The Ins and Outs of Model Inheritance
summary
Covers concrete claims and tradeoffs: Django supports abstract, multiple table inheritance causes up to n queries per record and proxy models with custom managers, plus alternatives like generic foreign keys and Postgres JSONField. Recommends composition over inheritance, shows a shopping cart and product examples, links to Django typed models and downcasting packages, and warns that JSON field stores unstructured data but is hard to query while proxy models use one table and change behavior via managers.
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chapters (12)
- 0:00Introduction
- 1:16Composition vs Inheritance
- 2:52Composition in Django
- 3:38Abstract Models
- 4:42EOD Diagram
- 5:11Use Cases
- 7:00MultiTable Inheritance
- 14:08Down Casting
- 16:21Generic Foreign Keys
- 19:39Unstructured Data
- 22:15Explicit
- 23:25Outro
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