ASPBoilerplate - .Net Core 3 错误 - 以可翻译的形式重写查询

如何解决ASPBoilerplate - .Net Core 3 错误 - 以可翻译的形式重写查询

我试图显示属于用户所属的任何组织单位的实体的所有记录。我在 Where 子句中收到以下错误。我可以注释掉 where 子句，一切正常。显然这并不理想，但我知道错误来自那条线。我明白发生了什么，但我不知道如何解决。

错误如下：要么以可翻译的形式重写查询，要么通过插入对“AsEnumerable”、“AsAsyncEnumerable”、“ToList”或“ToListAsync”的调用来显式切换到客户端评估.

感谢任何帮助。

这是我的代码：

  public async Task<PagedResultDto<GetCouponForViewDto>> GetAll(GetAllCouponsInput input)
    {
        var user = await _userManager.GetUserByIdAsync(AbpSession.UserId??0);
        var organizationUnits = _userManager.GetorganizationUnits(user);
        var organizationUnitCodes = organizationUnits.Select(ou => ou.Code);


        var filteredCoupons = _couponRepository.GetAll()
                    .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),e => false || e.Description.Contains(input.Filter))
                    .WhereIf(!string.IsNullOrWhiteSpace(input.DescriptionFilter),e => e.Description == input.DescriptionFilter);

        var pagedAndFilteredCoupons = filteredCoupons
            .OrderBy(input.sorting ?? "id asc")
            .PageBy(input);



        var coupons = from o in pagedAndFilteredCoupons
                      join organizationUnit in _organizationUnitRepository.GetAll() on 
                      o.OrganizationUnitId equals organizationUnit.Id

                      // ** **This next line is where the error is coming from** ** //

                      where organizationUnitCodes.Any(code => organizationUnit.Code.StartsWith(code))

                      select new GetCouponForViewDto()
                      {
                          Coupon = new CouponDto
                          {
                              Description = o.Description,Id = o.Id
                          }
                      };


        var totalCount = await coupons.CountAsync();

        return new PagedResultDto<GetCouponForViewDto>(
            totalCount,await coupons.ToListAsync()
        );
    }