ios - Restkit mapping dependency -


is possible make mapping in restkit dependent on each other. have following json structure: 

{     "idlist": [         "1",         "2",         "3",         "4",         "5",         "6",         "7",         "8",         "9",         "10"     ],     “persons”: [         {             "id": 2,             "name": “james”,             "description": “tall”,             "items": [                 {                     "id": 1051,                     "name": “hat”,                     "description": "",                     “accesories”: []                 }             ]         }     ] }

i have 2 response descriptors, in order drill array idlist & persons.

rkresponsedescriptor *responsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:[mappingprovider personsmapping] method:rkrequestmethodget pathpattern:nil keypath:@"persons"statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)]; [self addresponsedescriptor:responsedescriptor];  rkresponsedescriptor *idsresponsedescriptor = [rkresponsedescriptor responsedescriptorwithmapping:[mappingprovider idsmapping] method:rkrequestmethodget pathpattern:nil keypath:@"idlist" statuscodes:rkstatuscodeindexsetforclass(rkstatuscodeclasssuccessful)]; [self addresponsedescriptor:idsresponsedescriptor];

my mapping code: 

+ (rkdynamicmapping *)idsmapping {      rkentitymapping *mapping = [rkentitymapping mappingforentityforname:@"ids" inmanagedobjectstore:[[coredatamanager sharedinstance] objectstore]];      mapping.discardsinvalidobjectsoninsert = yes;      [mapping addpropertymapping:[rkattributemapping attributemappingfromkeypath:nil tokeypath:@"theid"]];      rkdynamicmapping *idsmapping = [rkdynamicmapping new];      [dynamictableidsmapping setobjectmappingforrepresentationblock:^rkobjectmapping *(id representation) {          if (!representation) {              return nil;          } else {              return mapping;          }          return nil;      }];      return dynamictableidsmapping; }  + (rkdynamicmapping *)personsmapping {      rkentitymapping *mapping = [rkentitymapping mappingforentityforname:@"persons" inmanagedobjectstore:[[coredatamanager sharedinstance] objectstore]];      mapping.assignsnilformissingrelationships = yes;     mapping.assignsdefaultvalueformissingattributes = yes;     mapping.discardsinvalidobjectsoninsert = yes;      [mapping addattributemappingsfromdictionary:@{         @"id": @"remoteid",         @"name": @"name"     }];      mapping.identificationattributes = @[ @"remoteid" ];      [mapping addpropertymapping:[rkrelationshipmapping relationshipmappingfromkeypath:@"items"                                                                                    tokeypath:@"products"                                                                                  withmapping:[mappingprovider itemsmapping]]];     rkdynamicmapping * dynamicmenumapping = [rkdynamicmapping new];       [dynamicmenumapping setobjectmappingforrepresentationblock:^rkobjectmapping *(id representation) {        if (!representation) {            return nil;         } else {              nsarray *categoryarray = [representation valueforkey:@"items"];              if (!categoryarray || !categoryarray.count) {                  return nil;              } else {                  return mapping;              }         }          return nil;      }];      return dynamicmenumapping; }

how manage map persons array first , idlist? need map idlist array if persons contains values. want since user presented new view, when data in persons present, , thereby idlist. if persons array empty, not nessasary map idlist.

you need use single response descriptor nil key path. mapping response descriptor dynamic mapping checked contents , returned either mapping handled both sub-sections (so need container class) or nil (to abandon mapping process).


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