In Model file function rules() : <?php array ( 'product_image_1, product_image_2, product_image_3' , 'file' , 'types' => 'jpg, gif, png' , 'allowEmpty' => true ), ?> In View file set form like this : <div class="form"> <?php $form = $this -> beginWidget ( 'CActiveForm' , array ( 'id' => 'products-form' , 'enableAjaxValidation' => false , 'htmlOptions' => array ( 'enctype' => 'multipart/form-data' ) )); ?> <p class="note">Fields with <span class="required">*</span> are required.</p> <?php echo $form -> errorSummary ( $model ); ?> <div class="row"> <?php echo $form -> labelEx ( $model , 'product_name' ); ?> <?php echo $form -> textField ( $model , 'product_name' , array ( 'size' => 60 , 'ma...