lib/etsy4r/image_parser.rb in tcocca-etsy4r-0.2.0 vs lib/etsy4r/image_parser.rb in tcocca-etsy4r-0.3.0

@@ -4,36 +4,37 @@
     attr_accessor :listing_id, :parse_url, :images
     
     def initialize(listing_id)
       @listing_id = listing_id
       @parse_url = "http://www.etsy.com/view_listing.php?listing_id=#{@listing_id}"
-      @images = {}
-      get_images
     end
     
-    def get_images
+    def images
+      return @listing_images if @listing_images
+      
+      @listing_images = {}
       require 'hpricot'
       require 'open-uri'
       
       image_list = []
-      doc = open(parse_url) {|f| Hpricot(f)}
+      doc = open(@parse_url) {|f| Hpricot(f)}
       img_table = doc.search("/html/body/table/tr/td/table/tr[2]/td/table/tr[3]/td/table/tr[2]/td/table/tr/td[2]/table")
       img_table.first.search('img').each do |img|
         image_list << img.attributes['src']
       end
       image_list.each_with_index do |img_url, i|
         img_dom = /\/\/(\S*)\//.match(img_url)[1]
         img_id = /\.([\d]*)\./.match(img_url)[1]
-        @images["#{i}"] = {
+        @listing_images["#{i}"] = {
           "image_url_430xN" => "http://#{img_dom}/il_430xN.#{img_id}.jpg",
           "image_url_200x200" => "http://#{img_dom}/il_200x200.#{img_id}.jpg",
           "image_url_155x125" => "http://#{img_dom}/il_155x125.#{img_id}.jpg",
           "image_url_75x75" => "http://#{img_dom}/il_75x75.#{img_id}.jpg",
           "image_url_50x50" => "http://#{img_dom}/il_50x50.#{img_id}.jpg",
           "image_url_25x25" => "http://#{img_dom}/il_25x25.#{img_id}.jpg"
         }
       end
-      return @images
+      return @listing_images
     end
     
   end
 end