json - ios Restkit - Mapping objects with a list within another list -

i'm trying map objects using restkit. have no problems mapping normal json responses. in case have problem because want map response configuration:

{     "id": 161,     "text": "usertest",     "test": {         "id": "1",         "begindate": "17/04/2013",         "expectedduration": "45 minutes",         "finishdate": "17/04/2013",         "groups": [             {                 "id": 71,                 "text": "some text",                 "number":"number"             },             {                 "id": 81,                 "text": "some anothertext             }         ]         ... } 

as can see, have main object 3 attributes(id, text , list of tests). each test has attributes(id, begindate,...,). each test has list of groups. , here problem. when try map this, restkit can't map 'groups' list.

i'm mapping this code:

//### test rkentitymapping *testcompletemapping = [rkentitymapping mappingforentityforname:@"usertest" inmanagedobjectstore:managedobjectstore]; [testcompletemapping addattributemappingsfromdictionary:@{  @"id":             @"usertestid",  }];  rkentitymapping *usertest_testmapping = [rkentitymapping mappingforentityforname:@"test" inmanagedobjectstore:managedobjectstore]; [usertest_testmapping addattributemappingsfromdictionary:@{  @"id":             @"testid",  @"begindate":            @"begindate",  @"expectedduration":@"expectedduration",  @"finishdate":         @"finishdate",  }];  rkrelationshipmapping* usertest_test_relationship = [rkrelationshipmapping relationshipmappingfromkeypath:@"test" tokeypath:@"test" withmapping:usertest_testmapping];  //### groups  rkentitymapping *grouptestmapping = [rkentitymapping mappingforentityforname:@"questiongroup" inmanagedobjectstore:managedobjectstore]; [grouptestmapping addattributemappingsfromdictionary:@{  @"id":             @"groupid",  @"number":            @"number",  @"text":@"text",  }];  rkrelationshipmapping* group_test_relationship = [rkrelationshipmapping relationshipmappingfromkeypath:@"groups" tokeypath:@"groups" withmapping:usertest_testmapping];   //### add property mappings   rkresponsedescriptor *completetestresponsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:testcompletemapping pathpattern:@"/api/module/demo2/lesson/phasellus/test/71" keypath:nil statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)];   [testcompletemapping addpropertymappingsfromarray:[nsarray arraywithobjects:usertest_test_relationship, nil]]; [usertest_testmapping addpropertymapping:group_test_relationship];  [objectmanager addresponsedescriptor:completetestresponsedescriptor]; 

i tried use "test.groups" instead of "groups" didn't work.

try code below. you're main issue appears typo (in definition of group_test_relationship), missing identification attributes (not strictly required) code on correct path.

you didn't show definition of testcompletemapping you'll need add , check typos.

//### test  rkentitymapping *usertest_testmapping = [rkentitymapping mappingforentityforname:@"test" inmanagedobjectstore:managedobjectstore]; [usertest_testmapping addattributemappingsfromdictionary:@{  @"id": @"testid",  @"begindate": @"begindate",  @"expectedduration": @"expectedduration",  @"finishdate": @"finishdate",  }];  usertest_testmapping.identificationattributes = @[ @"testid" ];  //### groups  rkentitymapping *grouptestmapping = [rkentitymapping mappingforentityforname:@"questiongroup" inmanagedobjectstore:managedobjectstore]; [grouptestmapping addattributemappingsfromdictionary:@{  @"id": @"groupid",  @"text": @"text",  }];  grouptestmapping.identificationattributes = @[ @"groupid" ];  [usertest_testmapping addpropertymapping:[rkrelationshipmapping relationshipmappingfromkeypath:@"groups" tokeypath:@"groups" withmapping:grouptestmapping]];   // complete 'testcompletemapping' here, adding 'test' relationship property mapping 'usertest_testmapping' if required   //### add property mappings   rkresponsedescriptor *completetestresponsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:testcompletemapping pathpattern:@"/api/module/demo2/lesson/phasellus/test/71" keypath:nil statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)];  [objectmanager addresponsedescriptor:completetestresponsedescriptor];