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Invoices plugin

Invoice price is calculated based on its items. For each object that should be added to invoice (invoice item source) should be created a separate model.

Business logic for invoice item creation and registration should be covered in a registrator in the module registrators.py.

Invoice items creation and termination should be triggered in handlers that reacts on items sources deletion or save. RegistrationManager should be used in handlers.


Last update: 2021-09-14