Version 3 end of life
This version of Silverstripe CMS will not recieve any additional bug fixes or documentation updates. Go to documentation for the most recent stable version.

Request Filters

RequestFilter is an interface that provides two key methods. preRequest and postRequest. These methods are executed before and after a request occurs to give developers a hook to modify any global state, add request tracking or perform operations wrapped around responses and request objects. A RequestFilter is defined as:



	class CustomRequestFilter implements RequestFilter {

		public function preRequest(SS_HTTPRequest $request, Session $session, DataModel $model) {
			// if(!something) {
			// 	By returning 'false' from the preRequest method, request execution will be stopped from continuing.
			//	return false;
			// }

			// we can also set any properties onto the request that we need or add any tracking
			// Foo::bar();

			// return true to continue processing.
			return true;

		public function postRequest(SS_HTTPRequest $request, SS_HTTPResponse $response, DataModel $model) {
			// response is about to be sent.
			// any modifications or tracking to be done?
			// Foo::unbar();

			// return true to send the response.
			return true;


	        - '%$CustomRequestFilter'