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568 lines
26 KiB
Objective-C
568 lines
26 KiB
Objective-C
//
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// RKManagedObjectRequestOperation.m
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// RestKit
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//
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// Created by Blake Watters on 8/9/12.
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// Copyright (c) 2012 RestKit. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#import "RKManagedObjectRequestOperation.h"
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#import "RKLog.h"
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#import "RKHTTPUtilities.h"
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#import "RKResponseMapperOperation.h"
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#import "RKRequestOperationSubclass.h"
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#import "NSManagedObjectContext+RKAdditions.h"
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#import "NSManagedObject+RKAdditions.h"
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#import "RKObjectUtilities.h"
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// Graph visitor
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#import "RKResponseDescriptor.h"
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#import "RKEntityMapping.h"
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#import "RKDynamicMapping.h"
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#import "RKRelationshipMapping.h"
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// Set Logging Component
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#undef RKLogComponent
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#define RKLogComponent RKlcl_cRestKitCoreData
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@interface RKEntityMappingEvent : NSObject
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@property (nonatomic, copy) id rootKey;
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@property (nonatomic, copy) NSString *keyPath;
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@property (nonatomic, strong) RKEntityMapping *entityMapping;
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+ (instancetype)eventWithRootKey:(id)rootKey keyPath:(NSString *)keyPath entityMapping:(RKEntityMapping *)entityMapping;
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@end
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@implementation RKEntityMappingEvent
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+ (instancetype)eventWithRootKey:(id)rootKey keyPath:(NSString *)keyPath entityMapping:(RKEntityMapping *)entityMapping
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{
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RKEntityMappingEvent *event = [RKEntityMappingEvent new];
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event.rootKey = rootKey;
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event.keyPath = keyPath;
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event.entityMapping = entityMapping;
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return event;
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}
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- (NSString *)description
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{
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return [NSString stringWithFormat:@"<%@: %p rootKey=%@ keyPath=%@ entityMapping=%@>",
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[self class], self, self.rootKey, self.keyPath, self.entityMapping];
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}
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@end
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static NSString *RKKeyPathByDeletingLastComponent(NSString *keyPath)
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{
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NSArray *keyPathComponents = [keyPath componentsSeparatedByString:@"."];
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return ([keyPathComponents count] > 1) ? [[keyPathComponents subarrayWithRange:NSMakeRange(0, [keyPathComponents count] - 1)] componentsJoinedByString:@"."] : nil;
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}
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NSArray *RKArrayOfFetchRequestFromBlocksWithURL(NSArray *fetchRequestBlocks, NSURL *URL)
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{
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NSMutableArray *fetchRequests = [NSMutableArray array];
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NSFetchRequest *fetchRequest = nil;
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for (RKFetchRequestBlock block in [fetchRequestBlocks reverseObjectEnumerator]) {
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fetchRequest = block(URL);
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if (fetchRequest) [fetchRequests addObject:fetchRequest];
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}
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return fetchRequests;
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}
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static NSSet *RKFlattenCollectionToSet(id collection)
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{
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NSMutableSet *mutableSet = [NSMutableSet set];
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if ([collection conformsToProtocol:@protocol(NSFastEnumeration)]) {
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for (id nestedObject in collection) {
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if ([nestedObject conformsToProtocol:@protocol(NSFastEnumeration)]) {
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if ([nestedObject isKindOfClass:[NSArray class]]) {
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[mutableSet unionSet:RKFlattenCollectionToSet([NSSet setWithArray:nestedObject])];
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} else if ([nestedObject isKindOfClass:[NSSet class]]) {
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[mutableSet unionSet:RKFlattenCollectionToSet(nestedObject)];
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} else if ([nestedObject isKindOfClass:[NSOrderedSet class]]) {
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[mutableSet unionSet:RKFlattenCollectionToSet([(NSOrderedSet *)nestedObject set])];
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}
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} else {
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[mutableSet addObject:nestedObject];
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}
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}
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} else if (collection) {
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[mutableSet addObject:collection];
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}
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return mutableSet;
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}
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/**
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Traverses a cyclic key path within the mapping result. Because the relationship is cyclic, we continue collecting managed objects and traversing until the values returned by the key path are a complete subset of all objects already in the set.
