Adding models

Models define the data structures to be used by our business applications. This recipe shows how to add a basic model to a module.

We will use a simple book library example to explain this; we want a model to represent books. Each book has a name and a list of authors.

Getting ready

We should have a module to work with. If we follow the first recipe in this chapter, we will have an empty my_module. We will use that for our explanation.

How to do it...

To add a new Model, we add a Python file describing it and then upgrade the addon module (or install it,...