Equivalent to get_model for ModelForms?

Question

I have several ModelForm classes, each of which represents a different model. I would like to have a generic create function that loads the specified model form based on the URL parameter. Dynamic dynamic loading of the model can be obtained as follows:

model_name = 'TestModel'
m = get_model('AppLabel', model_name)

Does anyone know how I can achieve the same for ModelForms, something like:

modelform_name = 'TestModelForm'
f = get_form('AppLabel', modelform_name)
if f.is_valid():
    ...

I can’t think of a way to do this using common views - they need to pass a ModelForm, not just its name. If I get a model with get_model, then I pass it to the general view, it will display the form, but I can not exclude the model fields.

TIA for any advice

Answer 1

ModelForm, . ( ).

, :

• ModelForm : getattr .

• ModelForm , (< 30) : , ModelForm. :

  from some_app.forms import FirstModelForm
  from another_app.forms import SecondModelForm
  from additional_app.forms import FirstModelForm as AdditionalAppFirstModelForm # Will allow for managing conflicting names easily.
  
  form_mapping = {
      'FirstModelForm': FirstModelForm,
      'SecondModelForm': SecondForm,
      'AdditionalAppFirstModelForm': AdditionalAppFirstModelForm,
  }
  
  request_form_class = request.POST.get('form_class')
  f = form_mapping.get(request_form_class)(request.POST)
  
  if f.is_valid():
      f.save()
  

• . ModelForm BaseModelFormMetaclass . , , ModelForm Model "", . , .

( , , ), № 2.

Answer 2

forms.py forms. __init__.py ModelForm s.

sdolan Option # 1.