whats the difference between blank and null in models django?

Hi, Purpose of both are almost same but the difference is that null is for database validation and blank is for form validation.

 See links Shared by @Satya Karki for detail understanding.

 

Ragards,

Rijwan 

Both do almost the same thing, as the name suggests, but here is the difference:

 

Null: It is database-related. Defines if a given database column will accept null values or not. 

 

Blank: It is validation-related. It will be used during form validation when calling form.is_valid(). 

 

The default values of null and blank are false.

Hi, Blank check whether value can be blank in User input side or not. In contrart to this NULL checks whether null value allow in database or not. 

To allow required/not required field we have to check Blank for User side and NULL for Database side.

null=True/False related to database

blank=True/False related to form validation

 

 

check below sites for better understanding 

 

https://stackoverflow.com/questions/8609192/what-is-the-difference-between-null-true-and-blank-true-in-django#:~:text=In%20Very%20simple%20words%2C,entry%20of%20an%20empty%20value%20.

 

https://www.b-list.org/weblog/2006/jun/28/django-tips-difference-between-blank-and-null/