Re: Cache::clearGroup in model and component building cache again

Just one addition: The "unlink"-error is the same when I use the
AutoCache-Plugin instead of the component-logic above...

On Feb 26, 6:50 pm, LDSign <fr...@lamozik.de> wrote:
> Hi
>
> I have ran into a problem which drives me crazy :(
>
> Ive a component which is used on every page to build the navigation for
> every individual user. The navigation is database driven so caching is a
> good idea - so far so good
>
> The cache is built in the startup-callback of the component like so
> (package and agent is just an example):
>
> > public function initialize(Controller $controller) {
> > parent::initialize($controller);
> > $package = Cache::read($this->Auth->user('id'),'packages');
>
> > if (!$package) {
> > $agent = ClassRegistry::init('Agent')->find('first',array('conditions' =>
> > array('Agent.id' => $this->Auth->user('Company.agent_id'))));
>
> > if (!empty($agent)) {
> > Cache::write($this->Auth->user('id'), $agent['Package'],'packages');
> > }
> > }
> > }
>
> This works as expected (if the cache file does not exist it would be
> generated).
>
> Now, I would like to push the creation of the cache manually when a
> data-change happens. So Ive put an afterSave-callback in the model:
>
> public function afterSave($created) {
>
> > Cache::clearGroup('packages');
> > }
>
> This works too if I test this seperatly. But when I use this "together"
> with the component-callback I will get an error-message:
>
> *Warning* (2): unlink(C:\xampp\htdocs\ebsst\tmp\cache\packages\ebsst_package_73): Permission denied [*CORE\Cake\Cache\Engine\FileEngine.php*, line *368*]
>
> The cache-file is not cleared though. I guess the file is locked by the file-system (Xampp on Windows 7) through the component. I am not sure about the order of these callbacks and how they interfere between models and components. So ive tried different callbacks in both - but no luck.
>
> Do you have a hint to solve this problem or is this a complete false approach?
>
> Thanks,
> Frank

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