The documentation made this seem trivial but I must be missing
something.
I have an order form with a many to many field to ArchivedFiles. I
want to just show file choices that start with the order number given
to the form at instantiation.
I almost works.
class OrderForm(ModelForm):
def __init__(self,*args,**kw):
self.ordernumber = '%06d'%kw.pop('ordernumber',0)
print 'myquery',self.myquery()
self.__class__.associated_files=ModelMultipleChoiceField(queryset=self.myquery(),required=False)
ModelForm.__init__(self,*args,**kw)
def myquery(self):
A=ArchivedFile.objects.filter(name__startswith=str(self.ordernumber))
return A
but now if i run it:
>>> F=OrderForm(ordernumber=000002)
myquery [<ArchivedFile: 2010/08/000002test.py>]
>>> m=F.fields['associated_files']
>>> m._queryset
[<ArchivedFile: 2010/08/test0.txt>, <ArchivedFile: 2010/08/test1.txt>,
<ArchivedFile: 2010/08/test2.txt>, <ArchivedFile: 2010/08/test3.txt>,
<ArchivedFile: 2010/08/000002test.py>]
I give a queryset that clearly has one item but the formfield ends up
with all 5 of the files.
what goes wrong with the queryset keyword system?
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