VRFS-2614 : Allow jam track to be hidden to non-admin users by setting available=false.

Model, controller, admin UI, web UI, and spec to verify non-available
jam_tracks can only be seen by admin users.

admin/app/views/admin/jam_tracks/_form.html.slim

@@ -1,8 +1,11 @@
 = semantic_form_for([:admin, resource], :html => {:multipart => true}, :url => resource.new_record? ? admin_jam_tracks_path : "#{ENV['RAILS_RELATIVE_URL_ROOT']}/admin/jam_tracks/#{resource.id}") do |f|
   = f.semantic_errors *f.object.errors.keys
   = f.inputs name: 'JamTrack fields' do
-
     = f.input :name, :input_html => { :rows=>1, :maxlength=>200 }
+    b style='margin-left:10px'
+      i
+        | JamTrack should only be made available (to end users) if all its sub-component are in place:
+    = f.input :available, as: :boolean
     = f.input :description, :input_html => { :rows=>5, :maxlength=>1000 }
     = f.input :bpm
     = f.input :tap_in_count

db/manifest

@@ -237,3 +237,4 @@ diagnostics_user_id_index.sql
 jam_track_updates.sql
 private_key_in_jam_track_rights.sql
 jam_track_tap_in.sql
+jam_track_available.sql

db/up/jam_track_available.sql

@@ -0,0 +1,3 @@
+ALTER TABLE jam_tracks ADD COLUMN available BOOLEAN NOT NULL DEFAULT FALSE;
+ALTER TABLE notifications DROP CONSTRAINT notifications_jam_track_right_id_fkey;
+ALTER TABLE notifications ADD  CONSTRAINT notifications_jam_track_right_id_fkey FOREIGN KEY (jam_track_right_id) REFERENCES jam_track_rights(id) ON DELETE CASCADE;

ruby/lib/jam_ruby/models/jam_track.rb

@@ -15,7 +15,8 @@ module JamRuby
     attr_accessible :name, :description, :bpm, :time_signature, :status, :recording_type,
                   :original_artist, :songwriter, :publisher, :licensor, :licensor_id, :pro, :genre, :genre_id, :sales_region, :price,
                   :reproduction_royalty, :public_performance_royalty, :reproduction_royalty_amount,
-                  :licensor_royalty_amount, :pro_royalty_amount, :plan_code, :tap_in_count, :initial_play_silence, :jam_track_tracks_attributes, :jam_track_tap_ins_attributes, as: :admin
+                  :licensor_royalty_amount, :pro_royalty_amount, :plan_code, :tap_in_count, :initial_play_silence, :jam_track_tracks_attributes, 
+                  :jam_track_tap_ins_attributes, :available, as: :admin
 
     validates :name,            presence: true, uniqueness: true, length: {maximum: 200}
     validates :description,     length: {maximum: 1000}
@@ -53,7 +54,7 @@ module JamRuby
     accepts_nested_attributes_for :jam_track_tap_ins, allow_destroy: true
 
     class << self 
-      def index(options = {})
+      def index(options = {}, force_all=false)
         limit = options[:limit]
         limit ||= 20
         limit = limit.to_i
@@ -65,6 +66,7 @@ module JamRuby
                         .offset(start)
                         .limit(limit)
         
+        query = query.where("jam_tracks.available = ?", true) unless force_all
         query = query.where("jam_tracks.genre_id = '#{options[:genre]}'") unless options[:genre].blank?
         query = query.where("jam_track_tracks.instrument_id = '#{options[:instrument]}'") unless options[:instrument].blank?
         query = query.where("jam_tracks.sales_region = '#{options[:availability]}'") unless options[:availability].blank?

web/app/controllers/api_jam_tracks_controller.rb

@@ -7,7 +7,7 @@ class ApiJamTracksController < ApiController
   respond_to :json
 
   def index    
-    data = JamTrack.index(params)
+    data = JamTrack.index(params, current_user.admin)
     @jam_tracks, @next = data[0], data[1]
     
     render "api_jam_tracks/index", :layout => nil

web/spec/controllers/api_jam_tracks_controller_spec.rb

@@ -14,23 +14,48 @@ describe ApiJamTracksController do
   end
 
   before(:each) do
+    JamTrack.destroy_all
     @user = FactoryGirl.create(:user)
     @jam_track = FactoryGirl.create(:jam_track)
+    @jam_track_unavailable = FactoryGirl.create(:jam_track, :available=>false)      
     controller.current_user = @user
   end
 
+  describe "admin" do
+    before(:each) do
+      @admin = FactoryGirl.create(:admin)    
+      controller.current_user = @admin
+    end
+
+    it "can see unavailable" do
+      get :index
+      response.should be_success
+      json = JSON.parse(response.body)
+      json["next"].should be_nil
+      json["jamtracks"].length.should == 2
+
+      # Create another unavailable track and see:
+      jam_track2 = FactoryGirl.create(:jam_track, :available=>false)
+      get :index
+      response.should be_success
+      json = JSON.parse(response.body)
+      json["next"].should be_nil
+      json["jamtracks"].length.should == 3
+    end
+  end # describe "admin"
+
   describe "download functionality" do
     it "lists available tracks" do
       get :index
       response.should be_success
-      json = JSON.parse(response.body)#, :symbolize_names => true)
+      json = JSON.parse(response.body)
       json["next"].should be_nil
       json["jamtracks"].length.should == 1
 
       jam_track2 = FactoryGirl.create(:jam_track)
       get :index
       response.should be_success
-      json = JSON.parse(response.body)#, :symbolize_names => true)
+      json = JSON.parse(response.body)
       json["next"].should be_nil
       json["jamtracks"].length.should == 2
     end

web/spec/factories.rb

@@ -713,6 +713,7 @@ FactoryGirl.define do
     ignore do
       make_track true
     end
+    available true
 
     genre             JamRuby::Genre.first
     association       :licensor, factory: :jam_track_licensor