Question

i’m having a users model that has a method score, which actually gets a sum of the score of solved challenges :

  def score
    self.challenge_level_solutions.inject(0) do |sum, x|
        sum + x.challenge_level.points
    end
  end

Now, i have a Kaminari related controller action like :

  def index
    @users = User.page(params[:page])
  end

My problem is how i would go about displaying the user score in DESC order, that is show the users with a better score about others with a lower score. My view is :

<% @users.each_with_index do |user, index| %>
    <%= user.username %> - <%= user.score %>
    <br>
<% end %>

and shows :

1. user1 - 0 
2. user2 - 0 
3. user3 - 2 

Any ideas so that it shows properly, with user3 on the first place ?

Answer 1

def index
  @users = User.all.sort_by(&:score).reverse
  @users = Kaminari.paginate_array(@users).page(params[:page]).per(2)
end