Ruby On Rails 3 problem sorting query results

Question

I'm trying to order my results in descending order by created_at date, but the order.clause doesn't seem to be working. I'm afraid I've been looking at this for entirely too long and could totally benefit from a second (or third or more) set of eyes.

mailbox_controller.rb :

def show  
  current_user = User.find(session[:user_id])  
  @folder = Folder.where("user_id = #{current_user.id}").first  
  @msgs = @folder.messages.order("created_at DESC")  
  @messages = @msgs.where(["deleted IS NULL"] || ["deleted = ?", false]).paginate :per_page => 5, :page => params[:page]  
end

Answer 1

@msgs = @folder.messages.order("created_at DESC")
@messages = @msgs.where(["deleted IS NULL"] || ["deleted = ?", false])

should be

@messages = @folder.messages.order("created_at DESC").where("deleted = ? or deleted IS NULL", false)

Answer 2

I had a similar problem and it looks like the created_at you're going for belongs to Folder instead of messages.

Can you try with

@msgs = @folder.messages.order("messages.created_at DESC")