[FLOW3-general] Validation and flashMessages

[Bastian Waidelich]

Rudy Gnodde wrote:

Hi Rudy,

> 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()".

To avoid this technical error message, simply override the method 
getErrorFlashMessage() in your (abstract) controller and return FALSE 
(see [1]).


> 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?

When there are validation errors you *are* redirected to the previous 
action. Unlike Extbase, by default Flow won't re-submit the previously 
submitted mapped data though (I guess this will change in Extbase, too).

The Fluid Form ViewHelpers take care of redisplaying the submitted data, 
if you use them correctly:


<f:form action="create" objectName="newContact">
	<f:form.textfield property="firstName" />
</f:form>

BTW: Fluid will also give the rendered input field a CSS class if the 
related property contained validation errors


[1] 
http://git.typo3.org/FLOW3/Packages/TYPO3.FLOW3.git/blob/HEAD:/Classes/TYPO3/Flow/Mvc/Controller/ActionController.php#l411

HTH

-- 
Bastian Waidelich
--
Core Developer Team

TYPO3 .... inspiring people to share!
Get involved: typo3.org