CODEWITHSUNDEEP
pythondjangomultiplechoicefield
Shiva Krishna Bavandla
Shiva Krishna Bavandla

Reputation: 26668

Django MultpleSelectionField usage and error

I have the following code

models.py

fitness_choices = (('wl', 'Weight Loss'), ('ft', 'Firming and Toning'),
                   ('yo', 'Yoga'), ('ot', 'Others'), )
periods_to_train = (('da', 'Daily'), ('ft', 'Few Times A Week'),
                    ('oa', 'Once A Week'), )

class Fitness(models.Model):
    fitness_goals = models.CharField(max_length=80, choices=fitness_choices)
    training_periods = models.CharField(max_length=5, choices=periods_to_train)

forms.py

class FitnessForm(ModelForm):
    fitness_goals = forms.MultipleChoiceField(
            choices=fitness_choices, widget=forms.CheckboxSelectMultiple)
    training_periods = forms.MultipleChoiceField(
            choices=DAYS_OF_WEEK, widget=forms.CheckboxSelectMultiple)

    class Meta:
          model = Fitness

views.py

from apps.services.forms import FitnessForm

def fitness(request):
    """ Creating a Fitness RFQ """
    fitness_rfq_form = FitnessForm()
    if request.method == 'POST':
        fitness_rfq_form = FitnessForm(request.POST)
        if fitness_rfq_form.is_valid():
            obj = fitness_rfq_form.save(commit=False)
            obj.user = request.user
            obj.save()
            return HttpResponseRedirect(reverse('home'))
    context = {'fitness_rfq_form': fitness_rfq_form}
    return render(request, 'services/fitness_rfq.html', context)

But when i am trying to submit i am getting the validation error as below

Select a valid choice. [u'wl', u'ft'] is not one of the available choices.

Select a valid choice. [u'0', u'1'] is not one of the available choices.

So why it was showing above validation error even though we have mentioned it as MultiplechoiceField in ModelForm ?

Upvotes: 0

Views: 47

Answers (1)

Anentropic
Anentropic

Reputation: 33833

You should not specify choices in the model field... this is the part that is failing validation.

Your form is working fine and the result of the multiple choice field is, of course, a list of selected choices. But then your model field is expecting a single value from the choices.

If you want to store the list of selected choices in a CharField you need to convert them to a string first, perhaps via json.dumps

Upvotes: 0

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