/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

33 votes128 views6 answers
Chocolatey install
Python
0 vote139 views1 answer
How to add a list to dataframe in python
Python
9 votes132 views6 answers
What is enumerate in python
Python
1 vote108 views1 answer
Split string every nth character
Python
0 vote127 views1 answer
Sublime python build system
Python
107 votes121 views6 answers
Python do while loop
Python
0 vote128 views1 answer
Use a callable instead, e.g., use `dict` instead of `{}`
Python
0 vote133 views1 answer
Python method to filter vowels in a string
Python
0 vote123 views1 answer
Pytorch use multiple gpu
Python
1 vote139 views1 answer
How to print the text of varying length in python
Python