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 $tag->relatedtags = tag_get_related_tags_csv(tag_get_related_tags($tag->id, TAG_RELATED_MANUAL), TAG_RETURN_TEXT);
  36
  37 if (can_use_html_editor()) {
  38     $options = new object();
  39     $options->smiley = false;
  40     $options->filter = false;
  41
  42     // convert and remove any XSS
  43     $tag->description       = format_text($tag->description, $tag->descriptionformat, $options);
  44     $tag->descriptionformat = FORMAT_HTML;
  45 }
  46
  47 $errorstring = '';
  48
  49 $tagform = new tag_edit_form();
  50 if ( $tag->tagtype == 'official' ) {
  51     $tag->tagtype = '1';
  52 } else {
  53     $tag->tagtype = '0';
  54 }
  55 $tagform->set_data($tag);
  56
  57 // If new data has been sent, update the tag record
  58 if ($tagnew = $tagform->get_data()) {
  59
  60     tag_description_set($tag_id, stripslashes($tagnew->description), $tagnew->descriptionformat);
  61
  62     if (has_capability('moodle/tag:manage', $systemcontext)) {
  63         if (($tag->tagtype != 'default') && (!isset($tagnew->tagtype) || ($tagnew->tagtype != '1'))) {
  64             tag_type_set($tag->id, 'default');
  65
  66         } elseif (($tag->tagtype != 'official') && ($tagnew->tagtype == '1')) {
  67             tag_type_set($tag->id, 'official');
  68         }
  69     }
  70
  71     if (!has_capability('moodle/tag:manage', $systemcontext) && !has_capability('moodle/tag:edit', $systemcontext)) {
  72         unset($tagnew->name);
  73         unset($tagnew->rawname);
  74
  75     } else {  // They might be trying to change the rawname, make sure it's a change that doesn't affect name
  76         $tagnew->name = array_shift(tag_normalize($tagnew->rawname, TAG_CASE_LOWER));
  77
  78         if ($tag->name != $tagnew->name) {  // The name has changed, let's make sure it's not another existing tag
  79             if (tag_get_id($tagnew->name)) {   // Something exists already, so flag an error
  80                 $errorstring = s($tagnew->rawname).': '.get_string('namesalreadybeeingused', 'tag');
  81             }
  82         }
  83     }
  84
  85     if (empty($errorstring)) {    // All is OK, let's save it
  86
  87         $tagnew->timemodified = time();
  88
  89         if (has_capability('moodle/tag:manage', $systemcontext)) {
  90             // rename tag
  91             if(!tag_rename($tag->id, $tagnew->rawname)) {
  92                 error('Error updating tag record');
  93             }
  94         }
  95
  96         //log tag changes activity
  97         //if tag name exist from form, renaming is allow.  record log action as rename
  98         //otherwise, record log action as update
  99         if (isset($tagnew->name) && ($tag->name != $tagnew->name)){
 100             add_to_log($COURSE->id, 'tag', 'update', 'index.php?id='. $tag->id, $tag->name . '->'. $tagnew->name);
 101
 102         } elseif ($tag->description != $tagnew->description) {
 103             add_to_log($COURSE->id, 'tag', 'update', 'index.php?id='. $tag->id, $tag->name);
 104         }
 105
 106         //updated related tags
 107         tag_set('tag', $tagnew->id, explode(',', trim($tagnew->relatedtags)));
 108         //print_object($tagnew); die();
 109
 110         redirect($CFG->wwwroot.'/tag/index.php?tag='.rawurlencode($tag->name)); // must use $tag here, as the name isn't in the edit form
 111     }
 112 }
 113
 114
 115 $navlinks = array();
 116 $navlinks[] = array('name' => get_string('tags', 'tag'), 'link' => "{$CFG->wwwroot}/tag/search.php", 'type' => '');
 117 $navlinks[] = array('name' => $tagname, 'link' => '', 'type' => '');
 118
 119 $navigation = build_navigation($navlinks);
 120 print_header_simple(get_string('tag', 'tag') . ' - '. $tagname, '', $navigation);
 121
 122 print_heading($tagname, '', 2);
 123
 124 if (!empty($errorstring)) {
 125     notify($errorstring);
 126 }
 127
 128 $tagform->display();
 129
 130 if (ajaxenabled()) {
 131 ?>
 132
 133 <script type="text/javascript">
 134
 135 // An XHR DataSource
 136 var myServer = "./tag_autocomplete.php";
 137 var myDataSource = new YAHOO.widget.DS_XHR(myServer, ["\n", "\t"]);
 138 myDataSource.responseType = YAHOO.widget.DS_XHR.TYPE_FLAT;
 139 myDataSource.maxCacheEntries = 60;
 140 myDataSource.queryMatchSubset = true;
 141
 142 var myAutoComp = new YAHOO.widget.AutoComplete("id_relatedtags","relatedtags-autocomplete", myDataSource);
 143 myAutoComp.delimChar = ",";
 144 myAutoComp.maxResultsDisplayed = 20;
 145 myAutoComp.minQueryLength = 2;
 146 myAutoComp.allowBrowserAutocomplete = false;
 147 myAutoComp.formatResult = function(aResultItem, sQuery) {
 148     return aResultItem[1];
 149 }
 150 </script>
 151
 152 <?php
 153 }
 154 print_footer();
 155
 156 ?>