How To Exclude A Value In A ModelMultipleChoiceField?

Question

I do not want the logged in user to show up on this ModelMultipleChoiceField in order to restrict themselves from creating a following relationship with themselves? So how d

Answer 1

Define an __init__ method for the form class. Pass the logged in userid to the form while initializing it, this will work with a model form.

def __init__(self, *args, **kwargs):
    user_id = kwargs.pop('user_id')
    super(Add_Profile, self).__init__(*args, **kwargs)
    self.fields['follows'] = forms.ModelMultipleChoiceField(queryset=UserProfile.objects.filter(~Q(user_id=user_id)))

While initializing your form, you can pass user_id

address_form = Add_Profile(request.POST, user_id=request.user.id)

Answer 2

You can definitely do it using forms.Form instead of forms.ModelForm with something along the lines of this example in the docs:

from django import forms
from django.contrib.auth import get_user_model

class Add_Profile(forms.Form):
    follows = forms.ModelMultipleChoiceField(queryset=None)

    def __init__(self, user=None, *args, **kwargs):
        super(Add_Profile, self).__init__(*args, **kwargs)
        if user is not None:
            self.fields['follows'].queryset = get_user_model().objects.exclude(pk=user.pk)
        else:
            self.fields['follows'].queryset = get_user_model.objects.all()

Just pass in the user you wish to exclude when you instantiate the form:

form = Add_Profile()  # all users will be present in the dropdown
some_guy = User.objects.get(pk=4)
form = Add_Profile(user=some_guy)  # all users except some_guy will be present