mirror of
https://github.com/JohnEstropia/CoreStore.git
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ManagedObjectListController demo
This commit is contained in:
John Rommel Estropia
@@ -30,25 +30,37 @@ import GCDKit
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private let ManagedObjectListControllerWillChangeListNotification = "ManagedObjectListControllerWillChangeListNotification"
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private let ManagedObjectListControllerDidChangeListNotification = "ManagedObjectListControllerDidChangeListNotification"
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private let ManagedObjectListControllerDidInsertObjectNotification = "ManagedObjectListControllerDidInsertObjectNotification"
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private let ManagedObjectListControllerDidDeleteObjectNotification = "ManagedObjectListControllerDidDeleteObjectNotification"
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private let ManagedObjectListControllerDidUpdateObjectNotification = "ManagedObjectListControllerDidUpdateObjectNotification"
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private let ManagedObjectListControllerDidMoveObjectNotification = "ManagedObjectListControllerDidMoveObjectNotification"
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private let ManagedObjectListControllerDidInsertSectionNotification = "ManagedObjectListControllerDidInsertSectionNotification"
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private let ManagedObjectListControllerDidDeleteSectionNotification = "ManagedObjectListControllerDidDeleteSectionNotification"
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private let UserInfoKeyObject = "UserInfoKeyObject"
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private let UserInfoKeyIndexPath = "UserInfoKeyIndexPath"
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private let UserInfoKeyNewIndexPath = "UserInfoKeyNewIndexPath"
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private let UserInfoKeySectionInfo = "UserInfoKeySectionInfo"
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private let UserInfoKeySectionIndex = "UserInfoKeySectionIndex"
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private struct NotificationKey {
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static var willChangeList: Void?
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static var didChangeList: Void?
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static var didInsertObject: Void?
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static var didDeleteObject: Void?
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static var didUpdateObject: Void?
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static var didMoveObject: Void?
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static var didInsertSection: Void?
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static var didDeleteSection: Void?
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}
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// MARK: - ManagedObjectListController
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public final class ManagedObjectListController<T: NSManagedObject>: FetchedResultsControllerHandler {
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@@ -65,153 +77,289 @@ public final class ManagedObjectListController<T: NSManagedObject>: FetchedResul
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return self.fetchedResultsController.sections?.count ?? 0
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}
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public func numberOfItemsInSection(section: Int) -> Int {
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public func numberOfObjectsInSection(section: Int) -> Int {
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return (self.fetchedResultsController.sections?[section] as? NSFetchedResultsSectionInfo)?.numberOfObjects ?? 0
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}
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public func addObserver<U: ManagedObjectListObserver where U.EntityType == T>(observer: U) {
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public func sectionInfoAtIndex(section: Int) -> NSFetchedResultsSectionInfo {
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return self.fetchedResultsController.sections![section] as! NSFetchedResultsSectionInfo
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}
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public func addObserver<U: ManagedObjectListChangeObserver where U.EntityType == T>(observer: U) {
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HardcoreData.assert(GCDQueue.Main.isCurrentExecutionContext(), "Attempted to add a \(typeName(observer)) outside the main queue.")
