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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/>.
/**
* @package mod_survey
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Graph size
* @global int $SURVEY_GHEIGHT
*/
global $SURVEY_GHEIGHT;
$SURVEY_GHEIGHT = 500;
/**
* Graph size
* @global int $SURVEY_GWIDTH
*/
global $SURVEY_GWIDTH;
$SURVEY_GWIDTH = 900;
/**
* Question Type
* @global array $SURVEY_QTYPE
*/
global $SURVEY_QTYPE;
$SURVEY_QTYPE = array (
"-3" => "Virtual Actual and Preferred",
"-2" => "Virtual Preferred",
"-1" => "Virtual Actual",
"0" => "Text",
"1" => "Actual",
"2" => "Preferred",
"3" => "Actual and Preferred",
);
define("SURVEY_COLLES_ACTUAL", "1");
define("SURVEY_COLLES_PREFERRED", "2");
define("SURVEY_COLLES_PREFERRED_ACTUAL", "3");
define("SURVEY_ATTLS", "4");
define("SURVEY_CIQ", "5");
// STANDARD FUNCTIONS ////////////////////////////////////////////////////////
/**
* Given an object containing all the necessary data,
* (defined by the form in mod_form.php) this function
* will create a new instance and return the id number
* of the new instance.
*
* @global object
* @param object $survey
* @return int|bool
*/
function survey_add_instance($survey) {
global $DB;
if (!$template = $DB->get_record("survey", array("id"=>$survey->template))) {
return 0;
}
$survey->questions = $template->questions;
$survey->timecreated = time();
$survey->timemodified = $survey->timecreated;
$id = $DB->insert_record("survey", $survey);
$completiontimeexpected = !empty($survey->completionexpected) ? $survey->completionexpected : null;
\core_completion\api::update_completion_date_event($survey->coursemodule, 'survey', $id, $completiontimeexpected);
return $id;
}
/**
* Given an object containing all the necessary data,
* (defined by the form in mod_form.php) this function
* will update an existing instance with new data.
*
* @global object
* @param object $survey
* @return bool
*/
function survey_update_instance($survey) {
global $DB;
if (!$template = $DB->get_record("survey", array("id"=>$survey->template))) {
return 0;
}
$survey->id = $survey->instance;
$survey->questions = $template->questions;
$survey->timemodified = time();
$completiontimeexpected = !empty($survey->completionexpected) ? $survey->completionexpected : null;
\core_completion\api::update_completion_date_event($survey->coursemodule, 'survey', $survey->id, $completiontimeexpected);
return $DB->update_record("survey", $survey);
}
/**
* Given an ID of an instance of this module,
* this function will permanently delete the instance
* and any data that depends on it.
*
* @global object
* @param int $id
* @return bool
*/
function survey_delete_instance($id) {
global $DB;
if (! $survey = $DB->get_record("survey", array("id"=>$id))) {
return false;
}
$cm = get_coursemodule_from_instance('survey', $id);
\core_completion\api::update_completion_date_event($cm->id, 'survey', $id, null);
$result = true;
if (! $DB->delete_records("survey_analysis", array("survey"=>$survey->id))) {
$result = false;
}
if (! $DB->delete_records("survey_answers", array("survey"=>$survey->id))) {
$result = false;
}
if (! $DB->delete_records("survey", array("id"=>$survey->id))) {
$result = false;
}
return $result;
}
/**
* @global object
* @param object $course
* @param object $user
* @param object $mod
* @param object $survey
* @return $result
*/
function survey_user_outline($course, $user, $mod, $survey) {
global $DB;
if ($answers = $DB->get_records("survey_answers", array('survey'=>$survey->id, 'userid'=>$user->id))) {
$lastanswer = array_pop($answers);
$result = new stdClass();
$result->info = get_string("done", "survey");
$result->time = $lastanswer->time;
return $result;
}
return NULL;
}
/**
* @global stdObject
* @global object
* @uses SURVEY_CIQ
* @param object $course
* @param object $user
* @param object $mod
* @param object $survey
*/
function survey_user_complete($course, $user, $mod, $survey) {
global $CFG, $DB, $OUTPUT;
if (survey_already_done($survey->id, $user->id)) {
if ($survey->template == SURVEY_CIQ) { // print out answers for critical incidents
$table = new html_table();
$table->align = array("left", "left");
$questions = $DB->get_records_list("survey_questions", "id", explode(',', $survey->questions));
$questionorder = explode(",", $survey->questions);
foreach ($questionorder as $key=>$val) {
$question = $questions[$val];
$questiontext = get_string($question->shorttext, "survey");
if ($answer = survey_get_user_answer($survey->id, $question->id, $user->id)) {
$answertext = "$answer->answer1";
} else {
$answertext = "No answer";
}
$table->data[] = array("<b>$questiontext</b>", s($answertext));
}
echo html_writer::table($table);
} else {
survey_print_graph("id=$mod->id&sid=$user->id&type=student.png");
}
} else {
print_string("notdone", "survey");
}
}
/**
* @global stdClass
* @global object
* @param object $course
* @param mixed $viewfullnames
* @param int $timestamp
* @return bool
*/
function survey_print_recent_activity($course, $viewfullnames, $timestart) {
global $CFG, $DB, $OUTPUT;
$modinfo = get_fast_modinfo($course);
$ids = array();
foreach ($modinfo->cms as $cm) {
if ($cm->modname != 'survey') {
continue;
}
if (!$cm->uservisible) {
continue;
}
$ids[$cm->instance] = $cm->instance;
}
if (!$ids) {
return false;
}
$slist = implode(',', $ids); // there should not be hundreds of glossaries in one course, right?
