{"id":2373,"date":"2014-10-29T00:03:15","date_gmt":"2014-10-28T20:03:15","guid":{"rendered":"https:\/\/blog.alwawee.ru\/?p=2373"},"modified":"2014-10-29T00:03:15","modified_gmt":"2014-10-28T20:03:15","slug":"using-dispatch-group-wait-multiple-operations-executed-including-completion-block-afnetworking","status":"publish","type":"post","link":"https:\/\/blog.alwawee.ru\/?p=2373","title":{"rendered":"Using dispatch group to wait until multiple operations executed &#8211; including completion block (AFNetworking)"},"content":{"rendered":"<pre>\r\n\/\/ \u0417\u0430\u0433\u0440\u0443\u0437\u043a\u0430 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043f\u043e API \u0434\u043b\u044f \u0444\u043e\u0440\u043c\r\n- (void)loadAdditionalInformationFromServer\r\n{\r\n    loadingError = nil;\r\n    success = YES;\r\n    \r\n    group = dispatch_group_create();\r\n    \r\n    [self startOfferEducationsRetrieveOperation];\r\n    \r\n    [self startOfferLanguageLevelsRetrieveOperation];\r\n    \r\n    [self startOfferTradesRetrieveOperation];\r\n    \r\n    [self startOfferLanguagesRetrieveOperation];\r\n    \r\n    [self startOperatingScheduleRetrieveOperation];\r\n    \r\n    [self startRegionsRetrieveOperation];\r\n    \r\n    dispatch_group_notify(group, dispatch_get_main_queue(), ^{\r\n     [self.delegate resumeManagerDidFinishLoadingAdditionalInformationWithSuccess:success error:loadingError];\r\n    });\r\n    \r\n    \/\/dispatch_group_wait(group, DISPATCH_TIME_FOREVER);\r\n\r\n    dispatch_release(group);\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0443\u0440\u043e\u0432\u043d\u0435\u0439 \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f\r\n- (void)startOfferEducationsRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] offerEducations] == nil) {\r\n        \r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RROfferEducation *obj = [[RROfferEducation alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setOfferEducations:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodOfferEducations successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0443\u0440\u043e\u0432\u043d\u0435\u0439 \u0432\u043b\u0430\u0434\u0435\u043d\u0438\u044f \u044f\u0437\u044b\u043a\u043e\u043c\r\n- (void)startOfferLanguageLevelsRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] offerLanguageLevels] == nil) {\r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RROfferLanguageLevel *obj = [[RROfferLanguageLevel alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setOfferLanguageLevels:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodOfferLanguageLevels successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u044f\u0437\u044b\u043a\u043e\u0432\r\n- (void)startOfferLanguagesRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] offerLanguages] == nil) {\r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RROfferLanguage *obj = [[RROfferLanguage alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setOfferLanguages:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodOfferLanguages successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0433\u0440\u0430\u0444\u0438\u043a\u043e\u0432 \u0440\u0430\u0431\u043e\u0442\u044b\r\n- (void)startOperatingScheduleRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] operatingSchedules] == nil) {\r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RROperatingSchedule *obj = [[RROperatingSchedule alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setOperatingSchedules:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodOperatingSchedules successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0440\u0435\u0433\u0438\u043e\u043d\u043e\u0432\r\n- (void)startRegionsRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] regions] == nil) {\r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RRRegion *obj = [[RRRegion alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setRegions:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodRegions successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0440\u0443\u0431\u0440\u0438\u043a \u0432\u0430\u043a\u0430\u043d\u0441\u0438\u0439\r\n- (void)startOfferTradesRetrieveOperation\r\n{\r\n    if ([[RRSession sharedSession] offerTrades] == nil) {\r\n        \/\/ \u0411\u043b\u043e\u043a \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0433\u043e \u0437\u0430\u0432\u0435\u0440\u0448\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430\r\n        SuccessBlock successBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {\r\n            \r\n            NSArray *jsonArray = (NSArray *)JSON;\r\n            NSMutableArray *temp = [NSMutableArray new];\r\n            for (NSDictionary *jsonDic in jsonArray) {\r\n                RROfferTrade *obj = [[RROfferTrade alloc] initFromDic:jsonDic];\r\n                [temp addObject:obj];\r\n            }\r\n            [[RRSession sharedSession] setOfferTrades:temp];\r\n            \r\n            dispatch_group_leave(group);\r\n        };\r\n        \r\n        \/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n        [self addOperationForMethod:RRApiMethodOfferTrades successBlock:successBlock];\r\n    }\r\n}\r\n\r\n\r\n\/\/ \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u043d\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 \u043e\u0447\u0435\u0440\u0435\u0434\u044c\r\n- (void)addOperationForMethod:(NSString *)methodName successBlock:(SuccessBlock)successBlock\r\n{\r\n    dispatch_group_enter(group);\r\n    \r\n    RRHTTPClient *client = [RRHTTPClient sharedClient];\r\n    NSString *apiMethodPath = [NSString stringWithFormat:@\"%@%@\", [RRHelper apiDomain], methodName];\r\n    NSMutableURLRequest *request = [client requestWithMethod:@\"GET\" path:apiMethodPath parameters:nil];\r\n    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:successBlock failure:[self getStandartFailureBlock]];\r\n    [operation start];\r\n    \r\n    \/\/[[RRServerConnection sharedConnection] addCustomOperation:operation];\r\n}\r\n\r\n\r\n\/\/ \u0411\u043b\u043e\u043a \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0448\u0438\u0431\u043a\u0438 \u043f\u0440\u0438 \u0437\u0430\u043f\u0440\u043e\u0441\u0435\r\n- (FailureBlock)getStandartFailureBlock\r\n{\r\n    FailureBlock failureBlock = ^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {\r\n        \r\n        success = NO;\r\n        loadingError = error;\r\n        \r\n        NSLog(@\"Error: %@\", error);\r\n        [RRHelper showServerErrorMessage];\r\n        \r\n        dispatch_group_leave(group);\r\n        \r\n    };\r\n    \r\n    return failureBlock;\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\/\/ \u0417\u0430\u0433\u0440\u0443\u0437\u043a\u0430 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043f\u043e API \u0434\u043b\u044f \u0444\u043e\u0440\u043c &#8211; (void)loadAdditionalInformationFromServer { loadingError = nil; success = YES; group = dispatch_group_create(); [self startOfferEducationsRetrieveOperation]; [self startOfferLanguageLevelsRetrieveOperation]; [self startOfferTradesRetrieveOperation]; [self startOfferLanguagesRetrieveOperation]; [self startOperatingScheduleRetrieveOperation]; [self startRegionsRetrieveOperation]; dispatch_group_notify(group, dispatch_get_main_queue(), ^{ [self.delegate resumeManagerDidFinishLoadingAdditionalInformationWithSuccess:success error:loadingError]; }); \/\/dispatch_group_wait(group, DISPATCH_TIME_FOREVER); dispatch_release(group); } \/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0443\u0440\u043e\u0432\u043d\u0435\u0439 \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f &#8211; (void)startOfferEducationsRetrieveOperation { if [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[146,145,144,187],"class_list":["post-2373","post","type-post","status-publish","format-standard","hentry","category-ios","tag-afnetworking","tag-dispatch","tag-dispatch_group","tag-ios"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Using dispatch group to wait until multiple operations executed - including completion block (AFNetworking)  - Denis Kutlubaev<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.alwawee.ru\/?p=2373\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using dispatch group to wait until multiple operations executed - including completion block (AFNetworking)  - Denis Kutlubaev\" \/>\n<meta property=\"og:description\" content=\"\/\/ \u0417\u0430\u0433\u0440\u0443\u0437\u043a\u0430 \u0434\u043e\u043f\u043e\u043b\u043d\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043f\u043e API \u0434\u043b\u044f \u0444\u043e\u0440\u043c - (void)loadAdditionalInformationFromServer { loadingError = nil; success = YES; group = dispatch_group_create(); [self startOfferEducationsRetrieveOperation]; [self startOfferLanguageLevelsRetrieveOperation]; [self startOfferTradesRetrieveOperation]; [self startOfferLanguagesRetrieveOperation]; [self startOperatingScheduleRetrieveOperation]; [self startRegionsRetrieveOperation]; dispatch_group_notify(group, dispatch_get_main_queue(), ^{ [self.delegate resumeManagerDidFinishLoadingAdditionalInformationWithSuccess:success error:loadingError]; }); \/\/dispatch_group_wait(group, DISPATCH_TIME_FOREVER); dispatch_release(group); } \/\/ \u0417\u0430\u043f\u0440\u043e\u0441 \u043d\u0430 \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u0435 \u0443\u0440\u043e\u0432\u043d\u0435\u0439 \u043e\u0431\u0440\u0430\u0437\u043e\u0432\u0430\u043d\u0438\u044f - (void)startOfferEducationsRetrieveOperation { if [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.alwawee.ru\/?p=2373\" \/>\n<meta property=\"og:site_name\" content=\"Denis Kutlubaev\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/alwaweemobile\" \/>\n<meta property=\"article:published_time\" content=\"2014-10-28T20:03:15+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/blog.alwawee.com\/?attachment_id=1982\" \/>\n<meta name=\"author\" content=\"Denis Kutlubaev\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Denis Kutlubaev\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blog.alwawee.ru\\\/?p=2373#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blog.alwawee.ru\\\/?p=2373\"},\"author\":{\"name\":\"Denis Kutlubaev\",\"@id\":\"https:\\\/\\\/blog.alwawee.ru\\\/#\\\/schema\\\/person\\\/58f1f1f57155b48afab83ba53b3e26a7\"},\"headline\":\"Using dispatch group to wait until multiple operations executed &#8211; including completion block 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