Extending the business logic defined in a Model
When defining a model that extends another model, it is often necessary to customize the behavior of some methods defined on the original model. This is a very easy task in Odoo, and one of the most powerful features of the underlying framework.
We will demonstrate this by extending a method that creates records to add a new field in the created records.
Getting ready
If you want to follow the recipe, make sure you have the my_module addon from Chapter 3, Creating Odoo Modules, with the loan wizard defined in the Writing a wizard to guide the user recipe from Chapter 6, Advanced Server Side Development Techniques.
Create a new addon module called library_loan_return_date that depends on my_module. In ...
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