finished routes to add and remove subjects and educational_stages

app/controllers/v1/collections_controller.rb

@@ -8,10 +8,10 @@ class V1::CollectionsController < ApplicationController
   include ::SubjectableController
   include ::StageableController
 
-  before_action :authenticate_user!, except: [:create, :index, :show]
-  before_action :set_collection, only: [:show, :update, :destroy, :add_object, :delete_object]
+  before_action :authenticate_user!, only: [:create, :update, :destroy]
+  before_action :set_collection, only: [:show, :update, :destroy, :add_object, :delete_object, :subjecting, :unsubjecting, :add_stages, :remove_stages]
   before_action :set_new_collection, only: :index
-  before_action :authorize!, except: [:create, :tagging, :untagging, :subjecting, :unsubjecting, :add_stages, :remove_stages]
+  before_action :authorize!, except: [:create, :tagging, :untagging]
 
   # GET /v1/collections
   # GET /v1/collections.json

app/controllers/v1/learning_objects_controller.rb

@@ -9,10 +9,10 @@ class V1::LearningObjectsController < ApplicationController
   include ::SubjectableController
   include ::StageableController
 
-  before_action :authenticate_user!, except: [:create, :index, :show]
-  before_action :set_learning_object, only: [:show, :update, :destroy]
+  before_action :authenticate_user!, only: [:create, :update, :destroy]
+  before_action :set_learning_object, only: [:show, :update, :destroy, :subjecting, :unsubjecting, :add_stages, :remove_stages]
   before_action :set_new_learning_object, only: :index
-  before_action :authorize!, except: [:create, :tagging, :untagging, :subjecting, :unsubjecting, :add_stages, :remove_stages]
+  before_action :authorize!, except: [:create, :tagging, :untagging]
 
   def index
     learning_objects = paginate LearningObject.includes(:tags, :publisher, :language, :license, :subjects, :educational_stages, :reviews)

app/policies/collection_policy.rb

@@ -2,6 +2,8 @@ class CollectionPolicy < ApplicationPolicy
   include SociablePolicy
   include FollowablePolicy
   include TaggablePolicy
+  include SubjectablePolicy
+  include StageablePolicy
 
   class Scope < Scope
     def initialize(user, user_id, scope)

app/policies/learning_object_policy.rb

@@ -2,6 +2,8 @@ class LearningObjectPolicy < ApplicationPolicy
   include SociablePolicy
   include ReportablePolicy
   include TaggablePolicy
+  include SubjectablePolicy
+  include StageablePolicy
 
   class Scope < Scope
     def resolve