Ruby on Rails

On 3 April 2012 09:12, amvis <vgrkrishnan@gmail.com> wrote:
> class User < ActiveRecord::Base
>   has_one  :system_admin
> end
>
> @user = User.find_by_user_name(user_name)
>               if !@user.system_admins.nil?
>                  puts 'am a sys_admin'
>
> The above code gives error

Since you've defined the association as a has_one, you should use it
in the singular:
if !@user.system_admin.nil?

but "!...nil?" is a bit stinky; either use:
if @user.system_admin
or
unless @user.system_admins.nil?

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