silverstripe-framework/admin/code/CMSBatchAction.php

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<?php
/**
* A class representing back actions.
* See CMSMain.BatchActions.js on how to add custom javascript
* functionality.
*
* <code>
* CMSMain::register_batch_action('publishitems', new CMSBatchAction('doPublish',
* _t('CMSBatchActions.PUBLISHED_PAGES', 'published %d pages')));
* </code>
*
* @package cms
* @subpackage batchaction
*/
abstract class CMSBatchAction extends Object {
protected $managedClass = 'SiteTree';
/**
* The the text to show in the dropdown for this action
*/
abstract function getActionTitle();
/**
* Run this action for the given set of pages.
* Return a set of status-updated JavaScript to return to the CMS.
*/
abstract function run(SS_List $objs);
/**
* Helper method for processing batch actions.
* Returns a set of status-updating JavaScript to return to the CMS.
*
* @param $objs The SS_List of objects to perform this batch action
* on.
* @param $helperMethod The method to call on each of those objects.
* @return JSON encoded map in the following format:
* {
* 'modified': {
* 3: {'TreeTitle': 'Page3'},
* 5: {'TreeTitle': 'Page5'}
* },
* 'deleted': {
* // all deleted pages
* }
* }
*/
public function batchaction(SS_List $objs, $helperMethod, $successMessage, $arguments = array()) {
$status = array('modified' => array(), 'error' => array());
foreach($objs as $obj) {
// Perform the action
if (!call_user_func_array(array($obj, $helperMethod), $arguments)) {
$status['error'][$obj->ID] = '';
}
// Now make sure the tree title is appropriately updated
$publishedRecord = DataObject::get_by_id($this->managedClass, $obj->ID);
if ($publishedRecord) {
$status['modified'][$publishedRecord->ID] = array(
'TreeTitle' => $publishedRecord->TreeTitle,
);
}
$obj->destroy();
unset($obj);
}
$response = Controller::curr()->getResponse();
if($response) {
$response->setStatusCode(
200,
sprintf($successMessage, $objs->Count(), count($status['error']))
);
}
return Convert::raw2json($status);
}
/**
* Helper method for applicablePages() methods. Acts as a skeleton implementation.
*
* @param $ids The IDs passed to applicablePages
* @param $methodName The canXXX() method to call on each page to check if the action is applicable
* @param $checkStagePages Set to true if you want to check stage pages
* @param $checkLivePages Set to true if you want to check live pages (e.g, for deleted-from-draft)
*/
function applicablePagesHelper($ids, $methodName, $checkStagePages = true, $checkLivePages = true) {
if(!is_array($ids)) user_error("Bad \$ids passed to applicablePagesHelper()", E_USER_WARNING);
if(!is_string($methodName)) user_error("Bad \$methodName passed to applicablePagesHelper()", E_USER_WARNING);
$applicableIDs = array();
$SQL_ids = implode(', ', array_filter($ids, 'is_numeric'));
$draftPages = DataObject::get(
$this->managedClass,
sprintf(
"\"%s\".\"ID\" IN (%s)",
ClassInfo::baseDataClass($this->managedClass),
$SQL_ids
)
);
$onlyOnLive = array_fill_keys($ids, true);
if($checkStagePages) {
foreach($draftPages as $obj) {
unset($onlyOnLive[$obj->ID]);
if($obj->$methodName()) $applicableIDs[] = $obj->ID;
}
}
if(Object::has_extension($this->managedClass, 'Versioned')) {
// Get the pages that only exist on live (deleted from stage)
if($checkLivePages && $onlyOnLive) {
$SQL_ids = implode(', ', array_keys($onlyOnLive));
$livePages = Versioned::get_by_stage(
$this->managedClass, "Live",
sprintf(
"\"%s\".\"ID\" IN (%s)",
ClassInfo::baseDataClass($this->managedClass),
$SQL_ids
)
);
if($livePages) foreach($livePages as $obj) {
if($obj->$methodName()) $applicableIDs[] = $obj->ID;
}
}
}
return $applicableIDs;
}
// if your batchaction has parameters, return a FieldList here
function getParameterFields() {
return false;
}
/**
* If you wish to restrict the batch action to some users, overload this function.
*/
function canView() {
return true;
}
}