class ActiveRecord::RecordInvalid

end
puts invalid.record.errors
rescue ActiveRecord::RecordInvalid => invalid
complex_operation_that_calls_save!_internally
begin
record method to retrieve the record which did not validate.
Raised by save! and create! when the record is invalid. Use the

def initialize(record) 

def initialize(record)
  @record = record
  errors = @record.errors.full_messages.join(I18n.t('support.array.words_connector', :default => ', '))
  super(I18n.t('activerecord.errors.messages.record_invalid', :errors => errors))
end