Actually, looking again at the source, it might be generally belter to use
self.base_fields. (Yes, my previous answer is not an exact copy of my code,
so I got it wrong).
On Sun, 18 Apr 2021 at 17:16, Shaheed Haque <shaheedha...@gmail.com> wrote:
>
>
> On Sun, 18 Apr 2021 at 14:38, sebasti...@gmail.com <
> sebastian.ju...@gmail.com> wrote:
>
>> Hello,
>>
>> Thanks for your fast response. But i don't know how i can
>> use self.declared_fields and why this would help me...
>>
>
> The "how" is easy. Here is a fragment from my code where the problem is
> that every instance of FilesForm has content dependent on external factors
> (the "..." below):
>
> class FilesForm(forms.Form):
> def __init__(self, *args, **kwargs):
> self.declared_fields = OrderedDict()
> for name, field in ....items():
> self.declared_fields[name] = field
> super().__init__(*args, **kwargs)
>
> The "why" is a deeper question, but in short, that's what the source code
> says the DeclarativeFieldsMetaClass for forms uses. Technically, I believe
> the code is a little ick because self.declared_fileds is a class member,
> not an instance member and so needs the funny-looking assignment so the
> instance has a value it can hack. You may need to copy the original dict as
> in "self.declared_fields = OrderedDict(self.declared_fields)" depending on
> your use case.
>
> (Generally, the Django docs are amazing, but this is one area where I
> needed the source.)
>
> Shaheed
>
>
>
>> Regards
>>
>> shahee...@gmail.com schrieb am Sonntag, 18. April 2021 um 15:14:03 UTC+2:
>>
>>> Try updating self.declared_fields instead.
>>>
>>> On Sun, 18 Apr 2021, 13:47 sebasti...@gmail.com, <sebasti...@gmail.com>
>>> wrote:
>>>
>>>> Hello,
>>>>
>>>>
>>>> *forms.py:*
>>>>
>>>> class Newsletterform(StandardMixin):
>>>> class Meta:
>>>> model = Newsletter
>>>> fields = ['newslettername', 'from_link', 'to_list',
>>>> 'email_subject', 'text_message', 'html_message' ]
>>>>
>>>> *Mixins.py:*
>>>> class StandardMixin(forms.ModelForm):
>>>> class Meta:
>>>> abstract = True
>>>>
>>>> def __init__(self, *args, **kwargs):
>>>>
>>>> self.Meta.fields.append('owner')
>>>> super(StandardMixin, self).__init__(*args, **kwargs)
>>>>
>>>>
>>>> *i would append in Meta.Fields owner and after this super. But in
>>>> Template this field are not shown. *
>>>>
>>>> *Why?*
>>>>
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>>>> .
>>>>
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