tag/manage.php

   1 <?php // $Id$
   2
   3 require_once('../config.php');
   4 require_once($CFG->libdir.'/tablelib.php');
   5 require_once('lib.php');
   6
   7 define('SHOW_ALL_PAGE_SIZE', 50000);
   8 define('DEFAULT_PAGE_SIZE', 30);
   9
  10 $tagschecked = optional_param('tagschecked', array(), PARAM_INT);
  11 $newnames    = optional_param('newname', array(), PARAM_TAG);
  12 $tagtypes    = optional_param('tagtypes', array(), PARAM_ALPHA);
  13 $action      = optional_param('action', '', PARAM_ALPHA);
  14 $perpage     = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT);
  15
  16 require_login();
  17
  18 if (empty($CFG->usetags)) {
  19     print_error('tagsaredisabled', 'tag');
  20 }
  21
  22 //managing tags requires moodle/tag:manage capability
  23 $systemcontext   = get_context_instance(CONTEXT_SYSTEM);
  24 require_capability('moodle/tag:manage', $systemcontext);
  25
  26 $navlinks = array();
  27 $navlinks[] = array('name' => get_string('tags', 'tag'), 'link' => "{$CFG->wwwroot}/tag/search.php", 'type' => '');
  28 $navlinks[] = array('name' => get_string('managetags', 'tag'), 'link' => '', 'type' => '');
  29
  30 $navigation = build_navigation($navlinks);
  31 print_header_simple(get_string('managetags', 'tag'), '', $navigation);
  32
  33 $err_notice = '';
  34 $notice = '';
  35
  36 // get all the possible tag types from db
  37 $existing_tagtypes = array();
  38 if ($ptypes = get_records_sql("SELECT DISTINCT(tagtype) FROM {$CFG->prefix}tag")) {
  39     foreach ($ptypes as $ptype) {
  40         $existing_tagtypes[$ptype->tagtype] = $ptype->tagtype;
  41     }
  42 }
  43 $existing_tagtypes['official'] = get_string('tagtype_official', 'tag');
  44 $existing_tagtypes['default'] = get_string('tagtype_default', 'tag');
  45
  46 switch($action) {
  47
  48     case 'delete':
  49         if (!data_submitted() or !confirm_sesskey()) {
  50             break;
  51         }
  52
  53         $str_tagschecked = implode(', ', tag_get_name($tagschecked));
  54         tag_delete($tagschecked);
  55         $notice = $str_tagschecked.' --  '.get_string('deleted','tag');
  56         break;
  57
  58     case 'reset':
  59         if (!data_submitted() or !confirm_sesskey()) {
  60             break;
  61         }
  62         $str_tagschecked = implode(', ', tag_get_name($tagschecked));
  63         tag_unset_flag($tagschecked);
  64         $notice = $str_tagschecked .' -- '. get_string('reset', 'tag');
  65         break;
  66
  67     case 'changetype':
  68         if (!data_submitted() or !confirm_sesskey()) {
  69             break;
  70         }
  71
  72         $changed = array();
  73         foreach ($tagschecked as $tag_id) {
  74             if (!array_key_exists($tagtypes[$tag_id], $existing_tagtypes)) {
  75                 //can not add new types here!!
  76                 continue;
  77             }
  78
  79             // update tag type;
  80             if (tag_type_set($tag_id, $tagtypes[$tag_id])) {
  81                 $changed[] = $tag_id;
  82             }
  83         }
  84
  85         if (!empty($changed)) {
  86             $str_changed = implode(', ', tag_get_name($changed));
  87             $notice = $str_changed .' --  '. get_string('typechanged','tag');
  88         }
  89         break;
  90
  91     case 'changename':
  92         if (!data_submitted() or !confirm_sesskey()) {
  93             break;
  94         }
  95
  96         $tags_names_changed = array();
  97         foreach ($tagschecked as $tag_id) {
  98             if ($newnames[$tag_id] != '') {
  99                 if (! $tags_names_updated[] = tag_rename($tag_id, $newnames[$tag_id]) ) {
 100                     // if tag already exists, or is not a valid tag name, etc.
