Easy Eloquent + Relation Cache Management
Submitted by nlogachev - 10 years ago
Combining Model Observers and Cache Tags for very simple but elegant automatic cache flushing on Eloquent Model updates. Can handle both a Model and its Relations easily!
////
/* Subclassable, generic Model Observer */
////
class ModelObserver {
protected function clearCacheTags($tags)
{
Cache::tags($tags)->flush();
}
public function saved($model)
{
$this->clearCacheTags($model->getTable());
}
public function deleted($model)
{
$this->clearCacheTags($model->getTable());
}
public function restored($model)
{
$this->clearCacheTags($model->getTable());
}
}
////
/* Base Model that other models subclass */
////
class BaseModel extends \Illuminate\Database\Eloquent\Model {
public static function table()
{
$instance = new static;
return $instance->getTable();
}
}
////
/* Set up observers, for example in start/global.php */
////
$modelObserver = new ModelObserver;
Comment::observe($modelObserver);
Post::observe($modelObserver);
User::observe($modelObserver);
////
/* Putting it all together: note how regardless of which model type gets
* updated, we've tagged this Cache closure with each of the involved models'
* tables, so we will automatically get a fresh result set in case of changes.
*/
////
$posts = Cache::tags(User::table(),Post::table(),Comment::table())->remember('whatever_unique_key_you_want', 60 * 24, function() {
return Post::with('user','comments')
->latest()
->take(10)
->get();
});
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