tag/edit.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 /**
  19  * @package    core_tag
  20  * @category   tag
  21  * @copyright  2007 Luiz Cruz <luiz.laydner@gmail.com>
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26 require_once('lib.php');
  27 require_once('edit_form.php');
  28
  29 $tagid = optional_param('id', 0, PARAM_INT);
  30 $tagname = optional_param('tag', '', PARAM_TAG);
  31 $returnurl = optional_param('returnurl', '', PARAM_LOCALURL);
  32
  33 require_login();
  34
  35 if (empty($CFG->usetags)) {
  36     throw new \moodle_exception('tagsaredisabled', 'tag');
  37 }
  38
  39 //Editing a tag requires moodle/tag:edit capability
  40 $systemcontext   = context_system::instance();
  41 require_capability('moodle/tag:edit', $systemcontext);
  42
  43 if ($tagname) {
  44     $tagcollid = optional_param('tc', 0, PARAM_INT);
  45     if (!$tagcollid) {
  46         // Tag name specified but tag collection was not. Try to guess it.
  47         $tags = core_tag_tag::guess_by_name($tagname, '*');
  48         if (count($tags) > 1) {
  49             // This tag was found in more than one collection, redirect to search.
  50             redirect(new moodle_url('/tag/search.php', array('tag' => $tagname)));
  51         } else if (count($tags) == 1) {
  52             $tag = reset($tags);
  53         }
  54     } else {
  55         if (!$tag = core_tag_tag::get_by_name($tagcollid, $tagname, '*')) {
  56             redirect(new moodle_url('/tag/search.php', array('tagcollid' => $tagcollid)));
  57         }
  58     }
  59 } else if ($tagid) {
  60     $tag = core_tag_tag::get($tagid, '*');
  61 }
  62
  63 if (empty($tag)) {
  64     redirect(new moodle_url('/tag/search.php'));
  65 }
  66
  67 $PAGE->set_url($tag->get_view_url());
  68 $PAGE->set_subpage($tag->id);
  69 $PAGE->set_context($systemcontext);
  70 $PAGE->set_blocks_editing_capability('moodle/tag:editblocks');
  71 $PAGE->set_pagelayout('standard');
  72
  73 $tagname = $tag->get_display_name();
  74 $tagcollid = $tag->tagcollid;
  75
  76 // set the relatedtags field of the $tag object that will be passed to the form
  77 $data = $tag->to_object();
  78 $data->relatedtags = core_tag_tag::get_item_tags_array('core', 'tag', $tag->id);
  79
  80 $options = new stdClass();
  81 $options->filter = false;
  82
  83 // convert and remove any XSS
  84 $data->description       = format_text($tag->description, $tag->descriptionformat, $options);
  85 $data->descriptionformat = FORMAT_HTML;
  86
  87 $errorstring = '';
  88
  89 $editoroptions = array(
  90     'maxfiles'  => EDITOR_UNLIMITED_FILES,
  91     'maxbytes'  => $CFG->maxbytes,
  92     'trusttext' => false,
  93     'context'   => $systemcontext,
  94     'subdirs'   => file_area_contains_subdirs($systemcontext, 'tag', 'description', $tag->id),
  95 );
  96 $data = file_prepare_standard_editor($data, 'description', $editoroptions, $systemcontext, 'tag', 'description', $data->id);
  97
  98 $tagform = new tag_edit_form(null, array('editoroptions' => $editoroptions, 'tag' => $tag));
  99 $data->returnurl = $returnurl;
 100
 101 $tagform->set_data($data);
 102
 103 if ($tagform->is_cancelled()) {
 104     redirect($returnurl ? new moodle_url($returnurl) : $tag->get_view_url());
 105 } else if ($tagnew = $tagform->get_data()) {
 106     // If new data has been sent, update the tag record.
 107     $updatedata = array();
 108
 109     if (has_capability('moodle/tag:manage', $systemcontext)) {
 110         $updatedata['isstandard'] = empty($tagnew->isstandard) ? 0 : 1;
 111         $updatedata['rawname'] = $tagnew->rawname;
 112     }
 113
 114     $tagnew = file_postupdate_standard_editor($tagnew, 'description', $editoroptions,
 115             $systemcontext, 'tag', 'description', $tag->id);
 116     $updatedata['description'] = $tagnew->description;
 117     $updatedata['descriptionformat'] = $tagnew->descriptionformat;
 118
 119     // Update name, description and whether it is a standard tag.
 120     $tag->update($updatedata);
 121
 122     // Updated related tags.
 123     $tag->set_related_tags($tagnew->relatedtags);
 124
 125     redirect($returnurl ? new moodle_url($returnurl) : $tag->get_view_url());
 126 }
 127
 128 navigation_node::override_active_url(new moodle_url('/tag/search.php'));
 129 $PAGE->navbar->add($tagname);
 130 $PAGE->navbar->add(get_string('edit'));
 131 $PAGE->set_title(get_string('tag', 'tag') . ' - '. $tagname);
 132 $PAGE->set_heading($COURSE->fullname);
 133 echo $OUTPUT->header();
 134 echo $OUTPUT->heading($tagname, 2);
 135
 136 if (!empty($errorstring)) {
 137     echo $OUTPUT->notification($errorstring);
 138 }
 139
 140 $tagform->display();
 141
 142 echo $OUTPUT->footer();