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off unit of work feature #6990


User avatar
0
sunivycsm created

I am selecting user _identityUserRepository.

  var query = (await _identityUserRepository.GetQueryableAsync())
      .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
          x => x.Name != null &&
               x.Name.Contains(input.Filter));

But when I use the following code, it is automatically saved in the datatable.
foreach (var item in query)
{
     item.Name = item.Surname + item.Name;
}

Is there a way I can edit the data without automatically updating it to the database? Here is all my source information:

public virtual async Task<PagedResultDto<LookupDto<Guid>>> GetIdentityUserLookupAsync(LookupRequestDto input)
{
    var query = (await _identityUserRepository.GetQueryableAsync())
        .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
            x => x.Name != null &&
                 x.Name.Contains(input.Filter));

    foreach (var item in query)
    {
        item.Name = item.Surname + item.Name
    }

    var lookupData = await query.PageBy(input.SkipCount, input.MaxResultCount).ToDynamicListAsync<IdentityUser>();
    var totalCount = query.Count();
    return new PagedResultDto<LookupDto<Guid>>
    {
        TotalCount = totalCount,
        Items = ObjectMapper.Map<List<IdentityUser>, List<LookupDto<Guid>>>(lookupData)
    };
}
  • ABP Framework version: v7.4.1
  • UI Type: MVC
  • Database System: EF Core (SQL Server)
  • Tiered (for MVC) or Auth Server Separated (for Angular): yes/no
  • Exception message and full stack trace:
  • Steps to reproduce the issue:

7 Answer(s)
  • User Avatar
    0
    liangshiwei created
    Support Team Fullstack Developer

    You can try :

    var query = (await _identityUserRepository.GetQueryableAsync())
          .AsNoTracking() // add this
          .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
              x => x.Name != null &&
                   x.Name.Contains(input.Filter));
    
    
  • User Avatar
    0
    sunivycsm created

    Sorry, this code doesn't work.

  • User Avatar
    0
    liangshiwei created
    Support Team Fullstack Developer

    It seems like you are missing a namespace using.

    You can reference the Volo.Abp.EntityFrameworkCore package.

  • User Avatar
    0
    sunivycsm created

    using CMCUNI_THUCTAP.NganhHocs; using Volo.Abp.Identity; using CMCUNI_THUCTAP.TrinhDos; using CMCUNI_THUCTAP.Khoas; using System; using System.IO; using System.Linq; using System.Collections.Generic; using System.Threading.Tasks; using System.Linq.Dynamic.Core; using Microsoft.AspNetCore.Authorization; using Volo.Abp; using Volo.Abp.Application.Dtos; using Volo.Abp.Application.Services; using Volo.Abp.Domain.Repositories; using CMCUNI_THUCTAP.Permissions; using CMCUNI_THUCTAP.GiangViens; using MiniExcelLibs; using Volo.Abp.Content; using Volo.Abp.Authorization; using Volo.Abp.Caching; using Microsoft.Extensions.Caching.Distributed; using CMCUNI_THUCTAP.Shared;

    namespace CMCUNI_THUCTAP.GiangViens {

    [Authorize(CMCUNI_THUCTAPPermissions.GiangViens.Default)]
    public abstract class GiangViensAppServiceBase : CMCUNI_THUCTAPAppService
    {
        protected IDistributedCache&lt;GiangVienExcelDownloadTokenCacheItem, string&gt; _excelDownloadTokenCache;
        protected IGiangVienRepository _giangVienRepository;
        protected GiangVienManager _giangVienManager;
        protected IRepository&lt;Khoa, Guid&gt; _khoaRepository;
        protected IRepository&lt;TrinhDo, Guid&gt; _trinhDoRepository;
        protected IRepository&lt;IdentityUser, Guid&gt; _identityUserRepository;
        protected IRepository&lt;NganhHoc, Guid&gt; _nganhHocRepository;
    
        public GiangViensAppServiceBase(IGiangVienRepository giangVienRepository, GiangVienManager giangVienManager, IDistributedCache&lt;GiangVienExcelDownloadTokenCacheItem, string&gt; excelDownloadTokenCache, IRepository&lt;Khoa, Guid&gt; khoaRepository, IRepository&lt;TrinhDo, Guid&gt; trinhDoRepository, IRepository&lt;IdentityUser, Guid&gt; identityUserRepository, IRepository&lt;NganhHoc, Guid&gt; nganhHocRepository)
        {
            _excelDownloadTokenCache = excelDownloadTokenCache;
            _giangVienRepository = giangVienRepository;
            _giangVienManager = giangVienManager; _khoaRepository = khoaRepository;
            _trinhDoRepository = trinhDoRepository;
            _identityUserRepository = identityUserRepository;
            _nganhHocRepository = nganhHocRepository;
        }
    
