/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

2 votes150 views1 answer
How to run multiple laravel projects at same time
PHP Laravel
0 vote154 views1 answer
Laravel $browser->keys alt click
PHP Laravel
0 vote141 views5 answers
Get recoed between two datetime laravel
PHP Laravel
0 vote143 views1 answer
Laravel valet subdomain
PHP Laravel
-1 vote154 views4 answers
How to include file in laravel blade
PHP Laravel
4 votes148 views5 answers
Add csrf token laravel
PHP Laravel
4 votes157 views2 answers
Laravel eloquent sum column
PHP Laravel
0 vote144 views1 answer
Laravel form old value array
PHP Laravel
0 vote141 views1 answer
Arr::only laravel
PHP Laravel
12 votes146 views3 answers
How to log object laravel logger
PHP Laravel