 101                     $err_notice .= $newnames[$tag_id]. '-- ' . get_string('namesalreadybeeingused','tag').'<br />';
 102                 } else {
 103                     $tags_names_changed[$tag_id] = $newnames[$tag_id];
 104                 }
 105             }
 106         }
 107
 108         //notice to inform what tags had their names effectively updated
 109         if ($tags_names_changed){
 110             $notice = implode($tags_names_changed, ', ');
 111             $notice .= ' -- ' . get_string('updated','tag');
 112         }
 113         break;
 114     case 'addofficialtag':
 115         $new_otags = explode(',', optional_param('otagsadd', '', PARAM_TAG));
 116         $notice = '';
 117         foreach ( $new_otags as $new_otag ) {
 118             if ( $new_otag_id = tag_get_id($new_otag) ) {
 119                 // tag exists, change the type
 120                 tag_set_type($new_otag_id, 'official');
 121             } else {
 122                 tag_add($new_otag, 'official');
 123             }
 124             $notice .= get_string('addedotag', 'tag', $new_otag) .' ';
 125         }
 126         break;
 127 }
 128
 129 echo '<br/>';
 130
 131 if ($err_notice) {
 132     notify($err_notice, 'red');
 133 }
 134 if ($notice) {
 135     notify($notice, 'green');
 136 }
 137
 138 // small form to add an official tag
 139 print('<form class="tag-management-form" method="post" action="'.$CFG->wwwroot.'/tag/manage.php">');
 140 print('<input type="hidden" name="action" value="addofficialtag">');
 141 print('<div class="tag-management-form generalbox"><label class="accesshide" for="id_otagsadd">'. get_string('addotags', 'tag') .'</label>'.
 142     '<input name="otagsadd" id="id_otagsadd" type="text">'.
 143     '<input name="addotags" value="'. get_string('addotags', 'tag') .'" onclick="skipClientValidation = true;" id="id_addotags" type="submit">'.
 144     '</div>');
 145 print('</form>');
 146
 147 //setup table
 148
 149 $tablecolumns = array('id', 'name', 'fullname', 'count', 'flag', 'timemodified', 'rawname', 'tagtype', '');
 150 $tableheaders = array(get_string('id', 'tag'),
 151                       get_string('name', 'tag'),
 152                       get_string('owner', 'tag'),
 153                       get_string('count', 'tag'),
 154                       get_string('flag', 'tag'),
 155                       get_string('timemodified', 'tag'),
 156                       get_string('newname', 'tag'),
 157                       get_string('tagtype', 'tag'),
 158                       get_string('select', 'tag'));
 159
 160 $table = new flexible_table('tag-management-list-'.$USER->id);
 161
 162 $baseurl = $CFG->wwwroot.'/tag/manage.php?perpage='.$perpage;
 163
 164 $table->define_columns($tablecolumns);
 165 $table->define_headers($tableheaders);
 166 $table->define_baseurl($baseurl);
 167
 168 $table->sortable(true, 'flag', SORT_DESC);
 169
 170 $table->set_attribute('cellspacing', '0');
 171 $table->set_attribute('id', 'tag-management-list');
 172 $table->set_attribute('class', 'generaltable generalbox');
 173
 174 $table->set_control_variables(array(
 175 TABLE_VAR_SORT    => 'ssort',
 176 TABLE_VAR_HIDE    => 'shide',
 177 TABLE_VAR_SHOW    => 'sshow',
 178 TABLE_VAR_IFIRST  => 'sifirst',
 179 TABLE_VAR_ILAST   => 'silast',
 180 TABLE_VAR_PAGE    => 'spage'
 181 ));
 182
 183 $table->setup();
 184
 185 if ($table->get_sql_sort()) {
 186     $sort = 'ORDER BY '. $table->get_sql_sort();
 187 } else {
 188     $sort = '';
 189 }
 190
 191 if ($table->get_sql_where()) {
 192     $where = 'WHERE '. $table->get_sql_where();
 193 } else {
 194     $where = '';
 195 }
 196
 197 $query = 'SELECT tg.id, tg.name, tg.rawname, tg.tagtype, COUNT(ti.id) AS count, u.id AS owner, tg.flag, tg.timemodified, u.firstname, u.lastname '.
 198     'FROM '. $CFG->prefix .'tag_instance ti RIGHT JOIN '. $CFG->prefix .'tag tg ON tg.id = ti.tagid LEFT JOIN '. $CFG->prefix .'user u ON tg.userid = u.id '.
 199     $where .' '.
