Question

我创建了表

    private static void CreateTable(SchemaBuilder builder) {
        builder.CreateTable(typeof(RkeeperV7MenuRecord).Name, table => table
            .Column<int>("Id", c => c.PrimaryKey().Identity())
            .Column<int>("SpotId", c => c.NotNull())
            .Column<DateTime>("Date", c => c.NotNull())
            .Column<string>("OriginalData", c => c.NotNull().Unlimited())
            );

创建了SQL Server数据库中的表（并且字符串在legth属性中具有max）。如果我从DB服务器生成SQL表脚本，它将是这样的（所以字符串被标记为无限制）

CREATE TABLE [dbo].[Plus_Plus_SpotServerIntegration_Rkeeper_RkeeperV7MenuRecord](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [SpotId] [int] NOT NULL,
    [Date] [datetime] NOT NULL,
    [OriginalData] [nvarchar](max) NOT NULL,
PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

但是...当我尝试在表中插入记录时，nhibernate抛出异常“错误使Plus.SpotServerIntegration.Rkeeper.Models.RkeeperV7MenuRecord.OriginalData的属性值脱水”并且内部异常是“字符串值的长度超过了在映射/参数中配置的长度。“ 我该怎么做才能插入记录？

PS string大约是100000个符号（它是xml）

            _rkeeperV7MenuRepositiory.Create(new RkeeperV7MenuRecord {
                OriginalData = model.OriginalData,
                SpotId = spot.Id,
                Date = _clock.UtcNow
            });

，其中

private readonly IRepository<RkeeperV7MenuRecord> _rkeeperV7MenuRepositiory;

Answer 1

知道了！应按照属性“StringLengthMax”标记属性记录，如此

public class RkeeperV7MenuRecord : DefaultEntityRecord {
    public virtual int SpotId { get; set; }
    public virtual DateTime Date { get; set; }
    [StringLengthMax]
    public virtual string OriginalData { get; set; }
}

无法在Orchard中将长字符串插入数据库表

1 个答案: