Question

I have a rails app and I’m trying to set up pagination for a view of the Essays class. I’m new to rails… so I can do this for ALL of them, but I only want certain ones to be in this list (where all the essays are contained in Essay.find(Ranking.where(:user_id=>current_user.id).essay_id)).

home.html.erb contains (among other things):

`<%= will_paginate @essays%>

<ul class="users">
  <%= render @essays %>
</ul>

<%= will_paginate @essays%>`

in the Pages Controller:

def home
     #...
      @essays = Essay.paginate(:page => params[:page])
end

I tried adding @essays=Essay.find(Ranking.where(:user_id=>current_user.id).essay_id) before the @essays=Essay.paginate(:page => params[:page]) but the method essay_id for the Ranking class is not available here. How do I get around this? Thanks!

Answer 1

This should work:

Essay.joins(:rankings)
  .where(:rankings => {:user_id => current_user.id})
  .paginate(:page => params[:page])