 200     'GROUP BY tg.id, tg.name, tg.rawname, tg.tagtype, u.id, tg.flag, tg.timemodified, u.firstname, u.lastname '.
 201     $sort;
 202
 203 $totalcount = count_records_sql('SELECT COUNT(DISTINCT(tg.id)) FROM '. $CFG->prefix .'tag tg LEFT JOIN '. $CFG->prefix .'user u ON u.id = tg.userid '. $where);
 204
 205 $table->initialbars(true); // always initial bars
 206 $table->pagesize($perpage, $totalcount);
 207
 208 echo '<form class="tag-management-form" method="post" action="'.$CFG->wwwroot.'/tag/manage.php"><div>';
 209
 210 //retrieve tags from DB
 211 if ($tagrecords = get_records_sql($query, $table->get_page_start(),  $table->get_page_size())) {
 212
 213     $taglist = array_values($tagrecords);
 214
 215     //print_tag_cloud(array_values(get_records_sql($query)), false);
 216     //populate table with data
 217     foreach ($taglist as $tag ){
 218         $id             =   $tag->id;
 219         $name           =   '<a href="'.$CFG->wwwroot.'/tag/index.php?id='.$tag->id.'">'. tag_display_name($tag) .'</a>';
 220         $owner          =   '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$tag->owner.'">' . fullname($tag) . '</a>';
 221         $count          =   $tag->count;
 222         $flag           =   $tag->flag;
 223         $timemodified   =   format_time(time() - $tag->timemodified);
 224         $checkbox       =   '<input type="checkbox" name="tagschecked[]" value="'.$tag->id.'" />';
 225         $text           =   '<input type="text" name="newname['.$tag->id.']" />';
 226         $tagtype        =   choose_from_menu($existing_tagtypes, 'tagtypes['.$tag->id.']', $tag->tagtype, '', '', '0', true);
 227
 228         //if the tag if flagged, highlight it
 229         if ($tag->flag > 0) {
 230             $id = '<span class="flagged-tag">' . $id . '</span>';
 231             $name = '<span class="flagged-tag">' . $name . '</span>';
 232             $owner = '<span class="flagged-tag">' . $owner . '</span>';
 233             $count = '<span class="flagged-tag">' . $count . '</span>';
 234             $flag = '<span class="flagged-tag">' . $flag . '</span>';
 235             $timemodified = '<span class="flagged-tag">' . $timemodified . '</span>';
 236             $tagtype = '<span class="flagged-tag">'. $tagtype. '</span>';
 237         }
 238
 239         $data = array($id, $name, $owner, $count, $flag, $timemodified, $text, $tagtype, $checkbox);
 240
 241         $table->add_data($data);
 242     }
 243
 244     echo '<input type="button" onclick="checkall()" value="'.get_string('selectall').'" /> ';
 245     echo '<input type="button" onclick="checknone()" value="'.get_string('deselectall').'" /> ';
 246     echo '<input type="hidden" name="sesskey" value="'.sesskey().'" /> ';
 247     echo '<br/><br/>';
 248     echo '<select id="menuformaction" name="action">
 249                 <option value="" selected="selected">'. get_string('withselectedtags', 'tag') .'</option>
 250                 <option value="reset">'. get_string('resetflag', 'tag') .'</option>
 251                 <option value="delete">'. get_string('delete', 'tag') .'</option>
 252                 <option value="changetype">'. get_string('changetype', 'tag') .'</option>
 253                 <option value="changename">'. get_string('changename', 'tag') .'</option>
 254             </select>';
 255
 256     echo '<button id="tag-management-submit" type="submit">'. get_string('ok') .'</button>';
 257 }
 258
 259 $table->print_html();
 260 echo '</div></form>';
 261
 262 if ($perpage == SHOW_ALL_PAGE_SIZE) {
 263     echo '<div id="showall"><a href="'. $baseurl .'&amp;perpage='. DEFAULT_PAGE_SIZE .'">'. get_string('showperpage', '', DEFAULT_PAGE_SIZE) .'</a></div>';
 264
 265 } else if ($totalcount > 0 and $perpage < $totalcount) {
 266     echo '<div id="showall"><a href="'. $baseurl .'&amp;perpage='. SHOW_ALL_PAGE_SIZE .'">'. get_string('showall', '', $totalcount) .'</a></div>';
 267 }
 268
 269 echo '<br/>';
 270
 271 print_footer();
 272
 273 ?>