Create device model and setup devise, activeadmin and rspec!

- with attributes: model, imei_number, unique_id and access_token
 - access_token is automatically generated on create

db/migrate/20151016121927_devise_create_admin_users.rb

@@ -0,0 +1,42 @@
+class DeviseCreateAdminUsers < ActiveRecord::Migration
+  def change
+    create_table(:admin_users) do |t|
+      ## Database authenticatable
+      t.string :email,              null: false, default: ""
+      t.string :encrypted_password, null: false, default: ""
+
+      ## Recoverable
+      t.string   :reset_password_token
+      t.datetime :reset_password_sent_at
+
+      ## Rememberable
+      t.datetime :remember_created_at
+
+      ## Trackable
+      t.integer  :sign_in_count, default: 0, null: false
+      t.datetime :current_sign_in_at
+      t.datetime :last_sign_in_at
+      t.inet     :current_sign_in_ip
+      t.inet     :last_sign_in_ip
+
+      ## Confirmable
+      # t.string   :confirmation_token
+      # t.datetime :confirmed_at
+      # t.datetime :confirmation_sent_at
+      # t.string   :unconfirmed_email # Only if using reconfirmable
+
+      ## Lockable
+      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is :failed_attempts
+      # t.string   :unlock_token # Only if unlock strategy is :email or :both
+      # t.datetime :locked_at
+
+
+      t.timestamps null: false
+    end
+
+    add_index :admin_users, :email,                unique: true
+    add_index :admin_users, :reset_password_token, unique: true
+    # add_index :admin_users, :confirmation_token,   unique: true
+    # add_index :admin_users, :unlock_token,         unique: true
+  end
+end

db/migrate/20151016121931_create_active_admin_comments.rb

@@ -0,0 +1,19 @@
+class CreateActiveAdminComments < ActiveRecord::Migration
+  def self.up
+    create_table :active_admin_comments do |t|
+      t.string :namespace
+      t.text   :body
+      t.string :resource_id,   null: false
+      t.string :resource_type, null: false
+      t.references :author, polymorphic: true
+      t.timestamps
+    end
+    add_index :active_admin_comments, [:namespace]
+    add_index :active_admin_comments, [:author_type, :author_id]
+    add_index :active_admin_comments, [:resource_type, :resource_id]
+  end
+
+  def self.down
+    drop_table :active_admin_comments
+  end
+end

db/migrate/20151016122334_create_devices.rb

@@ -0,0 +1,12 @@
+class CreateDevices < ActiveRecord::Migration
+  def change
+    create_table :devices do |t|
+      t.string :model
+      t.string :unique_id
+      t.string :imei_number
+      t.string :access_token
+
+      t.timestamps null: false
+    end
+  end
+end

db/schema.rb

@@ -0,0 +1,61 @@
+# encoding: UTF-8
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# Note that this schema.rb definition is the authoritative source for your
+# database schema. If you need to create the application database on another
+# system, you should be using db:schema:load, not running all the migrations
+# from scratch. The latter is a flawed and unsustainable approach (the more migrations
+# you'll amass, the slower it'll run and the greater likelihood for issues).
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema.define(version: 20151016122334) do
+
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "plpgsql"
+
+  create_table "active_admin_comments", force: :cascade do |t|
+    t.string   "namespace"
+    t.text     "body"
+    t.string   "resource_id",   null: false
+    t.string   "resource_type", null: false
+    t.integer  "author_id"
+    t.string   "author_type"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  add_index "active_admin_comments", ["author_type", "author_id"], name: "index_active_admin_comments_on_author_type_and_author_id", using: :btree
+  add_index "active_admin_comments", ["namespace"], name: "index_active_admin_comments_on_namespace", using: :btree
+  add_index "active_admin_comments", ["resource_type", "resource_id"], name: "index_active_admin_comments_on_resource_type_and_resource_id", using: :btree
+
+  create_table "admin_users", force: :cascade do |t|
+    t.string   "email",                  default: "", null: false
+    t.string   "encrypted_password",     default: "", null: false
+    t.string   "reset_password_token"
+    t.datetime "reset_password_sent_at"
+    t.datetime "remember_created_at"
+    t.integer  "sign_in_count",          default: 0,  null: false
+    t.datetime "current_sign_in_at"
+    t.datetime "last_sign_in_at"
+    t.inet     "current_sign_in_ip"
+    t.inet     "last_sign_in_ip"
+    t.datetime "created_at",                          null: false
+    t.datetime "updated_at",                          null: false
+  end
+
+  add_index "admin_users", ["email"], name: "index_admin_users_on_email", unique: true, using: :btree
+  add_index "admin_users", ["reset_password_token"], name: "index_admin_users_on_reset_password_token", unique: true, using: :btree
+
+  create_table "devices", force: :cascade do |t|
+    t.string   "model"
+    t.string   "unique_id"
+    t.string   "imei_number"
+    t.string   "access_token"
+    t.datetime "created_at",   null: false
+    t.datetime "updated_at",   null: false
+  end
+
+end

db/seeds.rb

@@ -5,3 +5,4 @@
 #
 #   cities = City.create([{ name: 'Chicago' }, { name: 'Copenhagen' }])
 #   Mayor.create(name: 'Emanuel', city: cities.first)
+AdminUser.create!(email: 'admin@example.com', password: 'password', password_confirmation: 'password')