$allusernames = user_picture::fields('u');
$rs = $DB->get_recordset_sql("SELECT sa.userid, sa.survey, MAX(sa.time) AS time,
$allusernames
FROM {survey_answers} sa
JOIN {user} u ON u.id = sa.userid
WHERE sa.survey IN ($slist) AND sa.time > ?
GROUP BY sa.userid, sa.survey, $allusernames
ORDER BY time ASC", array($timestart));
if (!$rs->valid()) {
$rs->close(); // Not going to iterate (but exit), close rs
return false;
}
$surveys = array();
foreach ($rs as $survey) {
$cm = $modinfo->instances['survey'][$survey->survey];
$survey->name = $cm->name;
$survey->cmid = $cm->id;
$surveys[] = $survey;
}
$rs->close();
if (!$surveys) {
return false;
}
echo $OUTPUT->heading(get_string('newsurveyresponses', 'survey') . ':', 6);
foreach ($surveys as $survey) {
$url = $CFG->wwwroot.'/mod/survey/view.php?id='.$survey->cmid;
print_recent_activity_note($survey->time, $survey, $survey->name, $url, false, $viewfullnames);
}
return true;
}
// SQL FUNCTIONS ////////////////////////////////////////////////////////
/**
* @global object
* @param sting $log
* @return array
*/
function survey_log_info($log) {
global $DB;
return $DB->get_record_sql("SELECT s.name, u.firstname, u.lastname, u.picture
FROM {survey} s, {user} u
WHERE s.id = ? AND u.id = ?", array($log->info, $log->userid));
}
/**
* @global object
* @param int $surveyid
* @param int $groupid
* @param int $groupingid
* @return array
*/
function survey_get_responses($surveyid, $groupid, $groupingid) {
global $DB;
$params = array('surveyid'=>$surveyid, 'groupid'=>$groupid, 'groupingid'=>$groupingid);
if ($groupid) {
$groupsjoin = "JOIN {groups_members} gm ON u.id = gm.userid AND gm.groupid = :groupid ";
} else if ($groupingid) {
$groupsjoin = "JOIN {groups_members} gm ON u.id = gm.userid
JOIN {groupings_groups} gg ON gm.groupid = gg.groupid AND gg.groupingid = :groupingid ";
} else {
$groupsjoin = "";
}
$userfields = user_picture::fields('u');
return $DB->get_records_sql("SELECT $userfields, MAX(a.time) as time
FROM {survey_answers} a
JOIN {user} u ON a.userid = u.id
$groupsjoin
WHERE a.survey = :surveyid
GROUP BY $userfields
ORDER BY time ASC", $params);
}
/**
* @global object
* @param int $survey
* @param int $user
* @return array
*/
function survey_get_analysis($survey, $user) {
global $DB;
return $DB->get_record_sql("SELECT notes
FROM {survey_analysis}
WHERE survey=? AND userid=?", array($survey, $user));
}
/**
* @global object
* @param int $survey
* @param int $user
* @param string $notes
*/
function survey_update_analysis($survey, $user, $notes) {
global $DB;
return $DB->execute("UPDATE {survey_analysis}
SET notes=?
WHERE survey=?
