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Code Issues 95 Packages Projects Releases 10 Wiki Activity

Workaround CoreData's bug when using NSFetchRequest's affectedStores property

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This commit is contained in:
John Rommel Estropia
2016-04-01 01:22:16 +09:00
parent 633ab0a249
commit 0b24072259
4 changed files with 26 additions and 10 deletions
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CoreStore/Internal/CoreStoreFetchedResultsController.swift
+16
View File
@@ -104,3 +104,19 @@ internal final class CoreStoreFetchedResultsController<T: NSManagedObject>: NSFe
private let reapplyAffectedStores: (fetchRequest: NSFetchRequest, context: NSManagedObjectContext) -> Bool private let reapplyAffectedStores: (fetchRequest: NSFetchRequest, context: NSManagedObjectContext) -> Bool
} }
// MARK: - CoreStoreFetchRequest
// Bugfix for NSFetchRequest messing up memory management for `affectedStores`
// http://stackoverflow.com/questions/14396375/nsfetchedresultscontroller-crashes-in-ios-6-if-affectedstores-is-specified
internal final class CoreStoreFetchRequest: NSFetchRequest {
override var affectedStores: [NSPersistentStore]? {
get { return self.safeAffectedStores }
set { self.safeAffectedStores = newValue }
}
private var safeAffectedStores: [NSPersistentStore]?
}
CoreStore/Internal/NSManagedObjectContext+Querying.swift
+8 -8
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@@ -76,7 +76,7 @@ internal extension NSManagedObjectContext {
internal func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> T? { internal func fetchOne<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> T? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 1 fetchRequest.fetchLimit = 1
@@ -119,7 +119,7 @@ internal extension NSManagedObjectContext {
internal func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [T]? { internal func fetchAll<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [T]? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
@@ -162,7 +162,7 @@ internal extension NSManagedObjectContext {
internal func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> Int? { internal func fetchCount<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> Int? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
for clause in fetchClauses { for clause in fetchClauses {
@@ -195,7 +195,7 @@ internal extension NSManagedObjectContext {
internal func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> NSManagedObjectID? { internal func fetchObjectID<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> NSManagedObjectID? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 1 fetchRequest.fetchLimit = 1
@@ -238,7 +238,7 @@ internal extension NSManagedObjectContext {
internal func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [NSManagedObjectID]? { internal func fetchObjectIDs<T: NSManagedObject>(from: From<T>, _ fetchClauses: [FetchClause]) -> [NSManagedObjectID]? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
@@ -281,7 +281,7 @@ internal extension NSManagedObjectContext {
internal func deleteAll<T: NSManagedObject>(from: From<T>, _ deleteClauses: [DeleteClause]) -> Int? { internal func deleteAll<T: NSManagedObject>(from: From<T>, _ deleteClauses: [DeleteClause]) -> Int? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
@@ -334,7 +334,7 @@ internal extension NSManagedObjectContext {
internal func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: [QueryClause]) -> U? { internal func queryValue<T: NSManagedObject, U: SelectValueResultType>(from: From<T>, _ selectClause: Select<U>, _ queryClauses: [QueryClause]) -> U? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
@@ -383,7 +383,7 @@ internal extension NSManagedObjectContext {
internal func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: [QueryClause]) -> [[NSString: AnyObject]]? { internal func queryAttributes<T: NSManagedObject>(from: From<T>, _ selectClause: Select<NSDictionary>, _ queryClauses: [QueryClause]) -> [[NSString: AnyObject]]? {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
from.applyToFetchRequest(fetchRequest, context: self) from.applyToFetchRequest(fetchRequest, context: self)
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
CoreStore/Observing/ListMonitor.swift
+1 -1
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@@ -991,7 +991,7 @@ public final class ListMonitor<T: NSManagedObject> {
private init(context: NSManagedObjectContext, transactionQueue: GCDQueue, from: From<T>, sectionBy: SectionBy?, fetchClauses: [FetchClause], createAsynchronously: ((ListMonitor<T>) -> Void)?) { private init(context: NSManagedObjectContext, transactionQueue: GCDQueue, from: From<T>, sectionBy: SectionBy?, fetchClauses: [FetchClause], createAsynchronously: ((ListMonitor<T>) -> Void)?) {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
fetchRequest.resultType = .ManagedObjectResultType fetchRequest.resultType = .ManagedObjectResultType
fetchRequest.fetchBatchSize = 20 fetchRequest.fetchBatchSize = 20
CoreStore/Observing/ObjectMonitor.swift
+1 -1
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@@ -175,7 +175,7 @@ public final class ObjectMonitor<T: NSManagedObject> {
private init(context: NSManagedObjectContext, object: T) { private init(context: NSManagedObjectContext, object: T) {
let fetchRequest = NSFetchRequest() let fetchRequest = CoreStoreFetchRequest()
fetchRequest.entity = object.entity fetchRequest.entity = object.entity
fetchRequest.fetchLimit = 0 fetchRequest.fetchLimit = 0
fetchRequest.resultType = .ManagedObjectResultType fetchRequest.resultType = .ManagedObjectResultType