Database Reference
In-Depth Information
Figure 3.4. Introducing movies to the model
There's one problem here: because both users and movies are represented as boxes with a
name property, you don't have any way to differentiate between them. The easiest way to
makeadifferencebetween user boxesand movie boxesistointroducea type property,
with a different value for different types of objects. Figure 3.5 illustrates the model with
relevant types.
 
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