C# Fluent NHibernate自动映射基类重写
我有下面的基类C# Fluent NHibernate自动映射基类重写,c#,.net,nhibernate,fluent-nhibernate,automapping,C#,.net,Nhibernate,Fluent Nhibernate,Automapping,我有下面的基类 public abstract class BaseEntity { public virtual long Id { get; set; } public virtual DateTime CreateDate { get; set; } public virtual DateTime? UpdateDate { get; set; } public virtual bool IsDeleted { get; set; } public
public abstract class BaseEntity
{
public virtual long Id { get; set; }
public virtual DateTime CreateDate { get; set; }
public virtual DateTime? UpdateDate { get; set; }
public virtual bool IsDeleted { get; set; }
public virtual string CreatedBy { get; set; }
}
它是所有实体的基类
比如说,
public class Task : BaseEntity
{
public virtual string Name {get;set;}
}
我有一个初始值设定项
public class Initializer
{
public static AutoPersistenceModel MapEntities()
{
var p = AutoMap
.AssemblyOf<User>(new MyDefaultAutomappingConfiguration())
.IgnoreBase<BaseEntity>()
.UseOverridesFromAssemblyOf<Initializer>()
.Override<BaseEntity>(map =>
{
map.Map(b => b.CreateDate).Not.Nullable().Not.Update();
map.Map(b => b.CreatedBy).Not.Nullable().Length(100);
map.Map(b => b.ModifiedBy).Length(100);
map.Map(b => b.DeletedBy).Length(100);
map.Map(b => b.IsDeleted).Not.Nullable().Default("0");
});
return p;
}
}
公共类初始值设定项
{
公共静态AutoPersistenceModel MapEntities()
{
var p=自动映射
.AssemblyOf(新的MyDefaultAutomappingConfiguration())
.IgnoreBase()
.UseOverridesFromAssemblyOf()的
.Override(映射=>
{
map.map(b=>b.CreateDate).Not.Nullable().Not.Update();
map.map(b=>b.CreatedBy).Not.Nullable().Length(100);
map.map(b=>b.ModifiedBy).Length(100);
map.map(b=>b.DeletedBy).Length(100);
map.map(b=>b.IsDeleted).Not.Nullable().Default(“0”);
});
返回p;
}
}
当然,在数据库中,CreateDate是datetime,null,CreatedBy是nvarchar(255)
如何配置此自动映射程序以获取从基类到所有子类的映射?您不能覆盖基类的映射,因为该映射实际上从未创建过。如果要继续使用自动映射,可以创建约定
public class BaseEntityPropertiesConvention : IPropertyConvention
{
public void Apply(IPropertyInstance instance)
{
if (instance.EntityType.IsSubclassOf(typeof(BaseEntity)))
{
switch instance.Name
{
case "CreatedDate":
instance.Not.Nullable().Not.Update();
break;
case "CreatedBy":
instance.Not.Nullable().Length(100);
break;
//etc...
}
}
}
}