RestKit PUT request with error mapping - ios

Question

Im making an app that communicates with a rails based backend server.
I already have all the server calls ready and working via RESTKit, but I am having
problems with creating error mappings for my update calls.
My response descriptors for one of my classes
RKResponseDescriptor *descriptor = [RKResponseDescriptor responseDescriptorWithMapping:[Mappings liveViewMapping]
method:RKRequestMethodAny
pathPattern:nil
keyPath:#"event_enriched"
statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[self addResponseDescriptor:descriptor];
RKResponseDescriptor *errorDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:[Mappings errorMapping]
method:RKRequestMethodAny
pathPattern:nil
keyPath:#"error"
statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassClientError)];
[self addResponseDescriptor:errorDescriptor];
Edit: I've also tried it with keyPath "errors" and 'nil' .. same results
My error mapping is quite simple:
+ (RKObjectMapping *)errorCollectionMapping {
RKObjectMapping *errorMapping = [RKObjectMapping mappingForClass:[ErrorCollection class]];
NSDictionary *mappingDictionary = #{#"error" : #"message",
#"errors" : #"messages",
};
[errorMapping addAttributeMappingsFromDictionary:mappingDictionary];
return errorMapping;
}
This is how I am trying to update my Book object
[self putObject:book
path:API_BOOK
parameters:nil
success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
if (success) {
Book *book = [mappingResult.dictionary objectForKey:#"book"];
success(book);
}
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
if (failure) failure(operation, error);
}
];
But when I get a server error, which should be handled by my response descriptor I get the following error:
Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No mappable object representations were found at the key paths searched." UserInfo=0x7f935d07c7a0 {NSLocalizedDescription=No mappable object representations were found at the key paths searched., NSLocalizedFailureReason=The mapping operation was unable to find any nested object representations at the key paths searched: book
The representation inputted to the mapper was found to contain nested object representations at the following key paths: error, error_description
This likely indicates that you have misconfigured the key paths for your mappings., keyPath=null, DetailedErrors=(
)}
What am I doing wrong?
I already have some GET requests, that have multiple mappings (non of them is an error mapping yet) which works fine, but can't "replicate" the same behavior with error mapping
oh.. I am using restkit-0.24 :)
edit:
the error responses coming back from my rails server are in this form:
{"errors": ["error1", "error2" ... ] }
or
{"error": "error message" }

Answer 1

i feel so stupid right now ...
The server responses had code 200 and not the 400-499 range that RKStatusCodeClassClientError predicts.