/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

1 vote201 views1 answer
Get age with carbon in laravel
PHP Laravel
6 votes211 views2 answers
Laravel 6 get user id
PHP Laravel
0 vote207 views1 answer
Laravel post index method
PHP Laravel
20 votes222 views6 answers
Laravel 8 make:auth
PHP Laravel
10 votes198 views6 answers
Table laravel
PHP Laravel
15 votes219 views6 answers
Laravel db transaction
PHP Laravel
0 vote205 views1 answer
Laravel migrate test environment
PHP Laravel
1 vote191 views1 answer
Searchable dropdown laravel blade
PHP Laravel
0 vote147 views1 answer
Laravel migration first or model first
PHP Laravel
0 vote183 views1 answer
Laravel price database
PHP Laravel