Question

Suppose i have an entity
ServiceOffer{id ...}
and
ServiceOfferCapabilities{serviceoffer_id , capability_id,value } .

ServiceOffer has a collection of ServiceOfferCapabilities (one to many) . All i want is display a form of ServiceOffer and let the user choose the value he wants for each capability.

Well no matter what i do this is very difficult. Because i dont know how to create formType for ServiceOfferCapabilities. I add value as text for example but i dont know how to add capability.
I can make it work but on submit there are problems , because it doesnt know which is the capability and it sets it to null. I tried hidden but it fails to create a capability object with desired id.. Any workaround?

Answer 1

Seems to look that you need something like data translator that (from link)

Say you have a one-to-one relation of Task to Issue, e.g. a Task
optionally has an issue linked to it. Adding a listbox with all
possible issues can eventually lead to a really long listbox in which
it is impossible to find something. You might want to add a textbox
instead, where the user can simply enter the issue number.

You could try to do this in your controller, but it’s not the best
solution. It would be better if this issue were automatically
converted to an Issue object. This is where Data Transformers come
into play.