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

6 votes204 views2 answers
Installing livewire on laravel v6
PHP
0 vote201 views1 answer
Laravel resource set status code
PHP
6 votes224 views5 answers
Check php version linux terminal
PHP
3 votes202 views6 answers
Htaccess
PHP
10 votes228 views4 answers
Print last query laravel
PHP Laravel
1 vote217 views3 answers
Pdo fetch
PHP
1 vote186 views2 answers
Convert a php array into a javascript array
PHP
1 vote224 views1 answer
Laravel add timestamps to existing table
PHP
0 vote196 views1 answer
Sending HTML Code Through JSON
PHP
60 votes193 views4 answers
Echo errors php
PHP