        public virtual async Task&lt;PagedResultDto&lt;GiangVienWithNavigationPropertiesDto&gt;> GetListAsync(GetGiangViensInput input)
        {
            var totalCount = await _giangVienRepository.GetCountAsync(input.FilterText, input.MaGiangVien, input.TenGiangVien, input.KhoaId, input.TrinhDoId, input.IdentityUserId, input.NganhHocId);
            var items = await _giangVienRepository.GetListWithNavigationPropertiesAsync(input.FilterText, input.MaGiangVien, input.TenGiangVien, input.KhoaId, input.TrinhDoId, input.IdentityUserId, input.NganhHocId, input.Sorting, input.MaxResultCount, input.SkipCount);
    
            return new PagedResultDto&lt;GiangVienWithNavigationPropertiesDto&gt;
            {
                TotalCount = totalCount,
                Items = ObjectMapper.Map&lt;List&lt;GiangVienWithNavigationProperties&gt;, List&lt;GiangVienWithNavigationPropertiesDto&gt;>(items)
            };
        }
    
        public virtual async Task&lt;GiangVienWithNavigationPropertiesDto&gt; GetWithNavigationPropertiesAsync(Guid id)
        {
            return ObjectMapper.Map&lt;GiangVienWithNavigationProperties, GiangVienWithNavigationPropertiesDto&gt;
                (await _giangVienRepository.GetWithNavigationPropertiesAsync(id));
        }
    
        public virtual async Task&lt;GiangVienDto&gt; GetAsync(Guid id)
        {
            return ObjectMapper.Map&lt;GiangVien, GiangVienDto&gt;(await _giangVienRepository.GetAsync(id));
        }
    
        public virtual async Task&lt;PagedResultDto&lt;LookupDto&lt;Guid&gt;>> GetKhoaLookupAsync(LookupRequestDto input)
        {
            var query = (await _khoaRepository.GetQueryableAsync())
                .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
                    x => x.TenKhoa != null &&
                         x.TenKhoa.Contains(input.Filter));
    
            var lookupData = await query.PageBy(input.SkipCount, input.MaxResultCount).ToDynamicListAsync&lt;Khoa&gt;();
            var totalCount = query.Count();
            return new PagedResultDto&lt;LookupDto&lt;Guid&gt;>
            {
                TotalCount = totalCount,
                Items = ObjectMapper.Map&lt;List&lt;Khoa&gt;, List&lt;LookupDto&lt;Guid&gt;>>(lookupData)
            };
        }
    
        public virtual async Task&lt;PagedResultDto&lt;LookupDto&lt;Guid&gt;>> GetTrinhDoLookupAsync(LookupRequestDto input)
        {
            var query = (await _trinhDoRepository.GetQueryableAsync())
                .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
                    x => x.TenTrinhDo != null &&
                         x.TenTrinhDo.Contains(input.Filter));
    
            var lookupData = await query.PageBy(input.SkipCount, input.MaxResultCount).ToDynamicListAsync&lt;TrinhDo&gt;();
            var totalCount = query.Count();
            return new PagedResultDto&lt;LookupDto&lt;Guid&gt;>
            {
                TotalCount = totalCount,
                Items = ObjectMapper.Map&lt;List&lt;TrinhDo&gt;, List&lt;LookupDto&lt;Guid&gt;>>(lookupData)
            };
        }
    
        public virtual async Task&lt;PagedResultDto&lt;LookupDto&lt;Guid&gt;>> GetIdentityUserLookupAsync(LookupRequestDto input)
        {
            var query = (await _identityUserRepository.GetQueryableAsync())
                .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
                    x => x.Name != null &&
                         x.Name.Contains(input.Filter));
    
            var lookupData = await query.PageBy(input.SkipCount, input.MaxResultCount).ToDynamicListAsync&lt;IdentityUser&gt;();
            var totalCount = query.Count();
            return new PagedResultDto&lt;LookupDto&lt;Guid&gt;>
            {
                TotalCount = totalCount,
                Items = ObjectMapper.Map&lt;List&lt;IdentityUser&gt;, List&lt;LookupDto&lt;Guid&gt;>>(lookupData)
            };
        }
    
        public virtual async Task&lt;PagedResultDto&lt;LookupDto&lt;Guid&gt;>> GetNganhHocLookupAsync(LookupRequestDto input)
        {
            var query = (await _nganhHocRepository.GetQueryableAsync())
                .WhereIf(!string.IsNullOrWhiteSpace(input.Filter),
                    x => x.TenNganh != null &&
                         x.TenNganh.Contains(input.Filter));
    
            var lookupData = await query.PageBy(input.SkipCount, input.MaxResultCount).ToDynamicListAsync&lt;NganhHoc&gt;();
            var totalCount = query.Count();
            return new PagedResultDto&lt;LookupDto&lt;Guid&gt;>
            {
                TotalCount = totalCount,
                Items = ObjectMapper.Map&lt;List&lt;NganhHoc&gt;, List&lt;LookupDto&lt;Guid&gt;>>(lookupData)
            };
        }
    
