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私は、ユーザー、製品、Oder、Oder_Itemsテーブルを作成しました。 これはeコマースのためのものですが、私は各製品に著者（ユーザ）がいなければなりません。 職人がエラーを与える：Laravelシーダー整合性制約違反1452
整合性制約違反1452は、子行を追加または更新できません： を外部キー制約が（ '2016'、 '製品'、CONSTRAINT 'products_user_id_foreign' FOREIGN KEY（ 'USER_ID' を失敗します）参照 'ユーザー' （ 'id'）ON DELETE CASCADE）。
移行作業が良好です。シードャー情報番号
移行ORDERS_ITEMS：
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateOrderItemsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('order_items', function (Blueprint $table) {
$table->increments('id');
$table->decimal('price', 5, 2);
$table->integer('quantity')->unsigned();
//--------// ogni item ha un prodotto ID
$table->integer('product_id')->unsigned();
$table->foreign('product_id')
->references('id')
->on('products')
->onDelete('cascade');
// Ogni item ha un ORDER ID, cosi possiamo filtrare tutti gli item degli ordini
$table->integer('order_id')->unsigned();
$table->foreign('order_id')
->references('id')
->on('orders')
->onDelete('cascade');;
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('order_items');
}
}
移行ORDERS
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateOrdersTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('orders', function (Blueprint $table) {
$table->increments('id');
$table->decimal('subtotal', 5, 2);
$table->decimal('shipping', 5,2);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('orders');
}
}
移行PRODUCTS
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateProductsTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
//Up creare table
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 255);
$table->string('slug');
$table->text('description');
//mostrare una piccola descrizione del prodotto
$table->string('extract', 300);
$table->decimal('price', 5, 2);
$table->string('image', 300);
//vedere se pubblico o no
$table->boolean('visible');
// unsigned solo valori positivi
//e fa riferimento al id category,
//Se si cancella, cancellerà tutti i prodotti con quella categoria
//Ogni prodotto ha una categoria
$table->integer('user_id')->unsigned();
$table->foreign('user_id')
->references('id')->on('users')
->onDelete('cascade');
$table->integer('category_id')->unsigned();
// relazioni
$table->foreign('category_id')
->references('id')
->on('categories')
->onDelete('cascade');
//crea // Ogni prodotto ha un autore(artista)
// ----//
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
//eliminare table
public function down()
{
Schema::drop('products');
}
}
移行USERS
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('lastname');
$table->string('username');
$table->string('birth');
$table->string('profile');
$table->string('country');
$table->string('province');
$table->string('address');
$table->string('address2');
$table->string('phone');
$table->string('usertype');
$table->string('email')->unique();
$table->string('password', 60);
$table->boolean('social');
$table->boolean('active')->default(0);
$table->string('confirm_token', 100);
$table->rememberToken();
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('users');
}
}
製品のシーダー
<?php
use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
//Con questo gli dico di usare il mio modello per questo SEEDER
use dixard\Product;
class ProductTableSeeder extends Seeder
{
/**
* Run the database seeds.
*
* @return void
*/
public function run()
{
DB::table('products')->insert([
'name' => 'Playera 1',
'slug' => 'playera-1',
'description' => 'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Delectus repellendus doloribus molestias odio nisi! Aspernatur eos saepe veniam quibusdam totam.',
'extract' => 'Lorem ipsum dolor sit amet, consectetur adipisicing elit.',
'price' => 275.00,
'image' => 'http://www.truffleshuffle.co.uk/store/images_high_res/Mens_Red_Batman_Graffiti_Logo_T_Shirt_hi_res.jpg',
'visible' => 1,
'created_at' => new DateTime,
'updated_at' => new DateTime,
'category_id' => 1,
'user_id' => 1,
]);
}
}
私はシーダーと呼ばれる：
<?php
use Illuminate\Database\Seeder;
use Illuminate\Database\Eloquent\Model;
class DatabaseSeeder extends Seeder
{
/**
* Run the database seeds.
*
* @return void
*/
public function run()
{
Model::unguard();
// $this->call(UserTableSeeder::class);
$this->call(CategoryTableSeeder::class);
$this->call(ProductTableSeeder::class);
Model::reguard();
}
}
製品テーブルをシードあなたは、ID = 1を持つすべてのユーザーを作成しています –