Add proper foreign key relationships to all foreign keys

(except rsvps.user_id, because it's polymorphic)

db/migrate/20150327030226_add_foreign_keys.rb

@@ -0,0 +1,24 @@
+class AddForeignKeys < ActiveRecord::Migration
+  def change
+    add_foreign_key :authentications, :users
+    add_foreign_key :chapter_leaderships, :users
+    add_foreign_key :chapter_leaderships, :chapters
+    add_foreign_key :chapters_users, :chapters
+    add_foreign_key :chapters_users, :users
+    add_foreign_key :dietary_restrictions, :rsvps
+    add_foreign_key :event_email_recipients, :event_emails
+    add_foreign_key :event_email_recipients, :rsvps, column: :recipient_rsvp_id
+    add_foreign_key :event_emails, :events
+    add_foreign_key :event_emails, :users, column: :sender_id
+    add_foreign_key :event_sessions, :events
+    add_foreign_key :events, :locations
+    add_foreign_key :locations, :chapters
+    add_foreign_key :profiles, :users
+    add_foreign_key :rsvp_sessions, :rsvps
+    add_foreign_key :rsvp_sessions, :event_sessions
+    add_foreign_key :rsvps, :events
+    add_foreign_key :rsvps, :sections
+    add_foreign_key :sections, :events
+    add_foreign_key :surveys, :rsvps
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20150209050400) do
+ActiveRecord::Schema.define(version: 20150327030226) do
 
   create_table "authentications", force: :cascade do |t|
     t.integer  "user_id"
@@ -254,4 +254,25 @@
   add_index "users", ["email"], name: "index_users_on_email", unique: true
   add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
 
+  add_foreign_key "authentications", "users"
+  add_foreign_key "chapter_leaderships", "chapters"
+  add_foreign_key "chapter_leaderships", "users"
+  add_foreign_key "chapters_users", "chapters"
+  add_foreign_key "chapters_users", "users"
+  add_foreign_key "dietary_restrictions", "rsvps"
+  add_foreign_key "event_email_recipients", "event_emails"
+  add_foreign_key "event_email_recipients", "rsvps", column: "recipient_rsvp_id"
+  add_foreign_key "event_emails", "events"
+  add_foreign_key "event_emails", "users", column: "sender_id"
+  add_foreign_key "event_sessions", "events"
+  add_foreign_key "events", "locations"
+  add_foreign_key "external_events", "chapters"
+  add_foreign_key "locations", "chapters"
+  add_foreign_key "profiles", "users"
+  add_foreign_key "rsvp_sessions", "event_sessions"
+  add_foreign_key "rsvp_sessions", "rsvps"
+  add_foreign_key "rsvps", "events"
+  add_foreign_key "rsvps", "sections"
+  add_foreign_key "sections", "events"
+  add_foreign_key "surveys", "rsvps"
 end