class Client
  require 'data_mapper'

  include DataMapper::Resource

  property :id, Serial
  property :name, String
  property :type, String

  validates_with_method :name, :method => :valid_name?
  validates_with_method :type, :method => :valid_type?

  private

  def valid_name?
    !@name.nil? && !@name.empty?
  end

  def valid_type?
    !@type.nil? && !@type.empty?
  end
end

class Employee
  include DataMapper::Resource
  include LumberYardConstants

  property :id, Serial
  property :first_name, String
  property :last_name, String
  property :username, String
  property :employee_type, String

  validates_with_method :first_name, :method => :valid_name_attributes?
  validates_with_method :last_name, :method => :valid_name_attributes?
  validates_with_method :username, :method => :valid_username?
  validates_with_method :employee_type, :method => :valid_employee_type?

  private

  def valid_employee_type?
    EMPLOYEE_TYPES.include?(@employee_type)
  end

  def valid_employee_fields?
    valid_name_attributes? && valid_username?
  end

  def valid_name_attributes?
    !@last_name.nil? && !@last_name.empty?
     !@first_name.nil? && !@first_name.empty?
  end

  def valid_username?
    !@username.nil? && !@username.empty?
  end
end