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*/
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static void RKAddObjectsInGraphWithCyclicKeyPathToMutableSet(id graph, NSString *cyclicKeyPath, NSMutableSet *mutableSet)
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{
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if ([graph respondsToSelector:@selector(count)] && [graph count] == 0) return;
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NSSet *objectsAtCyclicKeyPath = RKFlattenCollectionToSet([graph valueForKeyPath:cyclicKeyPath]);
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if ([objectsAtCyclicKeyPath count] == 0 || [objectsAtCyclicKeyPath isEqualToSet:[NSSet setWithObject:[NSNull null]]]) return;
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if (! [objectsAtCyclicKeyPath isSubsetOfSet:mutableSet]) {
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[mutableSet unionSet:objectsAtCyclicKeyPath];
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for (id nestedValue in objectsAtCyclicKeyPath) {
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RKAddObjectsInGraphWithCyclicKeyPathToMutableSet(nestedValue, cyclicKeyPath, mutableSet);
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}
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}
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}
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/**
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Returns the set of keys containing the outermost nesting keypath for all children.
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For example, given a set containing: 'this', 'this.that', 'another.one.test', 'another.two.test', 'another.one.test.nested'
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would return: 'this, 'another.one', 'another.two'
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*/
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NSSet *RKSetByRemovingSubkeypathsFromSet(NSSet *setOfKeyPaths);
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NSSet *RKSetByRemovingSubkeypathsFromSet(NSSet *setOfKeyPaths)
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{
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return [setOfKeyPaths objectsPassingTest:^BOOL(NSString *keyPath, BOOL *stop) {
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if ([keyPath isEqual:[NSNull null]]) return YES; // Special case the root key path
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NSArray *keyPathComponents = [keyPath componentsSeparatedByString:@"."];
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NSMutableSet *parentKeyPaths = [NSMutableSet set];
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for (NSUInteger index = 0; index < [keyPathComponents count] - 1; index++) {
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[parentKeyPaths addObject:[[keyPathComponents subarrayWithRange:NSMakeRange(0, index + 1)] componentsJoinedByString:@"."]];
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}
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for (NSString *parentKeyPath in parentKeyPaths) {
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if ([setOfKeyPaths containsObject:parentKeyPath]) return NO;
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}
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return YES;
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}];
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}
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// Precondition: Must be called from within the correct context
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static NSManagedObject *RKRefetchManagedObjectInContext(NSManagedObject *managedObject, NSManagedObjectContext *managedObjectContext)
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{
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NSManagedObjectID *managedObjectID = [managedObject objectID];
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if (! [managedObject managedObjectContext]) return nil; // Object has been deleted
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if ([managedObjectID isTemporaryID]) {
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RKLogWarning(@"Unable to refetch managed object %@: the object has a temporary managed object ID.", managedObject);
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return managedObject;
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}
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NSError *error = nil;
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NSManagedObject *refetchedObject = [managedObjectContext existingObjectWithID:managedObjectID error:&error];
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NSCAssert(refetchedObject, @"Failed to find existing object with ID %@ in context %@: %@", managedObjectID, managedObjectContext, error);
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return refetchedObject;
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}
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static id RKRefetchedValueInManagedObjectContext(id value, NSManagedObjectContext *managedObjectContext)
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{
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if (! value) {
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return value;
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} else if ([value isKindOfClass:[NSArray class]]) {
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BOOL isMutable = [value isKindOfClass:[NSMutableArray class]];
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NSMutableArray *newValue = [[NSMutableArray alloc] initWithCapacity:[value count]];
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for (__strong id object in value) {
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if ([object isKindOfClass:[NSManagedObject class]]) object = RKRefetchManagedObjectInContext(object, managedObjectContext);
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if (object) [newValue addObject:object];
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}
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value = (isMutable) ? newValue : [newValue copy];
