privacy\local\request\helper;
use \core_privacy\local\request\userlist;
use \core_privacy\local\request\approved_userlist;
use \core_privacy\manager;
/**
* Privacy class for requesting user data.
*
* @package mod_assign
* @copyright 2018 Adrian Greeve <adrian@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class provider implements
\core_privacy\local\metadata\provider,
\core_privacy\local\request\plugin\provider,
\core_privacy\local\request\user_preference_provider,
\core_privacy\local\request\core_userlist_provider {
/** Interface for all assign submission sub-plugins. */
const ASSIGNSUBMISSION_INTERFACE = 'mod_assign\privacy\assignsubmission_provider';
/** Interface for all assign submission sub-plugins. This allows for deletion of users with a context. */
const ASSIGNSUBMISSION_USER_INTERFACE = 'mod_assign\privacy\assignsubmission_user_provider';
/** Interface for all assign feedback sub-plugins. This allows for deletion of users with a context. */
const ASSIGNFEEDBACK_USER_INTERFACE = 'mod_assign\privacy\assignfeedback_user_provider';
/** Interface for all assign feedback sub-plugins. */
const ASSIGNFEEDBACK_INTERFACE = 'mod_assign\privacy\assignfeedback_provider';
/**
* Provides meta data that is stored about a user with mod_assign
*
* @param collection $collection A collection of meta data items to be added to.
* @return collection Returns the collection of metadata.
*/
public static function get_metadata(collection $collection) : collection {
$assigngrades = [
'userid' => 'privacy:metadata:userid',
'timecreated' => 'privacy:metadata:timecreated',
'timemodified' => 'timemodified',
'grader' => 'privacy:metadata:grader',
'grade' => 'privacy:metadata:grade',
'attemptnumber' => 'attemptnumber'
];
$assignoverrides = [
'groupid' => 'privacy:metadata:groupid',
'userid' => 'privacy:metadata:userid',
'allowsubmissionsfromdate' => 'allowsubmissionsfromdate',
'duedate' => 'duedate',
'cutoffdate' => 'cutoffdate'
];
$assignsubmission = [
'userid' => 'privacy:metadata:userid',
'timecreated' => 'privacy:metadata:timecreated',
'timemodified' => 'timemodified',
'status' => 'gradingstatus',
'groupid' => 'privacy:metadata:groupid',
'attemptnumber' => 'attemptnumber',
'latest' => 'privacy:metadata:latest'
];
$assignuserflags = [
'userid' => 'privacy:metadata:userid',
'assignment' => 'privacy:metadata:assignmentid',
'locked' => 'locksubmissions',
'mailed' => 'privacy:metadata:mailed',
'extensionduedate' => 'extensionduedate',
'workflowstate' => 'markingworkflowstate',
'allocatedmarker' => 'allocatedmarker'
];
$assignusermapping = [
'assignment' => 'privacy:metadata:assignmentid',
'userid' => 'privacy:metadata:userid'
];
$collection->add_database_table('assign_grades', $assigngrades, 'privacy:metadata:assigngrades');
$collection->add_database_table('assign_overrides', $assignoverrides, 'privacy:metadata:assignoverrides');
$collection->add_database_table('assign_submission', $assignsubmission, 'privacy:metadata:assignsubmissiondetail');
$collection->add_database_table('assign_user_flags', $assignuserflags, 'privacy:metadata:assignuserflags');
$collection->add_database_table('assign_user_mapping', $assignusermapping, 'privacy:metadata:assignusermapping');
$collection->add_user_preference('assign_perpage', 'privacy:metadata:assignperpage');
$collection->add_user_preference('assign_filter', 'privacy:metadata:assignfilter');
$collection->add_user_preference('assign_markerfilter', 'privacy:metadata:assignmarkerfilter');
$collection->add_user_preference('assign_workflowfilter', 'privacy:metadata:assignworkflowfilter');
$collection->add_user_preference('assign_quickgrading', 'privacy:metadata:assignquickgrading');
$collection->add_user_preference('assign_downloadasfolders', 'privacy:metadata:assigndownloadasfolders');
// Link to subplugins.
