31065
Laravelの修得用にtwitterのクローンのようなものを作っていますが、php artisan migrate実行時にエラーが発生します。  
複数のテーブルから同一の外部キー制約を適用しているからでしょうか？

-create_users_table.php  

```

    use Illuminate\Support\Facades\Schema;
    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('email');
                $table->string('name');
                $table->string('image')->nullable();;
                $table->string('image_dir')->nullable();;
                $table->text('profile')->nullable();;
                $table->string('password');
                $table->rememberToken();
                $table->timestamps();
                $table->datetime('login_date');
            });
        }
    
        /**
         * Reverse the migrations.
         *
         * @return void
         */
        public function down()
        {
            Schema::drop('users');
        }
    }
    
```

-create_tweets_table.php  

```

    use Illuminate\Support\Facades\Schema;
    use Illuminate\Database\Schema\Blueprint;
    use Illuminate\Database\Migrations\Migration;
    
    class CreateTweetsTable extends Migration
    {
        /**
         * Run the migrations.
         *
         * @return void
         */
        public function up()
        {
            Schema::create('tweets', function (Blueprint $table) {
              $table->increments('id');
              $table->integer('user_id')->unsigned();
              $table->integer('reply_tweet_id')->nullable();
              $table->text('content');
              $table->timestamps();
    
              $table->foreign('user_id')
                  ->refarences('id')
                  ->on('users')
                  ->onDelete('cascade');
            });
        }
    
        /**
         * Reverse the migrations.
         *
         * @return void
         */
        public function down()
        {
            Schema::dropIfExists('tweets');
        }
    }
    
```

-create_favorites_table.php  

```

    use Illuminate\Support\Facades\Schema;
    use Illuminate\Database\Schema\Blueprint;
    use Illuminate\Database\Migrations\Migration;
    
    class CreateFavoritesTable extends Migration
    {
        /**
         * Run the migrations.
         *
         * @return void
         */
        public function up()
        {
            Schema::create('favorites', function (Blueprint $table) {
                $table->increments('id');
                $table->integer('user_id')->unsigned();
                $table->integer('tweet_id')->unsigned();
                $table->timestamps();
    
                $table->foreign('user_id')
                    ->refarences('id')
                    ->on('users')
                    ->onDelete('cascade');
    
                $table->foreign('tweet_id')
                    ->refarences('id')
                    ->on('tweets')
                    ->onDelete('cascade');
    
            });
        }
    
        /**
         * Reverse the migrations.
         *
         * @return void
         */
        public function down()
        {
            Schema::dropIfExists('favorites');
        }
    }
    
```

-実行結果
```

      [vagrant@localhost laravel_twitter]$ php artisan migrate
      Migration table created successfully.
    
      [Illuminate\Database\QueryException]                                                                                                                                          
      SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right s  
      yntax to use near ') on delete cascade' at line 1 (SQL: alter table `favorites` add constraint `favorites_user_id_foreign` foreign key (`user_id`) references `users` () on   
      delete cascade)                                                                                                                                                               
    
    
    
      [PDOException]                                                                                                                                                                
      SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right s  
      yntax to use near ') on delete cascade' at line 1                                                                                                                             
    
    
    [vagrant@localhost laravel_twitter]$ 
    
```
CC BY-SA 3.0
2016-12-09T12:37:28.287
31055
2016-12-10T01:07:04.717
19780
question
php mysql laravel
Laravel5.3でのphp artisan migrateのエラーについて
> SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in
> your SQL syntax; check the manual that corresponds to your MySQL server
> version for the right syntax to use near ') on delete cascade' at line 1
> (SQL: alter table `favorites` add constraint `favorites_user_id_foreign`
> foreign key (`user_id`) references `users` () on delete cascade)

`) on delete cascade` の近くで文法エラーとあるので、`SQL: ...` に書かれたSQLを見てみると、`references `
users` ()` で列名が指定されていません。

列名を指定している個所を確認すると…

```

    $table->foreign('user_id')
        ->refarences('id') // ここ
        ->on('users')
        ->onDelete('cascade');
    
```

…`refarences` は `references` ではありませんか？
CC BY-SA 3.0
2016-12-10T01:07:04.717
31065
2016-12-10T01:07:04.717
8000
31055
answer