app/models/user.rb

@@ -23,7 +23,7 @@ class User < ActiveRecord::Base

                   validates_inclusion_of :invitation_code, :on => :create, :in => INVITATION_CODES, :message => "is not valid"
              

                 
              

                   has_many :user_credentials, :dependent => :destroy
              

                -  accepts_nested_attributes_for :user_credentials, :reject_if => lambda { |attrs| attrs[:name].blank? },
              

                +  accepts_nested_attributes_for :user_credentials,
              

                                                 :allow_destroy => true
              

                   attr_accessible :user_credentials_attributes
              

                   has_many :events, :order => "events.created_at desc", :dependent => :delete_all, :inverse_of => :user
              

app/models/user_credential.rb

@@ -1,4 +1,6 @@

                 class UserCredential < ActiveRecord::Base
              

                   attr_accessible :credential_name, :credential_value, :user_id
              

                   belongs_to :user
              

                +  validates_presence_of :credential_name
              

                +  validates_uniqueness_of :credential_name, :scope => :user_id
              

                 end
              

spec/models/user_credential_spec.rb

@@ -1,5 +1,15 @@

                +require 'pry'
              

                 require 'spec_helper'
              

                 
              

                 describe UserCredential do
              

                -  pending "add some examples to (or delete) #{__FILE__}"
              

                +  describe "validation" do
              

                +    it {should validate_uniqueness_of(:credential_name).scoped_to(:user_id)}
              

                +  end
              

                +  describe "mass assignment" do
              

                +    it {should allow_mass_assignment_of :credential_name}
              

                +
              

                +    it {should allow_mass_assignment_of :credential_value}
              

                +
              

                +    it {should allow_mass_assignment_of :user_id}
              

                +  end
              

                 end
              

spec/models/users_spec.rb

@@ -16,4 +16,12 @@ describe User do

                       end
              

                     end
              

                   end
              

                -end
              

                +
              

                +  describe "nested attributes" do
              

                +    it { should accept_nested_attributes_for(:user_credentials).allow_destroy(true) }
              

                +  end
              

                +
              

                +  describe "mass assignment" do
              

                +    it {should allow_mass_assignment_of :user_credentials_attributes}
              

                +  end
              

                +end