$collection->add_plugintype_link('assignsubmission', [],'privacy:metadata:assignsubmissionpluginsummary');
$collection->add_plugintype_link('assignfeedback', [], 'privacy:metadata:assignfeedbackpluginsummary');
$collection->add_subsystem_link('core_message', [], 'privacy:metadata:assignmessageexplanation');
return $collection;
}
/**
* Returns all of the contexts that has information relating to the userid.
*
* @param int $userid The user ID.
* @return contextlist an object with the contexts related to a userid.
*/
public static function get_contexts_for_userid(int $userid) : contextlist {
$params = ['modulename' => 'assign',
'contextlevel' => CONTEXT_MODULE,
'userid' => $userid,
'graderid' => $userid,
'aouserid' => $userid,
'asnuserid' => $userid,
'aufuserid' => $userid,
'aumuserid' => $userid];
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_grades} ag ON a.id = ag.assignment AND (ag.userid = :userid OR ag.grader = :graderid)";
$contextlist = new contextlist();
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_overrides} ao ON a.id = ao.assignid
WHERE ao.userid = :aouserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_submission} asn ON a.id = asn.assignment
WHERE asn.userid = :asnuserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_user_flags} auf ON a.id = auf.assignment
WHERE auf.userid = :aufuserid";
$contextlist->add_from_sql($sql, $params);
$sql = "SELECT ctx.id
FROM {course_modules} cm
JOIN {modules} m ON cm.module = m.id AND m.name = :modulename
JOIN {assign} a ON cm.instance = a.id
JOIN {context} ctx ON cm.id = ctx.instanceid AND ctx.contextlevel = :contextlevel
JOIN {assign_user_mapping} aum ON a.id = aum.assignment
WHERE aum.userid = :aumuserid";
$contextlist->add_from_sql($sql, $params);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE,
'get_context_for_userid_within_feedback', [$userid, $contextlist]);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE,
'get_context_for_userid_within_submission', [$userid, $contextlist]);
return $contextlist;
}
/**
* Get the list of users who have data within a context.
*
* @param userlist $userlist The userlist containing the list of users who have data in this context/plugin combination.
*/
public static function get_users_in_context(userlist $userlist) {
$context = $userlist->get_context();
if ($context->contextlevel != CONTEXT_MODULE) {
return;
}
$params = [
'modulename' => 'assign',
'contextid' => $context->id,
'contextlevel' => CONTEXT_MODULE
];
$sql = "SELECT g.userid, g.grader
FROM {context} ctx
JOIN {course_modules} cm ON cm.id = ctx.instanceid
JOIN {modules} m ON m.id = cm.module AND m.name = :modulename
JOIN {assign} a ON a.id = cm.instance
JOIN {assign_grades} g ON a.id = g.assignment
WHERE ctx.id = :contextid AND ctx.contextlevel = :contextlevel";
$userlist->add_from_sql('userid', $sql, $params);
$userlist->add_from_sql('grader', $sql, $params);
$sql = "SELECT o.userid
FROM {context} ctx
JOIN {course_modules} cm ON cm.id = ctx.instanceid
JOIN {modules} m ON m.id = cm.module AND m.name = :modulename
JOIN {assign} a ON a.id = cm.instance
JOIN {assign_overrides} o ON a.id = o.assignid
WHERE ctx.id = :contextid AND ctx.contextlevel = :contextlevel";
$userlist->add_from_sql('userid', $sql, $params);
$sql = "SELECT s.userid
FROM {context} ctx
JOIN {course_modules} cm ON cm.id = ctx.instanceid
JOIN {modules} m ON m.id = cm.module AND m.name = :modulename
JOIN {assign} a ON a.id = cm.instance
JOIN {assign_submission} s ON a.id = s.assignment
WHERE ctx.id = :contextid AND ctx.contextlevel = :contextlevel";
$userlist->add_from_sql('userid', $sql, $params);
$sql = "SELECT uf.userid
FROM {context} ctx
JOIN {course_modules} cm ON cm.id = ctx.instanceid
JOIN {modules} m ON m.id = cm.module AND m.name = :modulename
JOIN {assign} a ON a.id = cm.instance
JOIN {assign_user_flags} uf ON a.id = uf.assignment
WHERE ctx.id = :contextid AND ctx.contextlevel = :contextlevel";
$userlist->add_from_sql('userid', $sql, $params);
$sql = "SELECT um.userid
FROM {context} ctx
JOIN {course_modules} cm ON cm.id = ctx.instanceid
JOIN {modules} m ON m.id = cm.module AND m.name = :modulename
JOIN {assign} a ON a.id = cm.instance
JOIN {assign_user_mapping} um ON a.id = um.assignment
WHERE ctx.id = :contextid AND ctx.contextlevel = :contextlevel";
$userlist->add_from_sql('userid', $sql, $params);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_USER_INTERFACE,
'get_userids_from_context', [$userlist]);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_USER_INTERFACE,
'get_userids_from_context', [$userlist]);
}
/**
* Write out the user data filtered by contexts.
