M2M model field without `blank=True` should map to a serializer relationship with `allow_empty=False`. · Issue #2804 · encode/django-rest-framework · GitHub
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The real difference between blank=True and null=True may surprise you | by Code Review Doctor | Medium
![python - Working with forms in Django and checking if all the input fields are entered - Stack Overflow python - Working with forms in Django and checking if all the input fields are entered - Stack Overflow](https://i.stack.imgur.com/bnUxT.png)
python - Working with forms in Django and checking if all the input fields are entered - Stack Overflow
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How to remove 'This field is required' error from required field of ModelForm in django - Templates & Frontend - Django Forum
![NullBooleanField should use forms.NullBooleanField just like django. And BooleanField should support default=True · Issue #7722 · encode/django-rest-framework · GitHub NullBooleanField should use forms.NullBooleanField just like django. And BooleanField should support default=True · Issue #7722 · encode/django-rest-framework · GitHub](https://user-images.githubusercontent.com/6821546/112669866-7c660f00-8e60-11eb-9313-24410d290dc9.png)
NullBooleanField should use forms.NullBooleanField just like django. And BooleanField should support default=True · Issue #7722 · encode/django-rest-framework · GitHub
![NullBooleanField should use forms.NullBooleanField just like django. And BooleanField should support default=True · Issue #7722 · encode/django-rest-framework · GitHub NullBooleanField should use forms.NullBooleanField just like django. And BooleanField should support default=True · Issue #7722 · encode/django-rest-framework · GitHub](https://user-images.githubusercontent.com/6821546/112669326-dfa37180-8e5f-11eb-8859-8407b315f19b.png)