blog/edit_form.php

   1 <?php
   2
   3 // This file is part of Moodle - http://moodle.org/
   4 //
   5 // Moodle is free software: you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation, either version 3 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // Moodle is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 if (!defined('MOODLE_INTERNAL')) {
  19     die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
  20 }
  21
  22 require_once($CFG->libdir.'/formslib.php');
  23
  24 class blog_edit_form extends moodleform {
  25     public $modnames = array();
  26
  27     function definition() {
  28         global $CFG, $DB;
  29
  30         $mform =& $this->_form;
  31
  32         $entry = $this->_customdata['entry'];
  33         $courseid = $this->_customdata['courseid'];
  34         $modid = $this->_customdata['modid'];
  35         $summaryoptions = $this->_customdata['summaryoptions'];
  36         $attachmentoptions = $this->_customdata['attachmentoptions'];
  37         $sitecontext = $this->_customdata['sitecontext'];
  38
  39         $mform->addElement('header', 'general', get_string('general', 'form'));
  40
  41         $mform->addElement('text', 'subject', get_string('entrytitle', 'blog'), 'size="60"');
  42         $mform->addElement('editor', 'summary_editor', get_string('entrybody', 'blog'), null, $summaryoptions);
  43
  44         $mform->setType('subject', PARAM_TEXT);
  45         $mform->addRule('subject', get_string('emptytitle', 'blog'), 'required', null, 'client');
  46
  47         $mform->setType('summary_editor', PARAM_RAW);
  48         $mform->addRule('summary_editor', get_string('emptybody', 'blog'), 'required', null, 'client');
  49
  50         $mform->addElement('filemanager', 'attachment_filemanager', get_string('attachment', 'forum'), null, $attachmentoptions);
  51
  52         //disable publishstate options that are not allowed
  53         $publishstates = array();
  54         $i = 0;
  55
  56         foreach (blog_entry::get_applicable_publish_states() as $state => $desc) {
  57             $publishstates[$state] = $desc;   //no maximum was set
  58             $i++;
  59         }
  60
  61         $mform->addElement('select', 'publishstate', get_string('publishto', 'blog'), $publishstates);
  62         $mform->addHelpButton('publishstate', 'publishto', 'blog');
  63         $mform->setDefault('publishstate', 0);
  64
  65         if (!empty($CFG->usetags)) {
  66             $mform->addElement('header', 'tagshdr', get_string('tags', 'tag'));
  67             $mform->addElement('tags', 'tags', get_string('tags'));
  68         }
  69
  70         $allmodnames = array();
  71
  72         if (!empty($CFG->useblogassociations)) {
  73             if ((!empty($entry->courseassoc) || (!empty($courseid) && empty($modid))) && has_capability('moodle/blog:associatecourse', $sitecontext)) {
  74                 if (!empty($courseid)) {
  75                     $course = $DB->get_record('course', array('id' => $courseid));
  76                     $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
  77                     $context = get_context_instance(CONTEXT_COURSE, $courseid);
  78                     $a = new stdClass();
  79                     $a->coursename = format_string($course->fullname, true, array('context' => $context));
  80                     $contextid = $context->id;
  81                 } else {
  82                     $sql = 'SELECT fullname FROM {course} cr LEFT JOIN {context} ct ON ct.instanceid = cr.id WHERE ct.id = ?';
  83                     $a = new stdClass();
  84                     $a->coursename = $DB->get_field_sql($sql, array($entry->courseassoc));
  85                     $contextid = $entry->courseassoc;
  86                 }
  87
  88                 $mform->addElement('advcheckbox', 'courseassoc', get_string('associatewithcourse', 'blog', $a), null, null, array(0, $contextid));
  89                 $mform->setDefault('courseassoc', $contextid);
  90             } else if ((!empty($entry->modassoc) || !empty($modid)) && has_capability('moodle/blog:associatemodule', $sitecontext)) {
  91                 if (!empty($modid)) {
  92                     $mod = get_coursemodule_from_id(false, $modid);
