FogBugz #62: move address to a separate model/table.

app/models/address.rb

@@ -0,0 +1,3 @@
+class Address < ActiveRecord::Base
+  has_many :contacts
+end

app/models/contact.rb

@@ -1,6 +1,7 @@
 class Contact < ActiveRecord::Base
   has_many :emails, :dependent => :destroy
   has_many :phones, :dependent => :destroy
+  has_one :address
 
   accepts_nested_attributes_for :emails, :reject_if => lambda { |a| a[:address].blank? }, :allow_destroy => true
   accepts_nested_attributes_for :phones, :reject_if => lambda { |a| a[:nr].blank? }, :allow_destroy => true

db/migrate/20110713200056_create_addresses.rb

@@ -0,0 +1,49 @@
+class CreateAddresses < ActiveRecord::Migration
+  def self.up
+    create_table :addresses do |t|
+      t.string :street
+      t.string :housenr
+      t.string :zipcode
+      t.string :place
+      t.string :country
+
+      t.timestamps
+    end
+
+    # There is no such thing as relevant production data, yet.
+    # Thus, no need to care about migrating existing data.
+    remove_column :contacts, :street
+    remove_column :contacts, :housenr
+    remove_column :contacts, :plz
+    remove_column :contacts, :place
+    remove_column :contacts, :country
+
+    # Add FK reference
+    change_table :contacts do |t|
+      t.references :address
+    end
+    # Add the foreign key
+    execute <<-SQL
+	ALTER TABLE contacts
+	  ADD CONSTRAINT fk_contacts_addresses
+	  FOREIGN KEY (address_id)
+	  REFERENCES addresses(id)
+    SQL
+
+    # Force ActiveRecord to flush the cache and re-read the column information.
+    Contact.reset_column_information
+  end
+
+  def self.down
+    execute "ALTER TABLE contacts DROP FOREIGN KEY fk_contacts_addresses"
+    remove_column :contacts, :address_id
+
+    add_column :contacts, :country, :string
+    add_column :contacts, :place, :string
+    add_column :contacts, :plz, :string
+    add_column :contacts, :housenr, :string
+    add_column :contacts, :street, :string
+
+    drop_table :addresses
+  end
+end

db/schema.rb

@@ -1,68 +1,76 @@
-# 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 to check this file into your version control system.
-
-ActiveRecord::Schema.define(:version => 20110607192020) do
-
-  create_table "contacts", :force => true do |t|
-    t.string   "firstname"
-    t.string   "lastname"
-    t.string   "street"
-    t.string   "housenr"
-    t.string   "plz"
-    t.string   "place"
-    t.string   "country"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.integer  "birth_day"
-    t.integer  "birth_month"
-    t.integer  "birth_year"
-    t.integer  "user_id"
-  end
-
-  create_table "emails", :force => true do |t|
-    t.string   "desc"
-    t.string   "address"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.integer  "contact_id"
-  end
-
-  add_index "emails", ["contact_id"], :name => "fk_emails_contacts"
-
-  create_table "phones", :force => true do |t|
-    t.string   "desc"
-    t.string   "nr"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.integer  "contact_id"
-  end
-
-  add_index "phones", ["contact_id"], :name => "fk_phones_contacts"
-
-  create_table "users", :force => true do |t|
-    t.string   "email",                               :default => "", :null => false
-    t.string   "encrypted_password",   :limit => 128, :default => "", :null => false
-    t.string   "reset_password_token"
-    t.datetime "remember_created_at"
-    t.integer  "sign_in_count",                       :default => 0
-    t.datetime "current_sign_in_at"
-    t.datetime "last_sign_in_at"
-    t.string   "current_sign_in_ip"
-    t.string   "last_sign_in_ip"
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
-  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
-
-end
+# 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 to check this file into your version control system.
+
+ActiveRecord::Schema.define(:version => 20110713200056) do
+
+  create_table "addresses", :force => true do |t|
+    t.string   "street"
+    t.string   "housenr"
+    t.string   "zipcode"
+    t.string   "place"
+    t.string   "country"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  create_table "contacts", :force => true do |t|
+    t.string   "firstname"
+    t.string   "lastname"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "birth_day"
+    t.integer  "birth_month"
+    t.integer  "birth_year"
+    t.integer  "user_id"
+    t.integer  "address_id"
+  end
+
+  add_index "contacts", ["address_id"], :name => "fk_contacts_addresses"
+
+  create_table "emails", :force => true do |t|
+    t.string   "desc"
+    t.string   "address"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "contact_id"
+  end
+
+  add_index "emails", ["contact_id"], :name => "fk_emails_contacts"
+
+  create_table "phones", :force => true do |t|
+    t.string   "desc"
+    t.string   "nr"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.integer  "contact_id"
+  end
+
+  add_index "phones", ["contact_id"], :name => "fk_phones_contacts"
+
+  create_table "users", :force => true do |t|
+    t.string   "email",                               :default => "", :null => false
+    t.string   "encrypted_password",   :limit => 128, :default => "", :null => false
+    t.string   "reset_password_token"
+    t.datetime "remember_created_at"
+    t.integer  "sign_in_count",                       :default => 0
+    t.datetime "current_sign_in_at"
+    t.datetime "last_sign_in_at"
+    t.string   "current_sign_in_ip"
+    t.string   "last_sign_in_ip"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
+  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
+
+end

test/fixtures/addresses.yml

@@ -0,0 +1,15 @@
+# Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
+
+one:
+  street: MyString
+  housenr: MyString
+  zipcode: MyString
+  place: MyString
+  country: MyString
+
+two:
+  street: MyString
+  housenr: MyString
+  zipcode: MyString
+  place: MyString
+  country: MyString

test/unit/address_test.rb

@@ -0,0 +1,8 @@
+require 'test_helper'
+
+class AddressTest < ActiveSupport::TestCase
+  # Replace this with your real tests.
+  test "the truth" do
+    assert true
+  end
+end