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lib.php
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lib.php
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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/>.
/**
* Version information
*
* @package mod
* @subpackage choicegroup
* @copyright 2013 Université de Lausanne
* @author Nicolas Dunand <[email protected]>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/** @global int $CHOICEGROUP_COLUMN_HEIGHT */
global $CHOICEGROUP_COLUMN_HEIGHT;
$CHOICEGROUP_COLUMN_HEIGHT = 300;
/** @global int $CHOICEGROUP_COLUMN_WIDTH */
global $CHOICEGROUP_COLUMN_WIDTH;
$CHOICEGROUP_COLUMN_WIDTH = 300;
define('CHOICEGROUP_PUBLISH_ANONYMOUS', '0');
define('CHOICEGROUP_PUBLISH_NAMES', '1');
define('CHOICEGROUP_PUBLISH_DEFAULT', '1');
define('CHOICEGROUP_SHOWRESULTS_NOT', '0');
define('CHOICEGROUP_SHOWRESULTS_AFTER_ANSWER', '1');
define('CHOICEGROUP_SHOWRESULTS_AFTER_CLOSE', '2');
define('CHOICEGROUP_SHOWRESULTS_ALWAYS', '3');
define('CHOICEGROUP_SHOWRESULTS_DEFAULT', '3');
define('CHOICEGROUP_DISPLAY_HORIZONTAL', '0');
define('CHOICEGROUP_DISPLAY_VERTICAL', '1');
define('CHOICEGROUP_SORTGROUPS_SYSTEMDEFAULT', '0');
define('CHOICEGROUP_SORTGROUPS_CREATEDATE', '1');
define('CHOICEGROUP_SORTGROUPS_NAME', '2');
/** @global array $CHOICEGROUP_PUBLISH */
global $CHOICEGROUP_PUBLISH;
$CHOICEGROUP_PUBLISH = array (CHOICEGROUP_PUBLISH_ANONYMOUS => get_string('publishanonymous', 'choicegroup'),
CHOICEGROUP_PUBLISH_NAMES => get_string('publishnames', 'choicegroup'));
/** @global array $CHOICEGROUP_SHOWRESULTS */
global $CHOICEGROUP_SHOWRESULTS;
$CHOICEGROUP_SHOWRESULTS = array (CHOICEGROUP_SHOWRESULTS_NOT => get_string('publishnot', 'choicegroup'),
CHOICEGROUP_SHOWRESULTS_AFTER_ANSWER => get_string('publishafteranswer', 'choicegroup'),
CHOICEGROUP_SHOWRESULTS_AFTER_CLOSE => get_string('publishafterclose', 'choicegroup'),
CHOICEGROUP_SHOWRESULTS_ALWAYS => get_string('publishalways', 'choicegroup'));
/** @global array $CHOICEGROUP_DISPLAY */
global $CHOICEGROUP_DISPLAY;
$CHOICEGROUP_DISPLAY = array (CHOICEGROUP_DISPLAY_HORIZONTAL => get_string('displayhorizontal', 'choicegroup'),
CHOICEGROUP_DISPLAY_VERTICAL => get_string('displayvertical','choicegroup'));
require_once($CFG->dirroot.'/group/lib.php');
/// Standard functions /////////////////////////////////////////////////////////
/**
* @global object
* @param object $course
* @param object $user
* @param object $mod
* @param object $choicegroup
* @return object|null
*/
function choicegroup_user_outline($course, $user, $mod, $choicegroup) {
if ($groupmembership = choicegroup_get_user_answer($choicegroup, $user)) { // if user has answered
$result = new stdClass();
$result->info = "'".format_string($groupmembership->name)."'";
$result->time = $groupmembership->timeuseradded;
return $result;
}
return null;
}
/**
*
*/
function choicegroup_get_user_answer($choicegroup, $user, $returnArray = false, $refresh = false) {
global $DB, $choicegroup_groups;
static $user_answers = array();
if (is_numeric($user)) {
$userid = $user;
}
else {
$userid = $user->id;
}
if (!$refresh and isset($user_answers[$userid])) {
if ($returnArray === true) {
return $user_answers[$userid];
} else {
return $user_answers[$userid][0];
}
} else {
$user_answers = array();
}
if(!is_array($choicegroup_groups) || !count($choicegroup_groups)){
$choicegroup_groups = choicegroup_get_groups($choicegroup);
}
$groupids = array();
foreach ($choicegroup_groups as $group) {
if (is_numeric($group->id)) {
$groupids[] = $group->id;
}
}
if ($groupids) {
$params1 = array($userid);
list($insql, $params2) = $DB->get_in_or_equal($groupids);
$params = array_merge($params1, $params2);
$groupmemberships = $DB->get_records_sql('SELECT * FROM {groups_members} WHERE userid = ? AND groupid '.$insql, $params);
