Re: Foreign key in a ModelForm

I get the same, an empty select.


El sábado, 8 de agosto de 2015, 22:49:19 (UTC+2), James Schneider escribió:

Try removing the .values_list() portion of the query set in your ModelForm. You should be passing a query set, not a list of values. The form knows how to iterate through the query set.

-James

On Aug 8, 2015 4:59 AM, <durir...@gmail.com> wrote:

I searched in the web for some example of setting a FK in a ModelForm (bound and unbound), but the examples I founded didn't worked for me. The best thing I think I've is this:

forms.py

class RegistroComentarioForm(ModelForm):
    def __init__(self, *args, **kwargs):
        super(RegistroComentarioForm, self).__init__(*args, **kwargs)
        # This is supossed to get all rows from a model. A "Comentario" has one "CategoriaComentario".
        # Maybe I should do a filter here when I bound data, but the problem is in the tests...
        self.fields['categoria'] = ModelChoiceField(
            queryset=CategoriaComentario.objects.all().values_list('id', 'nombre'),

            empty_label='...')
    # bla bla bla Meta bla bla bla fields...

tests.py

class RegistroComentarioFormTestCase(TestCase):
    def test_registrar_comentario(self):
        # Registro_Comentario_Form_X.
        r_c_f_a = RegistroComentarioForm({
            # I tried "'categoria': 1", but nothing.
            'enunciado': 'Eres tan fea que sólo te guiñan un ojo los '
                         'francotiradores.'
        })

        # Here is the problem. This prints:
        # <select id="id_categoria" name="categoria">

        # <option value="" selected="selected">---------</option>

        # </select>

        # <textarea cols="40" id="id_enunciado" maxlength="1000" name="enunciado"
        # placeholder="Sólo caracteres alfanuméricos, sin espacios, máx. 1000" rows="10">
                 # Eres tan fea que sólo te guiñan un ojo los francotiradores.</textarea>

        for campo in r_c_f_a:
            print(campo)

        self.assertTrue(r_c_f_a.is_valid())

So I don't have any CategoriaComentario available. In the docs they don't say much about ModelChoiceField, so I just don't know what to do.

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