How to delete an attribute from a Devise user in Rails?

Question

I have a devise model that differs from the default. It has extra attributes.

For example, my devise user has an email, password, and also a career. I'd like to write a line of code that will delete the career from the currently signed in user. I like to imagine that it would look something like this

current_user.career.delete

This would ideally empty the career from the database, so that current_user.career would then return nil until the user is updated again to add a career.

How can I do this?

Hm, I have not found documentation on the github for devise. However, when I try to run this code, I get the error `wrong number of arguments (0 for 1+)` — johncorser, Oct 06 '14 at 20:38
could you add the relation between career and user model to the question — Mohammad AbuShady, Oct 06 '14 at 20:39
also make sure that `current_user.career` it self works fine — Mohammad AbuShady, Oct 06 '14 at 20:40
`puts current_user.career` outputs as expected. I added `career` to the devise user model using strong parameters and the sanitizer — johncorser, Oct 06 '14 at 20:53

score 1 · Accepted Answer · edited May 23 '17 at 12:20

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The delete method take the id or array of ids as parameter so you can simply use

current_user.career = nil
current_user.save

or you can set career to nil by create migration, see this question

change_column :users, :career, :string, :default => nil

see the documentation to learn more.

edited May 23 '17 at 12:20

Community

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answered Oct 06 '14 at 20:55

Alaa Othman

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Actually, this does not work because it only changes the value of current_user.career, it does not actually delete the information from the database. – johncorser Oct 06 '14 at 21:06
I also don't think I can use change_column because I want to do this as part of a larger script rather than in a separate migration. – johncorser Oct 06 '14 at 21:09

How to delete an attribute from a Devise user in Rails?

1 Answers1