I've noticed that Exception.pm and Error.pm don't seem to be extensively used in the perl community. Is that due to the large footprint of eval for exception handling? Also perl programs appear to have a much more lenient policy regarding exception handling in general. Is there a compelling reason for this? In any event what would be...
I'd like some advice on building in known errors. Let's say I have a Windows form that needs to set the source path of an image in an object. It must be: A valid path An image A PNG 32 x 32 in size No transparency The thing about catching errors is that I'd like the class to handle the errors as much as possible, instead of the Windo...
is there a python middleware that captures errors from web app and emails it? which is the easiest one to use. i am deploying app using nginx proxying to multiple app servers of gunicorn+web.py framework. right now any error is printed out in each app server, which is not very easy to manage. what is the best way to handle this? ...
this is a really basic question (I hope). Most of the exception handling I have done has been with c#. In c# any code that errors out in a try catch block is dealt with by the catch code. For example try { int divByZero=45/0; } catch(Exception ex) { errorCode.text=ex.message(); } The error would be displayed in errorCode.text. ...
op <- options(warn=0) #although doesn't work for any value of warn assign("last.warning", NULL, envir = baseenv()) thisDoesntWork<- function() { warning("HEY, this is definitely a warning!") cat(paste("number of warnings:",length(warnings()))) } >thisDoesntWork() Warning in thisDoesntWork() : HEY, this is definitely a warning! numb...
Hi, My iPhone application continuously communicate with a web server. So in case of a connection lost or the server is not reachable is there any specific precautions we should do? I know that we have to show the user about the communication failure. If so is there any acceptable way of showing errors to the user? Im more concentrated o...
Friends, I have a problem............ Help me please........ Am getting the image url from my client, i want to store those images in my local folder. if those images are in less, i will save them manually But they are greater than 5000 images......... Please give some code to down load all the images with PHP ...
Hey everyone! I'm building a webapp in PHP that uses a MySql DB. What I want to do is for example when someone tries to access to a page, but the DB throws an error, to display a HTML (or redirect) page with the HTTP code 500. Something like the "fail whale" in Twitter. Is that possible? ...
What is the correct way of handling errors on the client side of Silverlight applications? I tried building a service endpoint that would receive details about the error and then would write that string to the database. The problem is, the error's text exceeds the maximum byte length, so I can't send the exception message and stacktrac...
Hi I am facing a problem with hooks in Codeigniter.I have written hook for 'post_controller' which call a Controller function and load the template (Layout view template).It works fine for all normal cases. But now i need to make a custom error page.So i am overriding show_404() function.In this function i use the get_instance(); functi...
Hi , what is the most elegant way to handle errors in an Asynchronous arch. assuming I have the following workflow : I have a web application that creates new files (bussines configuration files) from that point the following steps are copying the new files to a network shared file system . dispatching refresh commands to several app...
Sorry if the question is obvious, I am only starting to work with Rails. I have a following code in several controller methods now: respond_to do |format| if @project.save format.html { redirect_to(edit_project_url(@project), :notice => '#{user.name} added to #{role}.') } format.js else format.html { rend...
Hi to all, Issue I merged a branch in a master not updated at last commit. What I do I merged a branch in master git merged BRANCHNAME Conflicts Automatic merge failed; fix conflicts and then commit the result. git commit -a -m "Resolved conflicts while merging email-fix branch" Then I tried to push all to origin master, but i...
Let's say you have a .NET system that needs to send out email notifications to a system administrator when there's an error. Example: try { //do something mission critical } catch(Exception ex) { //send ex to the system administrator //give the customer a user-friendly explanation } This block of code gets called hundred...
I get an UnboundLocalError because I use a template value inside an if statement which is not executed. What is the standard way to handle this situation? class Test(webapp.RequestHandler): def get(self): user = users.get_current_user() if user: greeting = ('Hello, ' + user.nickname()) else...
Let me illustrate this question with a simplified example. Assume I am building a project using python with a PostgreSQL relational database. In my database I have two tables "parent" and "child" which are N to M related through the table "parent_child". I want to be able to retrieve some data about a specific child owned by a specific p...