        [Authorize(CMCUNI_THUCTAPPermissions.GiangViens.Delete)]
        public virtual async Task DeleteAsync(Guid id)
        {
            await _giangVienRepository.DeleteAsync(id);
        }
    
        [Authorize(CMCUNI_THUCTAPPermissions.GiangViens.Create)]
        public virtual async Task&lt;GiangVienDto&gt; CreateAsync(GiangVienCreateDto input)
        {
            if (input.KhoaId == default)
            {
                throw new UserFriendlyException(L["The {0} field is required.", L["Khoa"]]);
            }
            if (input.TrinhDoId == default)
            {
                throw new UserFriendlyException(L["The {0} field is required.", L["TrinhDo"]]);
            }
    
            var giangVien = await _giangVienManager.CreateAsync(
            input.NganhHocIds, input.KhoaId, input.TrinhDoId, input.IdentityUserId, input.MaGiangVien, input.TenGiangVien
            );
    
            return ObjectMapper.Map&lt;GiangVien, GiangVienDto&gt;(giangVien);
        }
    
        [Authorize(CMCUNI_THUCTAPPermissions.GiangViens.Edit)]
        public virtual async Task&lt;GiangVienDto&gt; UpdateAsync(Guid id, GiangVienUpdateDto input)
        {
            if (input.KhoaId == default)
            {
                throw new UserFriendlyException(L["The {0} field is required.", L["Khoa"]]);
            }
            if (input.TrinhDoId == default)
            {
                throw new UserFriendlyException(L["The {0} field is required.", L["TrinhDo"]]);
            }
    
            var giangVien = await _giangVienManager.UpdateAsync(
            id,
            input.NganhHocIds, input.KhoaId, input.TrinhDoId, input.IdentityUserId, input.MaGiangVien, input.TenGiangVien, input.ConcurrencyStamp
            );
    
            return ObjectMapper.Map&lt;GiangVien, GiangVienDto&gt;(giangVien);
        }
    
        [AllowAnonymous]
        public virtual async Task&lt;IRemoteStreamContent&gt; GetListAsExcelFileAsync(GiangVienExcelDownloadDto input)
        {
            var downloadToken = await _excelDownloadTokenCache.GetAsync(input.DownloadToken);
            if (downloadToken == null || input.DownloadToken != downloadToken.Token)
            {
                throw new AbpAuthorizationException("Invalid download token: " + input.DownloadToken);
            }
    
            var giangViens = await _giangVienRepository.GetListWithNavigationPropertiesAsync(input.FilterText, input.MaGiangVien, input.TenGiangVien, input.KhoaId, input.TrinhDoId, input.IdentityUserId, input.NganhHocId);
            var items = giangViens.Select(item => new
            {
                MaGiangVien = item.GiangVien.MaGiangVien,
                TenGiangVien = item.GiangVien.TenGiangVien,
    
                Khoa = item.Khoa?.TenKhoa,
                TrinhDo = item.TrinhDo?.TenTrinhDo,
                IdentityUser = item.IdentityUser?.Name,
    
            });
    
            var memoryStream = new MemoryStream();
            await memoryStream.SaveAsAsync(items);
            memoryStream.Seek(0, SeekOrigin.Begin);
    
            return new RemoteStreamContent(memoryStream, "GiangViens.xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        }
    
        public virtual async Task&lt;CMCUNI_THUCTAP.Shared.DownloadTokenResultDto&gt; GetDownloadTokenAsync()
        {
            var token = Guid.NewGuid().ToString("N");
    
            await _excelDownloadTokenCache.SetAsync(
                token,
                new GiangVienExcelDownloadTokenCacheItem { Token = token },
                new DistributedCacheEntryOptions
                {
                    AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(30)
                });
    
            return new CMCUNI_THUCTAP.Shared.DownloadTokenResultDto
            {
                Token = token
            };
        }
    }
    

    }

  • User Avatar
    0
    liangshiwei created
    Support Team Fullstack Developer

    Sorry, I didn't get it.

  • User Avatar
    0
    sunivycsm created

    @liangshiwei Here is my source code. When I add AsNoTracking I get the following error: Should I add any additional libraries?

  • User Avatar
    0
    liangshiwei created
    Support Team Fullstack Developer

    It seems like you are missing a namespace using.

    You can reference the Volo.Abp.EntityFrameworkCore package.

    https://support.abp.io/qa/questions/6990/3a11ba66-def0-421c-d1f2-39f9047dcb62

Made with ❤️ on ABP v9.1.0-preview. Updated on December 12, 2024, 07:15