Question

基本上我有实体：

public abstract class SocialNetworkAccount
    {
        public virtual string AccessToken { get; set; }
        public virtual string ProviderUserId { get; set; }
        public virtual string UserName { get; set; }
    }

和子类：

public class FacebookAccount : SocialNetworkAccount
    {
        public virtual string Name { get; set; }
        public virtual string Link { get; set; }
        public virtual GenderEnum Gender { get; set; }
    }
public class LinkedInAccount : SocialNetworkAccount
{
    public virtual string LastName { get; set; }
    public virtual string FirstName { get; set; }
}

我需要将DotNetOpenAuth.AspNet.AuthenticationResult映射到我的实体。

AuthenticationResult有字符串属性Provider

AuthenticationResult result = OAuthWebSecurity.VerifyAuthentication("...");
SocialNetworkAccount account = AutoMapper.Mapper.Map<SocialNetworkAccount>(result);

但我需要FacebookAccount或LinkedInAccount依赖于result.Provider的实例。任何帮助

Answer 1

您应手动处理提供者值。我建议您创建AuthenticationResult到您需要的每种社交网络帐户类型的映射。然后在扩展方法中调用适当的映射：

public static SocialNetworkAccount ToSocialNetworkAccount(
   this AuthenticationResult result)
{
    switch(result.Provider)
    {
        case "facebook": return Mapper.Map<FacebookAccount>(result);
        case "linkedin": return Mapper.Map<LinkedInAccount>(result);
        // ...
        default:
           throw new ArgumentException("Unknown provider: " + result.Provider);
    }
}

用法：

AuthenticationResult result = OAuthWebSecurity.VerifyAuthentication("...");
SocialNetworkAccount account = result.ToSocialNetworkAccount();

AutoMapper和继承：通过字符串属性解析子类型

1 个答案: