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Code Issues 95 Packages Projects Releases 10 Wiki Activity

WIP: ObjectRepresentable

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John Estropia
2019-10-16 08:22:03 +09:00
parent 6b64eb7650
commit 4619fbbec3
4 changed files with 190 additions and 71 deletions
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100
Sources/ObjectMonitor.swift
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@@ -122,6 +122,44 @@ public final class ObjectMonitor<D: DynamicObject>: ObjectRepresentation, Equata
// MARK: ObjectRepresentation
public func objectID() -> D.ObjectID {
return self.id
}
public func asLiveObject(in dataStack: DataStack) -> LiveObject<D>? {
let context = dataStack.unsafeContext()
return .init(objectID: self.id, context: context)
}
public func asEditable(in transaction: BaseDataTransaction) -> D? {
return self.context.fetchExisting(self.id)
}
public func asSnapshot(in dataStack: DataStack) -> ObjectSnapshot<D>? {
let context = dataStack.unsafeContext()
return .init(id: self.id, context: context)
}
public func asSnapshot(in transaction: BaseDataTransaction) -> ObjectSnapshot<D>? {
let context = transaction.unsafeContext()
return .init(id: self.id, context: context)
}
public func asObjectMonitor(in dataStack: DataStack) -> ObjectMonitor<D>? {
let context = dataStack.unsafeContext()
if self.context == context {
return self
}
return .init(objectID: self.id, context: dataStack.unsafeContext())
}
public typealias ObjectType = D
public static func cs_fromRaw(object: NSManagedObject) -> Self {
@@ -181,14 +219,34 @@ public final class ObjectMonitor<D: DynamicObject>: ObjectRepresentation, Equata
// MARK: Internal
internal convenience init<O: ObjectRepresentation>(dataStack: DataStack, object: O) where O.ObjectType == ObjectType {
internal init(objectID: ObjectType.ObjectID, context: NSManagedObjectContext) {
self.init(context: dataStack.mainContext, objectID: object.cs_id())
}
internal convenience init<O: ObjectRepresentation>(unsafeTransaction: UnsafeDataTransaction, object: O) where O.ObjectType == ObjectType {
let fetchRequest = Internals.CoreStoreFetchRequest<NSManagedObject>()
fetchRequest.entity = objectID.entity
fetchRequest.fetchLimit = 0
fetchRequest.resultType = .managedObjectResultType
fetchRequest.sortDescriptors = []
fetchRequest.includesPendingChanges = false
fetchRequest.shouldRefreshRefetchedObjects = true
self.init(context: unsafeTransaction.context, objectID: object.cs_id())
let fetchedResultsController = Internals.CoreStoreFetchedResultsController(
context: context,
fetchRequest: fetchRequest,
from: From<ObjectType>([objectID.persistentStore?.configurationName]),
applyFetchClauses: Where<ObjectType>("SELF", isEqualTo: objectID).applyToFetchRequest
)
let fetchedResultsControllerDelegate = Internals.FetchedResultsControllerDelegate()
self.objectID = objectID
self.fetchedResultsController = fetchedResultsController
self.fetchedResultsControllerDelegate = fetchedResultsControllerDelegate
fetchedResultsControllerDelegate.handler = self
fetchedResultsControllerDelegate.fetchedResultsController = fetchedResultsController
try! fetchedResultsController.performFetchFromSpecifiedStores()
self.lastCommittedAttributes = (self.object?.cs_toRaw().committedValues(forKeys: nil) as? [String: NSObject]) ?? [:]
}
internal func registerObserver<U: AnyObject>(_ observer: U, willChangeObject: @escaping (_ observer: U, _ monitor: ObjectMonitor<ObjectType>, _ object: ObjectType) -> Void, didDeleteObject: @escaping (_ observer: U, _ monitor: ObjectMonitor<ObjectType>, _ object: ObjectType) -> Void, didUpdateObject: @escaping (_ observer: U, _ monitor: ObjectMonitor<ObjectType>, _ object: ObjectType, _ changedPersistentKeys: Set<String>) -> Void) {
@@ -282,36 +340,6 @@ public final class ObjectMonitor<D: DynamicObject>: ObjectRepresentation, Equata
private var didDeleteObjectKey: Void?
private var didUpdateObjectKey: Void?
private init(context: NSManagedObjectContext, objectID: ObjectType.ObjectID) {
let fetchRequest = Internals.CoreStoreFetchRequest<NSManagedObject>()
fetchRequest.entity = objectID.entity
fetchRequest.fetchLimit = 0
fetchRequest.resultType = .managedObjectResultType
fetchRequest.sortDescriptors = []
fetchRequest.includesPendingChanges = false
fetchRequest.shouldRefreshRefetchedObjects = true
let fetchedResultsController = Internals.CoreStoreFetchedResultsController(
context: context,
fetchRequest: fetchRequest,
from: From<ObjectType>([objectID.persistentStore?.configurationName]),
applyFetchClauses: Where<ObjectType>("SELF", isEqualTo: objectID).applyToFetchRequest
)
let fetchedResultsControllerDelegate = Internals.FetchedResultsControllerDelegate()
self.objectID = objectID
self.fetchedResultsController = fetchedResultsController
self.fetchedResultsControllerDelegate = fetchedResultsControllerDelegate
fetchedResultsControllerDelegate.handler = self
fetchedResultsControllerDelegate.fetchedResultsController = fetchedResultsController
try! fetchedResultsController.performFetchFromSpecifiedStores()
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<ObjectType>) -> Void) {
Internals.setAssociatedRetainedObject(