0
Je rencontre des difficultés pour mapper un objet dans Restkit qui est imbriqué. La réponse est la suivante:Comment mapper des objets dans Restkit lorsque la réponse d'une clé change entre dictionnaire et chaîne?
{
"status": "SUCCESS",
"message": "Newsfeeds loaded successfully",
"links": {
"self": ""
},
"newsfeeds": [
{
"type": "post",
"content": {
"id": "39ff4ea6-71d4-4d9c-872b-94d878ec54fd",
"owner_id": "75c72102-d7dc-44c6-bb62-c48b487897c4",
"owner_firstname": "Goran",
"owner_lastname": "Don",
"owner_profilephoto": "88f5930b-e779-47ac-86b7-4f31cd0d82aa.jpg",
"contents": [
{
"type": "text",
"content": "Being the richest man in the cemetery doesn't matter to me. Going to bed at night saying we've done something wonderful, that's what matters to me.\n Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations"
},
{
"type": "url",
"content": {
"title": "Beautiful landscape view Of New Zealand and Australia is available here",
"position": "landscape",
"url": "39ff4ea6-71d4-4d9c-872b-94d878ec54fd/Img_62151fbd-119f-4a84-91a9-f37bfa6293db.jpg"
}
}
],
"postdatetime": "May 18 2016 12:18:54.442 UTC",
"selfLike": false,
"likes": 0,
"comments": 0,
"starred": "false"
}
},
{
"type": "post",
"content": {
"id": "7117d132-1811-4ac7-bfaf-bbb397eefb10",
"owner_id": "75c72102-d7dc-44c6-bb62-c48b487897c4",
"owner_firstname": "Goran",
"owner_lastname": "Don",
"owner_profilephoto": "88f5930b-e779-47ac-86b7-4f31cd0d82aa.jpg",
"contents": [
{
"type": "text",
"content": "Hi this is a test"
}
],
"postdatetime": "May 18 2016 11:42:24.978 UTC",
"selfLike": false,
"likes": 0,
"comments": 0,
"starred": "false"
}
},
{
"type": "post",
"content": {
"id": "fbeb20cf-c87b-40db-9753-9fa32aac921a",
"owner_id": "75c72102-d7dc-44c6-bb62-c48b487897c4",
"owner_firstname": "Goran",
"owner_lastname": "Don",
"owner_profilephoto": "88f5930b-e779-47ac-86b7-4f31cd0d82aa.jpg",
"contents": [
{
"type": "url",
"content": {
"title": "",
"position": "potrait",
"url": "fbeb20cf-c87b-40db-9753-9fa32aac921a/Img_23771f1c-bb22-4335-ae3f-4e83d97c5c3c.jpg"
}
},
{
"type": "url",
"content": {
"title": "",
"position": "landscape",
"url": "fbeb20cf-c87b-40db-9753-9fa32aac921a/Img_a77e8349-b531-4d9d-944e-88971298c6fa.jpg"
}
}
],
"postdatetime": "May 18 2016 07:39:07.937 UTC",
"selfLike": true,
"likes": 1,
"comments": 0,
"starred": "false"
}
},
{
"type": "post",
"content": {
"id": "71e005a1-71ec-4131-8131-bfd38337ec6a",
"owner_id": "75c72102-d7dc-44c6-bb62-c48b487897c4",
"owner_firstname": "Goran",
"owner_lastname": "Don",
"owner_profilephoto": "88f5930b-e779-47ac-86b7-4f31cd0d82aa.jpg",
"contents": [
{
"type": "url",
"content": {
"title": "",
"position": "potrait",
"url": "post/71e005a1-71ec-4131-8131-bfd38337ec6a/Img_600f6fd0-14f9-4bf3-af6e-f36b7ffedbc6.jpg"
}
}
],
"postdatetime": "May 18 2016 07:27:53.278 UTC",
"selfLike": false,
"likes": 0,
"comments": 0,
"starred": "false"
}
}
]
}
De ce qui précède, le besoin d'atteindre « contenu » au sein de tableau « contenu ». "content" parfois la chaîne de retour et parfois le dictionnaire. Je suis en train de la carte comme suit:
RKObjectMapping * newsFeedMappingObject = [RKObjectMapping mappingForClass:[NewsFeed class]];
[newsFeedMappingObject addAttributeMappingsFromDictionary:@{@"type" : @"type",}];
RKObjectMapping * responseMappingObject = [RKObjectMapping mappingForClass:[ResponseMessage class]];
[responseMappingObject addAttributeMappingsFromDictionary:@{uStatus: @"status",uMessage: @"message",}];
[responseMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"newsfeeds"
toKeyPath:@"newsfeeds"
withMapping:newsFeedMappingObject]];
RKObjectMapping * contentMappingObject = [RKObjectMapping mappingForClass:[Content class]];
[contentMappingObject addAttributeMappingsFromDictionary:@{@"id": @"contentId"}];
[newsFeedMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"content"
toKeyPath:@"cont"
withMapping:contentMappingObject]];
RKObjectMapping * postContentMappingObject = [RKObjectMapping mappingForClass:[PostContent class]];
[postContentMappingObject addAttributeMappingsFromDictionary:@{@"type": @"type",}];
[contentMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"contents"
toKeyPath:@"contents"
withMapping:postContentMappingObject]];
RKObjectMapping * postMappingObject = [RKObjectMapping mappingForClass:[Post class]];
[postMappingObject addAttributeMappingsFromDictionary:@{@"title":@"title"}];
[postContentMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"content"
toKeyPath:@"post"
withMapping:postMappingObject]];
Quand je le lance les plantages d'applications avec journal que: ** * Mettre fin application en raison d'une exception non interceptée « NSUnknownKeyException », la raison: « [< __NSCFString 0x7fa302826d30> valueForUndefinedKey: ]: cette classe n'est pas compatible avec le codage de valeur de clé pour le titre clé.