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerWillChangeListNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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self.registerChangeNotification(
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&NotificationKey.willChangeList,
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name: ManagedObjectListControllerWillChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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if let strongSelf = self, let strongObserver = observer {
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strongObserver.managedObjectListWillChange(strongSelf)
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}
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observer.managedObjectListWillChange(listController)
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}
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),
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forKey: &NotificationKey.willChangeList,
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inObject: observer
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}
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)
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerDidChangeListNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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self.registerChangeNotification(
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&NotificationKey.didChangeList,
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name: ManagedObjectListControllerDidChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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if let strongSelf = self, let strongObserver = observer {
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strongObserver.managedObjectListDidChange(strongSelf)
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}
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observer.managedObjectListDidChange(listController)
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}
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),
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forKey: &NotificationKey.willChangeList,
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inObject: observer
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)
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerDidInsertObjectNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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if let strongSelf = self,
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let strongObserver = observer,
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let userInfo = note.userInfo,
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let object = userInfo[UserInfoKeyObject] as? T,
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let newIndexPath = userInfo[UserInfoKeyNewIndexPath] as? NSIndexPath {
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strongObserver.managedObjectList(
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strongSelf,
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didInsertObject: object,
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toIndexPath: newIndexPath
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)
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}
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}
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),
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forKey: &NotificationKey.didInsertObject,
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inObject: observer
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)
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerDidDeleteObjectNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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if let strongSelf = self,
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let strongObserver = observer,
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let userInfo = note.userInfo,
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let object = userInfo[UserInfoKeyObject] as? T,
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let indexPath = userInfo[UserInfoKeyIndexPath] as? NSIndexPath {
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strongObserver.managedObjectList(
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strongSelf,
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didDeleteObject: object,
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fromIndexPath: indexPath
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)
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}
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}
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),
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forKey: &NotificationKey.didDeleteObject,
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inObject: observer
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)
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerDidUpdateObjectNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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if let strongSelf = self,
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let strongObserver = observer,
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let userInfo = note.userInfo,
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let object = userInfo[UserInfoKeyObject] as? T,
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let indexPath = userInfo[UserInfoKeyIndexPath] as? NSIndexPath {
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strongObserver.managedObjectList(
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strongSelf,
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didUpdateObject: object,
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atIndexPath: indexPath
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)
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}
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}
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),
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forKey: &NotificationKey.didUpdateObject,
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inObject: observer
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)
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setAssociatedRetainedObject(
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NotificationObserver(
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notificationName: ManagedObjectListControllerDidMoveObjectNotification,
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object: self,
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closure: { [weak self, weak observer] (note) -> Void in
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if let strongSelf = self,
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let strongObserver = observer,
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let userInfo = note.userInfo,
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let object = userInfo[UserInfoKeyObject] as? T,
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let indexPath = userInfo[UserInfoKeyIndexPath] as? NSIndexPath ,
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let newIndexPath = userInfo[UserInfoKeyNewIndexPath] as? NSIndexPath {
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strongObserver.managedObjectList(
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strongSelf,
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didMoveObject: object,
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fromIndexPath: indexPath,
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toIndexPath: newIndexPath
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)
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}
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}
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),
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forKey: &NotificationKey.didMoveObject,
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inObject: observer
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}
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)
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}
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public func removeObserver<U: ManagedObjectListObserver where U.EntityType == T>(observer: U) {
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public func addObserver<U: ManagedObjectListObjectObserver where U.EntityType == T>(observer: U) {
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HardcoreData.assert(GCDQueue.Main.isCurrentExecutionContext(), "Attempted to add a \(typeName(observer)) outside the main queue.")
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self.registerChangeNotification(
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&NotificationKey.willChangeList,
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name: ManagedObjectListControllerWillChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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observer.managedObjectListWillChange(listController)
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}
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}
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)
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self.registerChangeNotification(
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&NotificationKey.didChangeList,
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name: ManagedObjectListControllerDidChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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observer.managedObjectListDidChange(listController)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didInsertObject,
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name: ManagedObjectListControllerDidInsertObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didInsertObject: object,
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toIndexPath: newIndexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didDeleteObject,
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name: ManagedObjectListControllerDidDeleteObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didDeleteObject: object,
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fromIndexPath: indexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didUpdateObject,
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name: ManagedObjectListControllerDidUpdateObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didUpdateObject: object,
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atIndexPath: indexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didMoveObject,
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name: ManagedObjectListControllerDidMoveObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didMoveObject: object,
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fromIndexPath: indexPath!,
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toIndexPath: newIndexPath!
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)
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}
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}
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)
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}
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public func addObserver<U: ManagedObjectListSectionObserver where U.EntityType == T>(observer: U) {
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HardcoreData.assert(GCDQueue.Main.isCurrentExecutionContext(), "Attempted to add a \(typeName(observer)) outside the main queue.")
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self.registerChangeNotification(
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&NotificationKey.willChangeList,
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name: ManagedObjectListControllerWillChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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observer.managedObjectListWillChange(listController)
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}
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}
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)
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self.registerChangeNotification(
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&NotificationKey.didChangeList,
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name: ManagedObjectListControllerDidChangeListNotification,
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toObserver: observer,
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callback: { [weak observer] (listController) -> Void in
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if let observer = observer {
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observer.managedObjectListDidChange(listController)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didInsertObject,
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name: ManagedObjectListControllerDidInsertObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didInsertObject: object,
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toIndexPath: newIndexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didDeleteObject,
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name: ManagedObjectListControllerDidDeleteObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didDeleteObject: object,
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fromIndexPath: indexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didUpdateObject,
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name: ManagedObjectListControllerDidUpdateObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didUpdateObject: object,
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atIndexPath: indexPath!
