regarding multiple choice field

Question

I have many objects in categories. like

 English
 etc
 French

I tried to display that categories into multiplechocieField . So I'm using following code. But its just display last object like. French

Here is my forms.py

class UserProfileForm(forms.Form):
categories = Category.objects.all()
for c in  categories:
    CHOICES = ((c.id,c.name),)

answers = forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple, choices=CHOICES)

Will you please help me? thank you

UPDATE : I tried Chewie solution. But Now i'm getting TemplateSyntaxError at /users/profile/ Caught ValueError while rendering: need more than 1 value to unpack

Answer 1

You are reassigning (not appending) a new value to CHOICES in every iteration of the for loop. It should be something like:

class UserProfileForm(forms.Form):
categories = Category.objects.all()
CHOICES = []
for c in  categories:
    CHOICES.append((c.id, c.name))

answers = forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple, choices=CHOICES)

And anyway, perhaps you should be using a proper ForeignKey for that field.

But if you find yourself hacking choices to be dynamic, you're probably better off using a proper database table with a ForeignKey. choices is meant for static data that doesn't change much, if ever.

https://docs.djangoproject.com/en/1.3/ref/models/fields/#choices