Merge branch 'MDL-66230' of https://github.com/paulholden/moodle
[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 (core_tag_tag::is_enabled('core', 'post')) {
69             $mform->addElement('header', 'tagshdr', get_string('tags', 'tag'));
70         }
71         $mform->addElement('tags', 'tags', get_string('tags'),
72                 array('itemtype' => 'post', 'component' => 'core'));
74         $allmodnames = array();
76         if (!empty($CFG->useblogassociations)) {
77             if ((!empty($entry->courseassoc) || (!empty($courseid) && empty($modid)))) {
78                 if (!empty($courseid)) {
79                     $course = $DB->get_record('course', array('id' => $courseid));
80                     $context = context_course::instance($courseid);
81                     $a = new stdClass();
82                     $a->coursename = format_string($course->fullname, true, array('context' => $context));
83                     $contextid = $context->id;
84                 } else {
85                     $context = context::instance_by_id($entry->courseassoc);
86                     $sql = 'SELECT fullname FROM {course} cr LEFT JOIN {context} ct ON ct.instanceid = cr.id WHERE ct.id = ?';
87                     $a = new stdClass();
88                     $a->coursename = $DB->get_field_sql($sql, array($entry->courseassoc));
89                     $contextid = $entry->courseassoc;
90                 }
92                 $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
93                 $mform->addElement('advcheckbox',
94                                    'courseassoc',
95                                    get_string('associatewithcourse', 'blog', $a),
96                                    null,
97                                    null,
98                                    array(0, $contextid));
99                 $mform->setDefault('courseassoc', $contextid);
101             } else if ((!empty($entry->modassoc) || !empty($modid))) {
102                 if (!empty($modid)) {
103                     $mod = get_coursemodule_from_id(false, $modid);
104                     $a = new stdClass();
105                     $a->modtype = get_string('modulename', $mod->modname);
106                     $a->modname = $mod->name;
107                     $context = context_module::instance($modid);
108                 } else {
109                     $context = context::instance_by_id($entry->modassoc);
110                     $cm = $DB->get_record('course_modules', array('id' => $context->instanceid));
111                     $a = new stdClass();
112                     $a->modtype = $DB->get_field('modules', 'name', array('id' => $cm->module));
113                     $a->modname = $DB->get_field($a->modtype, 'name', array('id' => $cm->instance));
114                     $modid = $context->instanceid;
115                 }
117                 $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
118                 $mform->addElement('advcheckbox',
119                                    'modassoc',
120                                    get_string('associatewithmodule', 'blog', $a),
121                                    null,
122                                    null,
123                                    array(0, $context->id));
124                 $mform->setDefault('modassoc', $context->id);
125             }
126         }
128         $this->add_action_buttons();
129         $mform->addElement('hidden', 'action');
130         $mform->setType('action', PARAM_ALPHANUMEXT);
131         $mform->setDefault('action', '');
133         $mform->addElement('hidden', 'entryid');
134         $mform->setType('entryid', PARAM_INT);
135         $mform->setDefault('entryid', $entry->id);
137         $mform->addElement('hidden', 'modid');
138         $mform->setType('modid', PARAM_INT);
139         $mform->setDefault('modid', $modid);
141         $mform->addElement('hidden', 'courseid');
142         $mform->setType('courseid', PARAM_INT);
143         $mform->setDefault('courseid', $courseid);
144     }
146     /**
147      * Validate the blog form data.
148      * @param array $data Data to be validated
149      * @param array $files unused
150      * @return array|bool
151      */
152     public function validation($data, $files) {
153         global $CFG, $DB, $USER;
155         $errors = parent::validation($data, $files);
157         // Validate course association.
158         if (!empty($data['courseassoc'])) {
159             $coursecontext = context::instance_by_id($data['courseassoc']);
161             if ($coursecontext->contextlevel != CONTEXT_COURSE) {
162                 $errors['courseassoc'] = get_string('error');
163             }
164         }
166         // Validate mod association.
167         if (!empty($data['modassoc'])) {
168             $modcontextid = $data['modassoc'];
169             $modcontext = context::instance_by_id($modcontextid);
171             if ($modcontext->contextlevel == CONTEXT_MODULE) {
172                 // Get context of the mod's course.
173                 $coursecontext = $modcontext->get_course_context(true);
175                 // Ensure only one course is associated.
176                 if (!empty($data['courseassoc'])) {
177                     if ($data['courseassoc'] != $coursecontext->id) {
178                         $errors['modassoc'] = get_string('onlyassociateonecourse', 'blog');
179                     }
180                 } else {
181                     $data['courseassoc'] = $coursecontext->id;
182                 }
183             } else {
184                 $errors['modassoc'] = get_string('error');
185             }
186         }
188         if ($errors) {
189             return $errors;
190         }
191         return true;
192     }