[TYPO3-mvc] Model object tree building with Tx_Extbase_Persistence_ObjectStorage property

[Franz Koch]

Hey,

AFAIK rendering nested objects belonging to objectStorages are not yet 
properly supported by Fluid yet.

>> Company
>>   name (string)
>>   contact (Tx_Extbase_Persistence_ObjectStorage of Person object)
>>   [...]
...
>> <f:form method="post" action="create" name="entry" object="{entry}">
>>    <f:form.textbox property="company.name" id="companyname" />
>> 	<f:form.textbox property="company.contact.forename" id="forename"/>
>> 	<f:form.textbox property="company.contact.lastname" id="lastname"/>
>> </f:form>
...

that can't work. Contact is a objectStorage, but you're building a form 
field that's no reflecting this. In your case "forname" would be a 
value/ID for a PersonObject as well as lastname.

> I can avoid the exception by using company.contact.0.forename for
> property, but this break the value recovery after redirect / forward
> from validator. Do anybody know why only these field values not get
> recovered  ?

That's going in the right direction, but the problem now is, that "0" is 
reflecting the UID/object-identifier - and once the object is created on 
submit, the object-identifier won't match "0" again but be some 
hash-value or if persisted a UID > 0.

Give the following a try in your controllers "form" action (so the 
action rendering the initial form, not the one responsible to process 
submitted form data):

if (!$entry->getCompany()->getContact()->count()) {
	$dummyPerson = $this->objectManager->getObject('Person');
	$entry->getCompany()->addContact($dummyPerson);
}

In your template you iterate over the person(s) then:

<f:for each="{company.contact}" as="contact">
	<f:form.textbox property="company.contact.{contact.uid}.forename" 
id="forename"/>
	<f:form.textbox property="company.contact.{contact.uid}.lastname" 
id="lastname"/>
</f:for>


Something like that should/could work - not tested though. If it's not 
working by assigning this properties, you have to take care of the 
correct form names yourself like this:

<f:form.textbox name="entry[company][contact][{contact.uid}][forname]" 
value="{contact.forname} id="forename"/>

This should work, as I used it lately for creating a form for 
dynamically adding query/filter-options to a list view.

-- 
kind regards,
Franz Koch