Yii custom model errors

Question

I am saving a model instance performing some actions in "beforeSave" model function.
I want to add some errors/messages to the model and then to get them in the controller and show to the user.
As far I have two ideas of how to implement this:

• Use a dummy attribute with ActiveRecord function "addError": $this->addError("dummy"=>"my message"); It is not the best way to do it as I'll have to invent new dummy attributes.
• Add a new property "custom_errors" to the model and function "addCustomErrors"

Maybe there is a built-in way to do it or an extension?
Anyway how can I do it?

Answer 1

You can use the addError() but there's no need to make up fake attributes. If an error doesn't relate to anything on the model itself then your doing something wrong :p

So in your case it would be something like:

 $this->addError('file', 'Something happened I wasn\'t pleased with');

If there are any other errors on the file attribute they'll acumlate so you don't need to worry about overwriting.

Answer 2

I don't see the problem here. Simply use addError() http://www.yiiframework.com/doc/api/1.1/CModel#addError-detail. The model is kept even after invoking save() on it, so you could just do something like

yourController()
{
   do_something();
   do_something();
   $model->save();
   $errors[]=do_what_you_have_to_do_to_define_the_errors_which_will_be_added();
   $model->addError(attribute, $errors);
   $this->render(viewWhereTheErrorWillBeDisplayed, $model);
}