I am having trouble using HTML::Mason's $m->comp to redirect from one view to another.
There is a file say file1.mi which has embedded HTML code in this file1.mi I am using $m->comp to redirect to file2.mi.
But in the webpage whenever file1.mi is loaded it prints the footer multiple times and in the logs i am getting the errors
Nested page framework application dispatch detected, this usage is not
fully supported and may result in unexpected behavior
and
Error: APPLICATION CONTEXT ERROR (RENDER): 32 levels deep in component
stack (infinite recursive call?)
. Here is the script which i am using for redirecting from file1.mi
return $m->comp('/page-framework/dispatch.mi', applicationPath =>'/gp/tradein/omc', viewID => 'file2.mi', %ARGS);
I am using this script in file1.mi before it renders the webpage -- i.e. before any HTML scripts are executed.
I am kinda new to Mason, if you have queries regarding this please go ahead.
It looks like that your file1.mi gets loaded and rendered, then file2.mi gets executed and it in infinite loop.
Please, show us more code, it is not possible to debug with that small details.
What do you in the web server logs? Please, paste some example from loglines too.
Regards,
It should be your dispatcher dispatch.mi that is calling file1 or file2. Deciding that you want to go elsewhere after the request has already been dispatched seems like the logic is in the wrong place.
Related
In using realbrowserlocusts class it appears that I'm limited in any exception handling.
The only reference that partially works is: self.client.wait.until(EC.visibility_of_element_located ....
In a failed condition where the element is not found the script simply starts over again. With the script I'm working with I need to maintain a solid session state; I need to throw and exception(report an error), log the user out and then let the script start over again. I've been testing out the behavior with the locust.py script that Nick B. created with several approaches to "try, except" and they work running without realbrowserlocusts (selenium only) but with it the execution just stops.
Any examples would be greatly appreciated.
In its current format I've been able to run 3x the amount of a browser-based load per/agent/slave than our commercial tool. My goal is to replace it with a locust/selenium approach.
locust-plugins's WebdriverUser has a little bit better exception handling I think. A failure to find an element will log a failed request and if you use RescheduleTaskOnFail (as in the the example) it will restart the task when that happens.
https://github.com/SvenskaSpel/locust-plugins/blob/master/examples/webdriver_ex.py
I have a shiny app that runs a monte carlo simulation with 500 replications. To do this, I use a for loop and call a function from another package to run the simulation, and then I save the data. The shiny app then produces the results using renderTable.
It is possible that the user could mistakenly enter something that would cause one or more of the replications to fail to converge, triggering a stop in the function I'm calling. If this happens, there is nothing to render in a table. In R, I get a nice error message from the package telling me that the model failed to converge. However, in Shiny, the app just force closes.
I'm currently using tryCatch and showNotification to display this notification in the app (see below):
observeEvent(input$go,
tryCatch({
simulation_results()
},
error = function(err){
showNotification(paste0(err), type = 'err')
})
)
It works well, but the problem is that it causes the app to take 6x longer to run (it goes from ~1.5 min to ~10 min). I think this is because it's trying to catch and show the notification from every individual replication in the for loop. The app also still does close; it just displays the error first (which I do appreciate).
Is there a [faster] way to get shiny to print error messages from the console instead of closing the app?
I was thinking of validate, but I don't know how it would work - what I really need is something like
validate(need("no error message in the console")). I tried using validate(need(simulation_results(),geterrmessage()) to see if it would simply print the last error message if there were no simulation results, but the app shuts down once it gets to the stop error in the function.
Also, I'm using flexdashboard if that changes anything.
How to add tracing (for bug hunting) code to my MediaWiki extension?
When I add echo "XXX"; or var_dump(...);, I don't see it in output (despite the code line where I put this tracing works for sure, as I checked by adding exit(0); instead of this tracing and watching it crashing by exit as expected).