AND userid=?", array($notes, $survey, $user));
}
/**
* @global object
* @param int $surveyid
* @param int $groupid
* @param string $sort
* @return array
*/
function survey_get_user_answers($surveyid, $questionid, $groupid, $sort="sa.answer1,sa.answer2 ASC") {
global $DB;
$params = array('surveyid'=>$surveyid, 'questionid'=>$questionid);
if ($groupid) {
$groupfrom = ', {groups_members} gm';
$groupsql = 'AND gm.groupid = :groupid AND u.id = gm.userid';
$params['groupid'] = $groupid;
} else {
$groupfrom = '';
$groupsql = '';
}
$userfields = user_picture::fields('u');
return $DB->get_records_sql("SELECT sa.*, $userfields
FROM {survey_answers} sa, {user} u $groupfrom
WHERE sa.survey = :surveyid
AND sa.question = :questionid
AND u.id = sa.userid $groupsql
ORDER BY $sort", $params);
}
/**
* @global object
* @param int $surveyid
* @param int $questionid
* @param int $userid
* @return array
*/
function survey_get_user_answer($surveyid, $questionid, $userid) {
global $DB;
return $DB->get_record_sql("SELECT sa.*
FROM {survey_answers} sa
WHERE sa.survey = ?
AND sa.question = ?
AND sa.userid = ?", array($surveyid, $questionid, $userid));
}
// MODULE FUNCTIONS ////////////////////////////////////////////////////////
/**
* @global object
* @param int $survey
* @param int $user
* @param string $notes
* @return bool|int
*/
function survey_add_analysis($survey, $user, $notes) {
global $DB;
$record = new stdClass();
$record->survey = $survey;
$record->userid = $user;
$record->notes = $notes;
return $DB->insert_record("survey_analysis", $record, false);
}
/**
* @global object
* @param int $survey
* @param int $user
* @return bool
*/
function survey_already_done($survey, $user) {
global $DB;
return $DB->record_exists("survey_answers", array("survey"=>$survey, "userid"=>$user));
}
/**
* @param int $surveyid
* @param int $groupid
* @param int $groupingid
* @return int
*/
function survey_count_responses($surveyid, $groupid, $groupingid) {
if ($responses = survey_get_responses($surveyid, $groupid, $groupingid)) {
return count($responses);
} else {
return 0;
}
}
/**
* @param int $cmid
* @param array $results
* @param int $courseid
*/
function survey_print_all_responses($cmid, $results, $courseid) {
global $OUTPUT;
$table = new html_table();
$table->head = array ("", get_string("name"), get_string("time"));
$table->align = array ("", "left", "left");
$table->size = array (35, "", "" );
foreach ($results as $a) {
$table->data[] = array($OUTPUT->user_picture($a, array('courseid'=>$courseid)),
html_writer::link("report.php?action=student&student=$a->id&id=$cmid", fullname($a)),
userdate($a->time));
}
echo html_writer::table($table);
}
/**
* @global object
* @param int $templateid
* @return string
*/
function survey_get_template_name($templateid) {
global $DB;
if ($templateid) {
if ($ss = $DB->get_record("surveys", array("id"=>$templateid))) {
return $ss->name;
}
} else {
return "";
}
}
/**
* @param string $name
* @param array $numwords
* @return string
*/
function survey_shorten_name ($name, $numwords) {
$words = explode(" ", $name);
$output = '';
for ($i=0; $i < $numwords; $i++) {
$output .= $words[$i]." ";
}
return $output;
}
/**
* @todo Check this function
*
* @global object
* @global object
* @global int
* @global void This is never defined
* @global object This is defined twice?
* @param object $question
*/
function survey_print_multi($question) {
global $USER, $DB, $qnum, $DB, $OUTPUT; //TODO: this is sloppy globals abuse
$stripreferthat = get_string("ipreferthat", "survey");
$strifoundthat = get_string("ifoundthat", "survey");
$strdefault = get_string('notyetanswered', 'survey');
$strresponses = get_string('responses', 'survey');
echo $OUTPUT->heading($question->text, 3);
echo "\n<table width=\"90%\" cellpadding=\"4\" cellspacing=\"1\" border=\"0\" class=\"surveytable\">";
$options = explode( ",", $question->options);
$numoptions = count($options);
// COLLES Actual (which is having questions of type 1) and COLLES Preferred (type 2)
// expect just one answer per question. COLLES Actual and Preferred (type 3) expects
// two answers per question. ATTLS (having a single question of type 1) expects one
// answer per question. CIQ is not using multiquestions (i.e. a question with subquestions).