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} else if ([value isKindOfClass:[NSSet class]]) {
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BOOL isMutable = [value isKindOfClass:[NSMutableSet class]];
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NSMutableSet *newValue = [[NSMutableSet alloc] initWithCapacity:[value count]];
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for (__strong id object in value) {
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if ([object isKindOfClass:[NSManagedObject class]]) object = RKRefetchManagedObjectInContext(object, managedObjectContext);
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if (object) [newValue addObject:object];
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}
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value = (isMutable) ? newValue : [newValue copy];
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} else if ([value isKindOfClass:[NSOrderedSet class]]) {
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BOOL isMutable = [value isKindOfClass:[NSMutableOrderedSet class]];
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NSMutableOrderedSet *newValue = [NSMutableOrderedSet orderedSet];
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[(NSOrderedSet *)value enumerateObjectsUsingBlock:^(id object, NSUInteger index, BOOL *stop) {
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if ([object isKindOfClass:[NSManagedObject class]]) object = RKRefetchManagedObjectInContext(object, managedObjectContext);
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if (object) [newValue setObject:object atIndex:index];
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}];
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value = (isMutable) ? newValue : [newValue copy];
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} else if ([value isKindOfClass:[NSManagedObject class]]) {
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value = RKRefetchManagedObjectInContext(value, managedObjectContext);
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}
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return value;
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}
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// Finds the key paths for all entity mappings in the graph whose parent objects are not other managed objects
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static NSDictionary *RKDictionaryFromDictionaryWithManagedObjectsInMappingEventsRefetchedInContext(NSDictionary *dictionaryOfManagedObjects, NSArray *events, NSManagedObjectContext *managedObjectContext)
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{
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if (! [dictionaryOfManagedObjects count]) return dictionaryOfManagedObjects;
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NSMutableDictionary *newDictionary = [dictionaryOfManagedObjects mutableCopy];
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[managedObjectContext performBlockAndWait:^{
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NSSet *rootKeys = [NSSet setWithArray:[events valueForKey:@"rootKey"]];
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for (id rootKey in rootKeys) {
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NSArray *eventsForRootKey = [events filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"rootKey = %@", rootKey]];
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NSSet *keyPaths = [NSSet setWithArray:[eventsForRootKey valueForKey:@"keyPath"]];
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// If keyPaths contains null, then the root object is a managed object and we only need to refetch it
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NSSet *nonNestedKeyPaths = ([keyPaths containsObject:[NSNull null]]) ? [NSSet setWithObject:[NSNull null]] : RKSetByRemovingSubkeypathsFromSet(keyPaths);
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NSDictionary *mappingResultsAtRootKey = [newDictionary objectForKey:rootKey];
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for (NSString *keyPath in nonNestedKeyPaths) {
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id value = nil;
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if ([keyPath isEqual:[NSNull null]]) {
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value = RKRefetchedValueInManagedObjectContext(mappingResultsAtRootKey, managedObjectContext);
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if (value) [newDictionary setObject:value forKey:rootKey];
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} else {
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NSMutableArray *keyPathComponents = [[keyPath componentsSeparatedByString:@"."] mutableCopy];
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NSString *destinationKey = [keyPathComponents lastObject];
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[keyPathComponents removeLastObject];
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id sourceObject = [keyPathComponents count] ? [mappingResultsAtRootKey valueForKeyPath:[keyPathComponents componentsJoinedByString:@"."]] : mappingResultsAtRootKey;
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if (RKObjectIsCollection(sourceObject)) {
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// This is a to-many relationship, we want to refetch each item at the keyPath
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for (id nestedObject in sourceObject) {
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// Refetch this object. Set it on the destination.
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NSManagedObject *managedObject = [nestedObject valueForKey:destinationKey];
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[nestedObject setValue:RKRefetchedValueInManagedObjectContext(managedObject, managedObjectContext) forKey:destinationKey];
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}
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} else {
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// This is a singular relationship. We want to refetch the object and set it directly.
