Remove email from User model and API

It was never actually used for anything except to enforce uniqueness,
which should be done by the LMS.

Rakefile

@@ -34,7 +34,7 @@ task :environment do
 end
 
 def create_test_user(id)
-  User.create!(external_id: id, username: "user#{id}", email: "user#{id}@test.com")
+  User.create!(external_id: id, username: "user#{id}")
 end
 
 Dir.glob('lib/tasks/*.rake').each { |r| import r }

api/users.rb

@@ -3,7 +3,6 @@ require 'new_relic/agent/method_tracer'
 post "#{APIPREFIX}/users" do
   user = User.new(external_id: params["id"])
   user.username = params["username"]
-  user.email = params["email"]
   user.save
   if user.errors.any?
     error 400, user.errors.full_messages.to_json
@@ -67,7 +66,7 @@ end
 
 put "#{APIPREFIX}/users/:user_id" do |user_id|
   user = User.find_or_create_by(external_id: user_id)
-  user.update_attributes(params.slice(*%w[username email default_sort_key]))
+  user.update_attributes(params.slice(*%w[username default_sort_key]))
   if user.errors.any?
     error 400, user.errors.full_messages.to_json
   else

edx_specs/helpers.rb

 def log_in
   visit "/"
   click_link "Log In"
-  fill_in "email", with: "student@student.com"
   fill_in "password", with: "student"
   click_button "Access My Courses"
   wait_until { page.find('.dashboard') }

lib/tasks/benchmark.rake

@@ -21,7 +21,7 @@ namespace :benchmark do
 
       x.report "create users" do
         (1..USERS).each do |user_id|
-          data = { id: user_id, username: "user#{user_id}", email: "user#{user_id}@test.com" }
+          data = { id: user_id, username: "user#{user_id}" }
           RestClient.post "#{PREFIX}/users", data
         end
       end

models/user.rb

@@ -7,7 +7,6 @@ class User
   field :_id, type: String, default: -> { external_id }
   field :external_id, type: String
   field :username, type: String
-  field :email, type: String
   field :default_sort_key, type: String, default: "date"
 
   embeds_many :read_states
@@ -18,10 +17,8 @@ class User
 
   validates_presence_of :external_id
   validates_presence_of :username
-  validates_presence_of :email
   validates_uniqueness_of :external_id
   validates_uniqueness_of :username
-  validates_uniqueness_of :email
 
   index( {external_id: 1}, {unique: true, background: true} )
 

scripts/db/migrate-006-remove-email.js

+db.users.dropIndex({email: 1})

scripts/db/revert-migrate-006-remove-email.js

+db.users.ensureIndex({email: 1}, {background: true})

spec/api/notifications_spec.rb

@@ -11,7 +11,7 @@ describe "app" do
     describe "POST /api/v1/notifications" do
       it "returns notifications by class and user" do
         start_time = Time.now
-        user = User.create(:email => "test@example.com",:external_id => 1,:username => "example")
+        user = User.create(:external_id => 1,:username => "example")
         commentable = Commentable.new("question_1")
         random_string = (0...8).map{ ('a'..'z').to_a[rand(26)] }.join
         thread = CommentThread.new(title: "Test title", body: "elephant otter", course_id: "1", commentable_id: commentable.id, comments_text_dummy: random_string)
@@ -42,7 +42,7 @@ describe "app" do
 
         # first make a dummy thread and comment and a subscription
         commentable = Commentable.new("question_1")
-        user = User.create(:email => "test@example.com",:external_id => 1,:username => "example")
+        user = User.create(:external_id => 1,:username => "example")
         random_string = (0...8).map{ ('a'..'z').to_a[rand(26)] }.join
 
         thread = CommentThread.new(title: "Test title", body: "elephant otter", course_id: "1", commentable_id: commentable.id, comments_text_dummy: random_string)
@@ -85,7 +85,7 @@ describe "app" do
         start_time = Date.today - 100.days
        
 
-        user = User.create(:email => "test@example.com",:external_id => 1,:username => "example")
+        user = User.create(:external_id => 1,:username => "example")
 
         sleep 1
 

spec/api/user_spec.rb

@@ -11,18 +11,15 @@ describe "app" do
     end
     describe "POST /api/v1/users" do
       it "creates a user" do
-        post "/api/v1/users", id: "100", username: "user100", email: "user100@test.com"
+        post "/api/v1/users", id: "100", username: "user100"
         last_response.should be_ok
         user = User.find_by(external_id: "100")
         user.username.should == "user100"
-        user.email.should == "user100@test.com"
       end
-      it "returns error when id / username / email already exists" do
-        post "/api/v1/users", id: "1", username: "user100", email: "user100@test.com"
+      it "returns error when id / username already exists" do
+        post "/api/v1/users", id: "1", username: "user100"
         last_response.status.should == 400
-        post "/api/v1/users", id: "100", username: "user1", email: "user100@test.com"
-        last_response.status.should == 400
-        post "/api/v1/users", id: "100", username: "user100", email: "user1@test.com"
+        post "/api/v1/users", id: "100", username: "user1"
         last_response.status.should == 400
       end
     end

spec/models/at_user_observer_spec.rb

@@ -23,8 +23,8 @@ require 'spec_helper'
 #what is the 'at' symbol doing there? @dementrock
 #"""
 #    User.delete_all
-#    User.create!(external_id: "1", username: "tom", email: "tom@test.com")
-#    User.create!(external_id: "2", username: "pi314", email: "pi314@test.com")
+#    User.create!(external_id: "1", username: "tom")
+#    User.create!(external_id: "2", username: "pi314")
 #  end
 #
 #  describe "#get_marked_text(text)" do

spec/spec_helper.rb

@@ -52,7 +52,7 @@ def parse(text)
 end
 
 def create_test_user(id)
-  User.create!(external_id: id.to_s, username: "user#{id}", email: "user#{id}@test.com")
+  User.create!(external_id: id.to_s, username: "user#{id}")
 end
 
 def init_without_subscriptions