26 lines
1006 B
Swift
26 lines
1006 B
Swift
import Foundation
|
|
|
|
class RemoteNotificationsRefreshOperation: RemoteNotificationsPagingOperation {
|
|
|
|
override func shouldContinueToPage(lastNotification: RemoteNotificationsAPIController.NotificationsResult.Notification) -> Bool {
|
|
|
|
let backgroundContext = self.modelController.newBackgroundContext()
|
|
var shouldContinueToPage = true
|
|
backgroundContext.performAndWait {
|
|
|
|
// Is last (i.e. most recent) notification already in the database? If so, don't continue to page.
|
|
let fetchRequest = RemoteNotification.fetchRequest()
|
|
fetchRequest.fetchLimit = 1
|
|
let predicate = NSPredicate(format: "key == %@", lastNotification.key)
|
|
fetchRequest.predicate = predicate
|
|
|
|
let result = try? backgroundContext.fetch(fetchRequest)
|
|
if result?.first != nil {
|
|
shouldContinueToPage = false
|
|
}
|
|
}
|
|
|
|
return shouldContinueToPage
|
|
}
|
|
}
|