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id valueToRefetch = [sourceObject valueForKey:destinationKey];
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[sourceObject setValue:RKRefetchedValueInManagedObjectContext(valueToRefetch, managedObjectContext) forKey:destinationKey];
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}
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}
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}
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}
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}];
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return newDictionary;
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}
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static NSURL *RKRelativeURLFromURLAndResponseDescriptors(NSURL *URL, NSArray *responseDescriptors)
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{
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NSCParameterAssert(URL);
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NSCParameterAssert(responseDescriptors);
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NSArray *baseURLs = [responseDescriptors valueForKeyPath:@"@distinctUnionOfObjects.baseURL"];
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if ([baseURLs count] == 1) {
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NSURL *baseURL = [baseURLs objectAtIndex:0];
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NSString *pathAndQueryString = RKPathAndQueryStringFromURLRelativeToURL(URL, baseURL);
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URL = [NSURL URLWithString:pathAndQueryString relativeToURL:baseURL];
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}
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return URL;
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}
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@interface RKManagedObjectRequestOperation ()
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// Core Data specific
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@property (nonatomic, strong) NSManagedObjectContext *privateContext;
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@property (nonatomic, copy) NSManagedObjectID *targetObjectID;
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@property (nonatomic, strong) RKManagedObjectResponseMapperOperation *responseMapperOperation;
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@property (nonatomic, strong, readwrite) NSError *error;
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@property (nonatomic, strong, readwrite) RKMappingResult *mappingResult;
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@property (nonatomic, copy) id (^willMapDeserializedResponseBlock)(id deserializedResponseBody);
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@property (nonatomic, strong) NSArray *entityMappingEvents;
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@end
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@implementation RKManagedObjectRequestOperation
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@dynamic willMapDeserializedResponseBlock;
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// Designated initializer
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- (id)initWithHTTPRequestOperation:(RKHTTPRequestOperation *)requestOperation responseDescriptors:(NSArray *)responseDescriptors
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{
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self = [super initWithHTTPRequestOperation:requestOperation responseDescriptors:responseDescriptors];
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if (self) {
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self.savesToPersistentStore = YES;
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self.deletesOrphanedObjects = YES;
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}
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return self;
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}
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- (void)setTargetObject:(id)targetObject
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{
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[super setTargetObject:targetObject];
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if ([targetObject isKindOfClass:[NSManagedObject class]]) {
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self.targetObjectID = [targetObject objectID];
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}
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}
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- (void)setManagedObjectContext:(NSManagedObjectContext *)managedObjectContext
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{
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_managedObjectContext = managedObjectContext;
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if (managedObjectContext) {
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// Create a private context
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NSManagedObjectContext *privateContext = [[NSManagedObjectContext alloc] initWithConcurrencyType:NSPrivateQueueConcurrencyType];
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[privateContext setParentContext:managedObjectContext];
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[privateContext setMergePolicy:NSMergeByPropertyStoreTrumpMergePolicy];
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self.privateContext = privateContext;
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} else {
