Files
RestKit/Code/ObjectMapping/RKObjectAttributeMapping.m
Blake Watters 586034bae4 Add support for the use of nesting key attributes as the primaryKey in managed mappings.
This bug was causing duplication of objects in the store due to failed lookup of
existing objects. Added fix and test coverage for the use-case.
2011-10-05 10:50:52 -04:00

71 lines
2.3 KiB
Objective-C

//
// RKObjectElementMapping.m
// RestKit
//
// Created by Blake Watters on 4/30/11.
// Copyright 2011 RestKit
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#import "RKObjectAttributeMapping.h"
extern NSString* const RKObjectMappingNestingAttributeKeyName;
@implementation RKObjectAttributeMapping
@synthesize sourceKeyPath = _sourceKeyPath;
@synthesize destinationKeyPath = _destinationKeyPath;
/**
@private
*/
- (id)initWithSourceKeyPath:(NSString *)sourceKeyPath andDestinationKeyPath:(NSString *)destinationKeyPath {
NSAssert(sourceKeyPath != nil, @"Cannot define an element mapping an element name to map from");
NSAssert(destinationKeyPath != nil, @"Cannot define an element mapping without a property to apply the value to");
self = [super init];
if (self) {
_sourceKeyPath = [sourceKeyPath retain];
_destinationKeyPath = [destinationKeyPath retain];
}
return self;
}
- (id)copyWithZone:(NSZone *)zone {
RKObjectAttributeMapping* copy = [[[self class] allocWithZone:zone] initWithSourceKeyPath:self.sourceKeyPath andDestinationKeyPath:self.destinationKeyPath];
return copy;
}
- (void)dealloc {
[_sourceKeyPath release];
[_destinationKeyPath release];
[super dealloc];
}
- (NSString *)description {
return [NSString stringWithFormat:@"RKObjectKeyPathMapping: %@ => %@", self.sourceKeyPath, self.destinationKeyPath];
}
+ (RKObjectAttributeMapping *)mappingFromKeyPath:(NSString *)sourceKeyPath toKeyPath:(NSString *)destinationKeyPath {
RKObjectAttributeMapping *mapping = [[self alloc] initWithSourceKeyPath:sourceKeyPath andDestinationKeyPath:destinationKeyPath];
return [mapping autorelease];
}
- (BOOL)isMappingForKeyOfNestedDictionary {
return ([self.sourceKeyPath isEqualToString:RKObjectMappingNestingAttributeKeyName]);
}
@end