*
* @param approved_contextlist $contextlist contexts that we are writing data out from.
*/
public static function export_user_data(approved_contextlist $contextlist) {
foreach ($contextlist->get_contexts() as $context) {
// Check that the context is a module context.
if ($context->contextlevel != CONTEXT_MODULE) {
continue;
}
$user = $contextlist->get_user();
$assigndata = helper::get_context_data($context, $user);
helper::export_context_files($context, $user);
writer::with_context($context)->export_data([], $assigndata);
$assign = new \assign($context, null, null);
// I need to find out if I'm a student or a teacher.
if ($userids = self::get_graded_users($user->id, $assign)) {
// Return teacher info.
$currentpath = [get_string('privacy:studentpath', 'mod_assign')];
foreach ($userids as $studentuserid) {
$studentpath = array_merge($currentpath, [$studentuserid->id]);
static::export_submission($assign, $studentuserid, $context, $studentpath, true);
}
}
static::export_overrides($context, $assign, $user);
static::export_submission($assign, $user, $context, []);
// Meta data.
self::store_assign_user_flags($context, $assign, $user->id);
if ($assign->is_blind_marking()) {
$uniqueid = $assign->get_uniqueid_for_user_static($assign->get_instance()->id, $contextlist->get_user()->id);
if ($uniqueid) {
writer::with_context($context)
->export_metadata([get_string('blindmarking', 'mod_assign')], 'blindmarkingid', $uniqueid,
get_string('privacy:blindmarkingidentifier', 'mod_assign'));
}
}
}
}
/**
* Delete all use data which matches the specified context.
*
* @param \context $context The module context.
*/
public static function delete_data_for_all_users_in_context(\context $context) {
global $DB;
if ($context->contextlevel == CONTEXT_MODULE) {
$cm = get_coursemodule_from_id('assign', $context->instanceid);
if ($cm) {
// Get the assignment related to this context.
$assign = new \assign($context, null, null);
// What to do first... Get sub plugins to delete their stuff.
$requestdata = new assign_plugin_request_data($context, $assign);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE,
'delete_submission_for_context', [$requestdata]);
$requestdata = new assign_plugin_request_data($context, $assign);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE,
'delete_feedback_for_context', [$requestdata]);
$DB->delete_records('assign_grades', ['assignment' => $assign->get_instance()->id]);
// Delete advanced grading information.
$gradingmanager = get_grading_manager($context, 'mod_assign', 'submissions');
$controller = $gradingmanager->get_active_controller();
if (isset($controller)) {
\core_grading\privacy\provider::delete_instance_data($context);
}
// Time to roll my own method for deleting overrides.
static::delete_overrides_for_users($assign);
$DB->delete_records('assign_submission', ['assignment' => $assign->get_instance()->id]);
$DB->delete_records('assign_user_flags', ['assignment' => $assign->get_instance()->id]);
$DB->delete_records('assign_user_mapping', ['assignment' => $assign->get_instance()->id]);
}
}
}
/**
* Delete all user data for the specified user, in the specified contexts.
*
* @param approved_contextlist $contextlist The approved contexts and user information to delete information for.
*/
public static function delete_data_for_user(approved_contextlist $contextlist) {
global $DB;
$user = $contextlist->get_user();
foreach ($contextlist as $context) {
if ($context->contextlevel != CONTEXT_MODULE) {
continue;
}
// Get the assign object.
