Laravel: how to create a function After or Before save|update

Question

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

Answer 1

This only works after an event happened on your model.

Create an observer for your model

php artisan make:observer UserObserver --model=User

this will create an event observer on your model

class UserObserver
{
    /**
     * Handle the User "created" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function created(User $user)
    {
        //
    }

    /**
     * Handle the User "updated" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function updated(User $user)
    {
        //
    }

    /**
     * Handle the User "deleted" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function deleted(User $user)
    {
        //
    }

    /**
     * Handle the User "forceDeleted" event.
     *
     * @param  \App\Models\User  $user
     * @return void
     */
    public function forceDeleted(User $user)
    {
        //
    }
}

You must register this observer in the boot method on one of your ServiceProviders preferably the AppServiceProvider

public function boot()
{
    User::observe(UserObserver::class);
}