ADD users/hovercard api

app/models/concerns/watchable.rb

@@ -6,6 +6,7 @@ module Watchable
     has_many :watcher_users, through: :watchers, source: :user, validate: false
 
     scope :watched_by, -> (user_id) { includes(:watchers).where(watchers: { user_id: user_id }) }
+    scope :following, -> (user_id) { watched_by }
   end
 
   def watched?(watchable)
@@ -21,6 +22,24 @@ module Watchable
     obj.destroy! if obj.present?
   end
 
+  # 我正在关注的、我追随的
+  def following
+    User.following(self.id)
+  end
+
+  def following_count
+    following.size
+  end
+
+  # 关注我的、我的粉丝、我的追随者
+  def followers
+    watcher_users
+  end
+
+  def followers_count
+    followers.size
+  end
+
   module ClassMethods
   end
 end