laravel学习笔记之模型事件的几种用法示例

protected $listen = [
'AppEventsPostEvent' => [
'AppListenersPostListener',
],
];
php artisan event:generate //生成文件
event 中注入要操作的类
listen 中handle 方法注入对应事件类
public function handle(PostEvent $event)
{
dump('测试一下修改事件');
}

最后在 post 模型中添加 'events' 属性
protected $events = [
'updated' => PostListener::class
];

public static function boot() {
parent::boot();
static::updated(function($model) {
dump('测试一下修改事件');
});
}

trait LogRecord
{
//注意,必须以 boot 开头
public static function bootLogRecord()
{
foreach(static::getModelEvents() as $event) {
static::$event(function ($model){
$model->setRemind();
});
}
}
public static function getModelEvents()
{
if(isset(static::$recordEvents)){
return static::$recordEvents;
}
return ['updated'];
}
public function setRemind()
{
dump('记录逻辑操作');
}
}