我具有使用.net core 2构建的API,并且我正在尝试实现更改日志功能。
我已经完成了基本的部分,但是我不确定这是否是执行此操作的最佳方法。
这是我的EntityBaseRepository
public class EntityBaseRepository<T> : IEntityBaseRepository<T> where T : class, IFullAuditedEntity, new()
{
private readonly ApplicationContext context;
public EntityBaseRepository(ApplicationContext context)
{
this.context = context;
}
public virtual IEnumerable<T> items => context.Set<T>().AsEnumerable().OrderByDescending(m => m.Id);
public virtual T this[int id] => context.Set<T>().FirstOrDefault(m => m.Id == id);
public virtual T GetSingle(int id) => context.Set<T>().FirstOrDefault(x => x.Id == id);
public virtual T Add(T entity) => Operations(entity: entity, state: EntityState.Added);
public virtual T Update(T entity) => Operations(entity: entity, state: EntityState.Modified);
public virtual T Delete(T entity) => Operations(entity: entity, state: EntityState.Deleted);
public virtual T Operations(T entity, EntityState state)
{
EntityEntry dbEntityEntry = context.Entry<T>(entity);
if (state == EntityState.Added)
{
entity.CreationDateTime = DateTime.UtcNow;
entity.CreationUserId = 1;
context.Set<T>().Add(entity);
dbEntityEntry.State = EntityState.Added;
}
else if (state == EntityState.Modified)
{
entity.LastModificationDateTime = DateTime.UtcNow;
entity.LastModificationUserId = 1;
var local = context.Set<T>().Local.FirstOrDefault(entry => entry.Id.Equals(entity.Id));
if (local != null)
{
context.Entry(local).State = EntityState.Detached;
}
dbEntityEntry.State = EntityState.Modified;
}
else if (state == EntityState.Deleted)
{
entity.DeletionFlag = true;
entity.DeletionUserId = 1;
entity.DeletionDateTime = DateTime.UtcNow;
dbEntityEntry.State = EntityState.Modified;
}
return entity;
}
这里是我的控制人之一。
[Produces("application/json")]
[Route("api/Item")]
public class ItemController : Controller
{
private readonly IItemRepository repository;
private readonly IChangeLogRepository changeLogRepository;
private readonly IMapper mapper;
public ItemController(IItemRepository repository, IChangeLogRepository _changeLogRepository, IMapper mapper)
{
this.repository = repository;
this.changeLogRepository = _changeLogRepository;
this.mapper = mapper;
}
[HttpPost]
public IActionResult Post([FromBody]ItemDto transactionItemDto)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var item = repository.Add(mapper.Map<ItemDto, Item>(source: transactionItemDto));
repository.Commit();
ChangeLog log = new ChangeLog()
{
Log = "New Item Added"
};
changeLogRepository.Add(log);
changeLogRepository.Commit();
return new OkObjectResult(mapper.Map<Item, ItemDto>(source: item));
}
}
如果您在控制器中看到,我已经添加了一项,并提交了它,然后为该插入准备了日志,添加并提交了。
现在,我有几个问题,例如
如果有人可以帮助我,那将非常好。万分感激。谢谢。
您可以将操作筛选器用于变更日志,请参阅