$groups = array();
foreach ($groupmemberships as $groupmembership) {
$group = $choicegroup_groups[$groupmembership->groupid];
$group->timeuseradded = $groupmembership->timeadded;
$groups[] = $group;
}
if (count($groups) > 0) {
$user_answers[$userid] = $groups;
if ($returnArray === true) {
return $groups;
} else {
return $groups[0];
}
}
}
return false;
}
/**
* @global object
* @param object $course
* @param object $user
* @param object $mod
* @param object $choicegroup
* @return string|void
*/
function choicegroup_user_complete($course, $user, $mod, $choicegroup) {
if ($groupmembership = choicegroup_get_user_answer($choicegroup, $user)) { // if user has answered
$result = new stdClass();
$result->info = "'".format_string($groupmembership->name)."'";
$result->time = $groupmembership->timeuseradded;
echo get_string("answered", "choicegroup").": $result->info. ".get_string("updated", '', userdate($result->time));
} else {
print_string("notanswered", "choicegroup");
}
}
/**
* 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 $choicegroup
* @return int
*/
function choicegroup_add_instance($choicegroup) {
global $DB;
$choicegroup->timemodified = time();
if (empty($choicegroup->timerestrict)) {
$choicegroup->timeopen = 0;
$choicegroup->timeclose = 0;
}
//insert answers
$choicegroup->id = $DB->insert_record("choicegroup", $choicegroup);
// deserialize the selected groups
$groupIDs = explode(';', $choicegroup->serializedselectedgroups);
$groupIDs = array_diff( $groupIDs, array( '' ) );
foreach ($groupIDs as $groupID) {
$groupID = trim($groupID);
if (isset($groupID) && $groupID != '') {
$option = new stdClass();
$option->groupid = $groupID;
$option->choicegroupid = $choicegroup->id;
$property = 'group_' . $groupID . '_limit';
if (isset($choicegroup->$property)) {
$option->maxanswers = $choicegroup->$property;
}
$option->timemodified = time();
$DB->insert_record("choicegroup_options", $option);
}
}
if (class_exists('\core_completion\api')) {
$completiontimeexpected = !empty($choicegroup->completionexpected) ? $choicegroup->completionexpected : null;
\core_completion\api::update_completion_date_event($choicegroup->coursemodule, 'choicegroup', $choicegroup->id, $completiontimeexpected);
}
return $choicegroup->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 $choicegroup
* @return bool
*/
function choicegroup_update_instance($choicegroup) {
global $DB;
$choicegroup->id = $choicegroup->instance;
$choicegroup->timemodified = time();
if (empty($choicegroup->timerestrict)) {
$choicegroup->timeopen = 0;
$choicegroup->timeclose = 0;
}
if (empty($choicegroup->multipleenrollmentspossible)) {
$choicegroup->multipleenrollmentspossible = 0;
}
// deserialize the selected groups
$groupIDs = explode(';', $choicegroup->serializedselectedgroups);
$groupIDs = array_diff( $groupIDs, array( '' ) );
// prepare pre-existing selected groups from database
if (!($preExistingGroups = $DB->get_records("choicegroup_options", array("choicegroupid" => $choicegroup->id), "id"))) {
return false;
}
// walk through form-selected groups
foreach ($groupIDs as $groupID) {
$groupID = trim($groupID);
if (isset($groupID) && $groupID != '') {
$option = new stdClass();
$option->groupid = $groupID;
$option->choicegroupid = $choicegroup->id;
$property = 'group_' . $groupID . '_limit';
if (isset($choicegroup->$property)) {
$option->maxanswers = $choicegroup->$property;
}
$option->timemodified = time();
// Find out if this selection already exists
foreach ($preExistingGroups as $key => $preExistingGroup) {
if ($option->groupid == $preExistingGroup->groupid) {
// match found, so instead of creating a new record we should merely update a pre-existing record
$option->id = $preExistingGroup->id;
$DB->update_record("choicegroup_options", $option);
