内联验证器功能不适用于yii2中的模型

Question

I am creating offer for products thats why I have implemented several model at create function in controller

public function actionCreate()
{
    $model = new Offer();
    $wmodel = new Wmoffer();
    $pmodel = new Product();
    $ummodel = new Unitofmeasurement();
    $qvmodel = new OfferingValue();
    $blmodel = new OfferLocation();

   if ($model->load(Yii::$app->request->post()) && $model->validate()) {
    // code manipulation
   }else{
       return $this->render('create', [
            'model' => $model,
            'wmodel' => $wmodel,
            'pmodel' => $pmodel,
            'qvmodel' => $qvmodel,
            'blmodel' => $blmodel,
            'ummodel' => $ummodel
        ]); 
   }

all of my model extends by ActiveRecord aspect Wmoffer() this model looks like as below

use Yii;
use yii\base\Model;
use yii\web\UploadedFile;
use yii\helpers\FileHelper;

class Wmoffer extends Model
{
   public $bIsProductOrService;
   public $iCatalogueID;
   public $imageProduct;
   public $nHasCurrencyValue;
   public $nHasCurrencyValueMRP;
   public $BusinesslocationIds;


   public function rules() 
   { 
     // validation rules 

Now i need to implement inline validator for start,end date comparison [Start Date should be greater than End Date ]

i have tried this and this but this is not working i know something is missing which causes this Any suggestions will be appreciable. Thanks

Answer 1

You should check $model->errors value after calling $model->validate() to look for validation errors.

Your dates validator method can be something like:

public function validateDates($attribute, $params) {
    if ($this->hasErrors()) {
        return;
    }
    if ($this->dateStart > $this->dateEnd)) {
        $this->addError($attribute, 'Start date can not be greater than end date');
    }
}

Add it to rules() in your backend models.