.net - Whats Automapper For
Jan 19, 2010What's Automapper for? How will it help me with my domain and controller layer (asp.net mvc)
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Jan 26, 2010I work on our intranet, which is continuously being updated with new features or fixed bugs. Bugs and features are added to JIRA and then assigned to myself so that I can take care of those. Now I would like to add a new feature to the intranet, which shows the following information:
Current SVN version.
Current list of bug/fixes changes
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I am using ASP.NET.
I hope I explained everything.
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First, I have the following model:
Csharp Code:
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Notes: RenderPartials is a custom extension method and that part works, as do the actual views. The correct data is displayed. Just not in the expected order. In fact, it mirrors the database.
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[Pluggable("Repository")]
public class EntityDataRepository : IRepository
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Feb 16, 2011Is it possible with automapper in C# to map the properties of an object to an array/dictionary? I have tried the following:
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Problem 1:
Considering that every entity needs its own repository, and thus has to setup its own connection to a datasource (lets assume a database using EF), wouldnt that give alot of overhead if i need data from 5 different entities on a single page?
Problem 2:
What im seeing aswell in all the examples which i found online is that most people (even people like shanselman) implement the repository pattern using the entity classes which are generated by either LINQ or EF, doesn't this defeat the purpose of repository pattern with regards to loose coupling? On the other hand, what is the alternative, using POCO classes in combination with for example AutoMapper? (this scares me a little) Im hoping that a few people can shed some light on this, because im a bit confused at the moment if the repository pattern is the right choice for a website.
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Feb 26, 2011I'm completely new to AutoMapper, and I have a View that looks like this:
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{
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This is pretty much the same error I got when trying to use the entity object directly as model, rather than having AutoMapper create a ViewModel. So what am I doing wrong? This is driving me crazy...
UPDATE 3:Well, neverending story... I found some info on using UseDestinationValue on the CreateMap method in AutoMapper. So I tried that, and well, that actually got me a bit further. But...now I get a new exception on SaveChanges() (in the EF model). The exception now is: "The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable." This appears to be an exception that also occurs when trying to delete child objects in a one-to-many relationship if you don't have cascade delete set, but that's not what I'm trying to do here...
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x => x.Programs, opts => opts.UseDestinationValue());
Mapper.CreateMap<Consultant, ConsultantViewModel>();
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Nov 9, 2010I am using AUtomapper which I am very impressed with however, I have a complex object with many nested collections. I'm using Telerik OpenAccess and it returns the 1400 records fast but when I pass it to Automapper and it slows to a ridiculous crawl. Here is my code for reference:
List<DAL.Event> query = httpContext.Events.Where(e => e.Inactive != true && e.Event_Locations != null).ToList();
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Mapper.CreateMap<DAL.Event_Association, EventAssociationDTO>(); [code]....
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