// Note that the type of subquestions does not really matter, it's the type of the
// question itself that determines everything.
$oneanswer = ($question->type == 1 || $question->type == 2) ? true : false;
// COLLES Preferred (having questions of type 2) will use the radio elements with the name
// like qP1, qP2 etc. COLLES Actual and ATTLS have radios like q1, q2 etc.
if ($question->type == 2) {
$P = "P";
} else {
$P = "";
}
echo "<colgroup colspan=\"7\"></colgroup>";
echo "<tr class=\"smalltext\"><th scope=\"row\">$strresponses</th>";
echo "<th scope=\"col\" class=\"hresponse\">". get_string('notyetanswered', 'survey'). "</th>";
foreach ($options as $key => $val) {
echo "<th scope=\"col\" class=\"hresponse\">$val</th>\n";
}
echo "</tr>\n";
echo "<tr><th scope=\"colgroup\" colspan=\"7\">$question->intro</th></tr>\n";
$subquestions = survey_get_subquestions($question);
foreach ($subquestions as $q) {
$qnum++;
if ($oneanswer) {
$rowclass = survey_question_rowclass($qnum);
} else {
$rowclass = survey_question_rowclass(round($qnum / 2));
}
if ($q->text) {
$q->text = get_string($q->text, "survey");
}
echo "<tr class=\"$rowclass rblock\">";
if ($oneanswer) {
echo "<th scope=\"row\" class=\"optioncell\">";
echo "<b class=\"qnumtopcell\">$qnum</b> ";
echo $q->text ."</th>\n";
$default = get_accesshide($strdefault);
echo "<td class=\"whitecell\"><label for=\"q$P$q->id\"><input type=\"radio\" name=\"q$P$q->id\" id=\"q$P" . $q->id . "_D\" value=\"0\" checked=\"checked\" data-survey-default=\"true\" />$default</label></td>";
for ($i=1;$i<=$numoptions;$i++) {
$hiddentext = get_accesshide($options[$i-1]);
$id = "q$P" . $q->id . "_$i";
echo "<td><label for=\"$id\"><input type=\"radio\" name=\"q$P$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
}
} else {
echo "<th scope=\"row\" class=\"optioncell\">";
echo "<b class=\"qnumtopcell\">$qnum</b> ";
$qnum++;
echo "<span class=\"preferthat\">$stripreferthat</span> ";
echo "<span class=\"option\">$q->text</span></th>\n";
$default = get_accesshide($strdefault);
echo '<td class="whitecell"><label for="qP'.$q->id.'"><input type="radio" name="qP'.$q->id.'" id="qP'.$q->id.'" value="0" checked="checked" data-survey-default="true" />'.$default.'</label></td>';
for ($i=1;$i<=$numoptions;$i++) {
$hiddentext = get_accesshide($options[$i-1]);
$id = "qP" . $q->id . "_$i";
echo "<td><label for=\"$id\"><input type=\"radio\" name=\"qP$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
}
echo "</tr>";
echo "<tr class=\"$rowclass rblock\">";
echo "<th scope=\"row\" class=\"optioncell\">";
echo "<b class=\"qnumtopcell\">$qnum</b> ";
echo "<span class=\"foundthat\">$strifoundthat</span> ";
echo "<span class=\"option\">$q->text</span></th>\n";
$default = get_accesshide($strdefault);
echo '<td class="whitecell"><label for="q'. $q->id .'"><input type="radio" name="q'.$q->id. '" id="q'. $q->id .'" value="0" checked="checked" data-survey-default="true" />'.$default.'</label></td>';
for ($i=1;$i<=$numoptions;$i++) {
$hiddentext = get_accesshide($options[$i-1]);
$id = "q" . $q->id . "_$i";
echo "<td><label for=\"$id\"><input type=\"radio\" name=\"q$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
}
}
echo "</tr>\n";
}
echo "</table>";
}
/**
* @global object
* @global int
* @param object $question
*/
function survey_print_single($question) {
global $DB, $qnum, $OUTPUT;
$rowclass = survey_question_rowclass(0);
$qnum++;
echo "<br />\n";
echo "<table width=\"90%\" cellpadding=\"4\" cellspacing=\"0\">\n";
echo "<tr class=\"$rowclass\">";
echo "<th scope=\"row\" class=\"optioncell\"><label for=\"q$question->id\"><b class=\"qnumtopcell\">$qnum</b> ";
echo "<span class=\"questioncell\">$question->text</span></label></th>\n";
echo "<td class=\"questioncell smalltext\">\n";
if ($question->type == 0) { // Plain text field
echo "<textarea rows=\"3\" cols=\"30\" class=\"form-control\" name=\"q$question->id\" id=\"q$question->id\">$question->options</textarea>";
