RACCommand's executionSignals's subscribeNext block or error's block execute more times?

[longjianjiang]

i use RACCommand to send a network request in a sendController, you can click this controller right barbuttomitem, then will execute a command; if success, this sendController will be dismissed;
but when fail, you know i add the log in the errors's subscribeNext block; i click barbuttomitem first time, the log will be show one time; but when i click at the second time, the log will be show two times; and it will always added one times if i continue click;
so, i want to know is there some solution to settle this problem? thanks!

[mdiep]

You only need to call the error's subscribeNext: once. It sounds like you're calling it multiple times. Can you share some code?

[longjianjiang]

sure; the view like below picture;

if the server send error like 403(cause my app don't be verified so the server limit the interface call times). And the user can did this sendBtn more times, so the errors subscribeBlock can be executed more times, as same as the command be executed more times too; Here is my code, so can i have some solution to avoid this kind of problem?

[[_sendBtn rac_signalForControlEvents:UIControlEventTouchDown] subscribeNext:^(id x) {
            
            [weakSelf.sendViewModel.sendCommand.executionSignals.switchToLatest subscribeNext:^(id x) {
                MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
                hud.mode = MBProgressHUDModeText;
                hud.labelText = @"已发送";
                [hud hide:YES afterDelay:1.0];

                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                    [self.view endEditing:YES];
                    [self dismissViewControllerAnimated:YES completion:nil];
                });
            }];
            
            
            [weakSelf.sendViewModel.sendCommand.errors subscribeNext:^(id x) {
                LJLog(@"()()()()"); // click more times the text will be loged more times
                MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
                hud.mode = MBProgressHUDModeText;
                hud.labelText = @"新浪服务器开小差了...";
                [hud hide:YES afterDelay:1.0];
            }];
            
            NSDictionary *dict = @{@"statusd":_textView.text};
            [self.sendViewModel.sendCommand execute:dict];
        }];

[mdiep]

You shouldn't subscribe to errors or executionSignals every time the button is pressed. It should only happen once.

            [weakSelf.sendViewModel.sendCommand.executionSignals.switchToLatest subscribeNext:^(id x) {
                MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
                hud.mode = MBProgressHUDModeText;
                hud.labelText = @"已发送";
                [hud hide:YES afterDelay:1.0];

                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
                    [self.view endEditing:YES];
                    [self dismissViewControllerAnimated:YES completion:nil];
                });
            }];
            
            
            [weakSelf.sendViewModel.sendCommand.errors subscribeNext:^(id x) {
                LJLog(@"()()()()"); // click more times the text will be loged more times
                MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
                hud.mode = MBProgressHUDModeText;
                hud.labelText = @"新浪服务器开小差了...";
                [hud hide:YES afterDelay:1.0];
            }];

[[_sendBtn rac_signalForControlEvents:UIControlEventTouchDown] subscribeNext:^(id x) {
            NSDictionary *dict = @{@"statusd":_textView.text};
            [self.sendViewModel.sendCommand execute:dict];
        }];

[longjianjiang]

ok, thank you very much.