silverstripe-framework/admin/code/CMSBatchActionHandler.php

219 lines
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PHP
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<?php
/**
* Special request handler for admin/batchaction
*
* @package cms
* @subpackage batchaction
*/
class CMSBatchActionHandler extends RequestHandler {
static $batch_actions = array();
static $url_handlers = array(
'$BatchAction/applicablepages' => 'handleApplicablePages',
'$BatchAction/confirmation' => 'handleConfirmation',
'$BatchAction' => 'handleAction',
);
protected $parentController;
/**
* @var String
*/
protected $urlSegment;
/**
* @var String $recordClass The classname that should be affected
* by any batch changes. Needs to be set in the actual {@link CMSBatchAction}
* implementations as well.
*/
protected $recordClass = 'SiteTree';
/**
* Register a new batch action. Each batch action needs to be represented by a subclass
* of {@link CMSBatchAction}.
*
* @param $urlSegment The URL Segment of the batch action - the URL used to process this
* action will be admin/batchactions/(urlSegment)
* @param $batchActionClass The name of the CMSBatchAction subclass to register
*/
public static function register($urlSegment, $batchActionClass, $recordClass = 'SiteTree') {
if(is_subclass_of($batchActionClass, 'CMSBatchAction')) {
self::$batch_actions[$urlSegment] = array(
'class' => $batchActionClass,
'recordClass' => $recordClass
);
} else {
user_error("CMSBatchActionHandler::register() - Bad class '$batchActionClass'", E_USER_ERROR);
}
}
/**
* @param string $parentController
* @param string $urlSegment
* @param string $recordClass
*/
public function __construct($parentController, $urlSegment, $recordClass = null) {
$this->parentController = $parentController;
$this->urlSegment = $urlSegment;
if($recordClass) $this->recordClass = $recordClass;
parent::__construct();
}
public function Link() {
return Controller::join_links($this->parentController->Link(), $this->urlSegment);
}
public function handleAction($request) {
// This method can't be called without ajax.
if(!$request->isAjax()) {
$this->parentController->redirectBack();
return;
}
// Protect against CSRF on destructive action
if(!SecurityToken::inst()->checkRequest($request)) return $this->httpError(400);
$actions = $this->batchActions();
$actionClass = $actions[$request->param('BatchAction')]['class'];
$actionHandler = new $actionClass();
// Sanitise ID list and query the database for apges
$ids = preg_split('/ *, */', trim($request->requestVar('csvIDs')));
foreach($ids as $k => $v) if(!is_numeric($v)) unset($ids[$k]);
if($ids) {
if(class_exists('Translatable') && Object::has_extension('SiteTree','Translatable')) {
Translatable::disable_locale_filter();
}
$pages = DataObject::get(
$this->recordClass,
sprintf(
'"%s"."ID" IN (%s)',
ClassInfo::baseDataClass($this->recordClass),
implode(", ", $ids)
)
);
if(class_exists('Translatable') && Object::has_extension('SiteTree','Translatable')) {
Translatable::enable_locale_filter();
}
if(Object::has_extension($this->recordClass, 'Versioned')) {
// If we didn't query all the pages, then find the rest on the live site
if(!$pages || $pages->Count() < sizeof($ids)) {
foreach($ids as $id) $idsFromLive[$id] = true;
if($pages) foreach($pages as $page) unset($idsFromLive[$page->ID]);
$idsFromLive = array_keys($idsFromLive);
$sql = sprintf(
'"%s"."ID" IN (%s)',
$this->recordClass,
implode(", ", $idsFromLive)
);
$livePages = Versioned::get_by_stage($this->recordClass, 'Live', $sql);
if($pages) {
// Can't merge into a DataList, need to condense into an actual list first
// (which will retrieve all records as objects, so its an expensive operation)
$pages = new ArrayList($pages->toArray());
$pages->merge($livePages);
} else {
$pages = $livePages;
}
}
}
} else {
$pages = new ArrayList();
}
return $actionHandler->run($pages);
}
public function handleApplicablePages($request) {
// Find the action handler
$actions = Config::inst()->get($this->class, 'batch_actions', Config::FIRST_SET);
$actionClass = $actions[$request->param('BatchAction')];
$actionHandler = new $actionClass['class']();
// Sanitise ID list and query the database for apges
$ids = preg_split('/ *, */', trim($request->requestVar('csvIDs')));
foreach($ids as $k => $id) $ids[$k] = (int)$id;
$ids = array_filter($ids);
if($actionHandler->hasMethod('applicablePages')) {
$applicableIDs = $actionHandler->applicablePages($ids);
} else {
$applicableIDs = $ids;
}
$response = new SS_HTTPResponse(json_encode($applicableIDs));
$response->addHeader("Content-type", "application/json");
return $response;
}
public function handleConfirmation($request) {
// Find the action handler
$actions = Config::inst()->get($this->class, 'batch_actions', Config::FIRST_SET);
$actionClass = $actions[$request->param('BatchAction')];
$actionHandler = new $actionClass();
// Sanitise ID list and query the database for apges
$ids = preg_split('/ *, */', trim($request->requestVar('csvIDs')));
foreach($ids as $k => $id) $ids[$k] = (int)$id;
$ids = array_filter($ids);
if($actionHandler->hasMethod('confirmationDialog')) {
$response = new SS_HTTPResponse(json_encode($actionHandler->confirmationDialog($ids)));
} else {
$response = new SS_HTTPResponse(json_encode(array('alert' => false)));
}
$response->addHeader("Content-type", "application/json");
return $response;
}
/**
* Return a SS_List of ArrayData objects containing the following pieces of info
* about each batch action:
* - Link
* - Title
*/
public function batchActionList() {
$actions = $this->batchActions();
$actionList = new ArrayList();
foreach($actions as $urlSegment => $action) {
$actionClass = $action['class'];
$actionObj = new $actionClass();
if($actionObj->canView()) {
$actionDef = new ArrayData(array(
"Link" => Controller::join_links($this->Link(), $urlSegment),
"Title" => $actionObj->getActionTitle(),
));
$actionList->push($actionDef);
}
}
return $actionList;
}
/**
* Get all registered actions through the static defaults set by {@link register()}.
* Filters for the currently set {@link recordClass}.
*
* @return array See {@link register()} for the returned format.
*/
public function batchActions() {
$actions = Config::inst()->get($this->class, 'batch_actions', Config::FIRST_SET);
if($actions) foreach($actions as $action) {
if($action['recordClass'] != $this->recordClass) unset($action);
}
return $actions;
}
}