Add a page in admin to view trust level 3 requirements for a user. Only shows for users who are currently at trust level 2.

app/models/leader_requirements.rb

@@ -0,0 +1,34 @@
+# This class performs calculations to determine if a user qualifies for
+# the Leader (3) trust level.
+class LeaderRequirements
+
+  include ActiveModel::Serialization
+
+  attr_accessor :days_visited, :time_period, :num_topics_with_replies, :num_topics_replied_to,
+                :num_flagged_posts
+
+  def initialize(user)
+    @user = user
+  end
+
+  def time_period
+    100 # days
+  end
+
+  def days_visited
+    # This is naive. The user may have visited the site, but not read any posts.
+    @user.user_visits.where("visited_at >= ?", time_period.days.ago).count
+  end
+
+  def num_topics_with_replies
+    @user.topics.where('posts_count > 1 AND participant_count > 1 AND created_at > ?', time_period.days.ago).count
+  end
+
+  def num_topics_replied_to
+    @user.posts.select('distinct topic_id').where('created_at > ? AND post_number > 1', time_period.days.ago).count
+  end
+
+  def num_flagged_posts
+    @user.posts.where('created_at > ? AND (off_topic_count > 0 OR spam_count > 0 OR illegal_count > 0 OR inappropriate_count > 0 OR notify_moderators_count > 0)', time_period.days.ago).count
+  end
+end

app/models/user.rb

@@ -527,6 +527,10 @@ class User < ActiveRecord::Base
     last_sent_email_address || email
   end
 
+  def leader_requirements
+    @lq ||= LeaderRequirements.new(self)
+  end
+
   protected
 
   def cook