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* Metadata mapping is implemented via an `NSProxy` object that stands in for the `sourceObject` of each `RKMappingOperation` * Key paths that are prefixed with `@metadata.` are mapped against the `metadata` dictionary of the operation, else they hit the `sourceObject`. * Metadata is implemented by merging a dictionary of data in from `RKObjectRequestOperation`, through to `RKResponseMapperOperation`, into `RKMapperOperation`, and all the way down into the `RKMappingOperation`, where it is available to each object. By convention, metdata is namespaced into subdictionaries.
68 lines
2.1 KiB
Objective-C
68 lines
2.1 KiB
Objective-C
//
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// RKRelationshipMapping.m
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// RestKit
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//
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// Created by Blake Watters on 5/4/11.
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// Copyright (c) 2009-2012 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 "RKRelationshipMapping.h"
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#import "RKMapping.h"
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@interface RKRelationshipMapping ()
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@property (nonatomic, copy, readwrite) NSString *sourceKeyPath;
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@property (nonatomic, copy, readwrite) NSString *destinationKeyPath;
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@property (nonatomic, strong, readwrite) RKMapping *mapping;
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@end
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@implementation RKRelationshipMapping
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+ (instancetype)relationshipMappingFromKeyPath:(NSString *)sourceKeyPath toKeyPath:(NSString *)destinationKeyPath withMapping:(RKMapping *)mapping
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{
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RKRelationshipMapping *relationshipMapping = [self new];
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relationshipMapping.sourceKeyPath = sourceKeyPath;
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relationshipMapping.destinationKeyPath = destinationKeyPath;
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relationshipMapping.mapping = mapping;
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return relationshipMapping;
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}
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- (id)init
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{
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self = [super init];
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if (self) {
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self.assignmentPolicy = RKSetAssignmentPolicy;
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}
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return self;
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}
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- (id)copyWithZone:(NSZone *)zone
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{
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RKRelationshipMapping *copy = [super copyWithZone:zone];
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copy.mapping = self.mapping;
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copy.assignmentPolicy = self.assignmentPolicy;
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return copy;
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}
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- (BOOL)isEqualToMapping:(RKRelationshipMapping *)otherMapping
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{
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if (! [otherMapping isMemberOfClass:[RKRelationshipMapping class]]) return NO;
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if (! [super isEqualToMapping:otherMapping]) return NO;
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if (self.mapping == nil && otherMapping.mapping == nil) return YES;
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return [self.mapping isEqualToMapping:otherMapping.mapping];
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}
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@end
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