/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

0 vote140 views1 answer
Check if a date is reached django
Python Django
1 vote127 views3 answers
Accessing data on django sessionstore
Python Django
0 vote152 views1 answer
Django dumpdata specific app
Python Django
0 vote120 views1 answer
Back button django template
Python Django
0 vote138 views1 answer
Staff user is not restricting permission in django
Python Django
-1 vote133 views1 answer
Django filter on related field
Python Django
1 vote121 views1 answer
How to get last values or data in django orm
Python Django
0 vote172 views1 answer
QuizListView login required django
Python Django
5 votes123 views4 answers
Django get or 404
Python Django
1 vote119 views1 answer
Filter foreign fileds django_filters
Python Django