Map custom type in FluetnNhibernate
I have 2 classes.
public class Name
{
public string FirstName { get; set; }
public string LastName { get; set; }
}
class Person
{
public virtual Name Name { get; set; }
public virtual int Age { get; set; }
}
I want to map Person to database like this:
| First Name | LastName | Age |
I tried to create IUserType implementation for Name. But here
public SqlType[] SqlTypes
{
get { return new[] { new SqlType(DbType.String), new SqlType(D开发者_如何学GobType.String) }; }
}
I have an exception
property mapping has wrong number of columns
What you're actually asking for is a Component:
https://github.com/jagregory/fluent-nhibernate/wiki/Fluent-mapping#componentmap
Your class maps would look like:
public class NameComponent : ComponentMap<Name>
{
public NameComponent()
{
Map(x => x.FirstName);
Map(x => x.LastName);
}
}
public class PersonMap : ClassMap<Person>
{
public PersonMap()
{
Id(x => x.Id)...
Map(x => x.Age);
Component(x => x.Name);
}
}
That will map the FirstName/LastName to the same person table as two separate columns. But give you a single Name object on your Person.
If you need to AutoMap the component, take a look at this blog:
http://jagregory.com/writings/fluent-nhibernate-auto-mapping-components/
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