我有下面这个映射配置文件:
如您所见,一些映射正在使用
在启动类中,我正常地初始化了 Automapper。
public class DomainProfile : Profile
{
private FootballPredictionsContext m_Context;
public DomainProfile(FootballPredictionsContext context)
{
m_Context = context;
}
public DomainProfile()
{
CreateMap<TipModel, Tip>()
.ForMember(tip => tip.BetType, m => m.MapFrom(x => m_Context.BetTypes.First(y => y.Name == x.BetType)))
.ForMember(tip => tip.BetCategory, m => m.MapFrom(x => m_Context.BetCategories.First(y => y.Name == x.BetCategory)))
.ForMember(tip => tip.Sport, m => m.MapFrom(x => m_Context.Sports.First(y => y.Name == x.Sport)))
.ForMember(tip => tip.Tipster, m => m.MapFrom(model => m_Context.Tipsters.First(y => y.Username == model.Tipster)));
}
}
如您所见,一些映射正在使用
DbContext
,因此我必须在 DomainProfile
中注入它。在启动类中,我正常地初始化了 Automapper。
public void ConfigureServices(IServiceCollection services)
{
services.AddScoped(typeof(IUnificator), typeof(Unificator));
services.AddDbContext<FootballPredictionsContext>(options => options.UseSqlServer(Configuration.GetConnectionString("Database")));
services.AddDbContext<UnificationContext>(options => options.UseSqlServer(Configuration.GetConnectionString("Database")));
services.AddSingleton(provider => new MapperConfiguration(cfg =>
{
cfg.AddProfile(new UserProfile(provider.GetService<IUserManager>()));
}).CreateMapper());
services.AddMvc();
}
我尝试了这个解决方案,但是我收到了'Cannot resolve scoped service 'FootballPredictions.DAL.FootballPredictionsContext' from root provider.'
的错误信息。