// remove the element from the array to not deal with it later
unset($preExistingGroups[$key]);
continue 2; // continue the big loop
}
}
$DB->insert_record("choicegroup_options", $option);
}
}
// remove all remaining pre-existing groups which did not appear in the form (and are thus assumed to have been deleted)
foreach ($preExistingGroups as $preExistingGroup) {
$DB->delete_records("choicegroup_options", array("id"=>$preExistingGroup->id));
}
if (class_exists('\core_completion\api')) {
$completiontimeexpected = !empty($choicegroup->completionexpected) ? $choicegroup->completionexpected : null;
\core_completion\api::update_completion_date_event($choicegroup->coursemodule, 'choicegroup', $choicegroup->id, $completiontimeexpected);
}
return $DB->update_record('choicegroup', $choicegroup);
}
/**
* @global object
* @param object $choicegroup
* @param object $user
* @param object $coursemodule
* @param array $allresponses
* @return array
*/
function choicegroup_prepare_options($choicegroup, $user, $coursemodule, $allresponses) {
$cdisplay = array('options'=>array());
$cdisplay['limitanswers'] = true;
$context = context_module::instance($coursemodule->id);
$answers = choicegroup_get_user_answer($choicegroup, $user, true, true);
if (!isset($choicegroup->option)) {
$choicegroup->option = [];
}
foreach ($choicegroup->option as $optionid => $text) {
if (isset($text)) { //make sure there are no dud entries in the db with blank text values.
$option = new stdClass;
$option->attributes = new stdClass;
$option->attributes->value = $optionid;
$option->groupid = $text;
$option->maxanswers = $choicegroup->maxanswers[$optionid];
$option->displaylayout = $choicegroup->display;
if (isset($allresponses[$text])) {
$option->countanswers = count($allresponses[$text]);
} else {
$option->countanswers = 0;
}
if (is_array($answers)) {
foreach($answers as $answer) {
if ($answer && $text == $answer->id) {
$option->attributes->checked = true;
}
}
}
if ( $choicegroup->limitanswers && ($option->countanswers >= $option->maxanswers) && empty($option->attributes->checked)) {
$option->attributes->disabled = true;
}
$cdisplay['options'][] = $option;
}
}
$cdisplay['hascapability'] = is_enrolled($context, null, 'mod/choicegroup:choose'); //only enrolled users are allowed to make a choicegroup
if ($choicegroup->allowupdate && is_array($answers)) {
$cdisplay['allowupdate'] = true;
}
return $cdisplay;
}
/**
* @global object
* @param int $formanswer
* @param object $choicegroup
* @param int $userid
* @param object $course Course object
* @param object $cm
*/
function choicegroup_user_submit_response($formanswer, $choicegroup, $userid, $course, $cm) {
global $DB, $CFG;
require_once($CFG->libdir.'/completionlib.php');
$context = context_module::instance($cm->id);
$eventparams = array(
'context' => $context,
'objectid' => $choicegroup->id
);
$selected_option = $DB->get_record('choicegroup_options', array('id' => $formanswer));
$current = choicegroup_get_user_answer($choicegroup, $userid);
if ($current) {
$currentgroup = $DB->get_record('groups', array('id' => $current->id), 'id,name', MUST_EXIST);
}
$selectedgroup = $DB->get_record('groups', array('id' => $selected_option->groupid), 'id,name', MUST_EXIST);
$countanswers=0;
groups_add_member($selected_option->groupid, $userid);
$groupmember_added = true;
if ($choicegroup->limitanswers) {
$groupmember = $DB->get_record('groups_members', array('groupid' => $selected_option->groupid, 'userid'=>$userid));
$select_count = 'groupid='.$selected_option->groupid.' and id<='.$groupmember->id;
$countanswers = $DB->count_records_select('groups_members', $select_count);
$maxans = $choicegroup->maxanswers[$formanswer];
if ($countanswers > $maxans) {
groups_remove_member($selected_option->groupid, $userid);
$groupmember_added = false;
}
}
