course/reset_form.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  * Provides the course_reset_form class.
  19  *
  20  * @package     core
  21  * @copyright   2007 Petr Skoda
  22  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 require_once $CFG->libdir.'/formslib.php';
  28 require_once($CFG->dirroot . '/course/lib.php');
  29
  30 /**
  31  * Defines the course reset settings form.
  32  *
  33  * @copyright   2007 Petr Skoda
  34  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35  */
  36 class course_reset_form extends moodleform {
  37     function definition (){
  38         global $CFG, $COURSE, $DB;
  39
  40         $mform =& $this->_form;
  41
  42         $mform->addElement('header', 'generalheader', get_string('general'));
  43
  44         $mform->addElement('date_selector', 'reset_start_date', get_string('startdate'), array('optional'=>true));
  45         $mform->addHelpButton('reset_start_date', 'startdate');
  46         $mform->addElement('date_selector', 'reset_end_date', get_string('enddate'), array('optional' => true));
  47         $mform->addHelpButton('reset_end_date', 'enddate');
  48         $mform->addElement('checkbox', 'reset_events', get_string('deleteevents', 'calendar'));
  49         $mform->addElement('checkbox', 'reset_notes', get_string('deletenotes', 'notes'));
  50         $mform->addElement('checkbox', 'reset_comments', get_string('deleteallcomments', 'moodle'));
  51         $mform->addElement('checkbox', 'reset_completion', get_string('deletecompletiondata', 'completion'));
  52         $mform->addElement('checkbox', 'delete_blog_associations', get_string('deleteblogassociations', 'blog'));
  53         $mform->addHelpButton('delete_blog_associations', 'deleteblogassociations', 'blog');
  54         $mform->addElement('checkbox', 'reset_competency_ratings', get_string('deletecompetencyratings', 'core_competency'));
  55
  56         $mform->addElement('header', 'rolesheader', get_string('roles'));
  57
  58         $roles = get_assignable_roles(context_course::instance($COURSE->id));
  59         $roles[0] = get_string('noroles', 'role');
  60         $roles = array_reverse($roles, true);
  61
  62         $mform->addElement('select', 'unenrol_users', get_string('unenrolroleusers', 'enrol'), $roles, array('multiple' => 'multiple'));
  63         $mform->addElement('checkbox', 'reset_roles_overrides', get_string('deletecourseoverrides', 'role'));
  64         $mform->setAdvanced('reset_roles_overrides');
  65         $mform->addElement('checkbox', 'reset_roles_local', get_string('deletelocalroles', 'role'));
  66
  67
  68         $mform->addElement('header', 'gradebookheader', get_string('gradebook', 'grades'));
  69
  70         $mform->addElement('checkbox', 'reset_gradebook_items', get_string('removeallcourseitems', 'grades'));
  71         $mform->addHelpButton('reset_gradebook_items', 'removeallcourseitems', 'grades');
  72         $mform->addElement('checkbox', 'reset_gradebook_grades', get_string('removeallcoursegrades', 'grades'));
  73         $mform->addHelpButton('reset_gradebook_grades', 'removeallcoursegrades', 'grades');
  74         $mform->disabledIf('reset_gradebook_grades', 'reset_gradebook_items', 'checked');
  75
  76
  77         $mform->addElement('header', 'groupheader', get_string('groups'));
  78
  79         $mform->addElement('checkbox', 'reset_groups_remove', get_string('deleteallgroups', 'group'));
  80         $mform->setAdvanced('reset_groups_remove');
  81         $mform->addElement('checkbox', 'reset_groups_members', get_string('removegroupsmembers', 'group'));
  82         $mform->setAdvanced('reset_groups_members');
  83         $mform->disabledIf('reset_groups_members', 'reset_groups_remove', 'checked');
  84
  85         $mform->addElement('checkbox', 'reset_groupings_remove', get_string('deleteallgroupings', 'group'));
  86         $mform->setAdvanced('reset_groupings_remove');
  87         $mform->addElement('checkbox', 'reset_groupings_members', get_string('removegroupingsmembers', 'group'));
  88         $mform->setAdvanced('reset_groupings_members');
  89         $mform->disabledIf('reset_groupings_members', 'reset_groupings_remove', 'checked');
  90
  91         $unsupported_mods = array();
  92         if ($allmods = $DB->get_records('modules') ) {
  93             foreach ($allmods as $mod) {
  94                 $modname = $mod->name;
  95                 $modfile = $CFG->dirroot."/mod/$modname/lib.php";
  96                 $mod_reset_course_form_definition = $modname.'_reset_course_form_definition';
  97                 $mod_reset__userdata = $modname.'_reset_userdata';
  98                 if (file_exists($modfile)) {
  99                     if (!$DB->count_records($modname, array('course'=>$COURSE->id))) {
