Change Django ModelChoiceField to show users' full names rather than usernames

Question

I have a form in my Django app (not in admin) that allows staff members to select a user from a dropdown.

forms.ModelChoiceField(queryset = User.objects.filt         


        

Answer 1

You can also make one custom ModelChoiceField to which you can pass a function. That way if you have different fields for which you want different attributes to be displayed, you can have only 1 class:

class CustomModelChoiceField(forms.ModelChoiceField):
name_function = staticmethod(lambda obj: obj)

def __init__(self, name_function, *args, **kwargs):
    if not name_function is None: self.name_function = name_function
    super(CustomModelChoiceField, self).__init__(*args, **kwargs)

def label_from_instance(self, obj):
     return self.name_function(obj);

You can then call it as simply as this:

form_field = CustomModelChoiceField(
    lambda obj: obj.get_full_name(),
    queryset=Whatever.objects.all(),
)

You can also pass None in case you're doing some dynamic stuff and it'll just basically default to a regular ModelChoiceField. I'm not too much of a python guy but this works for me.