if ($groupmember_added) {
if ($current) {
if (!($choicegroup->multipleenrollmentspossible == 1)) {
if ($selected_option->groupid != $current->id) {
if (groups_is_member($current->id, $userid)) {
groups_remove_member($current->id, $userid);
// $eventparams['groupname'] = $currentgroup->name;
$event = \mod_choicegroup\event\choice_removed::create($eventparams);
$event->add_record_snapshot('course_modules', $cm);
$event->add_record_snapshot('course', $course);
$event->add_record_snapshot('choicegroup', $choicegroup);
$event->trigger();
}
}
}
} else {
// Update completion state
$completion = new completion_info($course);
if ($completion->is_enabled($cm) && $choicegroup->completionsubmit) {
$completion->update_state($cm, COMPLETION_COMPLETE);
}
// $eventparams['groupname'] = $selectedgroup->name;
$event = \mod_choicegroup\event\choice_updated::create($eventparams);
$event->add_record_snapshot('course_modules', $cm);
$event->add_record_snapshot('course', $course);
$event->add_record_snapshot('choicegroup', $choicegroup);
$event->trigger();
}
} else {
if (!$current || !($current->id==$selected_option->groupid)) { //check to see if current choicegroup already selected - if not display error
print_error('choicegroupfull', 'choicegroup', $CFG->wwwroot.'/mod/choicegroup/view.php?id='.$cm->id);
}
}
}
/**
* @param object $choicegroup
* @param array $allresponses
* @param object $cm
* @return void Output is echo'd
*/
function choicegroup_show_reportlink($choicegroup, $allresponses, $cm) {
$responsecount = 0;
$respondents = array();
foreach($allresponses as $optionid => $userlist) {
if ($optionid) {
$responsecount += count($userlist);
if ($choicegroup->multipleenrollmentspossible) {
foreach ($userlist as $user) {
if (!in_array($user->id, $respondents)) {
$respondents[] = $user->id;
}
}
}
}
}
echo '<div class="reportlink"><a href="report.php?id='.$cm->id.'">'.get_string("viewallresponses", "choicegroup", $responsecount);
if ($choicegroup->multipleenrollmentspossible == 1) {
echo ' ' . get_string("byparticipants", "choicegroup", count($respondents));
}
echo '</a></div>';
}
/**
* @global object
* @param object $choicegroup
* @param object $course
* @param object $coursemodule
* @param array $allresponses
* * @param bool $allresponses
* @return object
*/
function prepare_choicegroup_show_results($choicegroup, $course, $cm, $allresponses, $forcepublish=false) {
global $CFG, $FULLSCRIPT, $PAGE, $OUTPUT;
$display = clone($choicegroup);
$display->coursemoduleid = $cm->id;
$display->courseid = $course->id;
//debugging('<pre>'.print_r($choicegroup->option, true).'</pre>', DEBUG_DEVELOPER);
//debugging('<pre>'.print_r($allresponses, true).'</pre>', DEBUG_DEVELOPER);
//overwrite options value;
$display->options = array();
$totaluser = 0;
foreach ($choicegroup->option as $optionid => $groupid) {
$display->options[$optionid] = new stdClass;
$display->options[$optionid]->groupid = $groupid;
$display->options[$optionid]->maxanswer = $choicegroup->maxanswers[$optionid];
if (array_key_exists($groupid, $allresponses)) {
$display->options[$optionid]->user = $allresponses[$groupid];
foreach ($display->options[$optionid]->user as $user){
$user->grpsmemberid = array_search(array($groupid, $user->id), $choicegroup->grpmemberid);
}
$totaluser += count($allresponses[$groupid]);
}
}
if ($choicegroup->showunanswered) {
$display->options[0]->user = $allresponses[0];
}
unset($display->option);
unset($display->maxanswers);
$display->numberofuser = $totaluser;
$context = context_module::instance($cm->id);
$display->viewresponsecapability = has_capability('mod/choicegroup:readresponses', $context);
$display->deleterepsonsecapability = has_capability('mod/choicegroup:deleteresponses',$context);
$display->fullnamecapability = has_capability('moodle/site:viewfullnames', $context);
