mod/quiz/overridedelete.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * This page handles deleting quiz overrides
  19  *
  20  * @package    mod_quiz
  21  * @copyright  2010 Matt Petro
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25
  26 require_once(__DIR__ . '/../../config.php');
  27 require_once($CFG->dirroot.'/mod/quiz/lib.php');
  28 require_once($CFG->dirroot.'/mod/quiz/locallib.php');
  29 require_once($CFG->dirroot.'/mod/quiz/override_form.php');
  30
  31 $overrideid = required_param('id', PARAM_INT);
  32 $confirm = optional_param('confirm', false, PARAM_BOOL);
  33
  34 if (! $override = $DB->get_record('quiz_overrides', array('id' => $overrideid))) {
  35     print_error('invalidoverrideid', 'quiz');
  36 }
  37 if (! $quiz = $DB->get_record('quiz', array('id' => $override->quiz))) {
  38     print_error('invalidcoursemodule');
  39 }
  40 if (! $cm = get_coursemodule_from_instance("quiz", $quiz->id, $quiz->course)) {
  41     print_error('invalidcoursemodule');
  42 }
  43 $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
  44
  45 $context = context_module::instance($cm->id);
  46
  47 require_login($course, false, $cm);
  48
  49 // Check the user has the required capabilities to modify an override.
  50 require_capability('mod/quiz:manageoverrides', $context);
  51
  52 if ($override->groupid) {
  53     if (!groups_group_visible($override->groupid, $course, $cm)) {
  54         print_error('invalidoverrideid', 'quiz');
  55     }
  56 } else {
  57     if (!groups_user_groups_visible($course, $override->userid, $cm)) {
  58         print_error('invalidoverrideid', 'quiz');
  59     }
  60 }
  61
  62 $url = new moodle_url('/mod/quiz/overridedelete.php', array('id'=>$override->id));
  63 $confirmurl = new moodle_url($url, array('id'=>$override->id, 'confirm'=>1));
  64 $cancelurl = new moodle_url('/mod/quiz/overrides.php', array('cmid'=>$cm->id));
  65
  66 if (!empty($override->userid)) {
  67     $cancelurl->param('mode', 'user');
  68 }
  69
  70 // If confirm is set (PARAM_BOOL) then we have confirmation of intention to delete.
  71 if ($confirm) {
  72     require_sesskey();
  73
  74     // Set the course module id before calling quiz_delete_override().
  75     $quiz->cmid = $cm->id;
  76     quiz_delete_override($quiz, $override->id);
  77
  78     redirect($cancelurl);
  79 }
  80
  81 // Prepare the page to show the confirmation form.
  82 $stroverride = get_string('override', 'quiz');
  83 $title = get_string('deletecheck', null, $stroverride);
  84
  85 $PAGE->set_url($url);
  86 $PAGE->set_pagelayout('admin');
  87 $PAGE->navbar->add($title);
  88 $PAGE->set_title($title);
  89 $PAGE->set_heading($course->fullname);
  90
  91 echo $OUTPUT->header();
  92 echo $OUTPUT->heading(format_string($quiz->name, true, array('context' => $context)));
  93
  94 if ($override->groupid) {
  95     $group = $DB->get_record('groups', array('id' => $override->groupid), 'id, name');
  96     $confirmstr = get_string("overridedeletegroupsure", "quiz", $group->name);
  97 } else {
  98     $namefields = get_all_user_name_fields(true);
  99     $user = $DB->get_record('user', array('id' => $override->userid),
 100             'id, ' . $namefields);
 101     $confirmstr = get_string("overridedeleteusersure", "quiz", fullname($user));
 102 }
 103
 104 echo $OUTPUT->confirm($confirmstr, $confirmurl, $cancelurl);
 105
 106 echo $OUTPUT->footer();