Question

我正在努力 http://www.ideliverable.com/blog/writing-an-orchard-webshop-module-from-scratch-part-9

我的果园版本是1.9

OrderRecord.cs

public class OrderRecord
    {
        public virtual int Id { get; set; }
        public virtual int CustomerId { get; set; }
        public virtual DateTime CreatedAt { get; set; }
        public virtual decimal SubTotal { get; set; }
        public virtual decimal Vat { get; set; }
        public virtual OrderStatus Status { get; set; }
        public virtual IList<OrderDetailRecord> Details { get; private set; }
        public virtual string PaymentServiceProviderResponse { get; set; }
        public virtual string PaymentReference { get; set; }
        public virtual DateTime? PaidAt { get; set; }
        public virtual DateTime? CompletedAt { get; set; }
        public virtual DateTime? CancelledAt { get; set; }

        public virtual decimal Total
        {
            get { return SubTotal + Vat; }
            private set { }
        }

        public virtual string Number
        {
            get { return (Id + 1000).ToString(CultureInfo.InvariantCulture); }
            private set { }
        }

        public OrderRecord()
        {
            Details = new List<OrderDetailRecord>();
        }

        public virtual void UpdateTotals()
        {
            var subTotal = 0m;
            var vat = 0m;

            foreach (var detail in Details)
            {
                subTotal += detail.SubTotal;
                vat += detail.Vat;
            }

            SubTotal = subTotal;
            Vat = vat;
        }

没有额外的内容部分类，因为我需要使用id和方法在同一个类中定义。不必创建表的字段设置器被定义为私有。 Total和Number

Migration.cs

 SchemaBuilder.CreateTable("OrderRecord", t => t
                    .Column<int>("Id", c => c.PrimaryKey().Identity())
                    .Column<int>("CustomerId", c => c.NotNull())
                    .Column<DateTime>("CreatedAt", c => c.NotNull())
                    .Column<decimal>("SubTotal", c => c.NotNull())
                    .Column<decimal>("Vat", c => c.NotNull())
                    .Column<string>("Status", c => c.WithLength(50).NotNull())
                    .Column<string>("PaymentServiceProviderResponse", c => c.WithLength(null))
                    .Column<string>("PaymentReference", c => c.WithLength(50))
                    .Column<DateTime>("PaidAt", c => c.Nullable())
                    .Column<DateTime>("CompletedAt", c => c.Nullable())
                    .Column<DateTime>("CancelledAt", c => c.Nullable())

                    );

使用这些字段正确创建表但是当我想在OrderService.cs中使用IRepository.Create（T Entity）方法创建OrderRecord时，它会将未绑定的字段发送到表中。 Total和Number。

OrderService.cs

public OrderRecord CreateOrder(int customerId, IEnumerable<ShoppingCartItem> items)
{

    if (items == null)
        throw new ArgumentNullException("items");

    // Convert to an array to avoid re-running the enumerable
    var itemsArray = items.ToArray();

    if (!itemsArray.Any())
        throw new ArgumentException("Creating an order with 0 items is not supported", "items");

    var order = new OrderRecord
    {
        CreatedAt = _dateTimeService.Now,
        CustomerId = customerId,
        Status = OrderStatus.New
    };

    _orderRepository.Create(order);

