Automapper v4.0 在方法中使用非常简单,有人可以帮助为 v5.0 重写它(特别是 Mapper 代码):
public IEnumerable<NotificationDto> GetNewNotifications()
{
var userId = User.Identity.GetUserId();
var notifications = _context.UserNotifications
.Where(un => un.UserId == userId && !un.IsRead)
.Select(un => un.Notification)
.Include(n => n.Gig.Artist)
.ToList();
Mapper.CreateMap<ApplicationUser, UserDto>();
Mapper.CreateMap<Gig, GigDto>();
Mapper.CreateMap<Notification, NotificationDto>();
return notifications.Select(Mapper.Map<Notification, NotificationDto>);
}
更新: 似乎 EF Core 没有投影 AutoMapper 映射的内容:
return notifications.Select(Mapper.Map<Notification, NotificationDto>);
但是我确实使用以下代码在 Postman 中获得了结果:
return notifications.Select(n => new NotificationDto()
{
DateTime = n.DateTime,
Gig = new GigDto()
{
Artist = new UserDto()
{
Id = n.Gig.Artist.Id,
Name = n.Gig.Artist.Name
},
DateTime = n.Gig.DateTime,
Id = n.Gig.Id,
IsCancelled = n.Gig.IsCancelled,
Venue = n.Gig.Venue
},
OriginalVenue = n.OriginalVenue,
OriginalDateTime = n.OriginalDateTime,
Type = n.Type
});