/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 vote287 views1 answer
Laravel s3 presigned url
PHP Laravel
1 vote349 views1 answer
Break and continue in laravel
PHP Laravel
0 vote333 views1 answer
Laravel select only some columns relationship
PHP Laravel
0 vote303 views1 answer
Running a laravel app locally
PHP Laravel
0 vote309 views1 answer
Scribe laravel
PHP Laravel
0 vote306 views1 answer
Require and include difference in laravel
PHP Laravel
0 vote300 views1 answer
Create auto image path folder in laravel 8
PHP Laravel
5 votes331 views3 answers
Return view controller laravel
PHP Laravel
13 votes280 views6 answers
Laravel migration change column type
PHP Laravel
0 vote347 views1 answer
Pagination in api laravel
PHP Laravel