Laravel：如何在保存|更新之后或之前创建函数
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Laravel: how to create a function After or Before save|update
提问by Daniele Longheu
I need to generate a function to call after or before save() or update() but i don't know how to do. I think I need a callback from save() update() but I don't know how to do. Thanks
我需要生成一个函数在 save() 或 update() 之后或之前调用，但我不知道该怎么做。我想我需要从 save() update() 回调，但我不知道该怎么做。谢谢
回答by Mauro Casas
Inside your model, you can add a boot()method which will allow you to manage these events.
在您的模型中，您可以添加一个boot()方法，该方法将允许您管理这些事件。
For example, having User.php model:
例如，拥有 User.php 模型：
class User extends Model
{
public static function boot()
{
parent::boot();
self::creating(function($model){
// ... code here
});
self::created(function($model){
// ... code here
});
self::updating(function($model){
// ... code here
});
self::updated(function($model){
// ... code here
});
self::deleting(function($model){
// ... code here
});
self::deleted(function($model){
// ... code here
});
}
}
You can review all available events over here: https://laravel.com/docs/5.2/eloquent#events
您可以在此处查看所有可用事件：https: //laravel.com/docs/5.2/eloquent#events
回答by Rohit Khatri
Create a provider by using this command
使用此命令创建提供程序
php artisan make:provider ProviderClassName
then define the callbacks for models in boot function
然后在 boot 函数中定义模型的回调
Model::created(function($model){
//Do you want to do
});
List of available callbacks:
可用回调列表：
Model::creating(function($model){});
Model::updated(function($model){});
Model::updating(function($model){});
Model::deleted(function($model){});
Model::deleting(function($model){});
Model::saving(function($model){});
Model::saved(function($model){});