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self.privateContext = nil;
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}
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}
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#pragma mark - RKObjectRequestOperation Overrides
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- (void)cancel
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{
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[super cancel];
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[self.responseMapperOperation cancel];
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}
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- (RKMappingResult *)performMappingOnResponse:(NSError **)error
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{
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if (self.HTTPRequestOperation.wasNotModified) {
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RKLogDebug(@"Managed object mapping requested for cached response: skipping mapping...");
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NSURL *URL = RKRelativeURLFromURLAndResponseDescriptors(self.HTTPRequestOperation.response.URL, self.responseDescriptors);
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NSArray *fetchRequests = RKArrayOfFetchRequestFromBlocksWithURL(self.fetchRequestBlocks, URL);
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NSMutableArray *managedObjects = [NSMutableArray array];
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[self.privateContext performBlockAndWait:^{
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NSError *error = nil;
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for (NSFetchRequest *fetchRequest in fetchRequests) {
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NSArray *fetchedObjects = [self.privateContext executeFetchRequest:fetchRequest error:&error];
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if (fetchedObjects) {
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[managedObjects addObjectsFromArray:fetchedObjects];
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} else {
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RKLogError(@"Failed to execute fetch request %@: %@", fetchRequest, error);
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}
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}
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}];
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return [[RKMappingResult alloc] initWithDictionary:@{ [NSNull null]: managedObjects }];
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}
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self.responseMapperOperation = [[RKManagedObjectResponseMapperOperation alloc] initWithResponse:self.HTTPRequestOperation.response
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data:self.HTTPRequestOperation.responseData
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responseDescriptors:self.responseDescriptors];
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self.responseMapperOperation.mapperDelegate = self;
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self.responseMapperOperation.targetObjectID = self.targetObjectID;
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self.responseMapperOperation.managedObjectContext = self.privateContext;
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self.responseMapperOperation.managedObjectCache = self.managedObjectCache;
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[self.responseMapperOperation setWillMapDeserializedResponseBlock:self.willMapDeserializedResponseBlock];
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[self.responseMapperOperation setQueuePriority:[self queuePriority]];
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[[RKObjectRequestOperation responseMappingQueue] addOperation:self.responseMapperOperation];
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[self.responseMapperOperation waitUntilFinished];
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if ([self isCancelled]) return nil;
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if (self.responseMapperOperation.error) {
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if (error) *error = self.responseMapperOperation.error;
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return nil;
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}
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return self.responseMapperOperation.mappingResult;
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}
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- (BOOL)deleteTargetObjectIfAppropriate:(NSError **)error
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{
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__block BOOL _blockSuccess = YES;
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if (self.targetObjectID
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&& NSLocationInRange(self.HTTPRequestOperation.response.statusCode, RKStatusCodeRangeForClass(RKStatusCodeClassSuccessful))
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&& [[[self.HTTPRequestOperation.request HTTPMethod] uppercaseString] isEqualToString:@"DELETE"]) {
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// 2xx DELETE request, proceed with deletion from the MOC
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__block NSError *_blockError = nil;
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[self.privateContext performBlockAndWait:^{
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NSManagedObject *backgroundThreadObject = [self.privateContext existingObjectWithID:self.targetObjectID error:&_blockError];
