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Is repository pattern needed?
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.
Why do we need unit of work pattern?
The unit of work class serves one purpose: to make sure that when you use multiple repositories, they share a single database context. That way, when a unit of work is complete you can call the SaveChanges method on that instance of the context and be assured that all related changes will be coordinated.
What is ORM Repository?
Repositories deal with Domain/Business objects (from the app point of view), an ORM handles db objects. A business objects IS NOT a db object, first has behaviour, the second is a glorified DTO, it only holds data.
How are unit of work and repository patterns useful?
This allows you to unit test the logic defined within your controller without effectively writing to a data store. Before starting with the Unit of Work, just use take a look at the Repository pattern. This basically abstracts the data access for a given entity.
Which is an example of a unit of work pattern?
Additionally to the generic repository, one or more specific repositories, which inherit from the generic repository, are implemented. These specialized repositories have methods which are needed by the application. For example, if the application is working with customers the CustomerRepository might have a method GetCustomersWithHighestRevenue.
How is a repository pattern implemented in C #?
A Repository Pattern can be implemented in Following ways: One repository per entity (non-generic) : This type of implementation involves the use of one repository class for each entity. For example, if you have two entities Order and Customer, each entity will have its own repository.
How to use Entity Framework as a repository?
Entity Framework has a DbSet class which has Add and Remove method and therefore looks like a repository. the DbContext class has the method SaveChanges and so looks like the unit of work. Therefore I thought that it is possible to use entity framework and have all the Advantages of the Repository and Unit of Work pattern out of the box.