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我找不到我的代码有什么问题。我试图用Swift使用MagicalRecord。当我做一些简单的createEntity它给了我零:魔法记录 - MR_createEntity返回无
let a = Subject.MR_createEntity() <--- This line is working perfectly
let b = Points.MR_createEntity() <--- This line returns nil
let c = Class.MR_createEntity() <--- This line returns nil
这是我的类实现:
主题:
@objc(Subject)
class Subject: NSManagedObject {
@NSManaged var name: String?
@NSManaged var classes: NSSet?
}
类:
@objc(Class)
class Class: NSManagedObject {
@NSManaged var name: String?
@NSManaged var teacherName: String?
@NSManaged var subject: Subject?
@NSManaged var points: NSSet?
}
点:
@objc(Points)
class Points: NSManagedObject {
@NSManaged var date: NSDate?
@NSManaged var points: NSNumber?
@NSManaged var maxPoints: NSNumber?
@NSManaged var classType: Class?
}