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Code Issues 95 Packages Projects Releases 10 Wiki Activity

NSManagedObject features are now fully supported for CoreStoreObject types. MacOSX 10.12 onwards now support ListMonitors and ObjectMonitors

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This commit is contained in:
John Estropia
2017-04-07 20:14:13 +09:00
parent 4aa1a63f9a
commit c0ae129b22
58 changed files with 1172 additions and 803 deletions
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56
Sources/Observing/ObjectMonitor.swift
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@@ -27,8 +27,6 @@ import Foundation
import CoreData
#if os(iOS) || os(watchOS) || os(tvOS)
// MARK: - ObjectMonitor
/**
@@ -41,14 +39,18 @@ import CoreData
Observers registered via `addObserver(_:)` are not retained. `ObjectMonitor` only keeps a `weak` reference to all observers, thus keeping itself free from retain-cycles.
*/
public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
@available(OSX 10.12, *)
public final class ObjectMonitor<EntityType: DynamicObject>: Equatable {
/**
Returns the `NSManagedObject` instance being observed, or `nil` if the object was already deleted.
*/
public var object: EntityType? {
return self.fetchedResultsController.fetchedObjects?.first as? EntityType
return self.fetchedResultsController
.fetchedObjects?
.first
.flatMap({ EntityType.cs_fromRaw(object: $0) })
}
/**
@@ -56,7 +58,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
*/
public var isObjectDeleted: Bool {
return self.object?.managedObjectContext == nil
return self.object?.cs_toRaw().managedObjectContext == nil
}
/**
@@ -105,22 +107,22 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
// MARK: Equatable
public static func == <T: NSManagedObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<T>) -> Bool {
public static func == <T: DynamicObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<T>) -> Bool {
return lhs === rhs
}
public static func == <T: NSManagedObject, U: NSManagedObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<U>) -> Bool {
public static func == <T: DynamicObject, U: NSManagedObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<U>) -> Bool {
return lhs.fetchedResultsController === rhs.fetchedResultsController
}
public static func ~= <T: NSManagedObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<T>) -> Bool {
public static func ~= <T: DynamicObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<T>) -> Bool {
return lhs === rhs
}
public static func ~= <T: NSManagedObject, U: NSManagedObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<U>) -> Bool {
public static func ~= <T: DynamicObject, U: DynamicObject>(lhs: ObjectMonitor<T>, rhs: ObjectMonitor<U>) -> Bool {
return lhs.fetchedResultsController === rhs.fetchedResultsController
}
@@ -190,7 +192,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
}
let previousCommitedAttributes = self.lastCommittedAttributes
let currentCommitedAttributes = object.committedValues(forKeys: nil) as! [String: NSObject]
let currentCommitedAttributes = object.cs_toRaw().committedValues(forKeys: nil) as! [String: NSObject]
var changedKeys = Set<String>()
for key in currentCommitedAttributes.keys {
@@ -220,16 +222,6 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
cs_setAssociatedRetainedObject(nilValue, forKey: &self.didUpdateObjectKey, inObject: observer)
}
internal func downcast() -> ObjectMonitor<NSManagedObject> {
@inline(__always)
func noWarnUnsafeBitCast<T, U>(_ x: T, to type: U.Type) -> U {
return unsafeBitCast(x, to: type)
}
return noWarnUnsafeBitCast(self, to: ObjectMonitor<NSManagedObject>.self)
}
deinit {
self.fetchedResultsControllerDelegate.fetchedResultsController = nil
@@ -239,7 +231,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
// MARK: Private
private let fetchedResultsController: CoreStoreFetchedResultsController
private let fetchedResultsControllerDelegate: FetchedResultsControllerDelegate<EntityType>
private let fetchedResultsControllerDelegate: FetchedResultsControllerDelegate
private var lastCommittedAttributes = [String: NSObject]()
private var willChangeObjectKey: Void?
@@ -248,22 +240,24 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
private init(context: NSManagedObjectContext, object: EntityType) {
let rawObject = object.cs_toRaw()
let fetchRequest = CoreStoreFetchRequest()
fetchRequest.entity = object.entity
fetchRequest.entity = rawObject.entity
fetchRequest.fetchLimit = 0
fetchRequest.resultType = .managedObjectResultType
fetchRequest.sortDescriptors = []
fetchRequest.includesPendingChanges = false
fetchRequest.shouldRefreshRefetchedObjects = true
let objectID = object.objectID
let objectID = rawObject.objectID
let fetchedResultsController = CoreStoreFetchedResultsController(
context: context,
fetchRequest: fetchRequest.dynamicCast(),
from: nil as From<EntityType>?,
applyFetchClauses: Where("SELF", isEqualTo: objectID).applyToFetchRequest
)
let fetchedResultsControllerDelegate = FetchedResultsControllerDelegate<EntityType>()
let fetchedResultsControllerDelegate = FetchedResultsControllerDelegate()
self.fetchedResultsController = fetchedResultsController
self.fetchedResultsControllerDelegate = fetchedResultsControllerDelegate
@@ -272,7 +266,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
fetchedResultsControllerDelegate.fetchedResultsController = fetchedResultsController
try! fetchedResultsController.performFetchFromSpecifiedStores()
self.lastCommittedAttributes = (self.object?.committedValues(forKeys: nil) as? [String: NSObject]) ?? [:]
self.lastCommittedAttributes = (self.object?.cs_toRaw().committedValues(forKeys: nil) as? [String: NSObject]) ?? [:]
}
private func registerChangeNotification(_ notificationKey: UnsafeRawPointer, name: Notification.Name, toObserver observer: AnyObject, callback: @escaping (_ monitor: ObjectMonitor<EntityType>) -> Void) {
@@ -281,7 +275,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
NotificationObserver(
notificationName: name,
object: self,
closure: { [weak self] (note) -> Void in
closure: { [weak self] _ in
guard let `self` = self else {
@@ -301,15 +295,15 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
NotificationObserver(
notificationName: name,
object: self,
closure: { [weak self] (note) -> Void in
closure: { [weak self] (note) in
guard let `self` = self,
let userInfo = note.userInfo,
let object = userInfo[String(describing: NSManagedObject.self)] as? EntityType else {
let object = userInfo[String(describing: NSManagedObject.self)] as! NSManagedObject? else {
return
}
callback(self, object)
callback(self, EntityType.cs_fromRaw(object: object))
}
),
forKey: notificationKey,
@@ -321,6 +315,7 @@ public final class ObjectMonitor<EntityType: NSManagedObject>: Equatable {
// MARK: - ObjectMonitor: FetchedResultsControllerHandler
@available(OSX 10.12, *)
extension ObjectMonitor: FetchedResultsControllerHandler {
// MARK: FetchedResultsControllerHandler
@@ -370,11 +365,10 @@ extension ObjectMonitor: FetchedResultsControllerHandler {
// MARK: - Notification.Name
@available(OSX 10.12, *)
fileprivate extension Notification.Name {
fileprivate static let objectMonitorWillChangeObject = Notification.Name(rawValue: "objectMonitorWillChangeObject")
fileprivate static let objectMonitorDidDeleteObject = Notification.Name(rawValue: "objectMonitorDidDeleteObject")
fileprivate static let objectMonitorDidUpdateObject = Notification.Name(rawValue: "objectMonitorDidUpdateObject")
}
#endif