Accessing fields of 'Events' model to compare user_id.

Hi all
I am fairly new to CakePHP, I am trying to only allow those users who created an event to be able to edit or delete an event, so I am comparing the current user id, with the 'user_id' field of the event the current event (saved when a user creates an event). Any help would be appreciated thanks, my code(Andrew Perk) is as follows:

public function isAuthorized($user) {
        $this->loadModel('User');
        if ($user['role'] == 'admin') {
            return true;
        }
        if (in_array($this->action, array('edit', 'delete'))) {
            if ($user['id'] != $this->request->data['Event']['user_id']) { //////////////////// THIS IS THE LINE I FEEL IS WRONG - PLEASE ADVISE
                //echo debug($event['user_id']);
                //$this->Session->setFlash(__('You are not allowed to edit someones event'));
                return false;
            }
        }
        return true;
    }

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