我想为 NIBerate 配置一个约定,以允许级联保存或更新和合并,但不允许删除。我找不到如何执行此操作,因为 Cascade.SaveOrUpdate() 或 Cascade.Merge() 返回无效。并调用一种方法取消了先例。
这是我的试验:
1)级联将用于 SaveUpdate :
public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
{
public void Apply(IOneToOneInstance instance)
{
instance.Cascade.Merge();
instance.Cascade.SaveUpdate();
}
public void Apply(IOneToManyCollectionInstance instance)
{
instance.Cascade.Merge();
instance.Cascade.SaveUpdate();
}
public void Apply(IManyToOneInstance instance)
{
instance.Cascade.Merge();
instance.Cascade.SaveUpdate();
}
}
2)级联将用于合并:
public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
{
public void Apply(IOneToOneInstance instance)
{
instance.Cascade.SaveUpdate();
instance.Cascade.Merge();
}
public void Apply(IOneToManyCollectionInstance instance)
{
instance.Cascade.SaveUpdate();
instance.Cascade.Merge();
}
public void Apply(IManyToOneInstance instance)
{
instance.Cascade.SaveUpdate();
instance.Cascade.Merge();
}
}
3) 级联将被停用:
public class CascadeAllConvention : IHasOneConvention, IHasManyConvention, IReferenceConvention
{
public void Apply(IOneToOneInstance instance)
{
instance.Cascade.All();
instance.Cascade.Not.Delete();
}
public void Apply(IOneToManyCollectionInstance instance)
{
instance.Cascade.All();
instance.Cascade.Not.Delete();
}
public void Apply(IManyToOneInstance instance)
{
instance.Cascade.All();
instance.Cascade.Not.Delete();
}
}