与核心数据的多对多关系：如何填充交叉数据？
我不知道如何使用核心数据来实现以下内容。
员工<<-->>公司
这意味着一名员工可以在不同的公司工作，而一个公司显然可以有很多员工。
但在我的核心数据中，我想存储附加信息，例如“员工 ID”或“资历级别”。这些数据与实体之间的关系相关联。 通常这些数据存储在交集表中，但是核心数据呢？
预先感谢，亚萨
I have no idea how to implement the following using Core Data.
employee <<-->> company
This means that an employee can work in different companies, and one company can obviously have many employees.
But in my core data, I want to store additional information, like "employee id" or "level of seniority". These data are linked to the relationship between the entities.
Normally these data are stored in intersection tables, but what with core data?
Thanks in advance, yassa
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如果没有更多地了解您的模型，很难说，但是拥有
Person、Employee和Company实体是否有意义？Person可以与Employee建立一对多关系，而Employee与Person建立一对一关系。那么
Employee可以与Company建立一对一关系，Company可以与建立一对多关系员工。现在，您可以在
Person中存储与任何特定公司的雇佣无关的个人详细信息，在Employee中保留员工详细信息，例如“ID”或“资历” code> 实体以及Company中的所有公司相关信息。Hard to say without seeing more of your model, but would it make sense to have entities for
Person,EmployeeandCompany?A
Personcould have a to-many relationship withEmployeewhile anEmployeehas a to-one relationship withPerson.Then an
Employeecould have a to-one relationship with aCompany, and aCompanycan have a to-many relationship withEmployee.Now you can store the personal details that aren't related to employment to any specific company in
Person, keep the employee details such as "ID" or "seniority" in theEmployeeentity and all the company related information inCompany.