流畅的NHibernate/SQL Server 2008插入查询问题
我是 Fluent NHibernate 的新手,遇到了问题。
我有一个映射定义如下:
public PersonMapping()
{
Id(p => p.Id).GeneratedBy.HiLo("1000");
Map(p => p.FirstName).Not.Nullable().Length(50);
Map(p => p.MiddleInitial).Nullable().Length(1);
Map(p => p.LastName).Not.Nullable().Length(50);
Map(p => p.Suffix).Nullable().Length(3);
Map(p => p.SSN).Nullable().Length(11);
Map(p => p.BirthDate).Nullable();
Map(p => p.CellPhone).Nullable().Length(12);
Map(p => p.HomePhone).Nullable().Length(12);
Map(p => p.WorkPhone).Nullable().Length(12);
Map(p => p.OtherPhone).Nullable().Length(12);
Map(p => p.EmailAddress).Nullable().Length(50);
Map(p => p.DriversLicenseNumber).Nullable().Length(50);
Component<Address>(p => p.CurrentAddress, m =>
{
m.Map(p => p.Line1, "Line1").Length(50);
m.Map(p => p.Line2, "Line2").Length(50);
m.Map(p => p.City, "City").Length(50);
m.Map(p => p.State, "State").Length(50);
m.Map(p => p.Zip, "Zip").Length(2);
});
Map(p => p.EyeColor).Nullable().Length(3);
Map(p => p.HairColor).Nullable().Length(3);
Map(p => p.Gender).Nullable().Length(1);
Map(p => p.Height).Nullable();
Map(p => p.Weight).Nullable();
Map(p => p.Race).Nullable().Length(1);
Map(p => p.SkinTone).Nullable().Length(3);
HasMany(p => p.PriorAddresses).Cascade.All();
}
public PreviousAddressMapping()
{
Table("PriorAddress");
Id(p => p.Id).GeneratedBy.HiLo("1000");
Map(p => p.EndEffectiveDate).Not.Nullable();
Component<Address>(p => p.Address, m =>
{
m.Map(p => p.Line1, "Line1").Length(50);
m.Map(p => p.Line2, "Line2").Length(50);
m.Map(p => p.City, "City").Length(50);
m.Map(p => p.State, "State").Length(50);
m.Map(p => p.Zip, "Zip").Length(2);
});
}
我的测试是
[Test]
public void can_correctly_map_Person_with_Addresses()
{
var myPerson = new Person("Jane", "", "Doe");
var priorAddresses = new[]
{
new PreviousAddress(ObjectMother.GetAddress1(), DateTime.Parse("05/13/2010")),
new PreviousAddress(ObjectMother.GetAddress2(), DateTime.Parse("05/20/2010"))
};
new PersistenceSpecification<Person>(Session)
.CheckProperty(c => c.FirstName, myPerson.FirstName)
.CheckProperty(c => c.LastName, myPerson.LastName)
.CheckProperty(c => c.MiddleInitial, myPerson.MiddleInitial)
.CheckList(c => c.PriorAddresses, priorAddresses)
.VerifyTheMappings();
}
GetAddress1() (是的,可怕的名字)有 Line2 == null
这些表似乎在 sql server 2008 中正确创建,但测试失败并出现 SQLException“字符串或二进制数据将被截断。”当我在 SQL Profiler 中获取 sql 语句时,我注意到
exec sp_executesql N'INSERT INTO PriorAddress (Line1, Line2, City, State, Zip,
EndEffectiveDate, Id) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6)',N'@p0
nvarchar(18),@p1 nvarchar(4000),@p2 nvarchar(10),@p3 nvarchar(2),@p4 nvarchar(5),@p5
datetime,@p6 int',@p0=N'6789 Somewhere Rd.',@p1=NULL,@p2=N'Hot
Coffee',@p3=N'MS',@p4=N'09876',@p5='2010-05-13 00:00:00',@p6=1001
@p1 参数被设置为 nvarchar(4000) 并传递了 NULL 值。
为什么将参数设置为 nvarchar(4000)?我该如何修复它?
谢谢!
我认为它与 Line2 参数有关的第一个理论是错误的。我向 Line2 添加了一个值,重新运行测试,但仍然遇到相同的错误。
exec sp_executesql N'INSERT INTO PriorAddress
(Line1, Line2, City, State, Zip, EndEffectiveDate, Id)
VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6)',
N'@p0 nvarchar(18),@p1 nvarchar(6),@p2 nvarchar(10),@p3 nvarchar(2),@p4
nvarchar(5),@p5 datetime,@p6 int',
@p0=N'6789 Somewhere Rd.',
@p1=N'A test',
@p2=N'Hot Coffee',
@p3=N'MS',
@p4=N'09876',
@p5='2010-05-13 00:00:00',
@p6=1001
I'm new to Fluent NHibernate and I'm running into a problem.