I assume you mean debug logging ("trace" is usually used for recording what method calls happen, as in XDebug function traces). The MediaWiki debugging help page has some information on it, although it's not in great shape. Basically you set $wgDebugLogGroups['mydebuglog'] to point to a logfile, and then use wfDebugLog( 'mydebuglog', 'XXX' ). (PSR-3-style structured logging is possible but requires some setting up.)
Usually var_dump works too, but there is a lot of stuff that happens outside of requests with a web response (jobs or heavy processing that's delayed until the response has been sent).
If you did mean tracing, the profiling help page has some information.
If i execute NPN_Evaluate in plugin, when camera preview is running, the whole ui gets blocked and does not take any input from the user. My understanding was am doing NPN_Evaluate on a wrong NPObject which i get using NPN_GetValue( Npp, NPNVWindowNPObject, &sWindowObj). The script am trying to evaluate is like this:
"confirm (\'Do you want to Capture Image\');"
which shows a popup above camera preview asking to capture image.
ok guys... I found the problem. I was trying to evaluate the javascript from a native call from java to jni. when i changed the thread of execution, the problem was solved.
I have installed the sfErrorNotifierPlugin. When both options reportErrors/reportPHPErrors reportPHPWarnings/reportWarnings are set to false, everything is ok. But I want to catch PHP exceptions and warnings to receive E-mails, but then all my tasks fail, including clear-cache. After few hours of tests I'm 100% sure that the problem is with set_exception_handler/set_error_handler.
There's a similar question:
sfErrorNotifierPlugin on symfony task but the author there is having problems with a custom task. In my case, even built-in tasks fail.
I haven't used sfErrorNotifierPlugin, but I have run into 'The “default” context does not exist.' messages before. It happens when a call is made to sfContext::getInstance() and the context simply doesn't exist. I've had this happen a lot from within custom tasks. One solution is to add sfContext::createInstance() before the call to sfContext::getInstance(). This will ensure that a context exists.
There's an interesting blog post on 'Why sfContext::getInstance() is bad' that goes into more detail - http://webmozarts.com/2009/07/01/why-sfcontextgetinstance-is-bad/
Well, the problem could not be solved this way, unfortunately. Using sfErrorNotifierPlugin, I have enabled reporting PHP warning/errors (apart from symfony exceptions) and this resulted in huge problems, e.g. built-in tasks such as clear-cache failed.
The solution I chose was to load the plugin only in non-task mode (project configuration class):
public function setup()
{
$this->enableAllPluginsExcept('sfPropelPlugin');
if ('cli' == php_sapi_name()) $this->disablePlugins('sfErrorNotifierPlugin');
}
WHen a task is executed, everything works normally. When an app is fired from the browser, emails are sent when exception/warning occurs (maybe someone will find it useful).
Arms has explained the problem correctly. But usually context does not exist when executing backend/maintenance tasks on the console. And it is easier if you handle the condition yourself.
Check, if you really need the context?
If you do, what exactly do you need it for?
Sometimes you only want a user to populate a created_by field. You can work around by hard-coding a user ID.
If you want to do something more integrated, create a page (which will have a context) and trigger the task from there.
you can test the existance of the instance before doing something inside a class. Like:
if(sfContext::hasInstance())
$this->microsite_id = sfContext::getInstance()->getUser()->getAttribute('active_microsite');
I've been experiencing the same problem using the plugin sfErrorNotifier.
In my specific case, I noticed a warning was raised:
Warning: ob_start(): function '' not found or invalid function name in /var/www/ncsoft_qa/lib/vendor/symfony/lib/config/sfApplicationConfiguration.class.php on line 155
Notice: ob_start(): failed to create buffer in /var/www/ncsoft_qa/lib/vendor/symfony/lib/config/sfApplicationConfiguration.class.php on line 155
So, checking the file: sfApplicationConfiguration.class.php class, line 155,
I've replaced the ' ' for a null, then the warnings disappears, and also the error!
ob_start(sfConfig::get('sf_compressed') ? 'ob_gzhandler' : ''); bad
ob_start(sfConfig::get('sf_compressed') ? 'ob_gzhandler' : null); good