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Asked: 2026-06-02T16:55:27+00:00

In my asp.net mvc 3 application, I’m using the repository pattern. I have 3

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In my asp.net mvc 3 application, I’m using the repository pattern.
I have 3 entities, Company, Country, City. Each of them has their own repository. Company entity has FoundedCountry and FoundedCity foreign keys.
Now in a view, I want to show the company details. In this view I want to view Company details as well as, FoundedCountry name and FoundedCity name. In my opinion I have to handle this with a kind of JOIN query. But I’m stuck at how to achieve this in repository pattern. How can I handle this JOIN in repository pattern?

Thank you.

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1 Answer

  1. Editorial Team

    The repository should have a task-based interface. This means that ORM’s, joins etc are inside the repository. The app just sees an interface whtch returns an object that it can use.

    This means you don’t create a repository around a table (it pretty much defeats the purpose). In your scenario I suggest you have (at least) 2 repositories: one will handle everything related to updating the model and the other will serve only reads (queries).

    This means the query repository will return only the data you want (it basically returns view model bits). Of course, the actual tables and joins are an implementation detail of the repository.

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