Question

I am working in Rails 2.3.x on a learning management system. Here’s my code:

[e-mail] do |user|
    %tr
        %td
            =link_to h(user.name), :action => :show_user, :id => user.id
        %td="#{h user.grade_level}"
        -if QuizResult.find_by_user_id(@user_id).present?
            ="#{(QuizResult.average('score', :conditions => 'user_id = #{@user.id}') * 100).round}%"
        -else
            %em No quizzes taken

My quiz_results table has columns for user_id and score, among others. I have a record with a user_id (3907) and result (0.1), and two users I’m looking at with no records in the quiz_results table.

The display says "No quizzes taken" for all three, which leads me to believe that this line is false no matter what:

-if QuizResult.find_by_user_id(@user_id).present?

Any ideas how to fix?

Answer 1

Change @user_id to user.id in the if statement and @user.id to user.id. Also change the single quotations to double quotations or using string interpolation won’t work.