class Contact < ActiveRecord::Base
  validates_presence_of :user_id

  belongs_to :user
  has_many :properties, :dependent => :destroy do
    # Defined for Contact#properties.
    # Use value_for_[abbreviation] to find the value of a property by it's abbreviation.
    # ==== Parameters
    # *args:: String that matches a Property.abbreviation
    # ==== Examples
    #   contact.properties.value_for_email
    #     # => would return the value for the property with an abbreviation of email
    def method_missing(sym, *args)
      return super unless sym.to_s =~ /value_for_(\w*)/
      (property = self.find_by_abbreviation($1)) ? property.value : nil
    end
  end
end