Tim Hunt
7bc488dc3d
The group setting tab is now disabled if there are no groups in the course. The code also now respects groupings. Thanks to Matt Petro for this patch.
285 lines
9.7 KiB
PHP
285 lines
9.7 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This page handles listing of quiz overrides
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*
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* @package mod_quiz
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* @copyright 2010 Matt Petro
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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require_once(dirname(__FILE__) . '/../../config.php');
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require_once($CFG->dirroot.'/mod/quiz/lib.php');
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require_once($CFG->dirroot.'/mod/quiz/locallib.php');
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require_once($CFG->dirroot.'/mod/quiz/override_form.php');
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$cmid = required_param('cmid', PARAM_INT); // course module ID, or
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$mode = optional_param('mode', '', PARAM_ALPHA); // one of 'user' or 'group', default is 'group'
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if (! $cm = get_coursemodule_from_id('quiz', $cmid)) {
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print_error('invalidcoursemodule');
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}
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if (! $quiz = $DB->get_record('quiz', array('id' => $cm->instance))) {
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print_error('invalidcoursemodule');
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}
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// Get the course groups
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$groups = groups_get_all_groups($cm->course);
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if ($groups === false) {
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$groups = array();
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}
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// Default mode is "group", unless there are no groups
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if ($mode != "user" and $mode != "group") {
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if (!empty($groups)) {
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$mode = "group";
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} else {
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$mode = "user";
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}
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}
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$groupmode = ($mode == "group");
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$url = new moodle_url('/mod/quiz/overrides.php', array('cmid'=>$cm->id, 'mode'=>$mode));
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$PAGE->set_url($url);
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require_login($cm->course, false, $cm);
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$context = get_context_instance(CONTEXT_MODULE, $cm->id);
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// Check the user has the required capabilities to list overrides
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require_capability('mod/quiz:manageoverrides', $context);
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// Display a list of overrides
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$PAGE->set_title(get_string('overrides', 'quiz'));
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echo $OUTPUT->header();
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// Delete orphaned group overrides
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$sql = 'SELECT o.id
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FROM {quiz_overrides} o LEFT JOIN {groups} g
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ON o.groupid = g.id
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WHERE o.groupid IS NOT NULL
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AND g.id IS NULL
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AND o.quiz = ?';
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$params = array($quiz->id);
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$orphaned = $DB->get_records_sql($sql, $params);
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if (!empty($orphaned)) {
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$DB->delete_records_list('quiz_overrides', 'id', array_keys($orphaned));
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}
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// Fetch all overrides
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if ($groupmode) {
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$colname = get_string('group');
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$sql = 'SELECT o.*, g.name
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FROM {quiz_overrides} o JOIN {groups} g
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ON o.groupid = g.id
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WHERE o.quiz = ?
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ORDER BY g.name';
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}
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else {
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$colname = get_string('user');
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$sql = 'SELECT o.*, u.firstname, u.lastname, u.id as uid
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FROM {quiz_overrides} o JOIN {user} u
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ON o.userid = u.id
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WHERE o.quiz = ?
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ORDER BY u.lastname, u.firstname';
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}
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$params = array($quiz->id);
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$overrides = $DB->get_records_sql($sql, $params);
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// Print heading and tabs (if there is more than one).
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$currenttab = 'overrides';
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include('tabs.php');
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// Initialise table
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$table = new html_table();
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$table->headspan = array(1,2,1);
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$table->colclasses = array('colname','colsetting','colvalue','colaction');
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$table->head = array(
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$colname,
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get_string('overrides', 'quiz'),
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get_string('action'),
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);
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$userurl = new moodle_url('/user/view.php', array());
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$groupurl = new moodle_url('/group/overview.php', array('id' => $cm->course));
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$overridedeleteurl = new moodle_url('/mod/quiz/overridedelete.php');
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$overrideediturl = new moodle_url('/mod/quiz/overrideedit.php');
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$hasinactive = false; // are there any inactive overrides
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foreach ($overrides as $override) {
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$fields = array();
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$values = array();
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$active = true;
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// check for inactive overrides
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if (!$groupmode) {
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if (!has_capability('mod/quiz:attempt', $context, $override->userid)) {
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// user not allowed to take the quiz
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$active = false;
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} else if (!empty($CFG->enablegroupmembersonly) && $cm->groupmembersonly && !groups_has_membership($cm, $override->userid)) {
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// user does not belong to the current grouping
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$active = false;
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}
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}
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// Format timeopen
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if (isset($override->timeopen)) {
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$fields[] = get_string('quizopens', 'quiz');
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$values[] = ($override->timeopen > 0)? userdate($override->timeopen) : get_string('noopen', 'quiz');
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}
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// Format timeclose
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if (isset($override->timeclose)) {
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$fields[] = get_string('quizcloses', 'quiz');
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$values[] = ($override->timeclose > 0)? userdate($override->timeclose) : get_string('noclose', 'quiz');
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}
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// Format timelimit
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if (isset($override->timelimit)) {
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$fields[] = get_string('timelimit', 'quiz');
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$values[] = ($override->timelimit > 0)? format_time($override->timelimit) : get_string('none', 'quiz');
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}
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// Format number of attempts
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if (isset($override->attempts)) {
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$fields[] = get_string('attempts', 'quiz');
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$values[] = ($override->attempts > 0)? $override->attempts : get_string('unlimited');
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}
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// Format password
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if (isset($override->password)) {
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$fields[] = get_string('requirepassword', 'quiz');
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$values[] = ($override->password !== '')? get_string('enabled', 'quiz') : get_string('none', 'quiz');
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}
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// Icons:
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$iconstr = '';
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if ($active) {
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// edit
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$editurlstr = $overrideediturl->out(true, array('id' => $override->id));
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$iconstr = '<a title="' . get_string('edit') . '" href="'. $editurlstr . '">' .