} else if ($question->type > 0) { // Choose one of a number
$strchoose = get_string("choose");
echo "<select name=\"q$question->id\" id=\"q$question->id\" class=\"custom-select\">";
echo "<option value=\"0\" selected=\"selected\">$strchoose...</option>";
$options = explode( ",", $question->options);
foreach ($options as $key => $val) {
$key++;
echo "<option value=\"$key\">$val</option>";
}
echo "</select>";
} else if ($question->type < 0) { // Choose several of a number
$options = explode( ",", $question->options);
echo $OUTPUT->notification("This question type not supported yet");
}
echo "</td></tr></table>";
}
/**
*
* @param int $qnum
* @return string
*/
function survey_question_rowclass($qnum) {
if ($qnum) {
return $qnum % 2 ? 'r0' : 'r1';
} else {
return 'r0';
}
}
/**
* @global object
* @global int
* @global int
* @param string $url
*/
function survey_print_graph($url) {
global $CFG, $SURVEY_GHEIGHT, $SURVEY_GWIDTH;
echo "<img class='resultgraph' height=\"$SURVEY_GHEIGHT\" width=\"$SURVEY_GWIDTH\"".
" src=\"$CFG->wwwroot/mod/survey/graph.php?$url\" alt=\"".get_string("surveygraph", "survey")."\" />";
}
/**
* List the actions that correspond to a view of this module.
* This is used by the participation report.
*
* Note: This is not used by new logging system. Event with
* crud = 'r' and edulevel = LEVEL_PARTICIPATING will
* be considered as view action.
*
* @return array
*/
function survey_get_view_actions() {
return array('download','view all','view form','view graph','view report');
}
/**
* List the actions that correspond to a post of this module.
* This is used by the participation report.
*
* Note: This is not used by new logging system. Event with
* crud = ('c' || 'u' || 'd') and edulevel = LEVEL_PARTICIPATING
* will be considered as post action.
*
* @return array
*/
function survey_get_post_actions() {
return array('submit');
}
/**
* Implementation of the function for printing the form elements that control
* whether the course reset functionality affects the survey.
*
* @param object $mform form passed by reference
*/
function survey_reset_course_form_definition(&$mform) {
$mform->addElement('header', 'surveyheader', get_string('modulenameplural', 'survey'));
$mform->addElement('checkbox', 'reset_survey_answers', get_string('deleteallanswers','survey'));
$mform->addElement('checkbox', 'reset_survey_analysis', get_string('deleteanalysis','survey'));
$mform->disabledIf('reset_survey_analysis', 'reset_survey_answers', 'checked');
}
/**
* Course reset form defaults.
* @return array
*/
function survey_reset_course_form_defaults($course) {
return array('reset_survey_answers'=>1, 'reset_survey_analysis'=>1);
}
/**
* Actual implementation of the reset course functionality, delete all the
* survey responses for course $data->courseid.
*
* @global object
* @param $data the data submitted from the reset course.
* @return array status array
*/
function survey_reset_userdata($data) {
global $DB;
$componentstr = get_string('modulenameplural', 'survey');
$status = array();
$surveyssql = "SELECT ch.id
FROM {survey} ch
WHERE ch.course=?";
$params = array($data->courseid);
if (!empty($data->reset_survey_answers)) {
$DB->delete_records_select('survey_answers', "survey IN ($surveyssql)", $params);
$DB->delete_records_select('survey_analysis', "survey IN ($surveyssql)", $params);
$status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallanswers', 'survey'), 'error'=>false);
}
if (!empty($data->reset_survey_analysis)) {
$DB->delete_records_select('survey_analysis', "survey IN ($surveyssql)", $params);
$status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallanswers', 'survey'), 'error'=>false);
}
// No date shifting.
// Any changes to the list of dates that needs to be rolled should be same during course restore and course reset.