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)
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}
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}
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)
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self.registerObjectNotification(
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&NotificationKey.didMoveObject,
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name: ManagedObjectListControllerDidMoveObjectNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, object, indexPath, newIndexPath) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didMoveObject: object,
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fromIndexPath: indexPath!,
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toIndexPath: newIndexPath!
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)
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}
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}
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)
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self.registerSectionNotification(
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&NotificationKey.didInsertSection,
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name: ManagedObjectListControllerDidInsertSectionNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, sectionInfo, sectionIndex) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didInsertSection: sectionInfo,
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toSectionIndex: sectionIndex
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)
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}
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}
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)
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self.registerSectionNotification(
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&NotificationKey.didDeleteSection,
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name: ManagedObjectListControllerDidDeleteSectionNotification,
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toObserver: observer,
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callback: { [weak observer] (listController, sectionInfo, sectionIndex) -> Void in
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if let observer = observer {
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observer.managedObjectList(
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listController,
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didDeleteSection: sectionInfo,
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fromSectionIndex: sectionIndex
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)
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}
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}
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)
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}
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public func removeObserver<U: ManagedObjectListChangeObserver where U.EntityType == T>(observer: U) {
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HardcoreData.assert(GCDQueue.Main.isCurrentExecutionContext(), "Attempted to remove a \(typeName(observer)) outside the main queue.")
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.willChangeList, inObject: observer)
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.didChangeList, inObject: observer)
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.didInsertObject, inObject: observer)
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.didDeleteObject, inObject: observer)
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.didUpdateObject, inObject: observer)
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setAssociatedRetainedObject(nil as AnyObject?, forKey: &NotificationKey.didMoveObject, inObject: observer)
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let nilValue: AnyObject? = nil
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.willChangeList, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didChangeList, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didInsertObject, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didDeleteObject, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didUpdateObject, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didMoveObject, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didInsertSection, inObject: observer)
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setAssociatedRetainedObject(nilValue, forKey: &NotificationKey.didDeleteSection, inObject: observer)
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}
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|
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// MARK: FetchedResultsControllerHandler
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private func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
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@@ -263,6 +411,31 @@ public final class ManagedObjectListController<T: NSManagedObject>: FetchedResul
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||||
|
||||
private func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType) {
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||||
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switch type {
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||||
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case .Insert:
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NSNotificationCenter.defaultCenter().postNotificationName(
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ManagedObjectListControllerDidInsertSectionNotification,
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object: self,
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||||
userInfo: [
|
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UserInfoKeySectionInfo: sectionInfo,
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||||
UserInfoKeySectionIndex: NSNumber(integer: sectionIndex)
|
||||
]
|
||||
)
|
||||
|
||||
case .Delete:
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||||
NSNotificationCenter.defaultCenter().postNotificationName(
|
||||
ManagedObjectListControllerDidDeleteSectionNotification,
|
||||
object: self,
|
||||
userInfo: [
|
||||
UserInfoKeySectionInfo: sectionInfo,
|
||||
UserInfoKeySectionIndex: NSNumber(integer: sectionIndex)
|
||||
]
|
||||
)
|
||||
|
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default:
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||||
break
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||||
}
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||||
}
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||||
|
||||
private func controllerWillChangeContent(controller: NSFetchedResultsController) {
|
||||
@@ -336,6 +509,77 @@ public final class ManagedObjectListController<T: NSManagedObject>: FetchedResul
|
||||
private let fetchedResultsController: NSFetchedResultsController
|
||||
private let fetchedResultsControllerDelegate: FetchedResultsControllerDelegate
|
||||
private weak var parentStack: DataStack?
