all necessary apis implemented; untested

app.rb

@@ -41,7 +41,14 @@ config = YAML.load_file("config/application.yml")
 # DELETE /api/v1/votes/comment_threads/:comment_thread_id/users/:user_id
 #
 # GET /api/v1/users/:user_id/feeds
-# POST /api/v1/users/:user_id/feeds/subscribe
+# POST /api/v1/users/:user_id/follow
+# POST /api/v1/users/:user_id/unfollow
+# POST /api/v1/users/:user_id/watch/commentable
+# POST /api/v1/users/:user_id/unwatch/commentable
+# POST /api/v1/users/:user_id/watch/comment_thread
+# POST /api/v1/users/:user_id/unwatch/comment_thread
+#
+#
 #
 
 # DELETE /api/v1/commentables/:commentable_type/:commentable_id
@@ -182,6 +189,76 @@ delete '/api/v1/votes/comment_threads/:comment_thread_id/users/:user_id' do |com
   user.unvote(comment_thread)
 end
 
+# GET /api/v1/users/:user_id/feeds
+# get all subscribed feeds for the user
+
+get '/api/v1/users/:user_id/feeds' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  user.feeds.to_json
+end
+
+# POST /api/v1/users/:user_id/follow
+# follow user
+
+post '/api/v1/users/:user_id/follow' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  followed_user = User.find_or_create_by(external_id: params[:user_id])
+  user.follow(followed_user)
+  user.to_hash.to_json
+end
+
+# POST /api/v1/users/:user_id/unfollow
+# unfollow user
+
+post '/api/v1/users/:user_id/unfollow' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  followed_user = User.find_or_create_by(external_id: params[:user_id])
+  user.unfollow(followed_user)
+  user.to_hash.to_json
+end
+
+# POST /api/v1/users/:user_id/watch/commentable
+# watch a commentable
+
+post '/api/v1/users/:user_id/watch/commentable' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  commentable = Commentable.find_or_create_by(commentable_type: params[:commentable_type],
+                                              commentable_id: parasm[:commentable_id])
+  user.watch_commentable(commentable)
+  user.to_hash.to_json
+end
+
+# POST /api/v1/users/:user_id/unwatch/commentable
+# unwatch a commentable
+
+post '/api/v1/users/:user_id/unwatch/commentable' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  commentable = Commentable.find_or_create_by(commentable_type: params[:commentable_type],
+                                              commentable_id: parasm[:commentable_id])
+  user.unwatch_commentable(commentable)
+  user.to_hash.to_json
+end
+
+# POST /api/v1/users/:user_id/watch/comment_thread
+# watch a comment thread
+
+post '/api/v1/users/:user_id/watch/comment_thread' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  comment_thread = CommentThread.find(params[:comment_thread_id])
+  user.watch_comment_thread(comment_thread)
+  user.to_hash.to_json
+end
+
+# POST /api/v1/users/:user_id/unwatch/comment_thread
+# unwatch a comment thread
+
+post '/api/v1/users/:user_id/unwatch/comment_thread' do |user_id|
+  user = User.find_or_create_by(external_id: user_id)
+  comment_thread = CommentThread.find(params[:comment_thread_id])
+  user.unwatch_comment_thread(comment_thread)
+  user.to_hash.to_json
+end
+
 if env.to_s == "development"
   get '/api/v1/clean' do
     Comment.delete_all

models/comment.rb

@@ -19,7 +19,7 @@ class Comment
   validates_presence_of :course_id # do we really need this?
   #validates_presence_of :author # allow anonymity?
 
-  before_destroy :delete_descendants
+  before_destroy :delete_descendants # TODO async
   after_create :generate_feeds
   
   def self.hash_tree(nodes)

models/comment_thread.rb

@@ -11,7 +11,7 @@ class CommentThread
 
   belongs_to :author, class_name: "User", inverse_of: :comment_threads, index: true
   belongs_to :commentable, index: true
-  has_many :comments, dependent: :destroy # Use destroy to envoke callback on the top-level comments
+  has_many :comments, dependent: :destroy # Use destroy to envoke callback on the top-level comments TODO async
   has_and_belongs_to_many :watchers, class_name: "User", inverse_of: :watched_comment_threads
 
   attr_accessible :title, :body, :course_id

models/user.rb

@@ -19,13 +19,15 @@ class User
   index :external_id, unique: true
 
   def follow(user)
-    if self.id != user.id and not self.following.include? user
-      self.following << user
+    if id != user.id and not following.include? user
+      following << user
+      save!
     end
   end
 
   def unfollow(user)
-    self.following.delete(user)
+    following.delete(user)
+    save!
   end
 
   def self.watching(class_plural_sym)
@@ -38,13 +40,15 @@ class User
 
     self.class_eval <<-END
       def watch_#{class_single}(watching_object)
-        if not self.watched_#{class_plural}.include? watching_object
-          self.watched_#{class_plural} << watching_object
+        if not watched_#{class_plural}.include? watching_object
+          watched_#{class_plural} << watching_object
+          save!
         end
       end
 
       def unwatch_#{class_single}(watching_object)
-        self.watched_#{class_plural}.delete(watching_object)
+        watched_#{class_plural}.delete(watching_object)
+        save!
       end
     END
   end