added popular exploration, added order:rank

app/models/comment.rb

@@ -13,6 +13,7 @@ class Comment < ActiveRecord::Base
   scope :body_matches, lambda {|query| where("body_index @@ plainto_tsquery(?)", query).order("comments.id DESC")}
   scope :hidden, lambda {|user| where("score < ?", user.comment_threshold)}
   scope :post_tag_match, lambda {|query| joins(:post).where("posts.tag_index @@ to_tsquery('danbooru', ?)", query)}
+  scope :for_user, lambda {|user_id| where("creator_id = ?", user_id)}
   
   search_methods :body_matches, :post_tag_match
 

app/models/favorite.rb

@@ -1,4 +1,4 @@
 class Favorite < ActiveRecord::Base
   belongs_to :post
-  scope :for_user, lambda {|user_id| where("user_id = ?", user_id)}
+  scope :for_user, lambda {|user_id| where("user_id = #{user_id}")}
 end

app/models/forum_post.rb

@@ -8,6 +8,7 @@ class ForumPost < ActiveRecord::Base
   validates_presence_of :body, :creator_id
   validate :validate_topic_is_unlocked
   scope :body_matches, lambda {|body| where(["text_index @@ plainto_tsquery(?)", body])}
+  scope :for_user, lambda {|user_id| where("creator_id = ?", user_id)}
   search_methods :body_matches
   
   def self.new_reply(params)

app/models/note_version.rb

@@ -1,6 +1,7 @@
 class NoteVersion < ActiveRecord::Base
   before_validation :initialize_updater
   belongs_to :updater, :class_name => "User"
+  scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
   
   def initialize_updater
     self.updater_id = CurrentUser.id

app/models/pool_version.rb

@@ -5,6 +5,7 @@ class PoolVersion < ActiveRecord::Base
   belongs_to :pool
   belongs_to :updater, :class_name => "User"
   before_validation :initialize_updater
+  scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
   
   def initialize_updater
     self.updater_id = CurrentUser.id

app/models/post.rb

@@ -586,6 +586,10 @@ class Post < ActiveRecord::Base
         relation = relation.where("posts.rating <> 'e'")
       end
       
+      if q[:order] == "rank"
+        relation = relation.where("p.score > 0 and p.created_at >= ?", 0, 3.days.ago)
+      end
+      
       case q[:order]
       when "id", "id_asc"
         relation = relation.order("posts.id")
@@ -619,6 +623,9 @@ class Post < ActiveRecord::Base
       when "filesize_asc"
         relation = relation.order("posts.file_size")
 
+  	  when "rank"
+  	    sql << " ORDER BY log(3, p.score) + (extract(epoch from p.created_at) - extract(epoch from timestamp '2005-05-24')) / 45000 DESC"
+
       else
         relation = relation.order("posts.id DESC")
       end

app/models/post_version.rb

@@ -2,6 +2,7 @@ class PostVersion < ActiveRecord::Base
   belongs_to :post
   belongs_to :updater, :class_name => "User"
   before_validation :initialize_updater
+  scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
   
   def self.create_from_post(post)
     if post.created_at == post.updated_at

app/models/user_feedback.rb

@@ -9,6 +9,7 @@ class UserFeedback < ActiveRecord::Base
   scope :positive, where("category = ?", "positive")
   scope :neutral, where("category = ?", "neutral")
   scope :negative, where("category = ?", "negative")
+  scope :for_user, lambda {|user_id| where("user_id = ?", user_id)}
   
   def initialize_creator
     self.creator_id = CurrentUser.id

app/models/wiki_page_version.rb

@@ -1,6 +1,7 @@
 class WikiPageVersion < ActiveRecord::Base
   belongs_to :wiki_page
   belongs_to :updater, :class_name => "User"
+  scope :for_user, lambda {|user_id| where("updater_id = ?", user_id)}
   
   def updater_name
     User.id_to_name(updater_id)