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if (backgroundThreadObject) {
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RKLogInfo(@"Deleting local object %@ due to `DELETE` request", backgroundThreadObject);
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[self.privateContext deleteObject:backgroundThreadObject];
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} else {
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RKLogWarning(@"Unable to delete object sent with `DELETE` request: Failed to retrieve object with objectID %@", self.targetObjectID);
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RKLogCoreDataError(_blockError);
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_blockSuccess = NO;
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*error = _blockError;
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}
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}];
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}
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return _blockSuccess;
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}
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- (NSSet *)localObjectsFromFetchRequestsMatchingRequestURL:(NSError **)error
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{
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NSMutableSet *localObjects = [NSMutableSet set];
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__block NSError *_blockError;
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__block NSArray *_blockObjects;
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// Pass the fetch request blocks a relative `NSURL` object if possible
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NSURL *URL = RKRelativeURLFromURLAndResponseDescriptors(self.HTTPRequestOperation.response.URL, self.responseDescriptors);
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for (RKFetchRequestBlock fetchRequestBlock in [self.fetchRequestBlocks reverseObjectEnumerator]) {
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NSFetchRequest *fetchRequest = fetchRequestBlock(URL);
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if (fetchRequest) {
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RKLogDebug(@"Found fetch request matching URL '%@': %@", URL, fetchRequest);
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[self.privateContext performBlockAndWait:^{
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_blockObjects = [self.privateContext executeFetchRequest:fetchRequest error:&_blockError];
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}];
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if (_blockObjects == nil) {
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if (error) *error = _blockError;
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return nil;
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}
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RKLogTrace(@"Fetched local objects matching URL '%@' with fetch request '%@': %@", URL, fetchRequest, _blockObjects);
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[localObjects addObjectsFromArray:_blockObjects];
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} else {
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RKLogDebug(@"Fetch request block %@ returned nil fetch request for URL: '%@'", fetchRequestBlock, URL);
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}
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}
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return localObjects;
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}
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- (BOOL)deleteLocalObjectsMissingFromMappingResult:(NSError **)error
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{
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if (! self.deletesOrphanedObjects) {
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RKLogDebug(@"Skipping deletion of orphaned objects: disabled as deletesOrphanedObjects=NO");
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return YES;
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}
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if (! [[self.HTTPRequestOperation.request.HTTPMethod uppercaseString] isEqualToString:@"GET"]) {
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RKLogDebug(@"Skipping deletion of orphaned objects: only performed for GET requests.");
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return YES;
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}
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if (self.HTTPRequestOperation.wasNotModified) {
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RKLogDebug(@"Skipping deletion of orphaned objects: 304 (Not Modified) status code encountered");
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return YES;
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}
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// Build an aggregate collection of all the managed objects in the mapping result
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NSMutableSet *managedObjectsInMappingResult = [NSMutableSet set];
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NSDictionary *mappingResultDictionary = self.mappingResult.dictionary;
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for (RKEntityMappingEvent *event in self.entityMappingEvents) {
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id objectsAtRoot = [mappingResultDictionary objectForKey:event.rootKey];
