Need to get AbpUsers table data by conventional DbContext way.

Hi dear @ismcagdas , @maliming , @acjh , @hikalkan , @alirizaadiyahsi I want to get the data from AbpUsers table in conventional way without using any repositories, UserManager Services etc.

Because, as I am converting my normal MVC source to ABP (#4234) it is impossible to change all the existing code to ABP standards. So my plan is to run the existing code as it is and follow ABP style for further development. I am very happy that it is almost successful and running.

Currently I am facing an important issue regarding the eager loading of AbpUsers table. Not only for eager loading, but also even i can’t get results of querying the AbpUsers table directly.

My Linq query in Controller is given below. The controller is derived from ABMControllerBase only (ABM is the project name):

 private ABMDbContext db = new ABMDbContext();

 var result = db.POMasters
                      .Include(x => x.PORevisionRemarks.Select(c => c.UserMaster))
                      .Include(x => x.UserMaster)
                      .Where(x => !x.IsDeleted && x.IsSubmitted)
                      .MapTo<List<POMasterListDto>>();

 // Trying to get the Users list by conventional way just for testing. 
 // But unfortunately, this also returns null
 var userList = db.Users.ToList();

Without including the UserMaster and PORevisionRemarks.UserMaster, the query runs smoothly. Also I can get results when including only PORevisionRemarks too.

When using the given query, I am getting the following error:

  The transaction has aborted.
System.Transactions.TransactionAbortedException: The transaction has aborted. ---> 
System.Data.SqlClient.SqlException: The transaction operation cannot be performed because there are pending requests working on this transaction.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.TdsParser.TdsExecuteTransactionManagerRequest(Byte[] buffer, TransactionManagerRequestType request, String transactionName, TransactionManagerIsolationLevel isoLevel, Int32 timeout, SqlInternalTransaction transaction, TdsParserStateObject stateObj, Boolean isDelegateControlRequest)
   at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransactionYukon(TransactionRequest transactionRequest, String transactionName, IsolationLevel iso, SqlInternalTransaction internalTransaction, Boolean isDelegateControlRequest)
   at System.Data.SqlClient.SqlInternalConnectionTds.ExecuteTransaction(TransactionRequest transactionRequest, String name, IsolationLevel iso, SqlInternalTransaction internalTransaction, Boolean isDelegateControlRequest)
   at System.Data.SqlClient.SqlDelegatedTransaction.SinglePhaseCommit(SinglePhaseEnlistment enlistment)
   --- End of inner exception stack trace ---
   at System.Transactions.TransactionStateAborted.EndCommit(InternalTransaction tx)
   at System.Transactions.CommittableTransaction.Commit()
   at System.Transactions.TransactionScope.InternalDispose()
   at System.Transactions.TransactionScope.Dispose()
   at Abp.EntityFramework.Uow.TransactionScopeEfTransactionStrategy.Commit()
   at Abp.EntityFramework.Uow.EfUnitOfWork.CompleteUow()
   at Abp.Domain.Uow.UnitOfWorkBase.Complete()
   at Abp.Web.Mvc.Uow.AbpMvcUowFilter.OnActionExecuted(ActionExecutedContext filterContext)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass7_0.<BeginInvokeActionMethodWithFilters>b__1(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase1.End()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_6.<BeginInvokeAction>b__3()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult)

The PORevisionRemark class:

public partial class PORevisionRemark
{
	public long Id { get; set; }

	public long POMasterId { get; set; }

	public string PONo { get; set; }

	public int RevisionNo { get; set; }

	public string Remarks { get; set; }

	public long RevisedBy { get; set; }
	[ForeignKey("RevisedBy")]
	public virtual User UserMaster { get; set; }

	public System.DateTime RevisedOn { get; set; }
    
        public virtual POMaster POMaster { get; set; }        
}

Also I have given a custom mapping between POMaster and POMasterListDto as follows:

cfg.CreateMap<POMaster, POMasterListDto>()
     .ForMember(dt => dt.CreatedUserName, op => op.MapFrom(s => s.UserMaster.Name ?? "User not Found"))
     .ForMember(dt => dt.RevisedUserName, op => op.MapFrom(s => s.PORevisionRemarks.Where(z => z.RevisionNo == s.CurrentRevisionNo).FirstOrDefault() == null ? "" : s.PORevisionRemarks.Where(z => z.RevisionNo == s.CurrentRevisionNo).FirstOrDefault().UserMaster.Name))

The same code is running successfully in my old project with another table instead of AbpUsers. Please help me out.

[maliming]

@sayassyk Try not to create objects manually, using dependency injection. https://github.com/sayassyk/module-zero-template/blob/master/src/AbpCompanyName.AbpProjectName.WebMpa/Controllers/UsersController.cs#L36

private readonly IUserAppService _userAppService;
private readonly RoleManager _roleManager;
private readonly AbpProjectNameDbContext db;

public UsersController(IUserAppService userAppService, RoleManager roleManager, AbpProjectNameDbContext dbContext)
{
	_userAppService = userAppService;
	_roleManager = roleManager;
	db = dbContext;
}

[sayassyk]

Made my day!! It worked!!! Thank you so much @maliming , @ismcagdas , @ryancyq for your awesome support!