/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

0 vote131 views1 answer
Upload image to database laravel 8
PHP Laravel
0 vote104 views1 answer
Text or description laravel database column type
PHP Laravel
0 vote115 views1 answer
Laravel where on relationsship column
PHP Laravel
2 votes102 views1 answer
Laravel get file name
PHP Laravel
0 vote115 views2 answers
Laravel check if string is url
PHP Laravel
0 vote104 views2 answers
Laravel PackageManifest.php: Undefined index: name
PHP Laravel
0 vote118 views1 answer
Url() inside laravel config files
PHP Laravel
0 vote142 views1 answer
Laravel mixed content error
PHP Laravel
0 vote105 views1 answer
Laravel eloquent many to many query using whereHas
PHP Laravel
0 vote115 views1 answer
Create a custom method laravel model
PHP Laravel