'datetime', 'ended_at' => 'datetime', ]; public function patient() { return $this->belongsTo(DepartmentPatient::class, 'rf_department_patient_id', 'department_patient_id'); } public function serviceMedical() { return $this->belongsTo(MisServiceMedical::class, 'rf_kl_service_medical_id', 'ServiceMedicalID'); } }