ability.rb

  def comercial(user)
    can [:manage], Account, :officer_id => user.id
    can [:manage], Account, :co_officer_id => user.id
    can :read, [Balance, HistoricBalance], :account => { :officer_id => user.id }
    can :read, [Balance, HistoricBalance], :account => { :co_officer_id => user.id }
    can [:manage], Person, :accounts => { :officer_id => user.id }
    can [:manage], Person, :accounts => { :co_officer_id => user.id }
    can [:read], Documentation do |documentation|
      can?(:read, documentation.account)
    end
    can [:read, :activity], [Fund, Manager]
  end