function admin_md_details_update()
 {
     $request =& HTTPRequest::instance();
     $_label = $request->get('label');
     $_gid = (int) $request->get('group_id');
     $mdFactory = new Docman_MetadataFactory($_gid);
     $md =& $mdFactory->getFromLabel($_label);
     if ($md !== null) {
         if ($md->getGroupId() == $_gid) {
             // Name
             if ($md->canChangeName()) {
                 $_name = trim($request->get('name'));
                 $md->setName($_name);
             }
             // Description
             if ($md->canChangeDescription()) {
                 $_descr = $request->get('descr');
                 $md->setDescription($_descr);
             }
             // Is empty allowed
             if ($md->canChangeIsEmptyAllowed()) {
                 $_isEmptyAllowed = (int) $request->get('empty_allowed');
                 if ($_isEmptyAllowed === 1) {
                     $md->setIsEmptyAllowed(PLUGIN_DOCMAN_DB_TRUE);
                 } else {
                     $md->setIsEmptyAllowed(PLUGIN_DOCMAN_DB_FALSE);
                 }
             }
             if ($md->canChangeIsMultipleValuesAllowed()) {
                 $_isMultipleValuesAllowed = (int) $request->get('multiplevalues_allowed');
                 if ($_isMultipleValuesAllowed === 1) {
                     $md->setIsMultipleValuesAllowed(PLUGIN_DOCMAN_DB_TRUE);
                 } else {
                     $md->setIsMultipleValuesAllowed(PLUGIN_DOCMAN_DB_FALSE);
                 }
             }
             // Usage
             if (!$md->isRequired()) {
                 $_useIt = (int) $request->get('use_it');
                 if ($_useIt === 1) {
                     $md->setUseIt(PLUGIN_DOCMAN_METADATA_USED);
                 } else {
                     $md->setUseIt(PLUGIN_DOCMAN_METADATA_UNUSED);
                 }
             }
             $updated = $mdFactory->update($md);
             if ($updated) {
                 $this->_controler->feedback->log('info', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_update'));
             } else {
                 $this->_controler->feedback->log('warning', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_not_update'));
             }
         } else {
             $this->_controler->feedback->log('error', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_id_mismatched'));
             $this->_controler->feedback->log('error', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_not_update'));
         }
     } else {
         $this->_controler->feedback->log('error', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_bad_label'));
         $this->_controler->feedback->log('error', $GLOBALS['Language']->getText('plugin_docman', 'admin_metadata_not_update'));
     }
 }