tag/edit.php

   1 <?php // $Id$
   2
   3 require_once('../config.php');
   4 require_once('lib.php');
   5 require_once('edit_form.php');
   6
   7 require_js(array('yui_dom-event', 'yui_connection', 'yui_animation', 'yui_autocomplete'));
   8
   9 require_login();
  10
  11 if (empty($CFG->usetags)) {
  12     print_error('tagsaredisabled', 'tag');
  13 }
  14
  15 $tag_id = optional_param('id', 0, PARAM_INT);
  16 $tag_name = optional_param('tag', '', PARAM_TAG);
  17
  18 if ($tag_name) {
  19     $tag = tag_get('name', $tag_name, '*');
  20 } else if ($tag_id) {
  21     $tag = tag_get('id', $tag_id, '*');
  22 }
  23
  24 if (empty($tag)) {
  25     redirect($CFG->wwwroot.'/tag/search.php');
  26 }
  27
  28 $tagname = tag_display_name($tag);
  29
  30 //Editing a tag requires moodle/tag:edit capability
  31 $systemcontext   = get_context_instance(CONTEXT_SYSTEM);
  32 require_capability('moodle/tag:edit', $systemcontext);
  33
  34 // set the relatedtags field of the $tag object that will be passed to the form
  35 // need to use html_entity_decode because formslib does it for us later on.
  36 $tag->relatedtags = html_entity_decode(tag_get_related_tags_csv(tag_get_related_tags($tag->id, TAG_RELATED_MANUAL), TAG_RETURN_TEXT));
  37
  38 if (can_use_html_editor()) {
  39     $options = new object();
  40     $options->smiley = false;
  41     $options->filter = false;
  42
  43     // convert and remove any XSS
  44     $tag->description       = format_text($tag->description, $tag->descriptionformat, $options);
  45     $tag->descriptionformat = FORMAT_HTML;
  46 }
  47
  48 $errorstring = '';
  49
  50 $tagform = new tag_edit_form();
  51 if ( $tag->tagtype == 'official' ) {
  52     $tag->tagtype = '1';
  53 } else {
  54     $tag->tagtype = '0';
  55 }
  56 $tagform->set_data($tag);
  57
  58 // If new data has been sent, update the tag record
  59 if ($tagnew = $tagform->get_data()) {
  60
  61     tag_description_set($tag_id, stripslashes($tagnew->description), $tagnew->descriptionformat);
  62
  63     if (has_capability('moodle/tag:manage', $systemcontext)) {
  64         if (($tag->tagtype != 'default') && (!isset($tagnew->tagtype) || ($tagnew->tagtype != '1'))) {
  65             tag_type_set($tag->id, 'default');
  66
  67         } elseif (($tag->tagtype != 'official') && ($tagnew->tagtype == '1')) {
  68             tag_type_set($tag->id, 'official');
  69         }
  70     }
  71
  72     if (!has_capability('moodle/tag:manage', $systemcontext) && !has_capability('moodle/tag:edit', $systemcontext)) {
  73         unset($tagnew->name);
  74         unset($tagnew->rawname);
  75
  76     } else {  // They might be trying to change the rawname, make sure it's a change that doesn't affect name
  77         $tagnew->name = array_shift(tag_normalize($tagnew->rawname, TAG_CASE_LOWER));
  78
  79         if ($tag->name != $tagnew->name) {  // The name has changed, let's make sure it's not another existing tag
  80             if (tag_get_id($tagnew->name)) {   // Something exists already, so flag an error
  81                 $errorstring = s($tagnew->rawname).': '.get_string('namesalreadybeeingused', 'tag');
  82             }
  83         }
  84     }
  85
  86     if (empty($errorstring)) {    // All is OK, let's save it
  87
  88         $tagnew->timemodified = time();
  89
  90         if (has_capability('moodle/tag:manage', $systemcontext)) {
  91             // rename tag
  92             if(!tag_rename($tag->id, $tagnew->rawname)) {
  93                 error('Error updating tag record');
  94             }
  95         }
  96
  97         //updated related tags
  98         tag_set('tag', $tagnew->id, explode(',', trim($tagnew->relatedtags)));
  99         //print_object($tagnew); die();
 100
 101         redirect($CFG->wwwroot.'/tag/index.php?tag='.rawurlencode($tag->name)); // must use $tag here, as the name isn't in the edit form
 102     }
 103 }
 104
 105
 106 $navlinks = array();
 107 $navlinks[] = array('name' => get_string('tags', 'tag'), 'link' => "{$CFG->wwwroot}/tag/search.php", 'type' => '');
 108 $navlinks[] = array('name' => $tagname, 'link' => '', 'type' => '');
 109
 110 $navigation = build_navigation($navlinks);
 111 print_header_simple(get_string('tag', 'tag') . ' - '. $tagname, '', $navigation);
 112
 113 print_heading($tagname, '', 2);
 114
 115 if (!empty($errorstring)) {
 116     notify($errorstring);
 117 }
 118
 119 $tagform->display();
 120
 121 if (ajaxenabled()) {
 122 ?>
 123
 124 <script type="text/javascript">
 125
 126 // An XHR DataSource
 127 var myServer = "./tag_autocomplete.php";
 128 var myDataSource = new YAHOO.widget.DS_XHR(myServer, ["\n", "\t"]);
 129 myDataSource.responseType = YAHOO.widget.DS_XHR.TYPE_FLAT;
 130 myDataSource.maxCacheEntries = 60;
 131 myDataSource.queryMatchSubset = true;
 132
 133 var myAutoComp = new YAHOO.widget.AutoComplete("id_relatedtags","relatedtags-autocomplete", myDataSource);
 134 myAutoComp.delimChar = ",";
 135 myAutoComp.maxResultsDisplayed = 20;
 136 myAutoComp.minQueryLength = 2;
 137 myAutoComp.allowBrowserAutocomplete = false;
 138 myAutoComp.formatResult = function(aResultItem, sQuery) {
 139     return aResultItem[1];
 140 }
 141 </script>
 142
 143 <?php
 144 }
 145 print_footer();
 146
 147 ?>