 100                         continue; // Skip mods with no instances
 101                     }
 102                     include_once($modfile);
 103                     if (function_exists($mod_reset_course_form_definition)) {
 104                         $mod_reset_course_form_definition($mform);
 105                     } else if (!function_exists($mod_reset__userdata)) {
 106                         $unsupported_mods[] = $mod;
 107                     }
 108                 } else {
 109                     debugging('Missing lib.php in '.$modname.' module');
 110                 }
 111             }
 112         }
 113         // mention unsupported mods
 114         if (!empty($unsupported_mods)) {
 115             $mform->addElement('header', 'unsupportedheader', get_string('resetnotimplemented'));
 116             foreach($unsupported_mods as $mod) {
 117                 $mform->addElement('static', 'unsup'.$mod->name, get_string('modulenameplural', $mod->name));
 118                 $mform->setAdvanced('unsup'.$mod->name);
 119             }
 120         }
 121
 122         $mform->addElement('hidden', 'id', $COURSE->id);
 123         $mform->setType('id', PARAM_INT);
 124
 125         $buttonarray = array();
 126         $buttonarray[] = &$mform->createElement('submit', 'submitbutton', get_string('resetcourse'));
 127         $buttonarray[] = &$mform->createElement('submit', 'selectdefault', get_string('selectdefault'));
 128         $buttonarray[] = &$mform->createElement('submit', 'deselectall', get_string('deselectall'));
 129         $buttonarray[] = &$mform->createElement('cancel');
 130         $mform->addGroup($buttonarray, 'buttonar', '', array(' '), false);
 131         $mform->closeHeaderBefore('buttonar');
 132     }
 133
 134     function load_defaults() {
 135         global $CFG, $COURSE, $DB;
 136
 137         $mform =& $this->_form;
 138
 139         $defaults = array ('reset_events'=>1, 'reset_roles_local'=>1, 'reset_gradebook_grades'=>1, 'reset_notes'=>1);
 140
 141         // Set student as default in unenrol user list, if role with student archetype exist.
 142         if ($studentrole = get_archetype_roles('student')) {
 143             $defaults['unenrol_users'] = array_keys($studentrole);
 144         }
 145
 146         if ($allmods = $DB->get_records('modules') ) {
 147             foreach ($allmods as $mod) {
 148                 $modname = $mod->name;
 149                 $modfile = $CFG->dirroot."/mod/$modname/lib.php";
 150                 $mod_reset_course_form_defaults = $modname.'_reset_course_form_defaults';
 151                 if (file_exists($modfile)) {
 152                     @include_once($modfile);
 153                     if (function_exists($mod_reset_course_form_defaults)) {
 154                         if ($moddefs = $mod_reset_course_form_defaults($COURSE)) {
 155                             $defaults = $defaults + $moddefs;
 156                         }
 157                     }
 158                 }
 159             }
 160         }
 161
 162         foreach ($defaults as $element=>$default) {
 163             $mform->setDefault($element, $default);
 164         }
 165     }
 166
 167     /**
 168      * Validation.
 169      *
 170      * @param array $data
 171      * @param array $files
 172      * @return array the errors that were found
 173      */
 174     public function validation($data, $files) {
 175         global $DB;
 176
 177         $course = get_course($data['id']);
 178
 179         $errors = parent::validation($data, $files);
 180
 181         // We check the values that would be used as start and end.
 182         if ($data['reset_start_date'] != 0) {
 183             $coursedata['startdate'] = $data['reset_start_date'];
 184         } else {
 185             $coursedata['startdate'] = $course->startdate;
 186         }
 187
 188         if ($data['reset_end_date'] != 0) {
 189             // End date set by the user has preference.
 190             $coursedata['enddate'] = $data['reset_end_date'];
 191         } else if ($data['reset_start_date'] > 0 && $course->enddate != 0) {
 192             // Otherwise, if the current course enddate is set, reset_course_userdata will add the start date time shift to it.
 193             $timeshift = $data['reset_start_date'] - usergetmidnight($course->startdate);
 194             $coursedata['enddate'] = $course->enddate + $timeshift;
 195         } else {
 196             $coursedata['enddate'] = $course->enddate;
 197         }
 198
 199         if ($errorcode = course_validate_dates($coursedata)) {
 200             $errors['reset_end_date'] = get_string($errorcode, 'error');
 201         }
 202
 203         return $errors;
 204     }
 205
 206 }