Username display

Greetings list,
I have a rather simple app with posts and comments. When a user submits
a comment (they must login), I want to display that user's username. I
have a field in the "comments" table for user_id, and I can get the
page to show the id, but I need to take it a step farther (because the
id means nothing to the public) and show the username associated with
the id.
I'm sure this is a simple 1 or 2-liner--any help?

<james@...> writes:

Greetings list,
I have a rather simple app with posts and comments. When a user submits
a comment (they must login), I want to display that user's username. I
have a field in the "comments" table for user_id, and I can get the
page to show the id, but I need to take it a step farther (because the
id means nothing to the public) and show the username associated with
the id.

if you have a

class Comment < ActiveRecord::Base
  belongs_to :user
end

then you can just call @comment.user.name (assuming that .name is a valid method
for User)

Alternatively, if you have

class User < ActiveRecord::Base
  def to_s
    name
  end
end

then you can just call @comment.user somewhere that expects a String and it'll
call .name automatically

Gareth