MDL-46350 blog: call parent validation
[moodle.git] / blog / edit_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/>.
17 if (!defined('MOODLE_INTERNAL')) {
18     die('Direct access to this script is forbidden.');    //  It must be included from a Moodle page.
19 }
21 require_once($CFG->libdir.'/formslib.php');
23 class blog_edit_form extends moodleform {
24     public $modnames = array();
26     /**
27      * Blog form definition.
28      */
29     public function definition() {
30         global $CFG, $DB;
32         $mform =& $this->_form;
34         $entry = $this->_customdata['entry'];
35         $courseid = $this->_customdata['courseid'];
36         $modid = $this->_customdata['modid'];
37         $summaryoptions = $this->_customdata['summaryoptions'];
38         $attachmentoptions = $this->_customdata['attachmentoptions'];
39         $sitecontext = $this->_customdata['sitecontext'];
41         $mform->addElement('header', 'general', get_string('general', 'form'));
43         $mform->addElement('text', 'subject', get_string('entrytitle', 'blog'), array('size' => 60, 'maxlength' => 128));
44         $mform->addElement('editor', 'summary_editor', get_string('entrybody', 'blog'), null, $summaryoptions);
46         $mform->setType('subject', PARAM_TEXT);
47         $mform->addRule('subject', get_string('emptytitle', 'blog'), 'required', null, 'client');
48         $mform->addRule('subject', get_string('maximumchars', '', 128), 'maxlength', 128, 'client');
50         $mform->setType('summary_editor', PARAM_RAW);
51         $mform->addRule('summary_editor', get_string('emptybody', 'blog'), 'required', null, 'client');
53         $mform->addElement('filemanager', 'attachment_filemanager', get_string('attachment', 'forum'), null, $attachmentoptions);
55         // Disable publishstate options that are not allowed.
56         $publishstates = array();
57         $i = 0;
59         foreach (blog_entry::get_applicable_publish_states() as $state => $desc) {
60             $publishstates[$state] = $desc;   // No maximum was set.
61             $i++;
62         }
64         $mform->addElement('select', 'publishstate', get_string('publishto', 'blog'), $publishstates);
65         $mform->addHelpButton('publishstate', 'publishto', 'blog');
66         $mform->setDefault('publishstate', 0);
68         if (!empty($CFG->usetags)) {
69             $mform->addElement('header', 'tagshdr', get_string('tags', 'tag'));
70             $mform->addElement('tags', 'tags', get_string('tags'));
71         }
73         $allmodnames = array();
75         if (!empty($CFG->useblogassociations)) {
76             if ((!empty($entry->courseassoc) || (!empty($courseid) && empty($modid)))) {
77                 if (!empty($courseid)) {
78                     $course = $DB->get_record('course', array('id' => $courseid));
79                     $context = context_course::instance($courseid);
80                     $a = new stdClass();
81                     $a->coursename = format_string($course->fullname, true, array('context' => $context));
82                     $contextid = $context->id;
83                 } else {
84                     $context = context::instance_by_id($entry->courseassoc);
85                     $sql = 'SELECT fullname FROM {course} cr LEFT JOIN {context} ct ON ct.instanceid = cr.id WHERE ct.id = ?';
86                     $a = new stdClass();
87                     $a->coursename = $DB->get_field_sql($sql, array($entry->courseassoc));
88                     $contextid = $entry->courseassoc;
89                 }
91                 $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
92                 $mform->addElement('advcheckbox',
93                                    'courseassoc',
94                                    get_string('associatewithcourse', 'blog', $a),
95                                    null,
96                                    null,
97                                    array(0, $contextid));
98                 $mform->setDefault('courseassoc', $contextid);
100             } else if ((!empty($entry->modassoc) || !empty($modid))) {
101                 if (!empty($modid)) {
102                     $mod = get_coursemodule_from_id(false, $modid);
103                     $a = new stdClass();
104                     $a->modtype = get_string('modulename', $mod->modname);
105                     $a->modname = $mod->name;
106                     $context = context_module::instance($modid);
107                 } else {
108                     $context = context::instance_by_id($entry->modassoc);
109                     $cm = $DB->get_record('course_modules', array('id' => $context->instanceid));
110                     $a = new stdClass();
111                     $a->modtype = $DB->get_field('modules', 'name', array('id' => $cm->module));
112                     $a->modname = $DB->get_field($a->modtype, 'name', array('id' => $cm->instance));
113                     $modid = $context->instanceid;
114                 }
116                 $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
117                 $mform->addElement('advcheckbox',
118                                    'modassoc',
119                                    get_string('associatewithmodule', 'blog', $a),
120                                    null,
121                                    null,
122                                    array(0, $context->id));
123                 $mform->setDefault('modassoc', $context->id);
124             }
125         }
127         $this->add_action_buttons();
128         $mform->addElement('hidden', 'action');
129         $mform->setType('action', PARAM_ALPHANUMEXT);
130         $mform->setDefault('action', '');
132         $mform->addElement('hidden', 'entryid');
133         $mform->setType('entryid', PARAM_INT);
134         $mform->setDefault('entryid', $entry->id);
136         $mform->addElement('hidden', 'modid');
137         $mform->setType('modid', PARAM_INT);
138         $mform->setDefault('modid', $modid);
140         $mform->addElement('hidden', 'courseid');
141         $mform->setType('courseid', PARAM_INT);
142         $mform->setDefault('courseid', $courseid);
143     }
145     /**
146      * Validate the blog form data.
147      * @param array $data Data to be validated
148      * @param array $files unused
149      * @return array|bool
150      */
151     public function validation($data, $files) {
152         global $CFG, $DB, $USER;
154         $errors = parent::validation($data, $files);
156         // Validate course association.
157         if (!empty($data['courseassoc'])) {
158             $coursecontext = context::instance_by_id($data['courseassoc']);
160             if ($coursecontext->contextlevel != CONTEXT_COURSE) {
161                 $errors['courseassoc'] = get_string('error');
162             }
163         }
165         // Validate mod association.
166         if (!empty($data['modassoc'])) {
167             $modcontextid = $data['modassoc'];
168             $modcontext = context::instance_by_id($modcontextid);
170             if ($modcontext->contextlevel == CONTEXT_MODULE) {
171                 // Get context of the mod's course.
172                 $coursecontext = $modcontext->get_course_context(true);
174                 // Ensure only one course is associated.
175                 if (!empty($data['courseassoc'])) {
176                     if ($data['courseassoc'] != $coursecontext->id) {
177                         $errors['modassoc'] = get_string('onlyassociateonecourse', 'blog');
178                     }
179                 } else {
180                     $data['courseassoc'] = $coursecontext->id;
181                 }
182             } else {
183                 $errors['modassoc'] = get_string('error');
184             }
185         }
187         if ($errors) {
188             return $errors;
189         }
190         return true;
191     }