Question

I have a modelform and im creating additional fields (that do not exist in model) for its form.

I know you can reorder the fields in modelform like it says in the docs.

But the problem is – i want the additional fields to be rendered BEFORE the other fields.

Is it possible to somehow reorder the fields of the form before rendering? How does form object keep track of the order of its fields anyway?

Alan

Answer 1

No matter. It seems i found answer already and this seems to do the trick, since i have added 2 additional fields:

    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)

        self.build_fields()
        l = len(self.fields.keyOrder)
        for i in range(0,2):
            f = self.fields.keyOrder[l-1]
            self.fields.keyOrder.pop(l-1)
            self.fields.keyOrder.insert(0, f)

This above was my initial fix. Later on i found out that it did not cut any more. Then i did this :

class AlertForm(forms.ModelForm):
    class Meta:
        model = Message
        fields = model_fields

    def __init__(self, *args, **kwargs):
        super(AlertForm, self).__init__(*args, **kwargs)

        self.build_fields()
        newKeyOrder = []
        newKeyOrder.append('field_that_had_to_be_first')
        if typechange:
            newKeyOrder.append('field_thats_sometimes_necessary')
        newKeyOrder += model_fields 
        self.fields.keyOrder = newKeyOrder