How to get some eager loading to work


I am working on a query for the index action of a events_controller. I
fetch all the events followed by two methods which fetch for the users
and the event_categories related to the @events collection:

@events = Event.paginate_by_sql(“SELECT DISTINCT,
events.start_date, events.title,, events.user_id,
JOIN attendances ON attendances.event_id =
(events.neighborhood_id = 1) AND ((events.private = 0) OR
(events.private = 1 AND attendances.user_id = 1))
events.created_at DESC”, :page => params[:page], :per_page =>

This two methods do the eager loading of users who created the

event and the category name of the event

User.find :all, :select => “ as users_id, as
users_name, users.lastname, users.neighborhood_id”, :conditions =>
[“id in (?)”, @events.collect(&:user_id)]

EventCategory.find :all, :select =>
“”, :conditions => [“id in (?)”,

I know I somehow need to do something more to make this work on my
view where I loop through the @events collection showing the title,
description…and well the user name who created the event and the
category name. That’s where I get lost. Can anyone tell me how to
associate those eager loaded arrays of users and categories to each
event on the loop? Right now I have something like this on my view. I
don’t want those “” and other methods… to
execute a query on each loop.

<% for event in @events %>

> <%=h nice_date(event.start_date) %> <%= link_to event.title, neighborhood_event_path(event.user.neighborhood,event) %> <%=h %> <%= link_to event.user.displayname, user_path(event.user) %> <%=h %> <% end %>

Many thanks,


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