codeforamerica/michigan-benefits

class AddVehicleForm < Form
  set_attributes_for :vehicle,
                     :vehicle_type, :year_make_model, member_ids: []

  validate :member_ids_valid
  validates_presence_of :vehicle_type, message: "Please choose the type of vehicle."

  def valid_members=(members)
    @valid_members = members
  end

  def member_ids_valid
    if member_ids.present?
      valid_member_ids = @valid_members.map do |member|
        member.id.to_s
      end
      return true if (member_ids - valid_member_ids).empty?
      errors.add(:member_ids, "Can only update members from this application")
    else
      errors.add(:member_ids, "Please select at least one person.")
    end
    false
  end
end