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');

Foreign key laravel migration

$table->foreign('column_name')->references('id')->on('table_name')->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

Similar codes

1 vote133 views1 answer
Laravel export make comman
PHP Laravel
0 vote119 views1 answer
Divi layout injector shortcode module in function php file
PHP
0 vote139 views2 answers
Share to facebook from website laravel
PHP Laravel
7 votes109 views3 answers
Laravel table in model
PHP
0 vote104 views1 answer
Long text in laravel migration
PHP
0 vote161 views1 answer
Referencing constant in config laravel
PHP Laravel
4 votes124 views2 answers
Get permalink by id wordpress
PHP
1 vote218 views2 answers
Magento2 zend log
PHP Zend
0 vote156 views1 answer
Unnamed place placeholders pdo
PHP
13 votes121 views6 answers
Route group in laravel
PHP