@startuml

'!include base.plantuml
!include status.plantuml
!include user.plantuml

skinparam linetype polyline


class Contact {
  {field}  + code\tString(80)\t<<Unique>>
  {field}  + address\tString(255) | None
  {field}  + notes\tText | None
}

abstract ContactForeignKey {
    contact_id\tContact.id {field}
  + contact\t\tContact      {field}
}


'Base              <|--Contact
StatusForeignKey  <|-[#blue]- Contact
Versioned         <|-[#blue]- Contact
Contact *-- ContactForeignKey

@enduml