@startuml Database

map Usage {
	key => **string**
	time => **string** //date-time//
}

map Discount {
	factor => **integer**
	layer => **integer**
	target => **string**
	threshold => **integer**
}

map Privilege {
	amount => **integer**
	privilegeID => **string**
}

map PromoCode {
	id => **string** //primary_key//
	activationCount => **integer**
	bonus => **bonus**
	codeword => **string**
	createdAt => **string** //date-time//
	delete => **boolean**
	description => **string**
	fastLinks => **[]string**
	dueTo => **integer**
	greetings => **string**
	offLimit => **boolean**
	outdated => **boolean**
}

map Bonus {
	discount => **discount**
	privilege => **privilege**
}

map Filter {
	active => **boolean**
	text => **string**
}

Bonus::discount -> Discount
Bonus::privilege -> Privilege

@enduml