最后一行抛出错误这是错误日志：

2018-04-20 18：37：15,871 [16] Orchard.Exceptions.DefaultExceptionPolicy - 默认 - 捕获到意外的异常[http://localhost:64607/Orchard.WebShop/Order/Create] NHibernate.Exceptions.GenericADOException：无法插入： [Orchard.Webshop.Models.OrderRecord] [SQL：INSERT INTO Orchard_Webshop_OrderRecord（CustomerId，CreatedAt，SubTotal，Vat，状态，PaymentServiceProviderResponse，PaymentReference，PaidAt， CompletedAt，CancelledAt，Total，Number）VALUES（？，？，？，？，？，？，？，？，？，？，？，？）;选择SCOPE_IDENTITY（）] ---＆gt; System.Data.SqlClient.SqlException：无效的列名称“Total”。列名称“Number”无效。声明无法准备在System.Data.SqlClient.SqlConnection.OnError（SqlException异常，布尔值breakConnection，Action 1 wrapCloseInAction) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action 1 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，布尔＆amp; dataReady）at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData（）at System.Data.SqlClient.SqlDataReader.get_MetaData（）at System.Data.SqlClient.SqlCommand.FinishExecuteReader（SqlDataReader ds， RunBehavior runBehavior，String resetOptionsString，Boolean isInternal，Boolean forDescribeParameterEncryption）at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds（的CommandBehavior cmdBehavior，RunBehavior runBehavior，Boolean returnStream，Boolean async，Int32超时，任务＆amp; task，Boolean asyncWrite，Boolean inRetry， SqlDataReader ds，Boolean describeParameterEncryptionRequest）at System.Data.SqlClient.SqlCommand.RunExecuteReader（的CommandBehavior cmdBehavior，RunBehavior runBehavior，Boolean returnStream，String 方法，TaskCompletionSource 1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader() at NHibernate.AdoNet.AbstractBatcher.ExecuteReader(IDbCommand cmd) at NHibernate.Id.IdentityGenerator.InsertSelectDelegate.ExecuteAndExtract(IDbCommand insert, ISessionImplementor session) at NHibernate.Id.Insert.AbstractReturningDelegate.PerformInsert(SqlCommandInfo insertSQL, ISessionImplementor session, IBinder binder) --- End of inner exception stack trace --- at NHibernate.Id.Insert.AbstractReturningDelegate.PerformInsert(SqlCommandInfo insertSQL, ISessionImplementor session, IBinder binder) at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object[] fields, Boolean[] notNull, SqlCommandInfo sql, Object obj, ISessionImplementor session) at NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object[] fields, Object obj, ISessionImplementor session) at NHibernate.Action.EntityIdentityInsertAction.Execute() at NHibernate.Engine.ActionQueue.Execute(IExecutable executable) at NHibernate.Event.Default.AbstractSaveEventListener.PerformSaveOrReplicate(Object entity, EntityKey key, IEntityPersister persister, Boolean useIdentityColumn, Object anything, IEventSource source, Boolean requiresImmediateIdAccess) at NHibernate.Event.Default.AbstractSaveEventListener.PerformSave(Object entity, Object id, IEntityPersister persister, Boolean useIdentityColumn, Object anything, IEventSource source, Boolean requiresImmediateIdAccess) at NHibernate.Event.Default.AbstractSaveEventListener.SaveWithGeneratedId(Object entity, String entityName, Object anything, IEventSource source, Boolean requiresImmediateIdAccess) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.EntityIsTransient(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent event) at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent event) at NHibernate.Impl.SessionImpl.FireSave(SaveOrUpdateEvent event) at NHibernate.Impl.SessionImpl.Save(Object obj) at Orchard.Data.Repository 1.创建（T实体）in C：\ Users \ Selman \ Orchard-dev \ src \ Orchard \ Data \ Repository.cs：第93行在Orchard.Data.Repository 1.Orchard.Data.IRepository<T>.Create(T entity) in C:\Users\Selman\Orchard-dev\src\Orchard\Data\Repository.cs:line 33 at Orchard.Webshop.Services.OrderService.CreateOrder(Int32 customerId, IEnumerable 1项）in C：\用户\塞尔曼\果园开发的\ src \ Orchard.Web \模块\ Orchard.Webshop \ SERVICES \ OrderService.cs：行 46在Orchard.Webshop.Controllers.OrderController.Create（）中 C：\用户\塞尔曼\果园-dev的\ SRC \ Orchard.Web \模块\ Orchard.Webshop \控制器\ OrderController.cs：线 48在lambda_method（Closure，ControllerBase，Object []）at System.Web.Mvc.ActionMethodDispatcher.Execute（ControllerBase controller，Object []参数）at System.Web.Mvc.ReflectedActionDescriptor.Execute（ControllerContext controllerContext，IDictionary 2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary 2 参数）at System.Web.Mvc.Async.AsyncControllerActionInvoker.b__39（IAsyncResult的 asyncResult，ActionInvocation innerInvokeState）at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult 2.CallEndDelegate(IAsyncResult asyncResult) at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase 1.End（）在 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod（IAsyncResult的 asyncResult）at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.b__3d（）在 System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters＆LT;＆GT; c__DisplayClass46.b__3f（）在 System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters＆LT;＆GT; c__DisplayClass46.b__3f（）在 System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters＆LT;＆GT; c__DisplayClass46.b__3f（）

解决方案

我暂时找到了解决方案。我将Total和Number字段转换为方法public virtual decimal Total()和public virtual string Number()。它现在可以工作。

果园IRepository.Create错误

0 个答案: