Unique constrains failed

[Soumen Khatua]

Hi Folks,

I'm extending user model as OneToOneField in my own model. So it's mean one user can contain only one field. But if I'll try to do another request I getting unique contrainr failed so as of now it's absolutely fine. But my query is I want to handle this error and send a message to that user something like your data is already existed in our database. But I don't know how do that,please help my guys?!!

Thank you in advance

Regards, 

Soumen