Domain-Driven Refactoring

on YouTube ↗01h 02m

" summary

A procedural handler that loads member and offer data, calls an external rules API, computes expirations and saves changes is refactored step‑by‑step into a cohesive domain model using ReSharper, EF Core and a SmartEnum library. The process extracts a OfferValueCalculator behind an interface, moves expiration logic into an ExpirationType smart enum implementing a strategy per value, replaces public lists with a backing field for EF Core, and applies double‑dispatch so the domain object becomes unit‑testable and persists via value conversion.

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" chapters (18)

1. 0:00Introduction
2. 1:50What is DomainDriven Design
3. 3:24Domain Model
4. 4:42The Problem
5. 5:21Test Urban Design
6. 5:44Refactoring
7. 6:24Books
8. 7:53Current State
9. 10:54Where is the behavior
10. 13:23Mediator
11. 15:17Code Walkthrough
12. 22:01Reverse Refactoring
13. 29:44OfferValue Calculator
14. 36:56Expiration Type
15. 40:31Assignment and Fixed Expiration Types
16. 45:55Abstract Methods
17. 50:03Assign Offer Method
18. 54:21Assign Offer Logic

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