each_error

Yields each attribute and associated error per error added.

  class Company < ActiveRecord::Base
    validates_presence_of :name, :address, :email
    validates_length_of :name, :in => 5..30
  end

  company = Company.create(:address => '123 First St.')
  company.errors.each_error{|attr,err| puts "#{attr} - #{err.type}" }
  # => name - :too_short
  #    name - :blank
  #    address - :blank