CODEWITHSUNDEEP
djangodjango-forms
Suziemac Tani
Suziemac Tani

Reputation: 455

How do i render a form ModelChoicefield's attributes in django?

I have created my form like so,

class PartialOrderItemform(forms.Form):
        option = forms.ModelChoiceField(queryset = OptionalItems.objects.all(),widget= forms.RadioSelect())

        def __init__(self,item ,*args, **kwargs):
            super(PartialOrderItemform, self).__init__(*args, **kwargs)
            self.fields['option'].queryset = OptionalItem.objects.filter(item=item)

views.py

def show_item(request,id):
    ....
    final_form = form.PartialOrderItemform(item=id)
    ....

All the above is working just fine, my problem is rendering in the templates, doing some thing like this {% for option in form.option %} {{option}} works fine, why is this not working {{ option.price }}.

Clearly there is something i am not understanding thus my asking here, why can't i access the option's attributes and what is the right way to go about it.

Upvotes: 2

Views: 2560

Answers (3)

mariodev
mariodev

Reputation: 15594

Unfortunately ModelChoiceField's iterator only returns tuple (value, label), so you need to make some overriding to make it work, this link should help you out:

https://github.com/simensen/srcmvn.com/blob/master/source/_posts/2013-01-15-django-advanced-model-choice-field.md

Upvotes: 0

professorDante
professorDante

Reputation: 2405

Have you tried using a model_formset? Not sure why you're using a regular form and initialising the queryset twice, when you want to make a formset based on a filtered Model queryset. Something like this:

class PartialOrderItemformSet(BaseModelFormSet):
    def __init__(self, item, *args, **kwargs):
        super(PartialOrderItemformSet, self).__init__(*args, **kwargs)
        self.queryset = OptionalItem.objects.filter(item=item)

Now in your template you should be able to access the underlying Models unary methods inside your for loop with:

{{form.instance.price}}

Upvotes: 0

Daniel Roseman
Daniel Roseman

Reputation: 600041

You're not really supposed to iterate over form fields like that. Just do:

{{ form.option }}

Upvotes: 0

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