CODEWITHSUNDEEP
c#entity-frameworkapiderived-class
Michael Beuving
Michael Beuving

Reputation: 119

Best way to add base class values to derived class?

I have a reference file (dll) containing a class, which i use as my base class:

public class Group
{
    public Group();

    public int Id { get; set; }
    public int League_Id { get; set; }
    public string Name { get; set; }
    public string Nationality { get; set; }
}

(Please note that the Group class contains about 30 entities, i have only displayed some)

Since i use Entity Framework the ID needs to be unique. i get this data from a API call and noticed that the ID is not unique, i have added my own class.

public class modGroup : APICall.Group
{
    public modGroup()
    {
        modID = 0;
    }

    [Key]
    public int modID { get; set; }
}

This setup works, EF is creating the database.

What i'd like to do is get the data from the API (Which is structured as the Group class), create a new modGroup() and set all data from the API call, without referencing each individual object.

What i would like to do is transfer data without setting each individual entity.

List<APICall.Group> groupData= _ApiRequester.GetGroup();
using (var a = new databaseModel())
{
    foreach (APICall.Group x in groupData)
    {
        var modGroup = new Models.modGroup();
        modGroup.modID = 0;
        // fill modgroup with rest of variables without doing:
        // modGroup.League_iD = a.League_iD;
        // modGroup.Name = a.Name;
        // etc
    }
}

Upvotes: 1

Views: 103

Answers (1)

James Dev
James Dev

Reputation: 3009

I would use Automapper to map the two classes together in one call. This type of situation is what it was designed for. All you would need to do is create a mapping configuration and then map the two classes. It's a very simple but powerful tool. e.g. Something like this:

var config = new MapperConfiguration(cfg => cfg.CreateMap<APICall.Group, modGroup>()
.ForMember(dest => dest.modID, s=>s.MapFrom(s=>s.Id));
// etc create more mappings here
);

var mapper = config.CreateMapper();
List<modGroup> modGroupList = mapper.Map<List<modGroup>>(groupData);

Upvotes: 2

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