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

0 vote262 views1 answer
Lenght de un array php
PHP
0 vote287 views1 answer
Fuelphp authentication
PHP
2 votes302 views1 answer
Laravel create new request
PHP
3 votes294 views1 answer
Php strc types
PHP
0 vote294 views1 answer
Php get sql update from session
PHP
1 vote296 views1 answer
To find out where your php.ini is located
PHP
0 vote298 views1 answer
Auto complete order
PHP
1 vote315 views2 answers
Php clean html tags
PHP
0 vote295 views1 answer
Wordpress if is not page template
PHP
4 votes322 views3 answers
Php array formatter online
PHP