[Django]-Django ModelForm Meta

by

6👍

✅

your problem is that the class (and the Meta class) are processed at compile time, not when you instantiate your ObjectForm. at compile time, the model name is unknown. creating classes dynamically is possible, but a bit more complicated. as luck has it, the django devs have done the hard work for you:

>>> from django.forms.models import modelform_factory
>>> modelform_factory(MyModel)
<class 'django.forms.models.MyModelForm'>

update

So you want something like

def my_view(request):
    # ...
    MyForm = modelform_factory(MyModel)
    form = MyForm(request.POST) #  or however you would use a 'regular' form
👤second

3👍

Well, your basic error is that you are accessing model_name as a local variable, rather than as a model instance. That’s fairly basic Python.

But even once you’ve fixed this, it still wouldn’t work. The Meta class is evaluated at define time, by the form metaclass, rather than at runtime. You need to call forms.models.modelform_factory – you can pass in your modelform subclass to the factory, if you want to define some standard validation and/or fields.

form_class = modelform_factory(MyModel, form=MyModelForm)
👤Daniel Roseman

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