whats the difference between blank and null in models django?

Question

Hey guys whats the difference between blank and null in models django?

Sachin Singh · Answer

They often comes together in general you can say Null is for Database tables while Blank is for Django Forms. if you want to make a column nullable you mark it as null. if you want a form's field optional you make it blank.

Satya Karki · Answer

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/

Rijwan Ansari · Answer

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

Vijay · Answer

Thank you all

Harsh Shah · Answer

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 .

whats the difference between blank and null in models django?

Answers (5)