Question

我在地图上使用流体核,具体如下:

public class ContentTagMap: ClassMap<Employee>
{
    public EmployeeMap()
    {
        Id(t => t.Id);
        Map(t => t.Name);
        HasManyToMany(t => t.Company);
    }
}

public class CompanyMap: ClassMap<Company>
{
    public HelpMap()
    {
        Id(h => h.Id);
        Map(h => h.CompanyName).Length(6000);
        Map(h => h.address).Length(6000);
        HasManyToMany(h => h.Employee);
    }
}

这些绘图产品 Employee Table,Company table and Employee ToCompany

www.un.org/spanish/ecosoc Employee Table

Id    Name
1     John
2     MAX

Company Table

Id    CompanyName   address
1      HTC           ABC
2      HTC2          India

<>Employee ToCompany>>

Employee_Id     Company_Id
1               1
2               1

我怎么能用Id 1删除该雇员?

Answer 1

除非我误解,否则你应问:

How can i delete the content of the table using NHibernate?

液化NHibernate只是帮助测绘贵实体的工具。 <>NHibernate 是你用来生成、阅读、更新和删除数据。无论如何:

9.5. 删除持久性物体

ISession.Delete() will remove an object s state from the database. Of course, your application might still hold a reference to it. So it s best to think of Delete() as making a persistent instance transient.

http://www.nhforge.org/doc/nh/en/index.html# editedingdata-deleting”rel=“nofollow noreferer”>NHibernate Documentation

You probably want to also define a Cascading style on your many to many relationship (HasManyToMany) in your mapping.

If you use Cascade.SaveUpdate in your many to many whenever you delete an entity on one side of the relationship it will delete that entity and any relationships. If you remove the association (ex. if you removed an Employee from a Company) it will only delete the relationship (EmployeeToCompany). This is what I ve typically found to work in the case of many to many relationships.

看看这一条,需要了解更多关于图谱和在流感国家使用许多到许多关系的细节。

how to keep many to many relationships in sync with nhibernate?

How can i delete the content of the table using NHibernate?

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