Repository pattern tutorial in C#
Can anyone recommend good tutorial on repository pattern usage, in C#?...
repository-pattern
Repository Pattern Implementation Experience
I am getting ready to start a new asp.net web project and I am going to LINQ-to-SQL. I have done a little bit of work getting my data layer setup using some info I found by Mike Hadlow that uses an Interface and generics to create a Repository for each table in the database. I thought this was an interesting approach at first. However...
Implementation example for Repository pattern with Linq to Sql and C#
I am looking for a Repository pattern implementation example/resource that follows domain driven design principles for my ASP.net MVC application. Does anyone have a good example or learning resource that can be shared? ...
Which object should I mock?
I am writing a repository. Fetching objects is done through a DAO. Creating and updating objects is done through a Request object, which is given to a RequestHandler object (a la Command pattern). I didn't write the DAO, Request, or RequestHandler, so I can't modify them. I'm trying to write a test for this repository. I have mocked out...
Entity classes decoupled from LINQ to SQL provider for implementing the Repository pattern. How?
I have looked over the Repository pattern and I recognized some ideas that I was using in the past which made me feel well. However now I would like to write an application that would use this pattern BUT I WOULD LIKE TO HAVE THE ENTITY CLASSES DECOUPLED from the repository provider. I would create several assemblies : an "Interfaces...
Constructing a Domain Object from multiple DTOs
Suppose you have the canonical Customer domain object. You have three different screens on which Customer is displayed: External Admin, Internal Admin, and Update Account. Suppose further that each screen displays only a subset of all of the data contained in the Customer object. The problem is: when the UI passes data back from each ...
DDD repositories as singletons?
Quick question: Would it be a good or a bad idea to implement my domain-driven design style repositories as singletons? Why? Or should I maybe use a dependency injector container to manage my repositories and decide if they are singletons or not? I'm still reading DDD Quickly, and would like to see some good repository examples. ...
Service Layers and Repositories
I've been using MVC frameworks for a short while now and I really like how the concerns are separated out. I've got into a bad habit of letting the controllers do quite a bit of work. So I'm really looking for some advice. When I first started using MVC I quite often had the controller doing manipulation on the models after database w...
Entity Framework, building query based on criteria
I was wondering if anyone had a better idea how to do this. atm returning IQueryable<Member> as ObjectQuery<Member> seems dirty to me. namespace Falcon.Business.Repositories { using System; using System.Data.Objects; using System.Linq; using Falcon.Business.Criteria; using Falcon.Business.Entities; using Falcon.B...
.net architecture: Creating a IRepository<T> generically
I am using a generic repository interface which allows me to add, find, update and delete objects of different types. I have then implemented two concrete repositories and can switch them around without changing the application. Everything is wonderfully disconnected. But I have hit a snag. The code inside my repository methods just feel...
How should I structure a simple ASP.NET MVC app?
I've been reading a few things about ASP.NET MVC, SOLID and so on, and I am trying to figure out a simple "recipe" for small-to-medium ASP.NET MVC apps that would put these concepts together; the issue that I am most concerned with is ending up with controllers that are too complex and being like code-behind files in webforms, with all t...
Repository Pattern and layering. Where do I apply security?
I am doing my best to design my web app with good separation between the layers. I am using the repository pattern and as such have a SQLObjectRepository which is called by my ObjectService which is called by my Web front end. In my object model, the user is associated with one or more regions which should filter the objects they shoul...
How do you mock your repositories?
I've use Moq to mock my repositories. However, someone recently said that they prefer to create hard-coded test implementations of their repository interfaces. What are the pros and cons of each approach? Edit: clarified meaning of repository with link to Fowler. ...
How many types should be implementing the Repository pattern?
I am trying to use the repository pattern in an instance of storing pictures. What I do is save the actual pics in a directory on disk but save data about the pics and what pics go with what object in a database. I was wondering if I should use 2 interfaces for the storage, like IStorePicRepo and IStorePicDataRepo or have 1 interface ...
MVC Repository Pattern: Creating Model Classes
Reviewing Conery's storefront, and I dont understand why he used Linqs auto-generated classes (ie Order class) and then he has another Order class defined that is not a partial class. WHen using repository pattern should one manually create the classes, and disregard Datacontext altogether? ...
Decorator Chaining of Repositories and Specialized Repositories with Dependancy Injection
Right now I'm trying to figure out a way to do things smarter, and in the course of doing so all i've managed to do is use a full bottle of excedrin in a single day. Assume i have an interface called IRepository like so. public interface IRepository<T> { T Get(int id); void Add(T value); void Update(T value); void Del...
MVC: Repositories and Services
I am confused as to the limitations of what gets defined in the Repositories and what to leave to the Services. Should the repository only create simple entities matching tables from the database or can it create complex custom object with combinations of those entities? in other words: Should Services be making various Linq to SQL que...
What is wrong with putting Using Blocks in Repository?
I have using blocks in each method of my repository. If I want to cross reference methods, it seems it would be against best practices to initialize another Datacontext What am i doing wrong? If I declare a Datacontext in the class instead of using blocks in methods will I not lose power to dispose ?? public IList<something> GetSomethi...
Does this Entity Repository Service example fit into Domain-Driven Design?
I would like to know if you find the following pattern meaningful in domain driven design. The domain layer consists of model and repository. The application layer consists of services that handles queries from the user interface, or from controllers in the Model-View-Controller pattern. Details of the structure: // Assembly Model: p...
Blog Architecture Design, using MVC and DDD
I'm designing a blog architecture on asp.net mvc. Lets say i only have 2 entities: post and comment. do i need a controller and a repository for each one? how goes the mechanism for displaying a post with it's comments? do the post controller looks in the posts repository for the post, then asks the comment controller to retrieve all the...