I have a User model class (generated by XCode with Swift):
@objc(User)
class User: NSManagedObject { }
And it's extension:
extension User {
@NSManaged var id: NSNumber?
@NSManaged var firstName: String?
@NSManaged var lastName: String?
@NSManaged var birthYear: NSNumber?
}
I can save/fetch data from CoreData. But can I use this class for object management without CoreData things ? Or i need to create other class/struct for this?
For example, create User object (without ObjectContext), set his attributes and send it as property in some func? Maybe i can create some struct in class User (like struct {var firstNameData, secondNameData,...}
) and use it in code?
I updated class:
struct User {
var id: Int!
var firstName: String!
var lastName: String!
var birthYear: UInt?
}
@objc(UserManagedObject)
class UserManagedObject: NSManagedObject {
func toStruct() -> User {
var userData = User()
userData.id = Int(self.id)
userData.firstName = self.firstName
userData.lastName = self.lastName
if let by = self.birthYear {
userData.birthYear = UInt(by)
}
return userData
}
}
Now for object management i use struct User and UserManagedObject for CoreData in/out
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.