Forgot about ModelChoise. Thank you. On Sunday, 14 June 2015 22:37:26 UTC+3, Tom Evans wrote: > > On Sun, Jun 14, 2015 at 3:24 PM, Mark Nesterovych > <[email protected] <javascript:>> wrote: > > Hello. > > I've just finished small django site, and keep going on creating tests. > > I've found and issue with Model.objects.values_list method. > > Looks like it disregard test database and looks into production one. > > > > Some details. > > I have a form with a filed customer = > > forms.ChoiseField(choises=Customer.objects.values_list('id', 'name')) > > > > When this form initing during tests, it loads data from production > database. > > > > My test looks like this. > > class CustomerFormTest(TestCase): > > def setUp: > > self.customer = Customer.objects.create(name='test name') > > > > def test_form_creation(self): > > form = CustomerLoginForm() > > self.assertIn('test name', form.as_ul()) > > > > > > Assertion fails, and when I printing form content, I see select widget > with > > options from production database objects. > > > > Can somebody confirm it's a bug ? > > Thank you. > > It's not a bug. You are specifying the choices when the form is > defined, and at that point there is nothing in the database and so the > form has no choices. Since the field is never redefined in the form, > the choices will be whatever existed in the database when the form is > defined, which is a bad way of designing the form. > > Typically, when your choices are instances of a model, you would not > use ChoiceField, but ModelChoicefield. ModelChoiceField takes a > queryset when defining the form, and avoids evaluating the queryset > until the form is instantiated, which avoids the issue. The > documentation also explains how you can specify the queryset more > dynamically if that is required. > > https://docs.djangoproject.com/en/1.8/ref/forms/fields/#modelchoicefield > > (I'm assuming that the typo "choises" is only present in your email, > and your code correctly says "choices" and "ChoiceField") > > Cheers > > Tom >
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