I am trying to match foreign key relationships returned by my JSON API using RestKit.
In particular, I use Loopback to create an API with objects of type Teamand User. By default, there are two endpoints that return the following JSON:
/ Teams /
[
{
"title": "Team Title",
"id": 1,
}
]
/ Users /
[
{
"name": "Alice",
"id": 1,
"teamId": 1,
},
{
"name": "Bob",
"id": 2,
"teamId": 1,
}, ...
]
API, ? RestKit , (, RestKit/CoreData JSON , RestKit, Restkit: GET , Core Data) , .
, API. Team User, . , , , , , Loopback API .
, ( , ) :
Team
RKEntityMapping *teamMapping = [RKEntityMapping mappingForEntityForName:@"Team" inManagedObjectStore:objectManager.managedObjectStore];
[teamMapping addAttributeMappingsFromArray:@[ @"title", @"id" ]];
teamMapping.identificationAttributes = @[ @"id" ];
[objectManager addResponseDescriptor:[RKResponseDescriptor responseDescriptorWithMapping:teamMapping method:RKRequestMethodAny pathPattern:@"Teams" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]];
User
RKEntityMapping *userMapping = [RKEntityMapping mappingForEntityForName:@"User" inManagedObjectStore:objectManager.managedObjectStore];
[userMapping addAttributeMappingsFromArray:@[ @"name", @"id", @"teamId" ]];
userMapping.identificationAttributes = @[ @"id" ];
[userMapping addConnectionForRelationship:@"team" connectedBy:@{ @"teamId": @"id" }];
[objectManager addResponseDescriptor:[RKResponseDescriptor responseDescriptorWithMapping:userMapping method:RKRequestMethodGET pathPattern:@"Users" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]];
(, ), RKConnectionDescription teamId. JSON, Team, User ( Path pathPattern ), , . , , , . , , Stub id, .
RestKit?
: JSON "teamId": 1 "team": { "id": 1 } keyPath Team? , Loopback.
?
2: , :
RKEntityMapping *teamStubMapping = [RKEntityMapping mappingForEntityForName:@"Team inManagedObjectStore:objectManager.managedObjectStore];
[teamStubMapping addAttributeMappingsFromDictionary:@{@"teamId": @"id"}];
teamStubMapping.identificationAttributes = @[ @"id" ];
[objectManager addResponseDescriptor:[RKResponseDescriptor responseDescriptorWithMapping:teamStubMapping method:RKRequestMethodAny pathPattern:@"Users" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]];
, , . ? , , ? User, .
3: , RestKit , , , , GitHub. nil :
RKEntityMapping *teamStubMapping = [RKEntityMapping mappingForEntityForName:@"Team inManagedObjectStore:objectManager.managedObjectStore];
[teamStubMapping addPropertyMapping:[RKAttributeMapping attributeMappingFromKeyPath:nil toKeyPath:@"id"]];
teamStubMapping.identificationAttributes = @[ @"id" ];
[objectManager addResponseDescriptor:[RKResponseDescriptor responseDescriptorWithMapping:teamStubMapping method:RKRequestMethodAny pathPattern:@"Users" keyPath:@"teamId" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]];