public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(array('left_nscretinopathy_id, left_nscmaculopathy_id, left_nscretinopathy_photocoagulation,
left_nscmaculopathy_photocoagulation, right_nscretinopathy_id, right_nscmaculopathy_id,
right_nscretinopathy_photocoagulation, right_nscmaculopathy_photocoagulation, left_clinicalret_id,
right_clinicalret_id, left_clinicalmac_id, right_clinicalmac_id, eye_id', 'safe'), array('secondarydiagnosis_disorder_id', 'flagRequired', 'flag' => 'secondarydiagnosis_disorder_required'), array('left_nscretinopathy_id, left_nscmaculopathy_id, left_nscretinopathy_photocoagulation,
left_nscmaculopathy_photocoagulation, left_clinicalret_id, left_clinicalmac_id', 'requiredIfSide', 'side' => 'left'), array('right_nscretinopathy_id, right_nscmaculopathy_id, right_nscretinopathy_photocoagulation,
right_nscmaculopathy_photocoagulation, right_clinicalret_id, right_clinicalmac_id', 'requiredIfSide', 'side' => 'right'), array('event_id, left_nscretinopathy_id, left_nscmaculopathy_id, left_nscretionopathy_photocoagulation,
left_nscmaculopathy_photocoagulation, right_nscretinopathy_id, right_nscmaculopathy_id,
right_nscretinopathy_photocoagulation, right_nscmaculopathy_photocoagulation, left_clinicalret_id,
right_clinicalret_id, left_clinicalmac_id, right_clinicalmac_id, eye_id', 'safe', 'on' => 'search'));
}