if (empty($allresponses)) {
echo $OUTPUT->heading(get_string("nousersyet"));
return false;
}
$totalresponsecount = 0;
foreach ($allresponses as $optionid => $userlist) {
if ($choicegroup->showunanswered || $optionid) {
$totalresponsecount += count($userlist);
}
}
$context = context_module::instance($cm->id);
$hascapfullnames = has_capability('moodle/site:viewfullnames', $context);
$viewresponses = has_capability('mod/choicegroup:readresponses', $context);
switch ($forcepublish) {
case CHOICEGROUP_PUBLISH_NAMES:
echo '<div id="tablecontainer">';
if ($viewresponses) {
echo '<form id="attemptsform" method="post" action="'.$FULLSCRIPT.'" onsubmit="var menu = document.getElementById(\'menuaction\'); return (menu.options[menu.selectedIndex].value == \'delete\' ? \''.addslashes_js(get_string('deleteattemptcheck','quiz')).'\' : true);">';
echo '<div>';
echo '<input type="hidden" name="id" value="'.$cm->id.'" />';
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
echo '<input type="hidden" name="mode" value="overview" />';
}
echo "<table cellpadding=\"5\" cellspacing=\"10\" class=\"results names\">";
echo "<tr>";
$columncount = array(); // number of votes in each column
if ($choicegroup->showunanswered) {
$columncount[0] = 0;
echo "<th class=\"col0 header\" scope=\"col\">";
print_string('notanswered', 'choicegroup');
echo "</th>";
}
$count = 1;
foreach ($choicegroup->option as $optionid => $optiontext) {
$columncount[$optionid] = 0; // init counters
echo "<th class=\"col$count header\" scope=\"col\">";
echo format_string($optiontext);
echo "</th>";
$count++;
}
echo "</tr><tr>";
if ($choicegroup->showunanswered) {
echo "<td class=\"col$count data\" >";
// added empty row so that when the next iteration is empty,
// we do not get <table></table> error from w3c validator
// MDL-7861
echo "<table class=\"choicegroupresponse\"><tr><td></td></tr>";
if (!empty($allresponses[0])) {
foreach ($allresponses[0] as $user) {
echo "<tr>";
echo "<td class=\"picture\">";
echo $OUTPUT->user_picture($user, array('courseid'=>$course->id));
echo "</td><td class=\"fullname\">";
echo "<a href=\"$CFG->wwwroot/user/view.php?id=$user->id&course=$course->id\">";
echo fullname($user, $hascapfullnames);
echo "</a>";
echo "</td></tr>";
}
}
echo "</table></td>";
}
$count = 1;
foreach ($choicegroup->option as $optionid => $optiontext) {
echo '<td class="col'.$count.' data" >';
// added empty row so that when the next iteration is empty,
// we do not get <table></table> error from w3c validator
// MDL-7861
echo '<table class="choicegroupresponse"><tr><td></td></tr>';
if (isset($allresponses[$optionid])) {
foreach ($allresponses[$optionid] as $user) {
$columncount[$optionid] += 1;
echo '<tr><td class="attemptcell">';
if ($viewresponses and has_capability('mod/choicegroup:deleteresponses',$context)) {
echo '<input type="checkbox" name="userid[]" value="'. $user->id. '" />';
}
echo '</td><td class="picture">';
echo $OUTPUT->user_picture($user, array('courseid'=>$course->id));
echo '</td><td class="fullname">';
echo "<a href=\"$CFG->wwwroot/user/view.php?id=$user->id&course=$course->id\">";
echo fullname($user, $hascapfullnames);
echo '</a>';
echo '</td></tr>';
}
}
$count++;
echo '</table></td>';
}
echo "</tr><tr>";
$count = 1;
if ($choicegroup->showunanswered) {
echo "<td></td>";
}
foreach ($choicegroup->option as $optionid => $optiontext) {
echo "<td align=\"center\" class=\"col$count count\">";
if ($choicegroup->limitanswers) {
echo get_string("taken", "choicegroup").":";
echo $columncount[$optionid];
echo "<br/>";
echo get_string("limit", "choicegroup").":";
echo $choicegroup->maxanswers[$optionid];
} else {
if (isset($columncount[$optionid])) {
echo $columncount[$optionid];
}
}
echo "</td>";
$count++;
}
echo "</tr>";
/// Print "Select all" etc.
