[FLOW3-general] Validation and flashMessages

[Rudy Gnodde]

Hello all,

I am trying to create a simple Contact book. Using kickstart I've 
created the Controller, Model, Repository, etc. This worked fine, but 
now I want to add basic validation (NotEmpty) to several fields. When I 
try to create a new Contact and leave those fields empty I get the 
expected "This property is required." messages, but I also get a 
flashMessage "An error occurred while trying to call 
Wind\Petear\Controller\ContactController->createAction()".

After searching the code and online for a while I found this happens 
when you call an action and the given parameters don't validate. The 
only way I've found to give a clean error is to override the default 
getErrorFlashMessage method in my controller, check which action was 
called and return a better error message.

Is this the correct way to do it? Shouldn't the browser be redirected 
back to the newAction like (I think) it is in Extbase?

Thanks,

Rudy Gnodde