automatically assign value to a field in a laravel model

user_7385923 0
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I am working with laravel and in one of my models I need to automatically assign the value to a field (of type date) every time a record is created, as I am just starting with laravel, I do not do this, since I try with a mutator:

public function setApprovedDateAttribute($date)
{
    $this->attributes['approved_date'] = Carbon::now()->format('Y-m-d');
}

but it doesn't work for me, because I think that the mutator as its name says it changes the value that I am sending for this field, in my case I need to add one automatically every time I create a new record, so how can I do this?

eloquent laravel php
1 Answers

As @apokryfos mentioned in comment, best would be do it over creating event. Here what you should do, let's say your table is subscriptions with field subscriptions.approved_date and model is Subscription, here is very clean way of what you can do to achieve issued result:

1. php artisan make:observer SubscriptionObserver --model=Subscription

<?php

namespace App\Observers;

use App\Subscription;
use Carbon\Carbon;

class SubscriptionObserver
{
    /**
     * Handle the subscription "creating" event.
     *
     * @param Subscription $subscription
     * @return void
     */
    public function creating(Subscription $subscription)
    {
        $subscription->approved_date = Carbon::now()->format('Y-m-d');
    }
}

Note: I added creating() method, it isn't there by default.

2. php artisan make:provider SubscriptionServiceProvider

<?php

namespace App\Providers;

use App\Observers\SubscriptionObserver;
use App\Subscription;
use Illuminate\Support\ServiceProvider;

class SubscriptionServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        //
    }

    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        Subscription::observe(SubscriptionObserver::class);
    }
}

Notice line in boot() method.

3. Include provider into provider list of config/app.php

<?php

return [

    // other elements

    /*
    |------------------------------
    | Autoloaded Service Providers
    |------------------------------
    |
    | The service providers listed here will be automatically loaded on the
    | request to your application. Feel free to add your own services to
    | this array to grant expanded functionality to your applications.
    |
    */

    'providers' => [

        // other providers

        App\Providers\SubscriptionServiceProvider::class,

    ],
];

All this can be skipped and done in boot() model's method but shown way is easier to maintain for me.

user_9396300
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