/Python/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

21 votes339 views6 answers
Print statement in python
Python
81 votes333 views6 answers
String to date python
Python
0 vote377 views1 answer
Sumif in python on a column and create new column
Python
14 votes400 views6 answers
Python print variable
Python
0 vote422 views1 answer
Python NameError: name 'io' is not defined
Python
32 votes558 views3 answers
Convert list into integer python
Python
2 votes330 views2 answers
Selenium full screen python
Python
0 vote330 views1 answer
How to take array input in python in single line
Python
16 votes343 views1 answer
Which folder python os
Python
0 vote330 views1 answer
Pyqt button hover color
Python