Essayer ma main sur le mapping dynamique. Mais je pense que je fais mal:
RKObjectMapping * newsFeedMappingObject = [RKObjectMapping mappingForClass:[NewsFeed class]];
[newsFeedMappingObject addAttributeMappingsFromDictionary:@{
@"type" : @"type",
}];
RKObjectMapping * responseMappingObject = [RKObjectMapping mappingForClass:[ResponseMessage class]];
[responseMappingObject addAttributeMappingsFromDictionary:@{
uStatus: @"status",
uMessage: @"message",
}];
[responseMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"newsfeeds"
toKeyPath:@"newsfeeds"
withMapping:newsFeedMappingObject]];
RKObjectMapping * contentMappingObject = [RKObjectMapping mappingForClass:[Content class]];
[contentMappingObject addAttributeMappingsFromDictionary:@{
@"id": @"contentId",
}];
[newsFeedMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"content"
toKeyPath:@"cont"
withMapping:contentMappingObject]];
RKObjectMapping * postContentMappingObject = [RKObjectMapping mappingForClass:[PostContent class]];
[postContentMappingObject addAttributeMappingsFromDictionary:@{
@"type": @"type",
}];
[contentMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"contents"
toKeyPath:@"contents"
withMapping:postContentMappingObject]];
RKObjectMapping * postMappingObject = [RKObjectMapping mappingForClass:[Post class]];
[postMappingObject addAttributeMappingsFromDictionary:@{
@"title" : @"title"
}];
RKDynamicMapping* dynamicMapping = [RKDynamicMapping new];
[postMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"post" toKeyPath:@"content" withMapping:dynamicMapping]];
// Connect a response descriptor for our dynamic mapping
RKResponseDescriptor *dynamicResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:dynamicMapping method:RKRequestMethodAny pathPattern:nil keyPath:@"content" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[[RKObjectManager sharedManager] addResponseDescriptor:dynamicResponseDescriptor];
// Option 2: Configure the dynamic mapping via a block
[dynamicMapping setObjectMappingForRepresentationBlock:^RKObjectMapping *(id representation) {
if ([[representation valueForKey:@"content"] isKindOfClass:[NSDictionary class]]) {
return postMappingObject;
}
return nil;
}];
[postContentMappingObject addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"content"
toKeyPath:@"post"
withMapping:postMappingObject]];
NSString *urlString = [NSString stringWithFormat:@"%@%@%@&userId=%@&startDate=%@&count=%d&scanForward=%@",uServiceUrl,uGetNewsFeedsRequest,accountId,userId,startDate,count,isForward];
NSString* encodedUrl = [urlString stringByAddingPercentEncodingWithAllowedCharacters:
[NSCharacterSet URLQueryAllowedCharacterSet]];
NSURL *getNewsRequestUrl = [NSURL URLWithString:encodedUrl];
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:responseMappingObject method:RKRequestMethodAny pathPattern:nil keyPath:@"" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[self getWithUrlString:getNewsRequestUrl withMappingObject:responseMappingObject andResponseDescriptors:@[responseDescriptor, dynamicResponseDescriptor] withSuccess:successBlock withFail:failBlock];
Pourquoi est-ce parfois une chaîne? Vous devrez utiliser un mappage dynamique personnalisé ... – Wain
La réponse est de cette manière. Je n'ai aucun contrôle sur cela. Aurai-je besoin de changer postMappingObject? – Ranjith
Oui, vous allez .. – Wain