// See MDL-9367.
return $status;
}
/**
* @uses FEATURE_GROUPS
* @uses FEATURE_GROUPINGS
* @uses FEATURE_MOD_INTRO
* @uses FEATURE_COMPLETION_TRACKS_VIEWS
* @uses FEATURE_GRADE_HAS_GRADE
* @uses FEATURE_GRADE_OUTCOMES
* @param string $feature FEATURE_xx constant for requested feature
* @return mixed True if module supports feature, false if not, null if doesn't know
*/
function survey_supports($feature) {
switch($feature) {
case FEATURE_GROUPS: return true;
case FEATURE_GROUPINGS: return true;
case FEATURE_MOD_INTRO: return true;
case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
case FEATURE_COMPLETION_HAS_RULES: return true;
case FEATURE_GRADE_HAS_GRADE: return false;
case FEATURE_GRADE_OUTCOMES: return false;
case FEATURE_BACKUP_MOODLE2: return true;
case FEATURE_SHOW_DESCRIPTION: return true;
default: return null;
}
}
/**
* This function extends the settings navigation block for the site.
*
* It is safe to rely on PAGE here as we will only ever be within the module
* context when this is called
*
* @param navigation_node $settings
* @param navigation_node $surveynode
*/
function survey_extend_settings_navigation($settings, $surveynode) {
global $PAGE;
if (has_capability('mod/survey:readresponses', $PAGE->cm->context)) {
$responsesnode = $surveynode->add(get_string("responsereports", "survey"));
$url = new moodle_url('/mod/survey/report.php', array('id' => $PAGE->cm->id, 'action'=>'summary'));
$responsesnode->add(get_string("summary", "survey"), $url);
$url = new moodle_url('/mod/survey/report.php', array('id' => $PAGE->cm->id, 'action'=>'scales'));
$responsesnode->add(get_string("scales", "survey"), $url);
$url = new moodle_url('/mod/survey/report.php', array('id' => $PAGE->cm->id, 'action'=>'questions'));
$responsesnode->add(get_string("question", "survey"), $url);
$url = new moodle_url('/mod/survey/report.php', array('id' => $PAGE->cm->id, 'action'=>'students'));
$responsesnode->add(get_string('participants'), $url);
if (has_capability('mod/survey:download', $PAGE->cm->context)) {
$url = new moodle_url('/mod/survey/report.php', array('id' => $PAGE->cm->id, 'action'=>'download'));
$surveynode->add(get_string('downloadresults', 'survey'), $url);
}
}
}
/**
* Return a list of page types
* @param string $pagetype current page type
* @param stdClass $parentcontext Block's parent context
* @param stdClass $currentcontext Current context of block
*/
function survey_page_type_list($pagetype, $parentcontext, $currentcontext) {
$module_pagetype = array('mod-survey-*'=>get_string('page-mod-survey-x', 'survey'));
return $module_pagetype;
}
/**
* Mark the activity completed (if required) and trigger the course_module_viewed event.
*
* @param stdClass $survey survey object
* @param stdClass $course course object
* @param stdClass $cm course module object
* @param stdClass $context context object
* @param string $viewed which page viewed
* @since Moodle 3.0
*/
function survey_view($survey, $course, $cm, $context, $viewed) {
// Trigger course_module_viewed event.
$params = array(
'context' => $context,
'objectid' => $survey->id,
'courseid' => $course->id,
'other' => array('viewed' => $viewed)
);
$event = \mod_survey\event\course_module_viewed::create($params);
$event->add_record_snapshot('course_modules', $cm);
$event->add_record_snapshot('course', $course);
$event->add_record_snapshot('survey', $survey);
$event->trigger();
// Completion.
$completion = new completion_info($course);
$completion->set_module_viewed($cm);
}
/**
* Helper function for ordering a set of questions by the given ids.
*
* @param array $questions array of questions objects
* @param array $questionorder array of questions ids indicating the correct order
* @return array list of questions ordered
* @since Moodle 3.0
*/
function survey_order_questions($questions, $questionorder) {
$finalquestions = array();
foreach ($questionorder as $qid) {
$finalquestions[] = $questions[$qid];
}
return $finalquestions;
}
/**
* Translate the question texts and options.
*
* @param stdClass $question question object
* @return stdClass question object with all the text fields translated
* @since Moodle 3.0
*/
function survey_translate_question($question) {
if ($question->text) {
$question->text = get_string($question->text, "survey");
}
if ($question->shorttext) {
$question->shorttext = get_string($question->shorttext, "survey");
}
if ($question->intro) {
$question->intro = get_string($question->intro, "survey");
}
if ($question->options) {
$question->options = get_string($question->options, "survey");
}
return $question;
}
/**
* Returns the questions for a survey (ordered).
