Django bootstrap3_datetime widget in admin site doesn't pass form data

I'm trying to replace the standard AdminSplitDateTime widget in my admin site for better functionality (basically I want to display only 'available' dates in my calender which I couldn't find how to do with the default picker). I decided to use the bootstrap3_datetime widget.

After overriding my field to use the new widget, it doesn't seem to be transferred into the 'clean' method (isn't in self.cleaned_data) for validation.

models.py

publish_time = models.DateTimeField('Date to publish')

admin.py

class MyForm(forms.ModelForm):

    def __init__(self, *args, **kwargs):

        super(MyForm, self).__init__(*args, **kwargs)

        bad_dates = []

        #populating bad_dates with application logic

    def clean(self):

        # This will always return None when using the new widget.

        # When working with the default widget, I have the correct value.

        publish_time = self.cleaned_data.get('publish_time', None)

    publish_time = forms.DateTimeField(widget=DateTimePicker(options=

            {"format": "DD-MM-YYYY HH:mm",

             "startDate": timezone.now().strftime('%Y-%m-%d'),

             "disabledDates": bad_dates,

             })

class MyModelAdmin(admin.ModelAdmin):

    form = MyForm

admin.site.register(MyModel, MyModelAdmin)

HTML-wise, the widget works well and the text field is populated with the correct date (and with the 'bad_dates' disabled). The problem is that it seems it isn't saved on the form.

I also tried initializing the widget in the init method by doing:

self.fields['publish_time'].widget = DateTimePicker(options=...)

But the result was the same.

I've analysed the POST request that is sent using each of the widgets. In the default admin widget, I see that it generates two fields: "publish_time_0" (for date) and "publish_time_1" (for time). In the bootstrap3 widget, only a single "publish_time" field is sent.

I'm assuming that the admin site understands that the field is a DateTimeField (from models), looks for id_0 and id_1 and that's why it fails. Does that make sense? Is there anyway around it?

Thanks a lot!

Ilia

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