Encapsulate counts and totals into a class.

Move queries out of the view and into the model layer.

app/models/stats/totals.rb

@@ -0,0 +1,88 @@
+module Stats
+  class Totals
+
+    attr_reader :user
+    def initialize(user)
+      @user = user
+    end
+
+    def empty?
+      actions.empty?
+    end
+
+    def tags
+      @tags ||= tag_ids.size
+    end
+
+    def unique_tags
+      @unique_tags ||= tag_ids.uniq.size
+    end
+
+    def first_action_at
+      first_action.created_at if first_action
+    end
+
+    def projects
+      user.projects.count
+    end
+
+    def active_projects
+      user.projects.active.count
+    end
+
+    def hidden_projects
+      user.projects.hidden.count
+    end
+
+    def completed_projects
+      user.projects.completed.count
+    end
+
+    def contexts
+      user.contexts.count
+    end
+
+    def visible_contexts
+      user.contexts.active.count
+    end
+
+    def hidden_contexts
+      user.contexts.hidden.count
+    end
+
+    def all_actions
+      actions.count
+    end
+
+    def completed_actions
+      actions.completed.count
+    end
+
+    def incomplete_actions
+      actions.not_completed.count
+    end
+
+    def deferred_actions
+      actions.deferred.count
+    end
+
+    def blocked_actions
+      actions.blocked.count
+    end
+
+    private
+
+    def actions
+      user.todos
+    end
+
+    def first_action
+      @first_action ||= user.todos.reorder("created_at ASC").first
+    end
+
+    def tag_ids
+      @tag_ids ||= Stats::UserTagsQuery.new(user).result.map(&:id)
+    end
+
+  end
+end