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PORestKit not deleting orphaned objects from local store
 

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  1. PORestKit not deleting orphaned objects from local store
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    <p>Hi i have updated RestKit from 0.10.2 to 0.20.3. After updating now when objects are missing from web service, RestKit not deleting them from local storage. I know it is supported in RestKit 0.20.x, but i am not being able to configure it. I followed the example given here. <a href="http://restkit.org/api/latest/Classes/RKManagedObjectRequestOperation.html#overview" rel="noreferrer">http://restkit.org/api/latest/Classes/RKManagedObjectRequestOperation.html#overview</a></p> <p>I also followed similar questions on Stackoverflow. But there is no accepted answer yet.</p> <p>Here is my Json</p> <pre><code>{ "status": "Success", "member_info": [ { "family_id": "1", "user_id": "1" }, { "family_id": "2", "user_id": "1" }, { "family_id": "3", "user_id": "1" } ] } </code></pre> <p>Which returns all Family members for a particular user. Above Json is for <code>user_id = 1</code>. Now i want if request is sent for <code>user_id = 2</code>, then all the previous 3 objects should be deleted from local storage, as they are now missing from Json. Here is the new Json for <code>user_id = 2</code></p> <pre><code>{ "status": "Success", "member_info": [ { "family_id": "4", "user_id": "2" }, { "family_id": "5", "user_id": "2" } ] } </code></pre> <p>This is how i am creating mapping.</p> <pre><code>[objectManager addResponseDescriptorsFromArray:@[ [RKResponseDescriptor responseDescriptorWithMapping:[self connectionsMapping] method:RKRequestMethodPOST pathPattern:@"familylist" keyPath:@"member_info" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)]]; [objectManager addFetchRequestBlock:^NSFetchRequest *(NSURL *URL) { RKPathMatcher *pathMatcher = [RKPathMatcher pathMatcherWithPattern:@"familylist"]; NSDictionary *argsDict = nil; BOOL match = [pathMatcher matchesPath:[URL relativePath] tokenizeQueryStrings:NO parsedArguments:&amp;argsDict]; if (match) { NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:@"DBConnections"]; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"user_id == %@", [DBUser currentUser].user_id]; fetchRequest.predicate = predicate; fetchRequest.sortDescriptors = @[ [NSSortDescriptor sortDescriptorWithKey:@"first_name" ascending:YES] ]; return fetchRequest; } return nil; }]; - (RKEntityMapping *)connectionsMapping { RKEntityMapping *connectionsMapping = [RKEntityMapping mappingForEntityForName:@"DBConnections" inManagedObjectStore:objectManager.managedObjectStore]; connectionsMapping.setDefaultValueForMissingAttributes = NO; connectionsMapping.identificationAttributes = @[@"family_id"]; [connectionsMapping addAttributeMappingsFromDictionary:@{ @"family_id": @"family_id", @"user_id": @"user_id", }]; return connectionsMapping; } </code></pre> <p>In predicate i am using <code>[DBUser currentUser].user_id</code>, which returns the current logged in <code>user_id</code>. And here is i am calling the web service</p> <pre><code>[[RKObjectManager sharedManager] postObject:nil path:@"familylist" parameters:params success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { NSLog(@"Objects are %@", mappingResult.array); }]; </code></pre> <p>I am using <code>postObject</code> instead of <code>getObjectsAtPath</code>, because server is expecting <code>POST</code> request method. Am i doing wrong? or need to do something else for deleting orphan objects. Any help is appreciated.</p>
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    1. USKhawar
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    1. CODid you debug the value of `[DBUser currentUser].user_id`? The predicate shouldn't really be required, did you try without a predicate?
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    2. COThanks @Wain, i was looking for you :), i did debug the value for predicate and i was fine, let me try without predicate.
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      1. USKhawar
    3. COStill same even without predicate, the previous data is not deleted.
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