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109 lines
3.1 KiB
Objective-C
109 lines
3.1 KiB
Objective-C
//
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// RKMappingResult.m
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// RestKit
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//
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// Created by Blake Watters on 5/7/11.
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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 "RKMappingResult.h"
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#import "RKMappingErrors.h"
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#import "RKLog.h"
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@interface RKMappingResult ()
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@property (nonatomic, strong) NSDictionary *keyPathToMappedObjects;
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@end
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@implementation RKMappingResult
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- (id)initWithDictionary:(id)dictionary
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{
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self = [self init];
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if (self) {
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self.keyPathToMappedObjects = dictionary;
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}
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return self;
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}
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+ (RKMappingResult *)mappingResultWithDictionary:(NSDictionary *)keyPathToMappedObjects
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{
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return [[self alloc] initWithDictionary:keyPathToMappedObjects];
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}
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- (NSDictionary *)asDictionary
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{
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return _keyPathToMappedObjects;
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}
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- (NSArray *)asCollection
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{
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// Flatten results down into a single array
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NSMutableArray *collection = [NSMutableArray array];
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for (id object in [_keyPathToMappedObjects allValues]) {
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// We don't want to strip the keys off of a mapped dictionary result
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if (NO == [object isKindOfClass:[NSDictionary class]] && [object respondsToSelector:@selector(allObjects)]) {
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[collection addObjectsFromArray:[object allObjects]];
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} else {
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[collection addObject:object];
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}
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}
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return collection;
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}
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- (id)asObject
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{
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NSArray *collection = [self asCollection];
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NSUInteger count = [collection count];
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if (count == 0) {
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return nil;
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}
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if (count > 1) RKLogWarning(@"Coerced object mapping result containing %lu objects into singular result.", (unsigned long)count);
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return [collection objectAtIndex:0];
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}
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- (NSError *)asError
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{
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NSArray *collection = [self asCollection];
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NSString *description = nil;
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if ([collection count] > 0) {
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description = [[collection valueForKeyPath:@"description"] componentsJoinedByString:@", "];
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} else {
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RKLogWarning(@"Expected mapping result to contain at least one object to construct an error");
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}
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NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:collection, RKObjectMapperErrorObjectsKey,
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description, NSLocalizedDescriptionKey, nil];
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NSError *error = [NSError errorWithDomain:RKErrorDomain code:RKMappingErrorFromMappingResult userInfo:userInfo];
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return error;
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}
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- (NSString *)description
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{
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return [NSString stringWithFormat:@"<%@: %p, results=%@>", NSStringFromClass([self class]), self, self.keyPathToMappedObjects];
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}
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- (NSUInteger)count
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{
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return [[self asCollection] count];
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}
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@end
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