Yii2: Conditional Validator always returns required

Question

I am trying to use Yii2's conditional validator as given in the guide like: Model code ``` public function rules() { // $discharged = function($model) { return $this->discharged == 1; }; return [ [[ 'admission_date','discharge_date', 'doctor_appointment_date', 'operation_date'], 'safe'], [[ 'package','tpa_name', 'discharged', 'bed_type', 'room_category', 'ref_doctor', 'consultant_doctor', 'operation_name'], 'integer'], [['advance_amount', 'operation_charges'], 'number'], [['patient_name', 'ref_doctor_other'], 'string', 'max' => 50], [['general_regn_no', 'ipd_patient_id'], 'string', 'max' => 20], [['admission_date', 'discharge_date', 'doctor_appointment_date', 'operation_date'],'default','value'=>null], ['ipd_patient_id', 'unique'], [['bed_type','admission_date','room_category'],'required'], ['discharge_date', 'required', 'when' => function($model) { return $model->discharged == 1; }], ]; } ``` and in my Controller like: ``` public function actionCreate() { $model = new PatientDetail()…

Accepted Answer

It seems that by default Yii2 will do validation in BOTH Server side and Client side. Check the example in `Conditional Validation` part of Yii2 doc:

```
['state', 'required', 'when' => function ($model) {
    return $model->country == 'USA';
}, 'whenClient' => "function (attribute, value) {
    return $('#country').val() == 'USA';
}"],
```

you also need a `'whenClient'` code, or as @Alexandr Bordun said, to disable the client validation by `'enableClientValidation' => false`.

Yii2: Conditional Validator always returns required

Solution

Problem