Challenge: Add Enumerations

Test your understanding of enumerations by working through this challenge.

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Problem statement

In addition to correcting issues that arise in the validation application, you’ll also have to do the following:

  1. Define enumeration data types with the help of the Enumeration meta-class. Also, define any enumeration attributes together with a static check function and implicit get and set methods in the model code.

  2. Add suitable choice widgets for the enumeration attributes in the “Create” and “Update” use cases in the view code.

The application deals with just one object type, Movie, and with the two enumerations depicted in the following class diagram:

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