gistfile1.rb

  def merge(people)
    people.each do |id|
      person = Person.find(id)
      return false unless person.account.id == self.account.id

      self.transaction do 
        person.financial_transactions.each do |ft|
          ft.person = self
          errors[:base] << "Erro ao salvar financial transaction" unless ft.save!
        end
        person.financial_accounts.each do |fa|
          fa.person = self
          errors[:base] << "Erro ao salvar financial account" unless fa.save!
        end
        person.force_destroy = true
        error[:base] << "Erro ao remover cliente / fornecedor" unless person.destroy
        raise ActiveRecord::Rollback unless errors.empty?
      end
    end
  end