/**
  * @private
  */
 function _deleteFields()
 {
     // otherwise, go through all the selected fields and remove them one by one,
     // also removing the rows that contain the values
     $customFields = new CustomFields();
     $errorMessage = "";
     $successMessage = "";
     $totalOk = 0;
     $this->_view = new AdminCustomFieldsListView($this->_blogInfo);
     foreach ($this->_fieldIds as $fieldId) {
         $field = $customFields->getCustomField($fieldId);
         if ($field) {
             // fire the pre-event
             $this->notifyEvent(EVENT_PRE_CUSTOM_FIELD_DELETE, array("field" => &$field));
             $result = $customFields->removeCustomField($fieldId);
             if ($result) {
                 $totalOk++;
                 if ($totalOk > 1) {
                     $successMessage = $this->_locale->pr("fields_deleted_ok", $totalOk);
                 } else {
                     $successMessage = $this->_locale->pr("field_deleted_ok", $field->getName());
                 }
                 // fire the post-event
                 $this->notifyEvent(EVENT_POST_CUSTOM_FIELD_DELETE, array("field" => &$field));
             } else {
                 $errorMessage .= $this->_locale->pr("error_deleting_field", $field->getName()) . "<br/>";
             }
         } else {
             $errorMessage .= $this->_locale->pr("error_deleting_field2", $fieldId) . "<br/>";
         }
     }
     if ($errorMessage != "") {
         $this->_view->setErrorMessage($errorMessage);
     }
     if ($successMessage != "") {
         $this->_view->setSuccessMessage($successMessage);
     }
     $this->setCommonData();
     return true;
 }