====== Seeder en Laravel ======

[[informatica:programacion:php:frameworks:laravel|Laravel]]

Aprende a crear y ejecutar //seeders// en Laravel para llenar la base de datos con datos de prueba. 

===== Creación de seeder =====

<code>
php artisan make:seeder NombreSeeder
</code>

Ejemplo del código para un //seeder// de usuarios:

<code php><?php

namespace Database\Seeders;

use Illuminate\Database\Console\Seeds\WithoutModelEvents;
use Illuminate\Database\Seeder;
use App\Models\User;
use Illuminate\Support\Facades\Hash;

class UserSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        User::create([
            "name" => "TempWin",
            "email" => "tempwin@gmail.com",
            "password" => Hash::make("contraseña")
        ]);
    }
}
</code>
===== Ejecutar seeder =====

Para ejecutar todos:

<code>
php artisan db:seed
</code>

Para ejecutar uno:

<code>
php artisan db:seed --class=NombreSeeder
</code>

Para ejecutar las migraciones y seeder a la vez:

<code>
php artisan migrate:fresh --seed
</code>
===== Insertando relaciones simples =====

''app/database/seeders/DatabaseSeeder.php'':

<code php>
    // code
    
    public function run() 
    {
        
        $products = Product::factory(50)->create();
        
        $user = User::factory(20)->create();
        
        $orders = Order::factory(10)
                  ->make()
                  ->each(function($order) use ($users) {
                      $order->customer_id = $users->random()->id();
                      // Guardamos en base de datos ahora  que
                      // ya tenemos customer_id
                      $oder->save();
                      
                      $payment = Payment::factory()->make();
                      
                      $order->payment()->save();
                  });
    }
</code>

===== Insertando relaciones polimórficas =====

''app/database/seeders/DatabaseSeeder.php'':

<code php>
    // code
    
    public function run() 
    {
        
        $user = User::factory(20)->create()
                ->create()
                ->each(function $user) {
                      $image = Image::factory()
                          ->user()
                          ->make();
                      
                      $user->image()->save($image);
                });
        
        $orders = Order::factory(10)
                  ->make()
                  ->each(function($order) use ($users) {
                      $order->customer_id = $users->random()->id();
                      // Guardamos en base de datos ahora  que
                      // ya tenemos customer_id
                      $oder->save();
                      
                      $payment = Payment::factory()->make();
                      
                      $order->payment()->save();
                  });

        $carts = Cart::factory(20)->create();
        
        $products = Product::factory(50)
                    ->create()
                    ->each(function ($product) use ($orders, carts) {
                        $order = $orders->random();
                        
                        $order->products()->attach([
                            $product->id = ["quantity" => mt_rand(1, 3)]
                        ]);
                        
                        $cart = $carts->random();
                        
                        $cart->products()->attach([
                            $product->id => ["quantity" => mt_rand(1, 3)]
                        ]);
                    });
                    
                    $image = Image::factory(mt_rand(2, 4))->make();
                    $product->images()->saveMany($images);

    }
</code>