/PHP/Laravel/Laravel 8 foreign key migration

Laravel 8 foreign key migration

Laravel foreign key

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});
OR
Schema::table('posts', function (Blueprint $table) {
    $table->foreignId('user_id')->constrained();
});

Make a forign key in migrations using laravel 8

$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');

Laravel migration rollback

To rollback one step:

php artisan migrate:rollback

To rollback multiple steps:

php artisan migrate:rollback --step=[x]
  
To drop all tables and reload all migrations:

php artisan migrate:fresh

Create foreign key laravel migration

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Laravel 8 foreign key migration

use Illuminate\Database\Schema\Blueprint;use Illuminate\Support\Facades\Schema;Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Source: laravel.com

Laravel 8 foreign key

Schema::table('posts', function (Blueprint $table) {
    $table->foreignId('user_id')->constrained();
});

Source: laravel.com

Similar codes

0 vote224 views1 answer
Laravel raw query join many to many
PHP Laravel
1 vote215 views2 answers
Laravel get query output
PHP Laravel
1 vote242 views1 answer
Fecade Artisan:call laravel
PHP Laravel
0 vote211 views1 answer
Laravel collection flatMap
PHP Laravel
0 vote220 views1 answer
Editing items in collection in laravel 8
PHP Laravel
0 vote235 views1 answer
Php value to javascript variable laravel blade
PHP Laravel
1 vote303 views1 answer
Laravel mongodb delete
PHP Laravel
0 vote233 views1 answer
Laravel factory get foreign key
PHP Laravel
7 votes210 views2 answers
Laravel field types from database field type
PHP Laravel
0 vote222 views1 answer
Laravel Read multiple file extensions
PHP Laravel