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我有以下几点:实体框架TPH创建多个ID列
class Employee {
[Key]
public int EmployeeID {get;set;}
public List<TimeSensitiveData> JobTitle {get;set;}
public List<TimeSensitiveData> Department {get;set;}
public List<TimeSensitiveData> OfficeLocation {get;set;}
}
abstract class TimeSensitiveData {
[Key]
public int TimeSensitiveDataID {get;set;}
public string Value1 {get;set;}
public DateTime Date {get;set;}
}
class JobTitle : TimeSensitiveData {}
class Department : TimeSensitiveData {}
class OfficeLocation : TimeSensitiveData {}
种方法看起来是这样的:
seed() {
List<TimeSeriesData> oflc = new List<TimeSeriesData>();
TimeSeriesData oflc2 = new OfficeLocation();
oflc2.Value1 = "New York";
oflc.Add(oflc2);
List<TimeSeriesData> dpt = new List<TimeSeriesData>();
TimeSeriesData dpt2 = new Department();
dpt2.Value1 = "New York";
dpt.Add(dpt2);
List<TimeSeriesData> jt = new List<TimeSeriesData>();
TimeSeriesData jt2 = new JobTitle();
jt2.Value1 = "New York";
jt.Add(jt2);
var Employees = new List<Employee> {
new Employee{JobTitle=jt,Department=dpt,OfficeLocation=oflc},
}
}
,当我与员工种子数据库它创建一个雇员表和TimeSensitiveData表。在TimeSensitiveData表中有一个Discriminator列(我知道它在做什么),但也有多个Employee_EmployeeID列。实际上,它似乎是为每个延伸TimeSensitiveData的复杂对象创建一个。
所以TimeSensitiveData表看起来有点像这个
TimeSensitiveDataID Value1 Date Discriminator Employee_EmployeeID Employee_EmployeeID1 Employee_EmployeeID2
1 xx date JobTitle NULL NULL(or value) NULL
2
etc..
etc..
我不知道为什么发生这种情况,任何想法?
我应该让员工模型中的列表不是TimeSensitiveData类型列表?他们应该是具体的类型列表吗?
您是否有任何其他流利配置的实体?如果用'[Key]'属性标记'TimeSensitiveDataID'列,它仍然会这样做吗? – DavidG 2014-10-02 13:43:41
@DavidG是啊我其实已经有[Key]属性设置,同样的问题,我会更新问题 – 2014-10-02 13:45:02
@DavidG其实,模型关闭,让我更新 – 2014-10-02 14:00:11