if ($viewresponses and has_capability('mod/choicegroup:deleteresponses',$context)) {
echo '<tr><td></td><td>';
echo '<a href="javascript:select_all_in(\'DIV\',null,\'tablecontainer\');">'.get_string('selectall').'</a> / ';
echo '<a href="javascript:deselect_all_in(\'DIV\',null,\'tablecontainer\');">'.get_string('deselectall').'</a> ';
echo ' ';
echo html_writer::label(get_string('withselected', 'choicegroup'), 'menuaction');
echo html_writer::select(array('delete' => get_string('delete')), 'action', '', array(''=>get_string('withselectedusers')), array('id'=>'menuaction'));
$PAGE->requires->js_init_call('M.util.init_select_autosubmit', array('attemptsform', 'menuaction', ''));
echo '<noscript id="noscriptmenuaction" style="display:inline">';
echo '<div>';
echo '<input type="submit" value="'.get_string('go').'" /></div></noscript>';
echo '</td><td></td></tr>';
}
echo "</table></div>";
if ($viewresponses) {
echo "</form></div>";
}
break;
}
return $display;
}
/**
* @global object
* @param array $grpsmemberids
* @param object $choicegroup Choice main table row
* @param object $cm Course-module object
* @param object $course Course object
* @return bool
*/
function choicegroup_delete_responses($grpsmemberids, $choicegroup, $cm, $course) {
global $CFG, $DB;
require_once($CFG->libdir.'/completionlib.php');
if(!is_array($grpsmemberids) || empty($grpsmemberids)) {
return false;
}
foreach($grpsmemberids as $num => $grpsmemberid) {
if(empty($grpsmemberid)) {
unset($grpsmemberids[$num]);
}
}
$context = context_module::instance($cm->id);
$completion = new completion_info($course);
$eventparams = array(
'context' => $context,
'objectid' => $choicegroup->id
);
foreach($grpsmemberids as $grpsmemberid) {
$groupsmember = $DB->get_record('groups_members', array('id'=>$grpsmemberid), '*', MUST_EXIST);
$userid = $groupsmember->userid;
$groupid = $groupsmember->groupid;
$currentgroup = $DB->get_record('groups', array('id' => $groupid), 'id,name', MUST_EXIST);
if (groups_is_member($groupid, $userid)) {
groups_remove_member($groupid, $userid);
$event = \mod_choicegroup\event\choice_removed::create($eventparams);
$event->add_record_snapshot('course_modules', $cm);
$event->add_record_snapshot('course', $course);
$event->add_record_snapshot('choicegroup', $choicegroup);
$event->trigger();
}
// Update completion state
$current = choicegroup_get_user_answer($choicegroup, $userid, false, true);
if ($current === false && $completion->is_enabled($cm) && $choicegroup->completionsubmit) {
$completion->update_state($cm, COMPLETION_INCOMPLETE, $userid);
}
}
return true;
}
/**
* 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 $id
* @return bool
*/
function choicegroup_delete_instance($id) {
global $DB;
if (! $choicegroup = $DB->get_record("choicegroup", array("id"=>"$id"))) {
return false;
}
$result = true;
if (! $DB->delete_records("choicegroup_options", array("choicegroupid"=>"$choicegroup->id"))) {
$result = false;
}
if (! $DB->delete_records("choicegroup", array("id"=>"$choicegroup->id"))) {
$result = false;
}
return $result;
}
/**
* Returns text string which is the answer that matches the id
*
* @global object
* @param object $choicegroup
* @param int $id
