Create initial document model

app/models/document.rb

@@ -0,0 +1,3 @@
+class Document < ApplicationRecord
+
+end

db/migrate/20161220134413_create_documents.rb

@@ -0,0 +1,15 @@
+class CreateDocuments < ActiveRecord::Migration[5.0]
+  def up
+    create_table :documents do |t|
+      t.string :content_id
+      t.string :locale
+    end
+
+    add_index :documents, [:content_id, :locale], :unique => true
+  end
+
+  def down
+    remove_index :documents, [:content_id, :locale]
+    drop_table :documents
+  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: 20161219143746) do
+ActiveRecord::Schema.define(version: 20161220134413) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -50,7 +50,6 @@
   end
 
   create_table "content_items", force: :cascade do |t|
-    t.string   "content_id"
     t.string   "title"
     t.datetime "public_updated_at"
     t.json     "details",              default: {}
@@ -70,12 +69,11 @@
     t.datetime "first_published_at"
     t.datetime "last_edited_at"
     t.string   "state"
-    t.string   "locale"
     t.integer  "user_facing_version"
     t.string   "base_path"
     t.string   "content_store"
-    t.index ["content_id", "state", "locale"], name: "index_content_items_on_content_id_and_state_and_locale", using: :btree
-    t.index ["content_id"], name: "index_content_items_on_content_id", using: :btree
+    t.string   "content_id"
+    t.string   "locale"
     t.index ["document_type"], name: "index_content_items_on_document_type", using: :btree
     t.index ["last_edited_at"], name: "index_content_items_on_last_edited_at", using: :btree
     t.index ["public_updated_at"], name: "index_content_items_on_public_updated_at", using: :btree
@@ -85,6 +83,12 @@
     t.index ["updated_at"], name: "index_content_items_on_updated_at", using: :btree
   end
 
+  create_table "documents", force: :cascade do |t|
+    t.string "content_id"
+    t.string "locale"
+    t.index ["content_id", "locale"], name: "index_documents_on_content_id_and_locale", unique: true, using: :btree
+  end
+
   create_table "events", force: :cascade do |t|
     t.string   "action",                  null: false
     t.json     "payload",    default: {}