Triggers Dependency injection not working

[mohammed-yehia-zkaria]

            Triggers<ITrackable<User, int>,DDD_Context>.GlobalInserting.Add<IClaimService>(entry =>
            {
                var service = entry.Service;
                entry.Entity.CreatedAt = DateTime.Now;
                entry.Entity.UpdatedAt = DateTime.Now;
                entry.Entity.CreatedById = service.CurrentUser.Id;
                entry.Entity.UpdatedById = service.CurrentUser.Id;
            });

[mohammed-yehia-zkaria]

exception is Value cannot be null. (Parameter 'provider')

[NickStrupat]

I'm not sure that exception is coming from this library. I just did a global search for provider and didn't get any results for a parameter named provider.

Do you have a minimal sample project showing the exception?

[mohammed-yehia-zkaria]

package used NickStrupat.EntityFrameworkCore.Triggers.AspNetCore version 1.0.3

[mohammed-yehia-zkaria]

stacktrace

at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)\r\n at lambda_method(Closure , IServiceProvider )\r\n at EntityFrameworkCore.Triggers.ServiceRetrieval1.GetService(IServiceProvider serviceProvider)\r\n at EntityFrameworkCore.Triggers.WrappedEntry4..ctor(TEntry entry)\r\n at EntityFrameworkCore.Triggers.WrappedBeforeEntry4..ctor(TEntry entry)\r\n at EntityFrameworkCore.Triggers.WrappedInsertingEntry3..ctor(IInsertingEntry2 entry)\r\n at EntityFrameworkCore.Triggers.InsertingTriggerEvent2.<>cDisplayClass0_01.<Add>b__0(IInsertingEntry2 entry)\r\n at EntityFrameworkCore.Triggers.DelegateSynchronyUnion1.Invoke(T value)\r\n at EntityFrameworkCore.Triggers.TriggerEvent3.WrappedHandler.Invoke(TEntry entry)\r\n at EntityFrameworkCore.Triggers.TriggerEvent3.RaiseInternal(Object entry)\r\n at EntityFrameworkCore.Triggers.TriggerEvent.Raise(Object entry)\r\n at EntityFrameworkCore.Triggers.TriggerEventExtensions.Raise(ITriggerEvent triggersEvent, Object entry)\r\n at EntityFrameworkCore.Triggers.TriggerEntityInvoker2.<>c__DisplayClass19_1`1.gRaiseGlobalThenInstance|3(TEntry entry, IServiceProvider sp)\r\n at EntityFrameworkCore.Triggers.TriggerEntityInvoker2.<>c__DisplayClass19_01.gRaiseActions|0(TEntry entry, IServiceProvider sp)\r\n at EntityFrameworkCore.Triggers.TriggerEntityInvoker2.RaiseInserting(IServiceProvider sp, Object entity, TDbContext dbc, Boolean& cancel)\r\n at EntityFrameworkCore.Triggers.TriggerInvoker1.RaiseChangingEvent(EntityEntry entry, DbContext dbContext, IServiceProvider serviceProvider, Boolean& cancel)\r\n at EntityFrameworkCore.Triggers.TriggerInvoker1.RaiseChangingEvents(DbContext dbContext, IServiceProvider serviceProvider)\r\n at EntityFrameworkCore.Triggers.DbContextExtensions.SaveChangesWithTriggers(DbContext dbContext, Func2 baseSaveChanges, IServiceProvider serviceProvider, Boolean acceptAllChangesOnSuccess)\r\n at EntityFrameworkCore.Triggers.DbContextExtensions.SaveChangesWithTriggers(DbContext dbContext, Func`2 baseSaveChanges, Boolean acceptAllChangesOnSuccess)\r\n at DDD.Data.Context.DDD_Context.SaveChanges() in D:\learning\DDD_DotNet\DDD\DDD.Data\Database\Context.cs:line 23\r\n at DDD.Data.UnitOfWork.Commit() in D:\learning\DDD_DotNet\DDD\DDD.Data\UnitOfWork.cs:line 36\r\n at DDD.Core.Services.PolicyService.AddPolicy(PolicyDto policyDto) in D:\learning\DDD_DotNet\DDD\DDD.Core\Services\PolicyService.cs:line 55\r\n at DDD.API.Controllers.WeatherForecastController.PostPolciy(PolicyDto policy) in D:\learning\DDD_DotNet\DDD\DDD.API\Controllers\WeatherForecastController.cs:line 79\r\n at lambda_method(Closure , Object , Object[] )\r\n at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeActionMethodAsync()\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeNextActionFilterAsync()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()\r\n--- End of stack trace from previous location where exception was thrown ---\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.gAwaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)\r\n at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)\r\n at Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger)\r\n at DDD.API.Middlewares.ExceptionHandlerMiddleware.Invoke(HttpContext context) in D:\learning\DDD_DotNet\DDD\DDD.API\Middlewares\ExceptionHandlerMiddleware.cs:line 30",

[NickStrupat]

I can't really help you with just a stack trace. I need to see code that recreates this issue.