这不是一个完整的解决方案，但它会让您知道从哪里开始.

This is not a complete solution, but it will give you an idea of where to start.

• 在mainsite 中创建一个UserProfile 模型.这将保存两种类型用户的任何共同属性.使用 OneToOne(...) 字段将其与 User 模型相关联.
• 在每个应用程序中再创建两个模型(学生/企业)，Business 和 Student，它们具有 OneToOne 关系，每个模型都与 UserProfile(或从 UserProfile 继承).这将保存特定于该类型用户的属性.文档:多表继承/一对一关系
• 您可以在UserProfile中添加一个字段来区分它是企业还是学生的个人资料.

• Create a UserProfile model in mainsite. This will hold any common attributes for both types of users. Relate it to the User model with a OneToOne(...) field.
• Create two more models in each app, (student/business), Business and Student, which have OneToOne relationships each with UserProfile (or inherit from UserProfile). This will hold attributes specific to that type of users. Docs: Multitable inheritance / OneToOne Relationships
• You may add a field in UserProfile to distinguish whether it is a business or student's profile.

然后，对于内容管理:

• 定义 save() 函数以自动检查冲突(例如，Business 和 Student 都有一个条目与 UserProfile，或没有条目).
• 在必要时定义 __unicode__() 表示.

• Define the save() functions to automatically check for conflicts (e.g. There is an entry for both Business and Student associated with a UserProfile, or no entries).
• Define the __unicode__() representations where necessary.