|string> */ public function rules(): array { $rules = [ 'provider_id' => 'required|exists:providers,id', ]; return $rules; } /** * Get custom messages for validator errors. */ public function messages(): array { return [ 'provider_id.required' => __('requests.custom_schedule_available.provider_id_required'), 'provider_id.exists' => __('requests.custom_schedule_available.provider_not_found'), ]; } }