added artists, comments

app/models/artist_url.rb

@@ -0,0 +1,37 @@
+class ArtistUrl < ActiveRecord::Base
+  before_save :normalize
+  validates_presence_of :url
+  belongs_to :artist
+  
+  def self.normalize(url)
+    if url.nil?
+      nil
+    else
+      url.gsub!(/^http:\/\/blog\d+\.fc2/, "http://blog.fc2")
+      url.gsub!(/^http:\/\/blog-imgs-\d+\.fc2/, "http://blog.fc2")
+      url.gsub!(/^http:\/\/blog-imgs-\d+-\w+\.fc2/, "http://blog.fc2")
+      url.gsub!(/^http:\/\/img\d+\.pixiv\.net/, "http://img.pixiv.net")
+      url.gsub!(/\/+$/, "")
+      url + "/"
+    end
+  end
+  
+  def self.normalize_for_search(url)
+    if url =~ /\.\w+$/ && url =~ /\w\/\w/
+      url = File.dirname(url)
+    end
+    
+    url = url.gsub(/^http:\/\/blog\d+\.fc2/, "http://blog*.fc2")
+    url = url.gsub(/^http:\/\/blog-imgs-\d+\.fc2/, "http://blog*.fc2")
+    url = url.gsub(/^http:\/\/blog-imgs-\d+-\w+\.fc2/, "http://blog*.fc2")
+    url = url.gsub(/^http:\/\/img\d+\.pixiv\.net/, "http://img*.pixiv.net")    
+  end
+
+  def normalize
+    self.normalized_url = self.class.normalize(url)
+  end
+  
+  def to_s
+    url
+  end
+end