trigger_action_remove_metadata_schema.inc

<?php
require_once SQ_CORE_PACKAGE_PATH.'/system/triggers/trigger_action/trigger_action.inc';

class Trigger_Action_Remove_Metadata_Schema extends Trigger_Action
{


    public static function execute($settings, &$state)
    {
        $am =& $GLOBALS['SQ_SYSTEM']->am;
        $mm = $GLOBALS['SQ_SYSTEM']->getMetadataManager();
        $master_list = Array();

        // check required settings
        if (empty($settings['schemaid']) && (!isset($settings['removeall']) && !$settings['removeall'])) {
            return FALSE;
        }

        if (empty($state['asset'])) {
            // grab the asset if assetid is given, but not the asset.
            if (empty($state['assetid'])) {
                return FALSE;
            } else {
                $state['asset'] = $am->getAsset($state['assetid']);
            }
        }

        if (is_null($state['asset'])) return FALSE;

        $remove_all = array_get_index($settings, 'removeall', FALSE);
        $cascade = array_get_index($settings, 'cascade', FALSE);

        // Get the master list of metadata schema from the parent asset
        if ($remove_all) {
            $master_list = $mm->getSchemas($state['asset']->id);
            $schema = NULL;
        } else {
            $schema = $am->getAsset($settings['schemaid']);
        }//end if

        // Error checking
        // Test 1 - No schema and no remove all schema ie. nothing to do!
        // Test 2 - No schema and remove all with no metadata schemas ie. again nothing to do!
        if ((is_null($schema) || $schema->type() != 'metadata_schema') && !$remove_all) {
            return TRUE;
        } else if (empty($master_list) && $remove_all && (is_null($schema) || $schema->type() != 'metadata_schema')) {
            return TRUE;
        }

        if (!$cascade) {
            if ($remove_all) {
                foreach ($master_list as $schema_to_delete => $grant_return) {
                    $result[] = $mm->deleteSchema($state['asset']->id, $schema_to_delete);
                }
            } else {
                $result = $mm->deleteSchema($state['asset']->id, $schema->id);
            
            }//end if
        } else {
            if ($remove_all) {
                foreach ($master_list as $schema_to_delete => $grant_return) {
                    $schema_vars[]  = Array(
                                        'assetids'          => Array($state['asset']->id),
                                        'granted'           => -1,
                                        'schemaid'          => $schema_to_delete,
                                        'previous_access'   => NULL,
                                        'cascades'          => TRUE,
                                      );
                }//end foreach
                $vars   = Array(
                            'assets'            => Array(
                                                    $state['asset']->id => Array(
                                                                            'type_code' => $state['asset']->type(),
                                                                           ),
                                                   ),
                            'schema_changes'    => $schema_vars,
                          );

                $hh = $GLOBALS['SQ_SYSTEM']->getHipoHerder();
                $errors = $hh->freestyleHIPO('hipo_job_edit_metadata_schemas', $vars);
                $result = empty($errors);
            } else {
                $schema_vars[]  = Array(
                                    'assetids'          => Array($state['asset']->id),
                                    'granted'           => -1,
                                    'schemaid'          => $settings['schemaid'],
                                    'previous_access'   => NULL,
                                    'cascades'          => TRUE,
                                  );
                $vars   = Array(
                            'assets'            => Array(
                                                    $state['asset']->id => Array(
                                                                            'type_code' => $state['asset']->type(),
                                                                           ),
                                                   ),
                            'schema_changes'    => $schema_vars,
                          );

                $hh = $GLOBALS['SQ_SYSTEM']->getHipoHerder();
                $errors = $hh->freestyleHIPO('hipo_job_edit_metadata_schemas', $vars);
                $result = empty($errors);
            }//end if
        }//end else

        // Hmm result is an array, let me double check
        if (is_array($result)) {
            $trigger_result = TRUE;
            foreach ($result as $result_value) {
                if (!$result_value) $trigger_result = FALSE;
            }//end foreach

            // Return the result, so the trigger can finish
            $result = $trigger_result;
        }//end if

        if (!$result) {
            return FALSE;
        } else {
            return Array(
                    'assetid'       => $state['asset']->id,
                    'schemaid'      => $settings['schemaid'],
                    'remove_all'    => $remove_all,
                    'cascade'       => $cascade,
                   );
        }

    }//end execute()


    public static function getInterface($settings, $prefix, $write_access=FALSE)
    {
        $current_schemaid = array_get_index($settings, 'schemaid', 0);
        $remove_all = array_get_index($settings, 'removeall', 0);
        $cascade = array_get_index($settings, 'cascade', 0);
    
        ob_start();
            if ($write_access) {
                echo translate('trigger_schema_remove_schema_message');
                asset_finder($prefix.'[schemaid]', $current_schemaid, Array('metadata_schema' => 'I'));
                echo '<br />';
                check_box($prefix.'[removeall]', '1', $remove_all, 'if (this.checked == true) { if (!confirm("'.translate('trigger_schema_remove_all_schema_confirm_message').'")) { this.checked = false; } }');
                label(translate('trigger_schema_remove_all_schema_message'));
                echo '<br />';
                check_box($prefix.'[cascade]', '1', $cascade);
                label(translate('cascade_schema_changes'), $prefix.'[cascade]');

            } else {
                if (!empty($current_schemaid)) {
                    $schema_info = $GLOBALS['SQ_SYSTEM']->am->getAssetInfo(Array($current_schemaid));
                    echo translate('trigger_schema_remove_schema_message').' ';
                    echo '<b>'.$schema_info[$current_schemaid]['name'].' (#'.$current_schemaid.')</b>';
                } else {
                    echo translate('trigger_schema_remove_schema_message').' ';
                    echo '<b>'.translate('trigger_schema_no_schema_message').'</b>';
                }
                echo '<br />';
                echo '<img src="'.sq_web_path('lib').'/web/images/'.($remove_all ? 'tick' : 'cross').'.gif" alt="'.($remove_all ? translate('yes') : translate('no')).'" /> ';
                echo translate('trigger_schema_remove_all_schema_message');
                echo '<br />';
                echo '<img src="'.sq_web_path('lib').'/web/images/'.($cascade ? 'tick' : 'cross').'.gif" alt="'.($cascade ? translate('yes') : translate('no')).'" /> ';
                echo translate('cascade_schema_changes');
            }

            $output = ob_get_contents();
        ob_end_clean();

        return $output;

    }//end getInterface()


    public static function processInterface(&$settings, $request_data)
    {
        $schema_info = array_get_index($request_data, 'schemaid', Array('assetid' => 0));
        $settings['schemaid'] = array_get_index($schema_info, 'assetid', 0);
        $settings['removeall'] = array_get_index($request_data, 'removeall', FALSE);
        $settings['cascade'] = array_get_index($request_data, 'cascade', FALSE);
        return FALSE;

    }//end processInterface()


    public static function getLocks($settings, &$state)
    {
        return Array($state['assetid'] => Array('metadata'));

    }//end getLocks()


}//end class

?>