Add Registrant API contact update action

Closes #849

app/models/action.rb

@@ -0,0 +1,17 @@
+class Action < ActiveRecord::Base
+  belongs_to :user
+  belongs_to :contact
+
+  validates :operation, inclusion: { in: proc { |action| action.class.valid_operations } }
+
+  class << self
+    def valid_operations
+      %w[update]
+    end
+  end
+
+  def notification_key
+    raise 'Action object is missing' unless contact
+    "contact_#{operation}".to_sym
+  end
+end

app/models/contact.rb

@@ -526,4 +526,20 @@ class Contact < ActiveRecord::Base
 
     domain_names
   end
+
+  def address=(address)
+    self.street = address.street
+    self.zip = address.zip
+    self.city = address.city
+    self.state = address.state
+    self.country_code = address.country_code
+  end
+
+  def address
+    Address.new(street, zip, city, state, country_code)
+  end
+
+  def managed_by?(registrant_user)
+    ident == registrant_user.ident
+  end
 end

app/models/contact/address.rb

@@ -0,0 +1,25 @@
+class Contact
+  class Address
+    attr_reader :street
+    attr_reader :zip
+    attr_reader :city
+    attr_reader :state
+    attr_reader :country_code
+
+    def initialize(street, zip, city, state, country_code)
+      @street = street
+      @zip = zip
+      @city = city
+      @state = state
+      @country_code = country_code
+    end
+
+    def ==(other)
+      (street == other.street) &&
+        (zip == other.zip) &&
+        (city == other.city) &&
+        (state == other.state) &&
+        (country_code == other.country_code)
+    end
+  end
+end

app/models/notification.rb

@@ -1,6 +1,8 @@
 class Notification < ActiveRecord::Base
   include Versions # version/notification_version.rb
+
   belongs_to :registrar
+  belongs_to :action
 
   scope :unread, -> { where(read: false) }
 
@@ -20,7 +22,7 @@ class Notification < ActiveRecord::Base
 
   # Needed for EPP log
   def name
-    "-"
+    ''
   end
 
   private

app/models/registrant_user.rb

@@ -56,6 +56,14 @@ class RegistrantUser < User
     username
   end
 
+  def first_name
+    username.split.first
+  end
+
+  def last_name
+    username.split.second
+  end
+
   class << self
     def find_or_create_by_idc_data(idc_data, issuer_organization)
       return false if idc_data.blank?

app/models/registrar.rb

@@ -157,6 +157,11 @@ class Registrar < ActiveRecord::Base
     end
   end
 
+  def notify(action)
+    text = I18n.t("notifications.texts.#{action.notification_key}", contact: action.contact.code)
+    notifications.create!(text: text)
+  end
+
   private
 
   def set_defaults

app/models/user.rb

@@ -1,6 +1,8 @@
 class User < ActiveRecord::Base
   include Versions # version/user_version.rb
 
+  has_many :actions, dependent: :restrict_with_exception
+
   attr_accessor :phone
 
   def id_role_username