how to implement the repository pattern in an asp.net mvc application dhananjay kumar developer...
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How to implement the Repository Pattern in an ASP.NET MVC Application
Dhananjay KumarDeveloper Evangelist – Infragistics Microsoft MVP http://debugmode.net
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Host : Dhananjay Kumar
Developer Evangelist – Infragistics
6 times Microsoft MVP @debug_mode
Blog : http://debugmode.net
Email : [email protected]
Agenda• What is Repository Pattern • Advantages of Repository Pattern• Step by Step implementing Repository
pattern • Creating Core Project • Creating Infrastructure Project • Creating Test Project • Creating MVC Project
Advantage of Repository Pattern
Business logic can be unit tested without data access logic
Database access code can be reused
Database access code is centrally managed so easy to implement any database access policies such that caching
Easy to implement domain logics
Domain entities or business entities are strongly typed with the annotations
Some of the difficulties Duplicate code
Difficulty implementing any data related logic or policies such that caching
Difficulty in unit testing the business logic without having the data access layer
Tightly coupled business logic and database access logic
Project Structure
Project Structure Project Responsibility Type
Core Project Domain entities and interface for database operations
Class library
Infrastructure Project Libraries to perform database operations. Such as Entity Framework library.
Class library
Test Project Unit Tests for Infrastructure projects
Unit Test
MVC Project MVC based web application using Infrastructure and Core projects libraries using Dependency Injection
MVC
Let us write Code step by step to implement Repository Pattern
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• Please reach out to us at [email protected] for any follow up questions you may have. We welcome the opportunity to assist you.