* @return string
*/
function choicegroup_get_option_text($choicegroup, $id) {
global $DB;
if ($result = $DB->get_record('groups', array('id' => $id))) {
return $result->name;
} else {
return get_string("notanswered", "choicegroup");
}
}
/*
* Returns DB records of groups used by the choicegroup activity
*
* @global object
* @param object $choicegroup
* @return array
*/
function choicegroup_get_groups($choicegroup) {
global $DB;
static $groups = array();
if (count($groups)) {
return $groups;
}
if (is_numeric($choicegroup)) {
$choicegroupid = $choicegroup;
}
else {
$choicegroupid = $choicegroup->id;
}
$groups = array();
$options = $DB->get_records('choicegroup_options', array('choicegroupid' => $choicegroupid));
foreach ($options as $option) {
if ($group = $DB->get_record('groups', array('id' => $option->groupid)))
$groups[$group->id] = $group;
}
return $groups;
}
/**
* Gets a full choicegroup record
*
* @global object
* @param int $choicegroupid
* @return object|bool The choicegroup or false
*/
function choicegroup_get_choicegroup($choicegroupid) {
global $DB;
if ($choicegroup = $DB->get_record("choicegroup", array("id" => $choicegroupid))) {
$sortcolumn = choicegroup_get_sort_column($choicegroup);
$params = array(
'choicegroupid' => $choicegroupid
);
$grpfilter = '';
if (($groupid = optional_param('group', 0, PARAM_INT)) != 0) {
$params['groupid'] = $groupid;
$grpfilter = "AND grp_o.groupid = :groupid";
}
$sql = "SELECT grp_m.id grpmemberid, grp_m.userid, grp_o.id, grp_o.groupid, grp_o.maxanswers
FROM {groups} grp
INNER JOIN {choicegroup_options} grp_o on grp.id = grp_o.groupid
LEFT JOIN {groups_members} grp_m on grp_m.groupid = grp_o.groupid
WHERE grp_o.choicegroupid = :choicegroupid $grpfilter
ORDER BY $sortcolumn ASC";
$rs = $DB->get_recordset_sql($sql, $params);
foreach ($rs as $option) {
$choicegroup->option[$option->id] = $option->groupid;
$choicegroup->grpmemberid[$option->grpmemberid] = array($option->groupid, $option->userid);
$choicegroup->maxanswers[$option->id] = $option->maxanswers;
}
$rs->close();
return $choicegroup;
}
return false;
}
function choicegroup_get_sort_column($choicegroup) {
if ($choicegroup->sortgroupsby == CHOICEGROUP_SORTGROUPS_SYSTEMDEFAULT) {
$sortcolumn = get_config('choicegroup', 'sortgroupsby');
} else {
$sortcolumn = $choicegroup->sortgroupsby;
}
switch ($sortcolumn) {
case CHOICEGROUP_SORTGROUPS_CREATEDATE:
return 'timecreated';
case CHOICEGROUP_SORTGROUPS_NAME:
return 'name';
default:
return 'timecreated';
}
}
/**
* @return array
*/
function choicegroup_get_view_actions() {
return array('view','view all','report');
}
/**
* @return array
*/
function choicegroup_get_post_actions() {
return array('choose','choose again');
}
/**
* Implementation of the function for printing the form elements that control
* whether the course reset functionality affects the choicegroup.
*
* @param object $mform form passed by reference
*/
function choicegroup_reset_course_form_definition(&$mform) {
$mform->addElement('header', 'choicegroupheader', get_string('modulenameplural', 'choicegroup'));
$mform->addElement('advcheckbox', 'reset_choicegroup', get_string('removeresponses','choicegroup'));
}
/**
* Course reset form defaults.
