Hov can get the translated values in select? - django

Question

I get select with values Without and With. How can I get already translated values Без and С in django.po in a select?
models.py
CONFIRMATION_WITHOUT = 'without'
CONFIRMATION_OTHER = 'other'
CONFIRMATION_WITH = 'with'
CONFIRMATION_CHOICES = (
(CONFIRMATION_WITHOUT, _('Without')), #Без
(CONFIRMATION_OTHER, _('Other')), #Другое
(CONFIRMATION_WITH, _('With')), #С
)
income_proof = models.CharField(_('proof'), max_length=255, choices=CONFIRMATION_CHOICES, default=CONFIRMATION_WITHOUT)
#[u'without', u'with']
forms.py
income_proof = forms.ModelChoiceField(queryset=CreditPayment.objects.values_list('income_proof', flat=True).distinct(), widget=forms.Select(attrs={'class': 'selectpicker form-control', 'title':_("Income proof")}))
html
{{ form.income_proof }}
It is possible to make in the form, for example?
<select>
<option value = "CONFIRMATION_WITHOUT">Без</option>
</select>

Answer 1

For the form, you should not use a ModelChoiceField [Django-doc]. Indeed, you here do not select a model object, but a value. You thus should use a ChoiceField [Django-doc] instead.
As for the options, I think you want to use CONFIRMATION_CHOICES, since by using a queryset, you query the database, and you thus are only able to pick income_proofs that are already picked by other records.
from app.models import CONFIRMATION_CHOICES
from django import forms
class MyForm(forms.ModelForm):
income_proof = forms.ChoiceField(
choices=CONFIRMATION_CHOICES,
widget=forms.Select(
attrs={'class': 'selectpicker form-control', 'title':_('Income proof')}
)
)
or if you only want the values that were selected, you can use:
from app.models import CONFIRMATION_CHOICES
from django import forms
class MyForm(forms.ModelForm):
income_proof = forms.ChoiceField(
choices=[],
widget=forms.Select(
attrs={'class': 'selectpicker form-control', 'title':_('Income proof')}
)
)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
render = dict(CONFIRMATION_CHOICES)
self.fields['income_proof'].choices = [
(k, render.get(k, k))
for k in CreditPayment.objects.values_list('income_proof', flat=True).distinct()
]
Here the __init__ is called when we construct the form. We first let the super constructor do the work to create the fields, then make a dictionary of the CONFIRMATION_CHOICES.
Next, we perform a query (the same one you used) to get the database values for income_proof, and we use the dictionary to map these to the corresponding translations. We thus yield a list of 2-tuples as choices for that form field.
We here thus use the choices= parameter [Django-doc] which should contain:
choices
Either an iterable of 2-tuples to use as choices for this field, or a
callable that returns such an iterable. This argument accepts the same
formats as the choices argument to a model field. See the model
field reference documentation on choices for more details. If the
argument is a callable, it is evaluated each time the field's form is
initialized. Defaults to an empty list.