Initial release of Discourse

app/controllers/list_controller.rb

@@ -0,0 +1,80 @@
+class ListController < ApplicationController
+
+  before_filter :ensure_logged_in, except: [:index, :category]
+  skip_before_filter :check_xhr
+
+  # Create our filters
+  [:popular, :favorited, :read, :posted, :unread, :new].each do |filter|
+    define_method(filter) do 
+
+      list_opts = {page: params[:page]}
+
+      # html format means we need to farm exclude from the site options
+      if params[:format].blank? or params[:format] == "html"
+        #TODO objectify this stuff
+        SiteSetting.top_menu.split('|').each do |f|
+          s = f.split(",")
+          if s[0] == action_name || (action_name == "index" && s[0] == "popular")
+            list_opts[:exclude_category] = s[1][1..-1] if s.length == 2
+          end
+        end
+      end
+      list_opts[:exclude_category] = params[:exclude_category] if params[:exclude_category].present?
+
+      list = TopicQuery.new(current_user, list_opts).send("list_#{filter}")
+      list.more_topics_url = url_for(self.send "#{filter}_path".to_sym, list_opts.merge(format: 'json', page: next_page))
+      
+      respond(list)
+    end    
+  end
+  alias_method :index, :popular
+
+  def category
+    
+    query = TopicQuery.new(current_user, page: params[:page])
+    list = nil
+
+    # If they choose uncategorized, return topics NOT in a category
+    if params[:category] == SiteSetting.uncategorized_name
+      list = query.list_uncategorized
+    else
+      category = Category.where(slug: params[:category]).includes(:featured_users).first
+      guardian.ensure_can_see!(category)
+      list = query.list_category(category)
+    end
+
+    list.more_topics_url = url_for(category_path(params[:category], page: next_page, format: "json"))
+    respond(list)
+  end
+
+  protected
+
+
+  def respond(list)
+
+    list.draft_key = Draft::NEW_TOPIC
+    list.draft_sequence = DraftSequence.current(current_user, Draft::NEW_TOPIC)
+    
+    draft = Draft.get(current_user, list.draft_key, list.draft_sequence) if current_user
+    list.draft = draft
+
+    # Add expiry of 1 minute for anonymous
+    expires_in 1.minute, :public => true if current_user.blank?
+
+    respond_to do |format|
+      format.html do
+        @list = list 
+        store_preloaded('topic_list', MultiJson.dump(TopicListSerializer.new(list, scope: guardian)))
+        render 'list'
+      end
+      format.json do
+        render_serialized(list, TopicListSerializer)
+      end
+    end
+  end
+  
+  def next_page
+    params[:page].to_i + 1
+  end
+
+end