*
* @return array
*/
function choicegroup_reset_course_form_defaults($course) {
return array('reset_choicegroup'=>1);
}
/**
* @global object
* @global object
* @global object
* @uses CONTEXT_MODULE
* @param object $choicegroup
* @param object $cm
* @param int $groupmode Group mode
* @param bool $onlyactive Whether to get response data for active users only
* @return array
*/
function choicegroup_get_response_data($choicegroup, $cm, $groupmode, $onlyactive) {
// Initialise the returned array, which is a matrix: $allresponses[responseid][userid] = responseobject.
static $allresponses = array();
if (count($allresponses)) {
return $allresponses;
}
// Get the current group.
if ($groupmode > 0) {
$currentgroup = groups_get_activity_group($cm);
} else {
$currentgroup = 0;
}
// First get all the users who have access here.
// To start with we assume they are all "unanswered" then move them later.
$ctx = \context_module::instance($cm->id);
$users = get_enrolled_users($ctx, 'mod/choicegroup:choose', $currentgroup, 'u.*', 'u.lastname, u.firstname', 0, 0, $onlyactive);
if ($users) {
$modinfo = get_fast_modinfo($cm->course);
$cminfo = $modinfo->get_cm($cm->id);
$availability = new \core_availability\info_module($cminfo);
$users = $availability->filter_user_list($users);
}
$allresponses[0] = $users;
$responses = choicegroup_get_responses($choicegroup, $ctx, $currentgroup, $onlyactive);
foreach ($responses as $response){
if (isset($users[$response->userid])) {
$allresponses[$response->groupid][$response->userid] = clone $users[$response->userid];
$allresponses[$response->groupid][$response->userid]->timemodified = $response->timeadded;
unset($allresponses[0][$response->userid]);
}
}
return $allresponses;
}
/* Return an array with the options selected of users of the $choicegroup
*
* @param object $choicegroup choicegroup record
* @param context_module $ctx Context instance
* @param int $currentgroup Current group
* @param bool $onlyactive Whether to get responses for active users only
* @return array of selected options by all users
*/
function choicegroup_get_responses($choicegroup, $ctx, $currentgroup, $onlyactive) {
global $DB;
if (is_numeric($choicegroup)) {
$choicegroupid = $choicegroup;
} else {
$choicegroupid = $choicegroup->id;
}
$params1 = array('choicegroupid'=>$choicegroupid);
list($esql, $params2) = get_enrolled_sql($ctx, 'mod/choicegroup:choose', $currentgroup, $onlyactive);
$params = array_merge($params1, $params2);
$sql = 'SELECT gm.* FROM {user} u JOIN ('.$esql.') je ON je.id = u.id
JOIN {groups_members} gm ON gm.userid = u.id AND groupid IN (
SELECT groupid FROM {choicegroup_options} WHERE choicegroupid=:choicegroupid)
WHERE u.deleted = 0 ORDER BY u.lastname ASC,u.firstname ASC';
return $DB->get_records_sql($sql, $params);
}
/**
* Returns all other caps used in module
*
* @return array
*/
function choicegroup_get_extra_capabilities() {
return array('moodle/site:accessallgroups');
}
/**
* @uses FEATURE_GROUPS
* @uses FEATURE_GROUPINGS
* @uses FEATURE_GROUPMEMBERSONLY
* @uses FEATURE_MOD_INTRO
* @uses FEATURE_COMPLETION_TRACKS_VIEWS
* @uses FEATURE_GRADE_HAS_GRADE
* @uses FEATURE_GRADE_OUTCOMES
* @param string $feature FEATURE_xx constant for requested feature
* @return mixed True if module supports feature, null if doesn't know
*/
function choicegroup_supports($feature) {
switch($feature) {
case FEATURE_GROUPS: return true;
case FEATURE_GROUPINGS: return true;
case FEATURE_GROUPMEMBERSONLY: 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;
}
}
/**
* Adds module specific settings to the settings block
*