On Tuesday, October 2, 2012 1:36:04 AM UTC-7, desbest wrote:
>
> @notification = Post.where(:noti_recipient => user.id, :noti_read =>
> 'no').order(:datetimenumber).last
>
> This looks innocent enough, fetching the last row of a query.
>
> But watch what happens when I try to use foreign keys in my template.
>
> #{@notification.user_id.username}
>
> undefined method `username' for 2:Fixnum
>
> However #{@notification.user_id} works fine.
>
> What is going on?
>
My guess is that user_id is a Fixnum, and you have not defined a
Fixnum#username method.
You probably want:
#{@notification.user.username}
assuming that you have created the appropriate association.
Jeremy
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