$assign = new \assign($context, null, null);
$assignid = $assign->get_instance()->id;
$submissions = $DB->get_records('assign_submission', ['assignment' => $assignid, 'userid' => $user->id]);
foreach ($submissions as $submission) {
$requestdata = new assign_plugin_request_data($context, $assign, $submission, [], $user);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE,
'delete_submission_for_userid', [$requestdata]);
}
$grades = $DB->get_records('assign_grades', ['assignment' => $assignid, 'userid' => $user->id]);
$gradingmanager = get_grading_manager($context, 'mod_assign', 'submissions');
$controller = $gradingmanager->get_active_controller();
foreach ($grades as $grade) {
$requestdata = new assign_plugin_request_data($context, $assign, $grade, [], $user);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE,
'delete_feedback_for_grade', [$requestdata]);
// Delete advanced grading information.
if (isset($controller)) {
\core_grading\privacy\provider::delete_instance_data($context, $grade->id);
}
}
static::delete_overrides_for_users($assign, [$user->id]);
$DB->delete_records('assign_user_flags', ['assignment' => $assignid, 'userid' => $user->id]);
$DB->delete_records('assign_user_mapping', ['assignment' => $assignid, 'userid' => $user->id]);
$DB->delete_records('assign_grades', ['assignment' => $assignid, 'userid' => $user->id]);
$DB->delete_records('assign_submission', ['assignment' => $assignid, 'userid' => $user->id]);
}
}
/**
* Delete multiple users within a single context.
*
* @param approved_userlist $userlist The approved context and user information to delete information for.
*/
public static function delete_data_for_users(approved_userlist $userlist) {
global $DB;
$context = $userlist->get_context();
if ($context->contextlevel != CONTEXT_MODULE) {
return;
}
$userids = $userlist->get_userids();
$assign = new \assign($context, null, null);
$assignid = $assign->get_instance()->id;
$requestdata = new assign_plugin_request_data($context, $assign);
$requestdata->set_userids($userids);
$requestdata->populate_submissions_and_grades();
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_USER_INTERFACE, 'delete_submissions',
[$requestdata]);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_USER_INTERFACE, 'delete_feedback_for_grades',
[$requestdata]);
// Update this function to delete advanced grading information.
$gradingmanager = get_grading_manager($context, 'mod_assign', 'submissions');
$controller = $gradingmanager->get_active_controller();
if (isset($controller)) {
$gradeids = $requestdata->get_gradeids();
// Careful here, if no gradeids are provided then all data is deleted for the context.
if (!empty($gradeids)) {
\core_grading\privacy\provider::delete_data_for_instances($context, $gradeids);
}
}
static::delete_overrides_for_users($assign, $userids);
list($sql, $params) = $DB->get_in_or_equal($userids, SQL_PARAMS_NAMED);
$params['assignment'] = $assignid;
$DB->delete_records_select('assign_user_flags', "assignment = :assignment AND userid $sql", $params);
$DB->delete_records_select('assign_user_mapping', "assignment = :assignment AND userid $sql", $params);
$DB->delete_records_select('assign_grades', "assignment = :assignment AND userid $sql", $params);
$DB->delete_records_select('assign_submission', "assignment = :assignment AND userid $sql", $params);
}
/**
* Deletes assignment overrides in bulk
*
* @param \assign $assign The assignment object
* @param array $userids An array of user IDs
*/
protected static function delete_overrides_for_users(\assign $assign, array $userids = []) {
global $DB;
$assignid = $assign->get_instance()->id;
$usersql = '';
$params = ['assignid' => $assignid];
if (!empty($userids)) {
list($usersql, $userparams) = $DB->get_in_or_equal($userids, SQL_PARAMS_NAMED);
$params = array_merge($params, $userparams);
$overrides = $DB->get_records_select('assign_overrides', "assignid = :assignid AND userid $usersql", $params);
} else {
$overrides = $DB->get_records('assign_overrides', $params);
}
if (!empty($overrides)) {
$params = ['modulename' => 'assign', 'instance' => $assignid];
if (!empty($userids)) {
$params = array_merge($params, $userparams);
$DB->delete_records_select('event', "modulename = :modulename AND instance = :instance AND userid $usersql",
$params);
// Setting up for the next query.
