I have three projects that share the same DB, whats the best way to use EF across all?

我的梦境 提交于 2019-12-03 23:25:24

I think the cleanest thing to do is create a data access project (class library) that contains just your models and db context, and reference that from all of your other projects.

Some people will say that you should make one class library with just the models, and then have yet another that has the DbContext, and the have repository classes, and then.... I feel this is overkill for the majority of projects. Having the models and context in one place just makes it really easy to keep all the dependent projects consistently in sync when it comes to data access.

Here's a typical project structure for me:

Here, Squelch.Data contains all of my models and db contexts, Squelch.Core contains core business logic, and my two "applications" (Squelch.Portal ad CdrImport), and the various test cases, all reference these base class libraries.

I would create a separate data access project. It is good practice to separate your data layer out anyhow. Depending on the nature of the project and how you want to test it, you may want to take a look at something like the repository pattern (though there is debate about its value with EF).

http://msdn.microsoft.com/en-us/library/ff649690.aspx

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