*
* @param stdClass $survey survey object
* @return array list of questions ordered
* @since Moodle 3.0
* @throws moodle_exception
*/
function survey_get_questions($survey) {
global $DB;
$questionids = explode(',', $survey->questions);
if (! $questions = $DB->get_records_list("survey_questions", "id", $questionids)) {
throw new moodle_exception('cannotfindquestion', 'survey');
}
return survey_order_questions($questions, $questionids);
}
/**
* Returns subquestions for a given question (ordered).
*
* @param stdClass $question questin object
* @return array list of subquestions ordered
* @since Moodle 3.0
*/
function survey_get_subquestions($question) {
global $DB;
$questionids = explode(',', $question->multi);
$questions = $DB->get_records_list("survey_questions", "id", $questionids);
return survey_order_questions($questions, $questionids);
}
/**
* Save the answer for the given survey
*
* @param stdClass $survey a survey object
* @param array $answersrawdata the answers to be saved
* @param stdClass $course a course object (required for trigger the submitted event)
* @param stdClass $context a context object (required for trigger the submitted event)
* @since Moodle 3.0
*/
function survey_save_answers($survey, $answersrawdata, $course, $context) {
global $DB, $USER;
$answers = array();
// Sort through the data and arrange it.
// This is necessary because some of the questions may have two answers, eg Question 1 -> 1 and P1.
foreach ($answersrawdata as $key => $val) {
if ($key != "userid" && $key != "id") {
if (substr($key, 0, 1) == "q") {
$key = clean_param(substr($key, 1), PARAM_ALPHANUM); // Keep everything but the 'q', number or P number.
}
if (substr($key, 0, 1) == "P") {
$realkey = (int) substr($key, 1);
$answers[$realkey][1] = $val;
} else {
$answers[$key][0] = $val;
}
}
}
// Now store the data.
$timenow = time();
$answerstoinsert = array();
foreach ($answers as $key => $val) {
if ($key != 'sesskey') {
$newdata = new stdClass();
$newdata->time = $timenow;
$newdata->userid = $USER->id;
$newdata->survey = $survey->id;
$newdata->question = $key;
if (!empty($val[0])) {
$newdata->answer1 = $val[0];
} else {
$newdata->answer1 = "";
}
if (!empty($val[1])) {
$newdata->answer2 = $val[1];
} else {
$newdata->answer2 = "";
}
$answerstoinsert[] = $newdata;
}
}
if (!empty($answerstoinsert)) {
$DB->insert_records("survey_answers", $answerstoinsert);
}
// Update completion state.
$cm = get_coursemodule_from_instance('survey', $survey->id, $course->id);
$completion = new completion_info($course);
if (isloggedin() && !isguestuser() && $completion->is_enabled($cm) && $survey->completionsubmit) {
$completion->update_state($cm, COMPLETION_COMPLETE);
}
$params = array(
'context' => $context,
'courseid' => $course->id,
'other' => array('surveyid' => $survey->id)
);
$event = \mod_survey\event\response_submitted::create($params);
$event->trigger();
}
/**
* Obtains the automatic completion state for this survey based on the condition
* in feedback settings.
*
* @param object $course Course
* @param object $cm Course-module
* @param int $userid User ID
* @param bool $type Type of comparison (or/and; can be used as return value if no conditions)
* @return bool True if completed, false if not, $type if conditions not set.
*/
function survey_get_completion_state($course, $cm, $userid, $type) {
global $DB;
// Get survey details.
$survey = $DB->get_record('survey', array('id' => $cm->instance), '*', MUST_EXIST);
// If completion option is enabled, evaluate it and return true/false.
if ($survey->completionsubmit) {
$params = array('userid' => $userid, 'survey' => $survey->id);
return $DB->record_exists('survey_answers', $params);
} else {
// Completion option is not enabled so just return $type.
return $type;
}
}
/**
* Check if the module has any update that affects the current user since a given time.
