/Python/Django/Using default as none in django mdoels

Using default as none in django mdoels

>>> type('')
<class 'str'>
>>> type(None)
<class 'NoneType'>
>>>

Avoid using null on string-based fields such as CharField and TextField. 
If a string-based field has null=True, that means it has two possible values for “no data”: NULL, and the empty string. 
In most cases, it’s redundant to have two possible values for “no data;” 
the Django convention is to use the empty string, not NULL.
One exception is when a CharField has both unique=True and blank=True set. 
In this situation, null=True is required to avoid unique constraint violations when saving multiple objects with blank values.

Source: stackoverflow.com

Similar codes

2 votes271 views1 answer
Pass in queryset as filter django
Python Django
5 votes265 views1 answer
Q is not defined pylance django
Python Django
2 votes272 views2 answers
Django regexvalidator example
Python Django
0 vote255 views1 answer
Listing of django model types
Python Django
0 vote268 views1 answer
Django form set min and max value
Python Django
0 vote256 views2 answers
User logout in django rest framework
Python Django
17 votes307 views6 answers
Installing django
Python Django
2 votes259 views2 answers
Super in django manager
Python Django
1 vote247 views1 answer
Filter foreign fileds django_filters
Python Django
0 vote238 views1 answer
Django model plural
Python Django