Django required field in model form


Question

I have a form where a couple of fields are coming out as required when I don't want them too. Here is the form from models.py

class CircuitForm(ModelForm):
    class Meta:
        model = Circuit
        exclude = ('lastPaged',)
    def __init__(self, *args, **kwargs):
        super(CircuitForm, self).__init__(*args, **kwargs)
        self.fields['begin'].widget = widgets.AdminSplitDateTime()
        self.fields['end'].widget = widgets.AdminSplitDateTime()

In the actual Circuit model, the fields are defined like this:

begin = models.DateTimeField('Start Time', null=True, blank=True)
end = models.DateTimeField('Stop Time', null=True, blank=True)

My views.py for this is here:

def addCircuitForm(request):
    if request.method == 'POST':
        form = CircuitForm(request.POST)
        if form.is_valid():
            form.save()
            return HttpResponseRedirect('/sla/all')
    form = CircuitForm()    
    return render_to_response('sla/add.html', {'form': form})

What can I do so that the two fields aren't required?

1
71
12/19/2015 9:42:33 AM

Accepted Answer

If you don't want to modify blank setting for your fields inside models (doing so will break normal validation in admin site), you can do the following in your Form class:

def __init__(self, *args, **kwargs):
    super(CircuitForm, self).__init__(*args, **kwargs)

    for key in self.fields:
        self.fields[key].required = False 

The redefined constructor won't harm any functionality.

111
9/15/2009 9:11:02 PM

If the model field has blank=True, then required is set to False on the form field. Otherwise, required=True

Says so here: http://docs.djangoproject.com/en/dev/topics/forms/modelforms/

Looks like you are doing everything right. You could check the value of self.fields['end'].required.


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