$params = $userparams;
$usersql = "AND userid $usersql";
} else {
$DB->delete_records('event', $params);
// Setting up for the next query.
$params = [];
}
list($overridesql, $overrideparams) = $DB->get_in_or_equal(array_keys($overrides), SQL_PARAMS_NAMED);
$params = array_merge($params, $overrideparams);
$DB->delete_records_select('assign_overrides', "id $overridesql $usersql", $params);
}
}
/**
* Find out if this user has graded any users.
*
* @param int $userid The user ID (potential teacher).
* @param assign $assign The assignment object.
* @return array If successful an array of objects with userids that this user graded, otherwise false.
*/
protected static function get_graded_users(int $userid, \assign $assign) {
$params = ['grader' => $userid, 'assignid' => $assign->get_instance()->id];
$sql = "SELECT DISTINCT userid AS id
FROM {assign_grades}
WHERE grader = :grader AND assignment = :assignid";
$useridlist = new useridlist($userid, $assign->get_instance()->id);
$useridlist->add_from_sql($sql, $params);
// Call sub-plugins to see if they have information not already collected.
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE, 'get_student_user_ids',
[$useridlist]);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE, 'get_student_user_ids', [$useridlist]);
$userids = $useridlist->get_userids();
return ($userids) ? $userids : false;
}
/**
* Writes out various user meta data about the assignment.
*
* @param \context $context The context of this assignment.
* @param \assign $assign The assignment object.
* @param int $userid The user ID
*/
protected static function store_assign_user_flags(\context $context, \assign $assign, int $userid) {
$datatypes = ['locked' => get_string('locksubmissions', 'mod_assign'),
'mailed' => get_string('privacy:metadata:mailed', 'mod_assign'),
'extensionduedate' => get_string('extensionduedate', 'mod_assign'),
'workflowstate' => get_string('markingworkflowstate', 'mod_assign'),
'allocatedmarker' => get_string('allocatedmarker_help', 'mod_assign')];
$userflags = (array)$assign->get_user_flags($userid, false);
foreach ($datatypes as $key => $description) {
if (isset($userflags[$key]) && !empty($userflags[$key])) {
$value = $userflags[$key];
if ($key == 'locked' || $key == 'mailed') {
$value = transform::yesno($value);
} else if ($key == 'extensionduedate') {
$value = transform::datetime($value);
}
writer::with_context($context)->export_metadata([], $key, $value, $description);
}
}
}
/**
* Formats and then exports the user's grade data.
*
* @param \stdClass $grade The assign grade object
* @param \context $context The context object
* @param array $currentpath Current directory path that we are exporting to.
*/
protected static function export_grade_data(\stdClass $grade, \context $context, array $currentpath) {
$gradedata = (object)[
'timecreated' => transform::datetime($grade->timecreated),
'timemodified' => transform::datetime($grade->timemodified),
'grader' => transform::user($grade->grader),
'grade' => $grade->grade,
'attemptnumber' => ($grade->attemptnumber + 1)
];
writer::with_context($context)
->export_data(array_merge($currentpath, [get_string('privacy:gradepath', 'mod_assign')]), $gradedata);
}
/**
* Formats and then exports the user's submission data.
*
* @param \stdClass $submission The assign submission object
* @param \context $context The context object
* @param array $currentpath Current directory path that we are exporting to.
*/
protected static function export_submission_data(\stdClass $submission, \context $context, array $currentpath) {
$submissiondata = (object)[
'timecreated' => transform::datetime($submission->timecreated),
'timemodified' => transform::datetime($submission->timemodified),
'status' => get_string('submissionstatus_' . $submission->status, 'mod_assign'),
'groupid' => $submission->groupid,
'attemptnumber' => ($submission->attemptnumber + 1),
'latest' => transform::yesno($submission->latest)
];
writer::with_context($context)
->export_data(array_merge($currentpath, [get_string('privacy:submissionpath', 'mod_assign')]), $submissiondata);
}
/**
* Stores the user preferences related to mod_assign.
