实体框架核心在过滤时不包括相关实体

Question

我在EF Core上遇到了一个罕见的问题。

这是我的方法：

public async Task<Tuple<List<ProductDto>, int>> GetFilteredAsync(MainFilter filter)
{
    var filteredQuery = _repository.GetAll();

    if (filter.Active)
        filteredQuery = filteredQuery.Where(p => p.Active);

    filteredQuery = filteredQuery.Where(p => p.ProductAvailableDates.Any(pad => pad.Date.CompareDateWihtoutTime(filter.AvailableFrom) >= 0));

    if (filter.AvailableTo.HasValue)
    {
        filteredQuery = filteredQuery.Where(p => p.ProductAvailableDates.Any(pad => pad.Date.CompareDateWihtoutTime(filter.AvailableTo.Value) <= 0));
    }

    if (!string.IsNullOrEmpty(filter.City))
    {
        filteredQuery = filteredQuery.Where(p => p.City.Equals(filter.City));
    }

    if (filter.CategoryId.HasValue)
    {
        filteredQuery = filteredQuery.Where(p => p.CategoryProducts.Any(cp => cp.CategoryId == filter.CategoryId.Value));
    }

    if (!string.IsNullOrEmpty(filter.NameSubset))
        filteredQuery = filteredQuery.Where(p => p.Name.Contains(filter.NameSubset));

    if (filter.PriceHigherThan.HasValue)
        filteredQuery = filteredQuery.Where(p => p.Price > filter.PriceHigherThan);

    if (filter.PriceLowerThan.HasValue)
        filteredQuery = filteredQuery.Where(p => p.Price < filter.PriceLowerThan);

    if (filter.UserId.HasValue)
        filteredQuery = filteredQuery.Where(p => p.OwnerId.Equals(filter.UserId));

    filteredQuery = filteredQuery.Include(x => x.ProductImages);

    var numberOfEntities = filteredQuery.Count();

    // order items
    switch (filter.OrderItem)
    {
        case "name":
            filteredQuery = filteredQuery.OrderByAscOrDesc(filter.Ascending, x => x.Name);
            break;

        case "price":
            filteredQuery = filteredQuery.OrderByAscOrDesc(filter.Ascending, x => x.Price);
            break;

        case "creation_time":
            filteredQuery = filteredQuery.OrderByAscOrDesc(filter.Ascending, x => x.CreatedAt);
            break;
    }

    filteredQuery = filteredQuery.Paginate(filter);
    var filteredList = await filteredQuery.ToListAsync();

    var dtoList = await ConvertModelListToDtoList(filteredList);

    return new Tuple<List<ProductDto>, int>(dtoList, numberOfEntities);
}

根据过滤器参数过滤我的产品（可以正常工作），但是我的实体“产品”丢失了他的分类数据，例如：imagesUrls和ProductAvailableDate。调用方法repository.getAll时，该方法可用并返回，但是当我的查询被过滤且与产品相关的实体迷路时，有2种产品（其中有1个以上的imageUrl）丢失了问题，但是对于第3个产品和最后一个产品，一切都很好

产品实体：

    [Key]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid Id { get; set; }
    public List<CategoryProduct> CategoryProducts { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
    public double Price { get; set; }
    public string City { get; set; }
    public DateTime CreatedAt { get; set; }
    public DateTime? DeactivetedAt { get; set; }
    public Guid OwnerId { get; set; }
    public List<ProductImage> ProductImages { get; set; }
    public List<ProductAvailableDate> ProductAvailableDates { get; set; }

.Include()在这里无济于事。