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'<img src="' . $OUTPUT->pix_url('t/edit') . '" class="iconsmall" alt="' . get_string('edit') . '" /></a> ';
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// duplicate
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$copyurlstr = $overrideediturl->out(true, array('id' => $override->id, 'action' => 'duplicate'));
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$iconstr .= '<a title="' . get_string('copy') . '" href="' . $copyurlstr . '">' .
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'<img src="' . $OUTPUT->pix_url('t/copy') . '" class="iconsmall" alt="' . get_string('copy') . '" /></a> ';
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}
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// delete
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$deleteurlstr = $overridedeleteurl->out(true, array('id' => $override->id, 'sesskey' => sesskey()));
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$iconstr .= '<a title="' . get_string('delete') . '" href="' . $deleteurlstr . '">' .
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'<img src="' . $OUTPUT->pix_url('t/delete') . '" class="iconsmall" alt="' . get_string('delete') . '" /></a> ';
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if ($groupmode) {
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$usergroupstr = '<a href="' . $groupurl->out(true, array('group' => $override->groupid)) . '" >' . $override->name . '</a>';
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}
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else {
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$usergroupstr = '<a href="' . $userurl->out(true, array('id' => $override->userid)) . '" >' . fullname($override) . '</a>';
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}
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$class = '';
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if (!$active) {
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$class = "dimmed_text";
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$usergroupstr .= '*';
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$hasinactive = true;
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}
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$usergroupcell = new html_table_cell();
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$usergroupcell->rowspan = count($fields);
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$usergroupcell->text = $usergroupstr;
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$actioncell = new html_table_cell();
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$actioncell->rowspan = count($fields);
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$actioncell->text = $iconstr;
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for ($i = 0; $i < count($fields); ++$i) {
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$row = new html_table_row();
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$row->attributes['class'] = $class;
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if ($i == 0) {
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$row->cells[] = $usergroupcell;
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}
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$cell1 = new html_table_cell();
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$cell1->text = $fields[$i];
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$row->cells[] = $cell1;
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$cell2 = new html_table_cell();
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$cell2->text = $values[$i];
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$row->cells[] = $cell2;
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if ($i == 0) {
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$row->cells[] = $actioncell;
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}
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$table->data[] = $row;
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}
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}
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// Output the table and button
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echo html_writer::start_tag('div', array('id' => 'quizoverrides'));
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if (count($table->data)) {
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echo html_writer::table($table);
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}
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if ($hasinactive) {
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echo $OUTPUT->notification(get_string('inactiveoverridehelp', 'quiz'), 'dimmed_text');
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}
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echo html_writer::start_tag('div', array('class' => 'buttons'));
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$options = array();
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if ($groupmode) {
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if (empty($groups)) {
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// there are no groups
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echo $OUTPUT->notification(get_string('groupsnone', 'quiz'), 'error');
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$options['disabled'] = true;
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}
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echo $OUTPUT->single_button($overrideediturl->out(true, array('action' => 'addgroup', 'cmid' => $cm->id)),
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get_string('addnewgroupoverride', 'quiz'), 'post', $options);
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} else {
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$users = array();
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// See if there are any students in the quiz
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if (!empty($CFG->enablegroupmembersonly) && $cm->groupmembersonly) {
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// restrict to grouping
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$limitgroups = groups_get_all_groups($cm->course, 0, $cm->groupingid);
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if (!empty($limitgroups)) {
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$users = get_users_by_capability($context, 'mod/quiz:attempt', 'u.id', '', '', 1, array_keys($limitgroups)); // Limit to one user for speed
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} else {
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// empty grouping
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}
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} else {
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$users = get_users_by_capability($context, 'mod/quiz:attempt', 'u.id'); // Limit to one user for speed
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}
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if (empty($users)) {
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// there are no students
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echo $OUTPUT->notification(get_string('usersnone', 'quiz'), 'error');
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$options['disabled'] = true;
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}
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echo $OUTPUT->single_button($overrideediturl->out(true, array('action' => 'adduser', 'cmid' => $cm->id)),
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get_string('addnewuseroverride', 'quiz'), 'post', $options);
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}
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echo html_writer::end_tag('div');
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echo html_writer::end_tag('div');
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// Finish the page
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echo $OUTPUT->footer();
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