using forms.DateField or forms.DateTimeField causes validation error on fields that should be optional

[Skylar Saveland <skylar.saveland@…>]

If you have a model like:

class Event(models.Model):
    ...
    end = models.DateTimeField(blank=True, null=True)
    ...

and a modelform like:

from django import forms
from events.models import Event

class EventForm(forms.ModelForm):
    
    end = forms.DateTimeField(('%m/%d/%Y %H:%M',),
            widget=forms.SplitDateTimeWidget(
                date_format='%m/%d/%Y',
                time_format='%H:%M',
            ),
            required=False
    )
    
    class Meta: 
        model = Event

submitting an empty field will cause a validation error.

[Skylar Saveland <skylar.saveland@…>]

class Event(models.Model):
    ... 
    end = models.DateTimeField?(blank=True, null=True) 
    ...

[Skylar Saveland <skylar.saveland@…>]

Can someone throw away this ticket?
... I'm going to make a properly formatted one

[Alex Gaynor]

Please use the preview button.

[dc]

Use must use DateTimeField with DateTimeInput or SplitDateTimeField with SplitDateTimeWidget.

[dc]

Duplicate of #8898