  93                     $a = new stdClass();
  94                     $a->modtype = get_string('modulename', $mod->modname);
  95                     $a->modname = $mod->name;
  96                     $context = get_context_instance(CONTEXT_MODULE, $modid);
  97                 } else {
  98                     $context = $DB->get_record('context', array('id' => $entry->modassoc));
  99                     $cm = $DB->get_record('course_modules', array('id' => $context->instanceid));
 100                     $a = new stdClass();
 101                     $a->modtype = $DB->get_field('modules', 'name', array('id' => $cm->module));
 102                     $a->modname = $DB->get_field($a->modtype, 'name', array('id' => $cm->instance));
 103                 }
 104
 105                 $mform->addElement('header', 'assochdr', get_string('associations', 'blog'));
 106                 $mform->addElement('advcheckbox', 'modassoc', get_string('associatewithmodule', 'blog', $a), null, null, array(0, $context->id));
 107                 $mform->setDefault('modassoc', $context->id);
 108             }
 109         }
 110
 111         $this->add_action_buttons();
 112         $mform->addElement('hidden', 'action');
 113         $mform->setType('action', PARAM_ACTION);
 114         $mform->setDefault('action', '');
 115
 116         $mform->addElement('hidden', 'entryid');
 117         $mform->setType('entryid', PARAM_INT);
 118         $mform->setDefault('entryid', $entry->id);
 119
 120         $mform->addElement('hidden', 'modid');
 121         $mform->setType('modid', PARAM_INT);
 122         $mform->setDefault('modid', $modid);
 123
 124         $mform->addElement('hidden', 'courseid');
 125         $mform->setType('courseid', PARAM_INT);
 126         $mform->setDefault('courseid', $courseid);
 127     }
 128
 129     function validation($data, $files) {
 130         global $CFG, $DB, $USER;
 131
 132         $errors = array();
 133         $sitecontext = get_context_instance(CONTEXT_SYSTEM);
 134
 135         // validate course association
 136         if (!empty($data['courseassoc']) && has_capability('moodle/blog:associatecourse', $sitecontext)) {
 137             $coursecontext = $DB->get_record('context', array('id' => $data['courseassoc'], 'contextlevel' => CONTEXT_COURSE));
 138
 139             if ($coursecontext)  {
 140                 if (!is_enrolled($coursecontext) and !is_viewing($coursecontext)) {
 141                     $errors['courseassoc'] = get_string('studentnotallowed', '', fullname($USER, true));
 142                 }
 143             } else {
 144                 $errors['courseassoc'] = get_string('invalidcontextid', 'blog');
 145             }
 146         }
 147
 148         // validate mod association
 149         if (!empty($data['modassoc'])) {
 150             $modcontextid = $data['modassoc'];
 151
 152             $modcontext = $DB->get_record('context', array('id' => $modcontextid, 'contextlevel' => CONTEXT_MODULE));
 153
 154             if ($modcontext) {
 155                 // get context of the mod's course
 156                 $path = explode('/', $modcontext->path);
 157                 $coursecontext = $DB->get_record('context', array('id' => $path[(count($path) - 2)]));
 158
 159                 // ensure only one course is associated
 160                 if (!empty($data['courseassoc'])) {
 161                     if ($data['courseassoc'] != $coursecontext->id) {
 162                         $errors['modassoc'] = get_string('onlyassociateonecourse', 'blog');
 163                     }
 164                 } else {
 165                     $data['courseassoc'] = $coursecontext->id;
 166                 }
 167
 168                 // ensure the user has access to each mod's course
 169                 if (!is_enrolled($modcontext) and !is_viewing($modcontext)) {
 170                     $errors['modassoc'] = get_string('studentnotallowed', '', fullname($USER, true));
 171                 }
 172             } else {
 173                 $errors['modassoc'] = get_string('invalidcontextid', 'blog');
 174             }
 175         }
 176
 177         if ($errors) {
 178             return $errors;
 179         }
 180         return true;
 181     }
 182 }