laravel how to call a method when a row inserted in model?

Question

I have two model ( Cart & AcceptedCart ) and I want to run this method when a row insrted in AcceptedCart model :

    public function dataUpdated()
    {
      $cart = Cart::where('id' , $this->cart_id)->first();
      $sum = 0;
      $acceptedCarts = AcceptedCart::where('cart_id' , $this->cart_id)->get();
      foreach($acceptedCarts as $acceptedCart){
          $sum += $acceptedCart->accepted_count;
      }
      if ($sum == $cart->product_quantity){
          $cart->full_accepted = true;
          $cart->save();
      }
    }

as you see, I change full_accpted = true in the cart model.

the AcceptedCart migration is :

    public function up()
{
    Schema::create('accepted_carts', function (Blueprint $table) {
        $table->id();
        $table->unsignedBigInteger('cart_id');
        $table->unsignedBigInteger('accepted_by')->nullable();
        $table->integer('accepted_count');
        $table->timestamps();

        $table->foreign('cart_id')->references('id')->on('carts');
    });
}

and Cart migration is :

    public function up()
{
    Schema::create('carts', function (Blueprint $table) {
        $table->id();
        $table->boolean('full_accepted')->default(false);
        $table->text('address');
        $table->timestamps();
    });
}

how can I call this dataUpdated method every time a row inserted to AcceptedCart model?

Answer 1

You might want to consider using Observers.

Events can be fired when a Model is created/updated and so on.

You can find out more here .

Answer 2

You can use the models booted() method to achieve this simple task, also you can use the separate observer class to listen to model events like created/updated/deleted, etc.

Eg 1. How you can listen to model events in the same model.

class AcceptedCart extends Model
{
    /**
     * The "booted" method of the model.
     *
     * @return void
     */
    protected static function booted()
    {
        static::created(function ($acceptedCart) {
           $acceptedCart->dataUpdated();
        });
        // Similarly you can do for updated/deleted events as well
    }
}

Eg 2. You can use Observer class to listen to events

<?php
 
namespace App\Observers;
 
use App\Models\AcceptedCart;
 
class AcceptedCartObserver
{
    /**
     * Handle the AcceptedCart "created" event.
     *
     * @param  \App\Models\AcceptedCart  $acceptedCart
     * @return void
     */
    public function created(AcceptedCart $acceptedCart)
    {
        $acceptedCart->dataUpdated();
    }
 
    /**
     * Handle the AcceptedCart "updated" event.
     *
     * @param  \App\Models\AcceptedCart  $acceptedCart
     * @return void
     */
    public function updated(AcceptedCart $acceptedCart)
    {
        // Similarly for update
    }
}

You can learn more here about Model Observers