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id managedObjects = event.keyPath ? [objectsAtRoot valueForKeyPath:event.keyPath] : objectsAtRoot;
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NSSet *flattenedSet = RKFlattenCollectionToSet(managedObjects);
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[managedObjectsInMappingResult unionSet:flattenedSet];
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}
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NSSet *localObjects = [self localObjectsFromFetchRequestsMatchingRequestURL:error];
|
|
if (! localObjects) return NO;
|
|
RKLogDebug(@"Checking mappings result of %ld objects for %ld potentially orphaned local objects...", (long) [managedObjectsInMappingResult count], (long) [localObjects count]);
|
|
for (id object in localObjects) {
|
|
if (NO == [managedObjectsInMappingResult containsObject:object]) {
|
|
RKLogDebug(@"Deleting orphaned object %@: not found in result set and expected at this URL", object);
|
|
[self.privateContext performBlockAndWait:^{
|
|
[self.privateContext deleteObject:object];
|
|
}];
|
|
}
|
|
}
|
|
|
|
return YES;
|
|
}
|
|
|
|
- (BOOL)saveContext:(NSManagedObjectContext *)context error:(NSError **)error
|
|
{
|
|
__block BOOL success = YES;
|
|
__block NSError *localError = nil;
|
|
if (self.savesToPersistentStore) {
|
|
success = [context saveToPersistentStore:&localError];
|
|
} else {
|
|
[context performBlockAndWait:^{
|
|
success = [context save:&localError];
|
|
}];
|
|
}
|
|
if (success) {
|
|
if ([self.targetObject isKindOfClass:[NSManagedObject class]]) {
|
|
[self.managedObjectContext performBlock:^{
|
|
RKLogDebug(@"Refreshing mapped target object %@ in context %@", self.targetObject, self.managedObjectContext);
|
|
[self.managedObjectContext refreshObject:self.targetObject mergeChanges:YES];
|
|
}];
|
|
}
|
|
} else {
|
|
if (error) *error = localError;
|
|
RKLogError(@"Failed saving managed object context %@ %@", (self.savesToPersistentStore ? @"to the persistent store" : @""), context);
|
|
RKLogCoreDataError(localError);
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
- (BOOL)saveContext:(NSError **)error
|
|
{
|
|
if ([self.privateContext hasChanges]) {
|
|
return [self saveContext:self.privateContext error:error];
|
|
} else if ([self.targetObject isKindOfClass:[NSManagedObject class]] && [(NSManagedObject *)self.targetObject isNew]) {
|
|
// Object was like POST'd in an unsaved state and we wish to persist
|
|
return [self saveContext:[self.targetObject managedObjectContext] error:error];
|
|
}
|
|
|
|
return YES;
|
|
}
|
|
|
|
- (BOOL)obtainPermanentObjectIDsForInsertedObjects:(NSError **)error
|
|
{
|
|
__block BOOL _blockSuccess = YES;
|
|
__block NSError *localError = nil;
|
|
NSArray *insertedObjects = [self.privateContext.insertedObjects allObjects];
|
|
if ([insertedObjects count] > 0) {
|
|
RKLogDebug(@"Obtaining permanent ID's for %ld managed objects", (unsigned long) [insertedObjects count]);
|
|
[self.privateContext performBlockAndWait:^{
|
|
_blockSuccess = [self.privateContext obtainPermanentIDsForObjects:insertedObjects error:&localError];
|
|
}];
|
|
if (!_blockSuccess && error) *error = localError;
|
|
}
|
|
|
|
return _blockSuccess;;
|
|
}
|
|
|
|
- (void)willFinish
|
|
{
|
|
BOOL success;
|
|
NSError *error = nil;
|
|
|
|
// Handle any cleanup
|
|
success = [self deleteTargetObjectIfAppropriate:&error];
|
|
if (! success) {
|
|
self.error = error;
|
|
return;
|
|
}
|
|
|
|
success = [self deleteLocalObjectsMissingFromMappingResult:&error];
|
|
if (! success) {
|
|
self.error = error;
|
|
return;
|
|
}
|
|
|
|
// Persist our mapped objects
|
|
success = [self obtainPermanentObjectIDsForInsertedObjects:&error];
|
|
if (! success) {
|
|
self.error = error;
|
|
return;
|
|
}
|
|
success = [self saveContext:&error];
|
|
if (! success) {
|
|
self.error = error;
|
|
return;
|
|
}
|
|
|
|
// Refetch all managed objects nested at key paths within the results dictionary before returning
|
|
if (self.mappingResult) {
|
|
NSDictionary *resultsDictionaryFromOriginalContext = RKDictionaryFromDictionaryWithManagedObjectsInMappingEventsRefetchedInContext([self.mappingResult dictionary], self.entityMappingEvents, self.managedObjectContext);
|
|
self.mappingResult = [[RKMappingResult alloc] initWithDictionary:resultsDictionaryFromOriginalContext];
|
|
}
|
|
}
|
|
|
|
- (void)mapperDidFinishMapping:(RKMapperOperation *)mapper
|
|
{
|
|
NSMutableArray *entityMappingEvents = [NSMutableArray array];
|
|
[mapper.mappingInfo enumerateKeysAndObjectsUsingBlock:^(id rootKey, NSDictionary *keyPathsToPropertyMappings, BOOL *stop) {
|
|
[keyPathsToPropertyMappings enumerateKeysAndObjectsUsingBlock:^(NSString *keyPath, RKPropertyMapping *propertyMapping, BOOL *stop) {
|
|
if ([propertyMapping.objectMapping isKindOfClass:[RKEntityMapping class]]) {
|
|
// If the parent object mapping is an `RKEntityMapping`, add a mapping event at its keyPath
|
|
[entityMappingEvents addObject:[RKEntityMappingEvent eventWithRootKey:rootKey
|
|
keyPath:RKKeyPathByDeletingLastComponent(keyPath)
|
|
entityMapping:(RKEntityMapping *)propertyMapping.objectMapping]];
|
|
}
|
|
if ([propertyMapping isKindOfClass:[RKRelationshipMapping class]]) {
|
|
if ([[(RKRelationshipMapping *)propertyMapping mapping] isKindOfClass:[RKEntityMapping class]]) {
|
|
[entityMappingEvents addObject:[RKEntityMappingEvent eventWithRootKey:rootKey keyPath:keyPath entityMapping:(RKEntityMapping *)[(RKRelationshipMapping *)propertyMapping mapping]]];
|
|
}
|
|
}
|
|
}];
|
|
}];
|
|
self.entityMappingEvents = entityMappingEvents;
|
|
}
|
|
|
|
@end
|