'date:Y-m-d', 'end_at' => 'date:Y-m-d', ]; public function modelFilter() { return App\Admin\Filters\HolidayApplyFilter::class; } public function store() { return $this->belongsTo(Store::class, 'store_id'); } public function employee() { return $this->belongsTo(Employee::class, 'employee_id'); } public function type() { // holiday_type return $this->belongsTo(Keyword::class, 'type_id', 'key'); } }