Illuminate\Database\Eloquent\Model::unguard PHP Method

    public static function unguard($state = true)
    {
        static::$unguarded = $state;
    }

 /**
  * Run the database seeds.
  *
  * @return void
  */
 public function run()
 {
     Model::unguard();
     DB::statement("SET foreign_key_checks = 0");
     DB::table('roles')->truncate();
     DB::table('role_user')->truncate();
     DB::table('users')->truncate();
     DB::table('berita')->truncate();
     DB::table('kontak')->truncate();
     $this->call(UserTableSeeder::class);
     $this->call(BeritaTableSeeder::class);
     $this->call(KontakTableSeeder::class);
     $admin = App\User::find(1);
     $admin->attachRole(1);
     $mahasiswa = App\User::find(2);
     $mahasiswa->attachRole(2);
     $akademik = App\User::find(3);
     $akademik->attachRole(3);
     $rektor = App\User::find(4);
     $rektor->attachRole(4);
     $dekan = App\User::find(5);
     $dekan->attachRole(5);
     $kemahasiswaan = App\User::find(6);
     $kemahasiswaan->attachRole(6);
     $prodi = App\User::find(7);
     $prodi->attachRole(7);
     Model::reguard();
 }