*
* @param int $userid The user ID that we want the preferences for.
*/
public static function export_user_preferences(int $userid) {
$context = \context_system::instance();
$assignpreferences = [
'assign_perpage' => ['string' => get_string('privacy:metadata:assignperpage', 'mod_assign'), 'bool' => false],
'assign_filter' => ['string' => get_string('privacy:metadata:assignfilter', 'mod_assign'), 'bool' => false],
'assign_markerfilter' => ['string' => get_string('privacy:metadata:assignmarkerfilter', 'mod_assign'), 'bool' => true],
'assign_workflowfilter' => ['string' => get_string('privacy:metadata:assignworkflowfilter', 'mod_assign'),
'bool' => true],
'assign_quickgrading' => ['string' => get_string('privacy:metadata:assignquickgrading', 'mod_assign'), 'bool' => true],
'assign_downloadasfolders' => ['string' => get_string('privacy:metadata:assigndownloadasfolders', 'mod_assign'),
'bool' => true]
];
foreach ($assignpreferences as $key => $preference) {
$value = get_user_preferences($key, null, $userid);
if ($preference['bool']) {
$value = transform::yesno($value);
}
if (isset($value)) {
writer::with_context($context)->export_user_preference('mod_assign', $key, $value, $preference['string']);
}
}
}
/**
* Export overrides for this assignment.
*
* @param \context $context Context
* @param \assign $assign The assign object.
* @param \stdClass $user The user object.
*/
public static function export_overrides(\context $context, \assign $assign, \stdClass $user) {
$overrides = $assign->override_exists($user->id);
// Overrides returns an array with data in it, but an override with actual data will have the assign ID set.
if (isset($overrides->assignid)) {
$data = new \stdClass();
if (!empty($overrides->duedate)) {
$data->duedate = transform::datetime($overrides->duedate);
}
if (!empty($overrides->cutoffdate)) {
$data->cutoffdate = transform::datetime($overrides->cutoffdate);
}
if (!empty($overrides->allowsubmissionsfromdate)) {
$data->allowsubmissionsfromdate = transform::datetime($overrides->allowsubmissionsfromdate);
}
if (!empty($data)) {
writer::with_context($context)->export_data([get_string('overrides', 'mod_assign')], $data);
}
}
}
/**
* Exports assignment submission data for a user.
*
* @param \assign $assign The assignment object
* @param \stdClass $user The user object
* @param \context_module $context The context
* @param array $path The path for exporting data
* @param bool|boolean $exportforteacher A flag for if this is exporting data as a teacher.
*/
protected static function export_submission(\assign $assign, \stdClass $user, \context_module $context, array $path,
bool $exportforteacher = false) {
$submissions = $assign->get_all_submissions($user->id);
$teacher = ($exportforteacher) ? $user : null;
$gradingmanager = get_grading_manager($context, 'mod_assign', 'submissions');
$controller = $gradingmanager->get_active_controller();
foreach ($submissions as $submission) {
// Attempt numbers start at zero, which is fine for programming, but doesn't make as much sense
// for users.
$submissionpath = array_merge($path,
[get_string('privacy:attemptpath', 'mod_assign', ($submission->attemptnumber + 1))]);
$params = new assign_plugin_request_data($context, $assign, $submission, $submissionpath ,$teacher);
manager::plugintype_class_callback('assignsubmission', self::ASSIGNSUBMISSION_INTERFACE,
'export_submission_user_data', [$params]);
if (!isset($teacher)) {
self::export_submission_data($submission, $context, $submissionpath);
}
$grade = $assign->get_user_grade($user->id, false, $submission->attemptnumber);
if ($grade) {
$params = new assign_plugin_request_data($context, $assign, $grade, $submissionpath, $teacher);
manager::plugintype_class_callback('assignfeedback', self::ASSIGNFEEDBACK_INTERFACE, 'export_feedback_user_data',
[$params]);
self::export_grade_data($grade, $context, $submissionpath);
// Check for advanced grading and retrieve that information.
if (isset($controller)) {
\core_grading\privacy\provider::export_item_data($context, $grade->id, $submissionpath);
}
}
}
}
}