/PHP/Laravel/Foreign key laravel migration

Foreign key laravel 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');

Create foreign key laravel migration

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});

Laravel foreign key constraint

public function up()
{
    Schema::create('replies', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->text('body');
        $table->unsignedBigInteger('question_id');
        $table->integer('user_id')->unsigned();
        $table->foreign('question_id')->references('id')->on('questions')->onDelete('cascade');
        $table->timestamps();
    });
}

Source: stackoverflow.com

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

21 votes207 views6 answers
Laravel route parameters
PHP Laravel
5 votes199 views6 answers
Sync laravel
PHP Laravel
1 vote192 views1 answer
Laravel dusk run failed tests
PHP Laravel
1 vote225 views5 answers
Laravel collection methods
PHP Laravel
4 votes193 views3 answers
How to get the url parameter in blade laravel
PHP Laravel
1 vote250 views1 answer
Laravel multiple orderby
PHP Laravel
16 votes219 views4 answers
Wherenotnull laravel
PHP Laravel
0 vote178 views1 answer
Laravel number input positive only
PHP Laravel
33 votes152 views8 answers
Laravel faker
PHP Laravel
1 vote217 views5 answers
Jobs laravel
PHP Laravel