> Hello,
>
> Sorry if I misunderstand, but what is wrong about using a ModelForm on your
> Film bounded to the film instance?
When I tried that I kept running into this error:
"Cannot set values on a ManyToManyField which specifies an
intermediary model. Use foo.FilmRole's Manager instead."
... which led me down a different path but perhaps I should have
persevered more.
I have googled this error extensively and spent some time digging into
Django internals to figure out what is happening. Basically I can see
that if Django didn't auto-generate the relationship manager class
then it will throw this error.
Conceptually I totally get why that is (it has no way of knowing what
values to assign to the extra fields). What I don't get is how I'm
supposed to get around it. Lets say I wanted to put some code
somewhere to munge the missing fields to some default value. Where
would I put that code?
I can't relate to the error message at all. I read about manager
classes and how I can override query sets and so on. Sure that
totally makes sense. But how does that help me here? How can I use
the manager for FilmRole? Do I need to override some method in my
manager? Which method? An example would be really useful here.
Thanks.
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