Remove memoizable (deprecated)

lib/linkser.rb

@@ -1,4 +1,3 @@
-require 'active_support'
 require 'linkser/version'
 
 module Linkser

lib/linkser/object.rb

@@ -3,9 +3,8 @@
 
 module Linkser
   class Object
-    extend ActiveSupport::Memoizable
-
     attr_reader :url, :last_url, :head
+
     def initialize url, last_url, head, options={}
       @url = url
       @last_url = last_url
@@ -14,6 +13,10 @@ def initialize url, last_url, head, options={}
     end
 
     def body
+      @body ||= build_body
+    end
+
+    def build_body
       uri = URI.parse last_url
       if uri.scheme and (uri.scheme.eql? "http" or uri.scheme.eql? "https")
         http = Net::HTTP.new uri.host, uri.port
@@ -32,9 +35,6 @@ def body
         return response.body
       end
     end
-
-    memoize :body
-
   end
 end
 

lib/linkser/objects/html.rb

@@ -7,18 +7,44 @@ module Objects
     class HTML < Linkser::Object
 
       def title
+        @title ||= build_title
+      end
+
+      def description
+        @description ||= build_description
+      end
+
+      def images
+        @images ||= build_images
+      end
+
+      def nokogiri
+        @nokogiri ||= Nokogiri::HTML(body)
+      end
+
+      def ogp
+        @ogp ||= build_ogp
+      end
+
+      def resource
+        @resource ||= build_resource
+      end
+
+      protected 
+
+      def build_title
         ogp && ogp.title ||
           (e = nokogiri.css('title')).first && e.text
       end
 
-      def description
+      def build_description
         ogp && ogp.description ||
           (e = nokogiri.css('meta').find { |meta|
                  meta.get_attribute("name").eql? "description"
                }) && e.get_attribute("content")
       end
 
-      def images
+      def build_images
         max_images = @options[:max_images] || 5
         Array.new.tap do |images|
           if ogp and ogp.image
@@ -52,11 +78,7 @@ def images
         end      
       end
 
-      def nokogiri
-        Nokogiri::HTML(body)
-      end
-
-      def ogp
+      def build_ogp
         ogp = OpenGraph::Object.new
         nokogiri.css('meta').each do |m|
           if m.attribute('property') && m.attribute('property').to_s.match(/^og:(.+)$/i)
@@ -66,14 +88,10 @@ def ogp
         ogp = false if ogp.keys.empty? || !ogp.valid?
         ogp
       end
-
-      def resource 
-        return Linkser::Resource.new ogp if ogp
-        return nil
-      end
 
-      memoize :nokogiri, :ogp,
-              :title, :description, :images, :resource
+      def build_resource 
+        Linkser::Resource.new ogp if ogp
+      end
 
       private
 

linkser.gemspec

@@ -25,7 +25,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency('rmagick', '~> 2.13.1')
   s.add_runtime_dependency('ruby-imagespec', "~> 0.2.0")  
   s.add_runtime_dependency('opengraph', "~> 0.0.4")
-  s.add_runtime_dependency('activesupport', "> 2.2.1")
 
   # Development Gem dependencies
   #