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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