I have a mapping defined as follows:
public PersonMapping()
{
Id(p => p.Id).GeneratedBy.HiLo("1000");
Map(p => p.FirstName).Not.Nullable().Length(50);
Map(p => p.MiddleInitial).Nullable().Length(1);
Map(p => p.LastName).Not.Nullable().Length(50);
Map(p => p.Suffix).Nullable().Length(3);
Map(p => p.SSN).Nullable().Length(11);
Map(p => p.BirthDate).Nullable();
Map(p => p.CellPhone).Nullable().Length(12);
Map(p => p.HomePhone).Nullable().Length(12);
Map(p => p.WorkPhone).Nullable().Length(12);
Map(p => p.OtherPhone).Nullable().Length(12);
Map(p => p.EmailAddress).Nullable().Length(50);
Map(p => p.DriversLicenseNumber).Nullable().Length(50);
Component<Address>(p => p.CurrentAddress, m =>
{
m.Map(p => p.Line1, "Line1").Length(50);
m.Map(p => p.Line2, "Line2").Length(50);
m.Map(p => p.City, "City").Length(50);
m.Map(p => p.State, "State").Length(50);
m.Map(p => p.Zip, "Zip").Length(2);
});
Map(p => p.EyeColor).Nullable().Length(3);
Map(p => p.HairColor).Nullable().Length(3);
Map(p => p.Gender).Nullable().Length(1);
Map(p => p.Height).Nullable();
Map(p => p.Weight).Nullable();
Map(p => p.Race).Nullable().Length(1);
Map(p => p.SkinTone).Nullable().Length(3);
HasMany(p => p.PriorAddresses).Cascade.All();
}
public PreviousAddressMapping()
{
Table("PriorAddress");
Id(p => p.Id).GeneratedBy.HiLo("1000");
Map(p => p.EndEffectiveDate).Not.Nullable();
Component<Address>(p => p.Address, m =>
{
m.Map(p => p.Line1, "Line1").Length(50);
m.Map(p => p.Line2, "Line2").Length(50);
m.Map(p => p.City, "City").Length(50);
m.Map(p => p.State, "State").Length(50);
m.Map(p => p.Zip, "Zip").Length(2);
});
}
My test is
[Test]
public void can_correctly_map_Person_with_Addresses()
{
var myPerson = new Person("Jane", "", "Doe");
var priorAddresses = new[]
{
new PreviousAddress(ObjectMother.GetAddress1(), DateTime.Parse("05/13/2010")),
new PreviousAddress(ObjectMother.GetAddress2(), DateTime.Parse("05/20/2010"))
};
new PersistenceSpecification<Person>(Session)
.CheckProperty(c => c.FirstName, myPerson.FirstName)
.CheckProperty(c => c.LastName, myPerson.LastName)
.CheckProperty(c => c.MiddleInitial, myPerson.MiddleInitial)
.CheckList(c => c.PriorAddresses, priorAddresses)
.VerifyTheMappings();
}
GetAddress1() (yeah, horrible name) has Line2 == null
The tables seem to be created correctly in sql server 2008, but the test fails with a SQLException "String or binary data would be truncated." When I grab the sql statement in SQL Profiler, I get
exec sp_executesql N'INSERT INTO PriorAddress (Line1, Line2, City, State, Zip,
EndEffectiveDate, Id) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6)',N'@p0
nvarchar(18),@p1 nvarchar(4000),@p2 nvarchar(10),@p3 nvarchar(2),@p4 nvarchar(5),@p5
datetime,@p6 int',@p0=N'6789 Somewhere Rd.',@p1=NULL,@p2=N'Hot
Coffee',@p3=N'MS',@p4=N'09876',@p5='2010-05-13 00:00:00',@p6=1001
Notice the @p1 parameter is being set to nvarchar(4000) and being passed a NULL value.
Why is it setting the parameter to nvarchar(4000)? How can I fix it?
Thanks!
My first theory that it was related to the Line2 parameter was wrong. I added a value to Line2, re-ran the test, and I'm still getting the same error.
exec sp_executesql N'INSERT INTO PriorAddress
(Line1, Line2, City, State, Zip, EndEffectiveDate, Id)
VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6)',
N'@p0 nvarchar(18),@p1 nvarchar(6),@p2 nvarchar(10),@p3 nvarchar(2),@p4
nvarchar(5),@p5 datetime,@p6 int',
@p0=N'6789 Somewhere Rd.',
@p1=N'A test',
@p2=N'Hot Coffee',
@p3=N'MS',
@p4=N'09876',
@p5='2010-05-13 00:00:00',
@p6=1001
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对不起,我是个白痴。我想通了。 Zip 的长度应该大于 2。
Sorry, I'm an idiot. I figured it out. Zip should probably have a larger length than 2.