update weak-entity example

2 files changed, 21 insertions, 9 deletions

diff --git a/assignments/1/weak-entity.png b/assignments/1/weak-entity.png
index 08ef278..14b4168 100644
--- a/assignments/1/weak-entity.png
+++ b/assignments/1/weak-entity.png
diff --git a/assignments/1/weak-entity.uml b/assignments/1/weak-entity.uml
index 99ae094..6ad1377 100644
--- a/assignments/1/weak-entity.uml
+++ b/assignments/1/weak-entity.uml
@@ -1,14 +1,26 @@
 @startuml
-entity "Customer" as customer {
-  *id: number
-  *name: varchar(255)
+!define Table(name,desc) class name as "desc" << (T,#FFAAAA) >>
+!define primary_key(x) <b>x</b>
+!define foreign_key(x) <b>x</b>
+!define unique(x) <color:green>x</color>
+!define not_null(x) <u>x</u>
+hide methods
+hide stereotypes
+
+' entities
+Table(customer, "Customer") {
+  primary_key(id) INTEGER
+  not_null(name) VARCHAR[255]
 }
-entity "Address" as address {
-  *id: number
-  *customer_id: number
-  *street: varchar(255)
-  *city: varchar(255)
-  *country: varchar(255)
+
+Table(address, "Address") {
+  primary_key(id) INTEGER
+  foreign_key(customer_id) INTEGER
+  not_null(street) VARCHAR[255]
+  not_null(city) VARCHAR[255]
+  not_null(country) VARCHAR[255]
 }
+
+' relationships
 customer --|{ address
 @enduml