move vote similarity code into danbooru, add listing for super voters

app/models/post_vote.rb

@@ -12,6 +12,18 @@ class PostVote < ActiveRecord::Base
     where("created_at < ?", 30.days.ago).delete_all
   end
 
+  def self.positive_user_ids
+    select_values_sql("select user_id from post_votes where score > 0 group by user_id having count(*) > 100")
+  end
+
+  def self.negative_post_ids(user_id)
+    select_values_sql("select post_id from post_votes where score < 0 and user_id = ?", user_id)
+  end
+
+  def self.positive_post_ids(user_id)
+    select_values_sql("select post_id from post_votes where score > 0 and user_id = ?", user_id)
+  end
+
   def score=(x)
     if x == "up"
       Post.where(:id => post_id).update_all("score = score + #{magnitude}, up_score = up_score + #{magnitude}")

app/models/super_voter.rb

@@ -13,18 +13,11 @@ class SuperVoter < ActiveRecord::Base
 
   def self.init!
     prune!
-    report = Reports::UserSimilarity.new(User.admins.first.id)
-    report.prime("post_vote_similarity")
+    report = PostVoteSimilarity.new(User.admins.first.id)
 
-    report.result.scan(/\S+/).in_groups_of(2).each do |user_id, score|
-      unless where("user_id = ?", user_id.to_i).exists?
-        create(:user_id => user_id)
-      end
-    end
-
-    User.admins.each do |user|
-      unless where("user_id = ?", user.id).exists?
-        create(:user_id => user.id)
+    report.calculate_positive.each do |element|
+      unless where("user_id = ?", element.user_id).exists?
+        create(:user_id => element.user_id)
       end
     end
   end