/**
* Processes the request, checking for attached
* Cache decorators. If decorators are found,
* the request performs the following tasks.
*
* 1. Checks for existing cached response, returning valid hits
* 2. Runs the Kohana_Request::execute() logic to create a response
* 3. Caches the response using a decorator if valid
*
* $request->execute();
*
* @return Kohana_Response
* @throws Kohana_Exception
* @uses [Kohana::$profiling]
* @uses [Profiler]
* @uses [Request_Cache]
*/
public function execute()
{
// If there are no cache adaptors
if (!Request::$cache->cache_decorators) {
// Get out of here
return parent::execute();
}
// Create the cache key
$key = $this->create_cache_key($this->uri());
// Try and retrieve a cached response
$response = Request::$cache->get($key);
// If a response is returned
if ($response instanceof Kohana_Response) {
// Return the cached response
return $response;
} else {
// Execute the contoller to get the response
$response = parent::execute();
}
// If the response method is in the allow list
if (!in_array($this->method, Request_Cache::$cache_methods_allow)) {
// return FALSE
return $response;
} else {
if (!Request_Cache::validate_set($response)) {
// return the non-cached result
return $response;
}
}
// Set the response to cache
Request::$cache->set($key, $response);
// Return the response
return $response;
}
