/**
* Returns default context's validators configuration. This method may be
* overrided in subclasses.
* @return array default config for [[getValidators()]].
* This value will be used in [[getValidators()]] if 'validators' property was not set.
*/
protected function defaultValidators()
{
return [FileValidator::className()];
}
/**
* @param $attribute
* @return array|null|object|Validator
*/
private function getValidator($attribute)
{
if (!($validator = @$this->attributes[$attribute]['validate'])) {
return null;
}
if ($validator instanceof Validator) {
return $validator;
}
if (is_array($validator)) {
isset($validator['class']) or $validator['class'] = FileValidator::className();
$validator['attributes'] = $attribute;
return $this->attributes[$attribute]['validate'] = Yii::createObject($validator);
}
if (is_string($validator)) {
return $this->attributes[$attribute]['validate'] = Validator::createValidator($validator, $this->owner, $attribute);
}
}
/**
* @throws \yii\base\InvalidConfigException
*/
protected function addValidator()
{
unset($this->validator['maxFiles']);
/* @var $validator \yii\validators\FileValidator|\yii\validators\ImageValidator */
$validator = \Yii::createObject(array_merge(['class' => $this->image ? \yii\validators\ImageValidator::className() : \yii\validators\FileValidator::className(), 'attributes' => [$this->attribute]], $this->validator));
$this->owner->getValidators()->offsetSet($this->getValidatorIndex(), $validator);
}
