GRN2-253: Added the ability to share rooms across multiple users (#912)

* Added ability to share rooms with other users

* Fixed testcases

db/migrate/20191128212935_create_shared_accesses.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class CreateSharedAccesses < ActiveRecord::Migration[5.2]
+  def change
+    create_table :shared_accesses do |t|
+      t.belongs_to :room, foreign_key: true
+      t.references :user, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_10_23_172511) do
+ActiveRecord::Schema.define(version: 2019_11_28_212935) do
 
   create_table "features", force: :cascade do |t|
     t.integer "setting_id"
@@ -90,6 +90,15 @@ ActiveRecord::Schema.define(version: 2019_10_23_172511) do
     t.index ["provider"], name: "index_settings_on_provider"
   end
 
+  create_table "shared_accesses", force: :cascade do |t|
+    t.integer "room_id"
+    t.integer "user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["room_id"], name: "index_shared_accesses_on_room_id"
+    t.index ["user_id"], name: "index_shared_accesses_on_user_id"
+  end
+
   create_table "users", force: :cascade do |t|
     t.integer "room_id"
     t.string "provider"