Question

我试图在RKEntityMapping中使用RestKit;（救命啊！

  NSURL *baseURL = [NSURL URLWithString:@"http://api.mymemory.translated.net"];

RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:baseURL];


// Initialize managed object model from bundle
NSManagedObjectModel *managedObjectModel = [NSManagedObjectModel mergedModelFromBundles:nil];
// Initialize managed object store
RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel];
objectManager.managedObjectStore = managedObjectStore;


// Complete Core Data stack initialization
[managedObjectStore createPersistentStoreCoordinator];
NSString *storePath = [RKApplicationDataDirectory() stringByAppendingPathComponent:@"MyArticlesDB.sqlite"];
NSString *seedPath = [[NSBundle mainBundle] pathForResource:@"RKSeedDatabase" ofType:@"sqlite"];
NSError *error;

NSPersistentStore *persistentStore = [managedObjectStore addSQLitePersistentStoreAtPath:storePath fromSeedDatabaseAtPath:seedPath withConfiguration:nil options:nil error:&error];
NSAssert(persistentStore, @"Failed to add persistent store with error: %@", error);

// Create the managed object contexts
[managedObjectStore createManagedObjectContexts];

// Configure a managed object cache to ensure we do not create duplicate objects
managedObjectStore.managedObjectCache = [[RKInMemoryManagedObjectCache alloc] initWithManagedObjectContext:managedObjectStore.persistentStoreManagedObjectContext];

RKEntityMapping *matchMapping = [RKEntityMapping mappingForEntityForName:@"Match" inManagedObjectStore:managedObjectStore];
[matchMapping addAttributeMappingsFromDictionary:@{@"id"    :@"id",
                                                   @"segment"   :@"segment",
                                                   @"trnaslation"   :@"translation",
                                                   @"quality"       :@"quality",
                                                   @"reference"     :@"reference",
                                                   @"usage-count"   :@"usage_count",
                                                   @"subject"       :@"subject",
                                                   @"created-by"    :@"MateCat",
                                                   @"last-updated-by"   :@"last_updated_by",
                                                   @"create-date"       :@"create_date",
                                                   @"last-update-date"  :@"last_update_date",
                                                   @"tm_properties"     :@"tm_properties",
                                                   @"match"         :@"match"}];


RKEntityMapping *translationMapping = [RKEntityMapping mappingForEntityForName:@"Translation" inManagedObjectStore:managedObjectStore];
[translationMapping addAttributeMappingsFromDictionary:@{@"responseData.translatedText"     :@"translatedText",
                                                         @"responseData.match"              :@"match",
                                                         @"responseDetails"                 :@"responseDetails",
                                                         @"responseStatus"                  :@"responseStatus",
                                                         @"responseId"                      :@"responseId"}];









      RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:translationMapping method:RKRequestMethodGET pathPattern:@"/" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:responseDescriptor];

json：http://api.mymemory.translated.net/get?q=Hello%20World!&langpair=en%7Cru

错误：

错误Domain = org.restkit.RestKit.ErrorDomain Code = 1001＆＃34;没有响应描述符与加载的响应匹配。＆＃34; UserInfo = {NSLocalizedFailureReason =从URL＆＃39; http://api.mymemory.translated.net/get?q=Hello%20World!&langpair=en%7Cru＆＃39;加载了200响应，无法匹配所有（0）响应描述符：，NSErrorFailingURLStringKey = http://api.mymemory.translated.net/get?q=Hello%20World!&langpair=en%7Cru，NSErrorFailingURLKey = { {3}}，NSUnderlyingError = 0x1700562f0 {Error Domain = org.restkit.RestKit.ErrorDomain Code = 1001＆＃34;在搜索的关键路径中找不到可映射的对象表示。＆＃34; UserInfo = {NSLocalizedDescription =在搜索的关键路径中找不到可映射的对象表示。，NSLocalizedFailureReason =映射操作无法在搜索的关键路径中找到任何嵌套对象表示：发现输入到映射器的表示包含以下键路径的嵌套对象表示：matches，responderId，responseData，responseDetails，responseStatus 这可能表示您错误配置了映射的关键路径。，keyPath = null，DetailedErrors =（）}，keyPath = null，NSLocalizedDescription =没有响应描述符匹配加载的响应。}

Answer 1

我忘了添加关系。这帮助了我。

RKRelationshipMapping *res = [RKRelationshipMapping relationshipMappingFromKeyPath:@"responseData" toKeyPath:@"responseData" withMapping:responseMapping];

 RKRelationshipMapping *matchRelation = [RKRelationshipMapping relationshipMappingFromKeyPath:@"matches" toKeyPath:@"matches" withMapping:matchMapping];


[globalMappig addPropertyMapping:matchRelation];
[globalMappig addPropertyMapping:responseRelation];

RestKit，RKEntityMapping响应描述符的问题

1 个答案: