+ def __init__(self, *args, **kwargs):
+ initial = kwargs.get('initial', {})
+ authority_hrn = initial.get('authority_hrn', None)
+
+ # set just the initial value
+ # in the real form needs something like this {'authority_hrn':'a'}
+ # but in this case you want {'authority_hrn':('a', 'letter_a')}
+ if authority_hrn:
+ kwargs['initial']['authority_hrn'] = authority_hrn[0]
+
+ # create the form
+ super(SliceRequestForm, self).__init__(*args, **kwargs)
+
+ # self.fields only exist after, so a double validation is needed
+ if authority_hrn:# and authority_hrn[0] not in (c[0] for c in authority_hrn):
+ # XXX This does not work, the choicefield is not updated...
+ #self.fields['authority_hrn'].choices.extend(authority_hrn)
+ self.fields['authority_hrn'] = forms.ChoiceField( choices=authority_hrn)