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Why is a repository pattern important?

The Repository pattern makes it easier to test your application logic. The Repository pattern allows you to easily test your application with unit tests. Remember that unit tests only test your code, not infrastructure, so the repository abstractions make it easier to achieve that goal.

Is unit of work necessary?

Not necessarily. EF already provides the unit of work pattern for you. The only reason to still have a unit of work is if you: want to include non-EF-datasources in an atomic data operation.

Do you need repository pattern with EF core?

No, the repository/unit-of-work pattern (shortened to Rep/UoW) isn’t useful with EF Core. A better solution is to use EF Core directly, which allows you to use all of EF Core’s feature to produce high-performing database accesses.

What is work unit?

Maintains a list of objects affected by a business transaction and coordinates the writing out of changes and the resolution of concurrency problems. A Unit of Work keeps track of everything you do during a business transaction that can affect the database. …

What is a unit of work pattern?

Unit of Work is the concept related to the effective implementation of the repository pattern. non-generic repository pattern, generic repository pattern. Unit of Work is referred to as a single transaction that involves multiple operations of insert/update/delete and so on.

Why should I not use the repository pattern with Entity Framework?

The single best reason to not use the repository pattern with Entity Framework? Entity Framework already implements a repository pattern. DbContext is your UoW (Unit of Work) and each DbSet is the repository. Implementing another layer on top of this is not only redundant, but makes maintenance harder.

How does the Rep / UOW pattern work in EF Core?

The Rep/UoW pattern does this by providing a method to add/remove reviews to the Book Repository. Hiding complex T- SQL commands: Sometimes you need to bypass EF Core’s cleverness and use T-SQL. This type of access should be hidden from higher layers, yet easy to find to help with maintenance/refactoring.

Why are repository and unit of work patterns important?

Implementing these patterns can help insulate your application from changes in the data store and can facilitate automated unit testing or test-driven development (TDD). In this tutorial you’ll implement a repository class for each entity type.

Can You Wrap a transaction in a repository pattern?

Yes, we can wrap that whole thing inside a transaction to make it even more ugly! A pattern that goes hand in hand with the repository pattern is the unit of work. With the unit of work, we can re-write that ugly code like this: Now, either both objects are saved together or none are saved. The database will always be in a consistent state.