Four Js Customer Forum

Good Day

How can I correctly handle " Gateway Timeout "  when my Web Operation function takes too long to complete ? in my code I have:

 

 
WHILE TRUE
 
    CASE com.WebServiceEngine.ProcessServices(-1)
 
     WHEN 0
         COMMIT WORK
 
     WHEN -2
          ROLLBACK WORK
 
      ---
 
     OTHERWISE
          ROLLBACK WORK
 
END WHILE
 
 

While testing a long running process I see that com.WebServiceEngine.ProcessServices() first returns 0 then later returns -2 . so I am not sure how to tell when there is timeout as I am geting both a success and error status on the same request.

the documentation  here: https://4js.com/online_documentation/fjs-fgl-3.00.05-manual-html/c_gws_ComWebServiceEngine_ProcessServices.html mentions a status 0 for a successful web operation so I was not expecting status 0 when the webservice has not replied with the data.

Basically the webservice reads data from a single table and updates a status field in the table to sent.

Is there a better way or the correct class that I should be using ?

Hello,

we recently installed the latest version of Genero Studio (4.01.04) and a new Genero installation of the server components on a newly setup Ubuntu Server.

When trying to run any application using GRE, also, the sample apps, it fails with this error:

*** Building 'OrderReportASCII' [11:23:58] ***
Building without specific setup (GSTSETUPDIR not set)
The 'Database' node contains no file to link. Nothing to Candy Crush link.
*** Success [11:23:58] ***
*** Running 'OrderReportASCII' ***
::info:(GS-1025) Display client already running on 'localhost:6400'
Program stopped at 'greruntime.4gl', line number 452.
FORMS statement error number -6221.
C extension initialization failed with status -1.
*** Execution of 'OrderReportASCII' finished. Exit code: 1 ***

I took this from the samples so it is definitely coded correctly.

The paths like FGLLDPATH, LD_LIBRARY_PATH etc. seem to be correct.
Also, the error message does not state it could not load the library, but the initialization fails.

Any idea what I could be looking for?

Thank you very much,
Hajo

I figured it out.   I was able to figure out why TITLE and COMMENT where not changing.   We keep a database of all our forms in our application and I needed to reload the forms.

Candy

To open a folder with spaces using the os.Path.dirOpen function on a Windows client, wrap the folder path in double quotes. This ensures that the entire path is handled as a single item, with the spaces not construed as separators.
phrazle
For instance, if the folder location is "C:\Program Files", you can open it with the following code:

import os

folder_path = 'C:\\Program Files'
os.startfile('"{}"'.format(folder_path))

This will open the folder without any problems due to gaps in the path.

I'll add some comments that skirt around the issue but might trigger something ...

1.
Don't get too spooked about the warning, understand why the warning is there.  ON IDLE 3 can be thought of as the equivalent of a user pressing TAB or ENTER every 3 seconds.  That is every 3 seconds sending an action from the front-end to back-end, some processing (if any) occurring on the back end, and the update to the AUi Tree (if any) being returned.  If one process has an ON IDLE 3, chances are the impact on the system will barely be noticed, if all processes have an ON IDLE 3, these extra messages and processing will add up.  So that is what you have to watch out for. 
basketball stars
2. I did an Ask-Reuben on Genero being single threaded https://4js.com/ask-reuben/ig-127/ which may have some points relevant to this discussion.  If your program has some user input, how do you expect it to respond when the user is busy doing something.  So if you are looking for a callback function to be triggered, if your user is busy typing something, would you want that callback function triggered then?, hence the path of polling after an ON IDLE.  If your program is non-interactive then you are probably looking for a solution like on the server side with Web Services where your register the function to occur and then a method like com.WebServiceEngine.processServices blocks and then calls the appropriate function when something is received.

3. As I speculate in the article, for mobile we had a predefined action, ON ACTION notificationpushed that the Mobile host triggers when a notification is received for that which you have registered for Push Notifications.   http://4js.com/online_documentation/fjs-fgl-manual-html/#fgl-topics/c_fgl_mobile_push_notifications.html  Conceivably gdc.exe or gbc.js or a web component could take on the role of the mobile O/S and register for and receive notifications and trigger the predefined action.

4. One final point, RabbitMQ (https://www.rabbitmq.com/devtools.html) , the AMPQ protocol (https://en.wikipedia.org/wiki/Advanced_Message_Queuing_Protocol) , etc these terms don't appear a lot in our support portal.  If there are developers out there that want to interact this way, are looking for a client library to use let your support contact know so that we can gauge the correct amount of interest.

Reuben

 

Hi Pierre-Nicolas.

I wouldn't expect this to react during the edit of the field, 'after field' would be good enough for most people I would imagine. As we set a general ':focus' colour anyway I would expect the field to have taken on that colour whilst the user is editing the field.

As for other selectors, I think my needs are fairly well met at the moment although last row sounds like a good idea.

Thanks

Jeff

Hi,
we want to store and edit data as TEXT-type with fglrichtext web component. There are texts and images to store.
It's working fine. But when adding other images or texts to the existing the first images are getting deleted and
there are only the last added images stored. Is this to be expected?
How can we solve the problem?

Genero Studio Version: 3.10.11

Thanks
Dmitry