app/controllers/feed_controller.rb

   1 class FeedController < ApplicationController
   2
   3   # skip_before_filter :verify_authenticity_token
   4
   5   def index
   6     @feeds = FeedItem.select(:feed_name).distinct
   7     respond_to do |format|
   8       format.html
   9       format.rss { render :layout => false }
  10     end
  11   end
  12
  13
  14   def show
  15     if FeedItem::valid_feed_name?(params[:feed_name])
  16       @feed_name = params[:feed_name]
  17       @feed_items = FeedItem.in_feed(@feed_name)
  18       respond_to do |format|
  19         if @feed_items.empty?
  20           flash[:notice] = "No items in feed #{@feed_name}"
  21           format.html { redirect_to index_path }
  22           format.rss  { render :layout => false }
  23         else
  24           format.html
  25           format.rss { render :layout => false }
  26         end
  27       end
  28     else
  29       respond_to do |format|
  30         flash[:notice] = "Invalid feed name"
  31         format.html { redirect_to index_path }
  32         format.rss  { head :not_found}
  33       end
  34     end
  35   end
  36
  37
  38   def update
  39     if FeedItem::valid_feed_name?(params[:feed_name])
  40       item = FeedItem.in_feed(params[:feed_name]).entitled(params[:title]).take
  41       if item
  42         if params[:description].empty?
  43           destroy_item(item)
  44         else
  45           update_item(item)
  46         end
  47       else
  48         create_item
  49       end
  50     else
  51       respond_to do |format|
  52         flash[:notice] = "Invalid feed name"
  53         format.html { redirect_to index_path }
  54         format.rss  { head :not_found }
  55       end
  56     end
  57   end
  58
  59
  60   # private
  61
  62
  63   private def create_item
  64     item = FeedItem.new(:feed_name => params[:feed_name],
  65       :title => params[:title],
  66       :description => params[:description])
  67     item.save!
  68     flash[:notice] = "Element #{params[:title]} created"
  69     respond_to do |format|
  70       format.html { redirect_to feed_path(params[:feed_name]) }
  71       format.rss  { head :ok }
  72     end
  73   rescue ActiveRecord::RecordInvalid => error
  74     flash[:notice] = "Element #{params[:title]} could not be created"
  75     respond_to do |format|
  76       format.html { redirect_to feed_path(params[:feed_name]) }
  77       format.rss  { head :unprocessable_entity }
  78     end
  79   end
  80
  81
  82   private def update_item(item)
  83     if item.update_attribute(:description, params[:description])
  84       flash[:notice] = "Element #{params[:title]} updated"
  85       respond_to do |format|
  86         format.html { redirect_to feed_path(params[:feed_name]) }
  87         format.rss  { head :ok }
  88       end
  89     else
  90       flash[:notice] = "Element #{params[:title]} could not be updated"
  91       respond_to do |format|
  92         format.html { redirect_to feed_path(params[:feed_name]) }
  93         format.rss  { head :unprocessable_entity }
  94       end
  95     end
  96   end
  97
  98
  99   private def destroy_item(item)
 100     if item.destroy
 101       flash[:notice] = "Element #{params[:title]} deleted"
 102       respond_to do |format|
 103         format.html { redirect_to feed_path(params[:feed_name]) }
 104         format.rss  { head :ok }
 105       end
 106     else
 107       flash[:notice] = "Element #{params[:title]} could not be deleted"
 108       respond_to do |format|
 109         format.html { redirect_to feed_path(params[:feed_name]) }
 110         format.rss  { head :unprocessable_entity }
 111       end
 112     end
 113   end
 114
 115 end