[Flow] Custom Property Mapper and Validation

[Mathis Hoffmann]

Hello again,

I just found out that this is much easier to archive using the type 
hinting mechanism (adding a __type-attribute to the property by using a 
(hidden) form field <... property='__type' 
value='MyFullyQualifiedClassName' ..> ). That works so far fine for the 
creation of new objects. But I don't know how to add that type hint when 
fetching objects from persistence via a get request. Normally I would 
add a link like <f:link.action [...] arguments={argumentname: object} /> 
which results in a link containing the __identity. But the 
__type-attribute is missing and I really do not know how to include 
that. Any ideas? I would like to avoid using the concrete classnames in 
my controller..

Cheers
Mathis

Am 24.07.2013 18:41, schrieb Mathis Hoffmann:
> Hello,
>
> I've written my own type converter that allows property mapping of 
> inherited types. For example I have a CustomerInterface, a Customer 
> which is abstract and implements the interface and to concrete classes 
> BusinessCustomer and PrivateCustomer that inherit from Customer. I 
> have written an abstract type converter (http://pastebin.com/jmHtdrEj) 
> that provides the functionality and inherits from 
> PersistentObjectConverter. It basically determines the concrete type 
> based on a 'type'-parameter from the webform, adjusts the 
> $targetType-variable and hands the request over to the 
> convertFrom-method of PersistentObjectConverter. For every 
> interface-type I create a seperate converter that inherit from my 
> abstract converter and do some configuration (for example configure 
> which conrete types exists and so on). For the customer-example it 
> looks like the following: http://pastebin.com/dK1cvavQ .
>
> That works quite fine - exept that fact that the validation does not 
> work. Using my custom converter Flow only validates before persisting 
> the object and not before passing the mapped object to the controller. 
> Therefore I cannot display any validation errors in the form - instead 
> I get an uncaught exception.
>
> Does anyone know how to turn on validation in the property mapper? I 
> thought it should work because I only change the target type in my 
> custom converter and hand the work on to the Flow-internal converter.
>
> Cheers
> Mathis
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