*
* @param cm_info $cm course module data
* @param int $from the time to check updates from
* @param array $filter if we need to check only specific updates
* @return stdClass an object with the different type of areas indicating if they were updated or not
* @since Moodle 3.2
*/
function survey_check_updates_since(cm_info $cm, $from, $filter = array()) {
global $DB, $USER;
$updates = new stdClass();
if (!has_capability('mod/survey:participate', $cm->context)) {
return $updates;
}
$updates = course_check_module_updates_since($cm, $from, array(), $filter);
$updates->answers = (object) array('updated' => false);
$select = 'survey = ? AND userid = ? AND time > ?';
$params = array($cm->instance, $USER->id, $from);
$answers = $DB->get_records_select('survey_answers', $select, $params, '', 'id');
if (!empty($answers)) {
$updates->answers->updated = true;
$updates->answers->itemids = array_keys($answers);
}
// Now, teachers should see other students updates.
if (has_capability('mod/survey:readresponses', $cm->context)) {
$select = 'survey = ? AND time > ?';
$params = array($cm->instance, $from);
if (groups_get_activity_groupmode($cm) == SEPARATEGROUPS) {
$groupusers = array_keys(groups_get_activity_shared_group_members($cm));
if (empty($groupusers)) {
return $updates;
}
list($insql, $inparams) = $DB->get_in_or_equal($groupusers);
$select .= ' AND userid ' . $insql;
$params = array_merge($params, $inparams);
}
$updates->useranswers = (object) array('updated' => false);
$answers = $DB->get_records_select('survey_answers', $select, $params, '', 'id');
if (!empty($answers)) {
$updates->useranswers->updated = true;
$updates->useranswers->itemids = array_keys($answers);
}
}
return $updates;
}
/**
* This function receives a calendar event and returns the action associated with it, or null if there is none.
*
* This is used by block_myoverview in order to display the event appropriately. If null is returned then the event
* is not displayed on the block.
*
* @param calendar_event $event
* @param \core_calendar\action_factory $factory
* @param int $userid User id to use for all capability checks, etc. Set to 0 for current user (default).
* @return \core_calendar\local\event\entities\action_interface|null
*/
function mod_survey_core_calendar_provide_event_action(calendar_event $event,
\core_calendar\action_factory $factory,
int $userid = 0) {
global $USER;
if (empty($userid)) {
$userid = $USER->id;
}
$cm = get_fast_modinfo($event->courseid, $userid)->instances['survey'][$event->instance];
$context = context_module::instance($cm->id);
if (!has_capability('mod/survey:participate', $context, $userid)) {
return null;
}
$completion = new \completion_info($cm->get_course());
$completiondata = $completion->get_data($cm, false, $userid);
if ($completiondata->completionstate != COMPLETION_INCOMPLETE) {
return null;
}
return $factory->create_instance(
get_string('view'),
new \moodle_url('/mod/survey/view.php', ['id' => $cm->id]),
1,
true
);
}
/**
* Add a get_coursemodule_info function in case any survey type wants to add 'extra' information
* for the course (see resource).
*
* Given a course_module object, this function returns any "extra" information that may be needed
* when printing this activity in a course listing. See get_array_of_activities() in course/lib.php.
*
* @param stdClass $coursemodule The coursemodule object (record).
* @return cached_cm_info An object on information that the courses
* will know about (most noticeably, an icon).
*/
function survey_get_coursemodule_info($coursemodule) {
global $DB;
$dbparams = ['id' => $coursemodule->instance];
$fields = 'id, name, intro, introformat, completionsubmit';
if (!$survey = $DB->get_record('survey', $dbparams, $fields)) {
return false;
}
$result = new cached_cm_info();
$result->name = $survey->name;
if ($coursemodule->showdescription) {
// Convert intro to html. Do not filter cached version, filters run at display time.
$result->content = format_module_intro('survey', $survey, $coursemodule->id, false);
}
// Populate the custom completion rules as key => value pairs, but only if the completion mode is 'automatic'.
if ($coursemodule->completion == COMPLETION_TRACKING_AUTOMATIC) {
$result->customdata['customcompletionrules']['completionsubmit'] = $survey->completionsubmit;
}
return $result;
}
/**
* Callback which returns human-readable strings describing the active completion custom rules for the module instance.
*
* @param cm_info|stdClass $cm object with fields ->completion and ->customdata['customcompletionrules']
* @return array $descriptions the array of descriptions for the custom rules.
*/
function mod_survey_get_completion_active_rule_descriptions($cm) {
// Values will be present in cm_info, and we assume these are up to date.
if (empty($cm->customdata['customcompletionrules'])
|| $cm->completion != COMPLETION_TRACKING_AUTOMATIC) {
return [];
}
$descriptions = [];
foreach ($cm->customdata['customcompletionrules'] as $key => $val) {
switch ($key) {
case 'completionsubmit':
if (!empty($val)) {
$descriptions[] = get_string('completionsubmit', 'survey');
}
break;
default:
break;
}
}
return $descriptions;
}