For example, the inline validator above could be moved into new components/validators/Country Validator class.
In this case we can use yii\validators\Validator::add Error() to set customized message for the model.
The method will return a boolean value indicating whether the validation succeeded or not.
If not, you may get the error messages from the yii\base\Model::$errors property.
For example, If you also need to support client-side conditional validation, you should configure the when Client property which takes a string representing a Java Script function whose return value determines whether to apply the rule or not. As you can see, these validation rules do not really validate the inputs.
Instead, they will process the values and save them back to the attributes being validated.]]
Its main purpose is to provide users with a better experience.
validating email addresses), you may call the validate() method of the desired validator, like the following: After validation, you can check if the validation succeeded or not by calling the has Errors() method, and then get the validation errors from the errors property, like you do with a normal model.
You may also access the dynamic attributes defined through the model instance, e.g., .
A complete processing of user input is shown in the following example code, which will ensure only integer values are stored in an attribute: for values that are not bound to any model.
If you only need to perform one type of validation (e.g.