我正在使用 Laravel 的 Event & Listener 功能来检测以下模型操作并触发一些应用程序逻辑。
应用程序/模型/MealFood
/**
* The event map for the model.
*
* Allows for object-based events for native Eloquent events.
*
* @var array
*/
protected $dispatchesEvents = [
'created' => MealFoodEvent::class,
'updated' => MealFoodEvent::class,
'deleted' => MealFoodEvent::class
];
应用程序/事件/MealFoodEvent
public $mealFood;
/**
* Create a new event instance.
*
* @param MealFood $mealFood
*/
public function __construct(MealFood $mealFood)
{
$this->mealFood = $mealFood;
}
应用程序/侦听器/MealFoodListener
public function handle(MealFoodEvent $event)
{
$mealFood = $event->mealFood;
}
是否可以检测到触发事件的模型动作?我希望能够知道触发事件的记录是否已创建/更新/删除。知道我正在使用软删除来检查记录是否被删除,但我怎么知道记录是否已更新或创建?