Answers for "laravel delete cascade"

cascade in laravel migration

$table->dropForeign('answers_user_id_foreign');
$table->foreign('user_id')
->references('id')->on('users')
->onDelete('cascade');

how work cascade laravel

Schema::create('posts', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('author')->unsigned();
    $table->timestamps();
    $table->foreign('author')->references('id')->on('users')->onUpdate('cascade');
});

cascade laravel

Schema::create('posts', function (Blueprint $table) {
    $table->id();
    $table->foreignId('author')->constrained('users')->onDelete('cascade')->onUpdate('cascade');
    $table->timestamps();
});

laravel delete relationship data

class User extends Eloquent
{
    public function photos()
    {
        return $this->has_many('Photo');
    }

    // this is a recommended way to declare event handlers
    public static function boot() {
        parent::boot();

        static::deleting(function($user) { // before delete() method call this
             $user->photos()->delete();
             // do the rest of the cleanup...
        });
    }
}