I’m not sure if I fully understand, but by specifying the model attribute, Yii can add an error class to the label when it’s generated, so it can be styled differently. In general, the label is coloured red when an error occurs.
Thanks for the replies. So if I want to have the label text as (US$) and the "required" validation error text to be something different i.e. "USD cannot be blank", the only way to achieve this would be to change the label or override the validation error message?