Entity Framework Core in Action, Second Edition

4 Using EF Core in business logic

This chapter covers

• Understanding business logic and its use of EF Core
• Looking at three types of business logic, from the easy to the complex
• Reviewing each type of business logic, with pros and cons
• Adding a step that validates the data before it’s written to the database
• Using transactions to daisy-chain code sequences

Real-world applications are built to supply a set of services, ranging from holding a simple list of things on your computer to managing a nuclear reactor. Every real-world problem has a set of rules, often referred to as business rules, or by the more generic name domain rules. (This book uses business rules.)

The code you write to implement a business rule is known as business logic or ...