bug fix for janitor trial mailer

app/models/janitor_trial.rb

@@ -26,20 +26,28 @@ class JanitorTrial < ActiveRecord::Base
 
   def self.message_candidates!
     admin = User.admins.first
+    n = 0
 
-    User.where("last_logged_in_at >= ? and created_at <= ? and email is not null and (favorite_count >= 300 OR post_upload_count >= 300) and bit_prefs & ? = 0", 1.week.ago, 6.months.ago, User.flag_value_for("can_approve_posts")).order("random()").limit(10).each do |user|
-      if !Dmail.where("from_id = ? and to_id = ? and title = ?", admin.id, user.id, "Test Janitor Invitation").exists?
-        favorites = user.favorites.order("random()").limit(400).map(&:post_id)
-        uploads = user.posts.order("random()").limit(400).map(&:id)
-        p50 = ActiveRecord::Base.select_value_sql("select percentile_cont(0.50) within group (order by score) from posts where id in (?)", favorites + uploads).to_f
-        
-        if p50 > 3 and p50 <= 10
-          CurrentUser.scoped(admin, "127.0.0.1") do
-            body = <<-EOS
-              Janitors on #{Danbooru.config.app_name} are responsible for helping maintain a high level of quality on the site. They approve uploads from other users and help with other moderation efforts. You would be expected at a minimum to approve a few posts a week. If you are interested, please respond to this message.
-            EOS
+    User.without_timeout do
+      User.where("last_logged_in_at >= ? and created_at <= ? and email is not null and (favorite_count >= 300 OR post_upload_count >= 300) and bit_prefs & ? = 0", 1.week.ago, 6.months.ago, User.flag_value_for("can_approve_posts")).find_each do |user|
+        if !Dmail.where("from_id = ? and to_id = ? and title = ?", admin.id, user.id, "Test Janitor Invitation").exists?
+          favorites = user.favorites.order("random()").limit(400).map(&:post_id)
+          uploads = user.posts.order("random()").limit(400).map(&:id)
+          p50 = ActiveRecord::Base.select_value_sql("select percentile_cont(0.50) within group (order by score) from posts where id in (?)", favorites + uploads).to_f
+          
+          if p50 > 3
+            n += 1
+            if n > 8
+              break
+            end
 
-            Dmail.create_split(:title => "Test Janitor Invitation", :body => body, :to_id => user.id)
+            CurrentUser.scoped(admin, "127.0.0.1") do
+              body = <<-EOS
+                Janitors on #{Danbooru.config.app_name} are responsible for helping maintain a high level of quality on the site. They approve uploads from other users and help with other moderation efforts. You would be expected at a minimum to approve a few posts a week. If you are interested, please respond to this message.
+              EOS
+
+              Dmail.create_split(:title => "Test Janitor Invitation", :body => body, :to_id => user.id)
+            end
           end
         end
       end