Update a String Attribute in Rails

Question

I am trying to update a string attribute in the database.

I tried using update_attribute but it isn't working. It works for integer attributes but not for String attributes.

How do i solve this ?

EDIT

code example:

@post = Post.find(params[:post_id])
@comment = @post.comments.create!(params[:comment])
@comment.update_attribute(:commenter,User.find_by_id(session[:user_id]).name)

You're doing something wrong. This answer is as specific as your question. — Mark Thomas
– Mark Thomas, Commented Sep 30, 2010 at 0:40
What is the error message, if any? What value is returned in the find statement? Could name be nil? — zetetic
– zetetic, Commented Sep 30, 2010 at 0:49
yea name is nil. Its not setting it to the userid from the session. but if i use the same(User.find_by_id(session[:user_id]).name) on a view page, I get the username. — Jayaram
– Jayaram, Commented Sep 30, 2010 at 0:53

Maran · Accepted Answer · 2010-09-30 08:55:40Z

4

First off, is there any reason you save the name as a string in the database? Normally you would go through the association to get the name.

@comment.user.name

I would really suggest you add a user_id to the comments table and then use:

@comment.user = User.find_by_id(session[:user_id])

or

@comment.update_attribute(:user_id, session[:user_id])

to update the commenter.

answered Sep 30, 2010 at 8:55

Maran

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