CheckboxSelectMultiple widget not ticked correctly according to loaded CharField value

So I have a form:

class ProjectUpdateForm(ModelForm):

    products = MultipleChoiceField(label = u'Products', widget=CheckboxSelectMultiple)

    def __init__(self, *args, **kwargs):

        self.fields['products'].choices = [(x.code, x.name) for x in Product.objects.order_by('code')]

    ....

which was referenced from a view:

class ProjectUpdateView(UpdateView):

    model = Project

    form_class = ProjectUpdateForm

    ....

The products field can be created from a similar form successfully and saved to database CharField as a list of values. Eg. [u'A01', u'A02']. But for this update view, the corresponding checkboxs always keep unchecked, neglecting the field value of the model object.

What did I miss? Thanks in ad!

~hanson

--
You received this message because you are subscribed to the Google Groups "Django users" group.
To post to this group, send email to django-users@googlegroups.com.
To unsubscribe from this group, send email to django-users+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/django-users?hl=en.