Examples showing how to query for object relations from loopback SDK

[abbasmousavi]

I am trying to query a loopback server for relations between models, I have a "Section" Model and an "item" model, and a has me nay relation between them, so I can query for all items in a section with /sections/:id/items from a rest client.

How can I do the same query from loopback iOS client? any documentation or code examples?

[ritch]

This isn't supported yet in the SDK. You should be able to accomplish this by subclassing LBModel and adding a method similar to this...

- (void)relatedItems:(LBModelAllSuccessBlock)success
                   failure:(SLFailureBlock)failure {
    [self invokeMethod:@"items"
            parameters:@{}
               success:^(id value) {
                   NSAssert([[value class] isSubclassOfClass:[NSArray class]], @"Received non-Array: %@", value);

                   NSMutableArray *models = [NSMutableArray array];

                   [value enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
                       [models addObject:[self modelWithDictionary:obj]];
                   }];

                   success(models);
               }
               failure:failure];
}

/cc @Schoonology @raymondfeng @mschmulen

[baldoph]

@ritch I can't get this to work. I have the very same goal and when I call -invokeMethod:@"items"... on my Section (: LBModel) the server returns a 404 status code: "message":"could not find a model with id prototype","statusCode":404,"code":"MODEL_NOT_FOUND" The URL the iOS SDK built is URL: http://0.0.0.0:3000/api/sections/prototype/items