|
||||
|
||||
private func registerChangeNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (listController: ManagedObjectListController<T>) -> Void) {
|
||||
|
||||
setAssociatedRetainedObject(
|
||||
NotificationObserver(
|
||||
notificationName: name,
|
||||
object: self,
|
||||
closure: { [weak self] (note) -> Void in
|
||||
|
||||
if let strongSelf = self {
|
||||
|
||||
callback(listController: strongSelf)
|
||||
}
|
||||
}
|
||||
),
|
||||
forKey: notificationKey,
|
||||
inObject: observer
|
||||
)
|
||||
}
|
||||
|
||||
private func registerObjectNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (listController: ManagedObjectListController<T>, object: T, indexPath: NSIndexPath?, newIndexPath: NSIndexPath?) -> Void) {
|
||||
|
||||
setAssociatedRetainedObject(
|
||||
NotificationObserver(
|
||||
notificationName: name,
|
||||
object: self,
|
||||
closure: { [weak self] (note) -> Void in
|
||||
|
||||
if let strongSelf = self,
|
||||
let userInfo = note.userInfo,
|
||||
let object = userInfo[UserInfoKeyObject] as? T {
|
||||
|
||||
callback(
|
||||
listController: strongSelf,
|
||||
object: object,
|
||||
indexPath: userInfo[UserInfoKeyIndexPath] as? NSIndexPath,
|
||||
newIndexPath: userInfo[UserInfoKeyNewIndexPath] as? NSIndexPath
|
||||
)
|
||||
}
|
||||
}
|
||||
),
|
||||
forKey: notificationKey,
|
||||
inObject: observer
|
||||
)
|
||||
}
|
||||
|
||||
private func registerSectionNotification(notificationKey: UnsafePointer<Void>, name: String, toObserver observer: AnyObject, callback: (listController: ManagedObjectListController<T>, sectionInfo: NSFetchedResultsSectionInfo, sectionIndex: Int) -> Void) {
|
||||
|
||||
setAssociatedRetainedObject(
|
||||
NotificationObserver(
|
||||
notificationName: name,
|
||||
object: self,
|
||||
closure: { [weak self] (note) -> Void in
|
||||
|
||||
if let strongSelf = self,
|
||||
let userInfo = note.userInfo,
|
||||
let sectionInfo = userInfo[UserInfoKeySectionInfo] as? NSFetchedResultsSectionInfo,
|
||||
let sectionIndex = (userInfo[UserInfoKeySectionIndex] as? NSNumber)?.integerValue {
|
||||
|
||||
callback(
|
||||
listController: strongSelf,
|
||||
sectionInfo: sectionInfo,
|
||||
sectionIndex: sectionIndex
|
||||
)
|
||||
}
|
||||
}
|
||||
),
|
||||
forKey: notificationKey,
|
||||
inObject: observer
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -361,16 +605,6 @@ private final class FetchedResultsControllerDelegate: NSFetchedResultsController
|
||||
|
||||
// MARK: NSFetchedResultsControllerDelegate
|
||||
|
||||
@objc func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
|
||||
|
||||
self.handler?.controller(controller, didChangeObject: anObject, atIndexPath: indexPath, forChangeType: type, newIndexPath: newIndexPath)
|
||||
}
|
||||
|
||||
@objc func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType) {
|
||||
|
||||
self.handler?.controller(controller, didChangeSection: sectionInfo, atIndex: sectionIndex, forChangeType: type)
|
||||
}
|
||||
|
||||
@objc func controllerWillChangeContent(controller: NSFetchedResultsController) {
|
||||
|
||||
self.handler?.controllerWillChangeContent(controller)
|
||||
@@ -381,6 +615,16 @@ private final class FetchedResultsControllerDelegate: NSFetchedResultsController
|
||||
self.handler?.controllerDidChangeContent(controller)
|
||||
}
|
||||
|
||||
@objc func controller(controller: NSFetchedResultsController, didChangeObject anObject: AnyObject, atIndexPath indexPath: NSIndexPath?, forChangeType type: NSFetchedResultsChangeType, newIndexPath: NSIndexPath?) {
|
||||
|
||||
self.handler?.controller(controller, didChangeObject: anObject, atIndexPath: indexPath, forChangeType: type, newIndexPath: newIndexPath)
|
||||
}
|
||||
|
||||
@objc func controller(controller: NSFetchedResultsController, didChangeSection sectionInfo: NSFetchedResultsSectionInfo, atIndex sectionIndex: Int, forChangeType type: NSFetchedResultsChangeType) {
|
||||
|
||||
self.handler?.controller(controller, didChangeSection: sectionInfo, atIndex: sectionIndex, forChangeType: type)
|
||||
}
|
||||
|
||||
@objc func controller(controller: NSFetchedResultsController, sectionIndexTitleForSectionName sectionName: String?) -> String? {
|
||||
|
||||
return self.handler?.controller(controller, sectionIndexTitleForSectionName: sectionName)
|
||||
|
||||
Reference in New Issue
Block a user