ruby - Update a String Attribute in Rails -

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i trying update string attribute in database.

i tried using update_attribute isn't working. works integer attributes not string attributes.

how solve ?

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)

first off, there reason save name string in database? go through association name. 

@comment.user.name

i suggest add user_id comments table , use:

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

or

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

to update commenter.


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