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• What is a programmer's life like?

  - by Zee JollyRoger

  Imagine like an 8-hour long video of any "typical/average" programming job. What is it like? Before I get myself involved in that path, what can I expect? I am interested in gathering first-hand information and accounts of the typical life of a programmer. My goal is to grasp the fundamental concepts of working in the professional field of programming. I just want to "see" into what it is/means to come to an entry-level programming job and program. See what kind of skills, mentality, expectations, and such are required.

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• Proper way in MVVM to drive visual states.

  - by firoso

  Given a content presenter that can display one of 4 different application pages, and I want to fade/otherwise animate a transition between pages based on view model state. Ideally I'd like to have these all defined within a DataTemplate, and then trigger transitions based on an enum from the view model, so that when some enum representing state changes, the transitions trigger to the appropriate page. Is there a known best practice to handle things like this? Immediately coming to mind is the possibiltiy to use Enter and Exit actions on data triggers to play storyboards, but this definately doesn't use the parts and states model, so I'd like to shy away from that. I've also tried using the DataStateSwitchBehavior from the codeplex Expression project, but found it to be incompatable with the latest builds of WPF 4.0/Blend 4 RC's SDK. Does anyone have any ideas on how to handle this elegantly? I'm using the MVVM-Light framework. Also I'd like to point out that as long as this resides on a DataTemplate in a Resource Dictionary, code-behind is not an option without refactoring.

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• Rails can't render polymorphic associations to XML?

  - by ambertch

  When I render XML with an :include clause for a polymorphic association I have, it doesn't work. I end up with the XML returning the object pointers instead of the actual objects, like: <posts> #<Comment:0x102ed1540>#<Comment:0x102ecaa38>#<Comment:0x102ec7fe0>#<Comment:0x102ec3cd8> </posts> Yet as_json works! When I render JSON with :include clause, the associations are rendered correctly and I get something like: posts":[ {"type":"Comment","created_at":"2010-04-20T23:02:30-07:00","id":7,"content":"fourth comment"}, {"type":"Comment","created_at":"2010-04-20T23:02:26-07:00","id":6,"content":"third comment"}] My current workaround is using XML builder, but I'm not too comfortable with that in the long run. Does anyone happen to know about this issue? I'm kind of in a catch-22 because while XML doesn't render the associations, as_json doesn't render in a kosher json format (returns an array rather than a list of hashes as proper json should) and the deserializer I'm using on the client side would require modification to parse the json correctly.

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• ASP.NET MVC- Bizarre problem - suddennly lost all LINQTO SQL data context objects

  - by MikeD

  I was making an edit to a long existing project. Specifically I added some fields to a table and had to delete the table from the LINQTOSQL designer and re-add it. doesn't Also had to do the same for a view. Mode some other code changes and went to build . Now my project won't build because it can't resolve any of the data context objects (all tables and views) in my code. I don't know what I did or how this happeened. I have many tables and views in the project's L2S data context so I don't wont to try and do over. Please any suggestions on how to resolve this problem are greatly appreciated. Desparate! The error messages I am getting are the familiar The type or namespace name 'equipment' could not be found (are you missing a using directive or an assembly reference?)

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• Delete or comment out non-working JUnit tests?

  - by Chris Knight

  I'm currently building a CI build script for a legacy application. There are sporadic JUnit tests available and I will be integrating a JUnit execution of all tests into the CI build. However, I'm wondering what to do with the 100'ish failures I'm encountering in the non-maintained JUnit tests. Do I: 1) Comment them out as they appear to have reasonable, if unmaintained, business logic in them in the hopes that someone eventually uncomments them and fixes them 2) Delete them as its unlikely that anyone will fix them and the commented out code will only be ignored or be clutter for evermore 3) Track down those who have left this mess in my hands and whack them over the heads with the printouts of the code (which due to long-method smell will be sufficently suited to the task) while preaching the benefits of a well maintained and unit tested code base

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• Do minidump files contain the timestamp of the crash?

  - by Roger Lipscombe

  The MiscInfoStream in a minidump file contains the process create time. I'd like to find out how long the process has been running for before the crash. Does a minidump file contain the exception timestamp anywhere? WinDbg on this dump file displays the following, which implies that it's in there somewhere... Debug session time: Tue Dec 29 15:49:20.000 2009 (GMT+0) System Uptime: not available Process Uptime: 0 days 0:33:03.000 Note that today's Mar 15, so this is almost certainly the timestamp of the crash. I'd like a programmatic way to retrieve that value and the "Process Uptime" value. I found the MINIDUMP_MISC_INFO_3 structure, which contains some timezone information, but it doesn't seem to contain the exception time.

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• Graceful handling of server timeout in BlazeDS

  - by Rydell

  I have a flex client that makes service calls to a tomcat server running BlazeDS. I would like to gracefully handle server session timeouts in this environment. I do have security constraints on the service, so the client authenticates against a remote object by initializing a ChannelSet based on the destination, and then logging in using that ChannelSet. After the user is authenticated, if they go get a (long) cup of coffee, their session will inevitably time out. I would like the client to detect the timeout, and return the user back to the login page, with the appropriate informational messages. But I am having difficulty finding the best way to detect this timeout from the client. Is it possible, or must I have the server throw an error when the timeout occurs? Thanks!

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• Problem with HSQLDB & SequenceGenerator

  - by Srirangan

  Hi, I have an entity which has an ID field: @Id @Column(name = "`U##ID_VOIE`") @GeneratedValue(generator = "VOIE_SEQ") private String id; The class has the sequence generator defined as well: @SequenceGenerator(name = "VOIE_SEQ", sequenceName = "VOIE_SEQ") and the Oracle schema has the requisite sequence present. Everything works okay. We also have tests, which uses an in-memory HSQLDB. Before running the tests, all the tables are created based on the Hibernate entity classes. However the table for this particular class is not being created. And error pops up, because ID is a String and the SequenceGenerator in HSQLDB returns an INT / LONG / Numeric value. The application is using a legacy Oracle database and ID_VOIE column must remain a String / Varchar. Any solutions?

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• py.test import context problems (causes Django unit test failure)

  - by dhill

  I made a following test: # main.py import imported print imported.f.__module__ # imported.py def f(): pass # test_imported.py (py.test test case) import imported def test_imported(): result = imported.f.__module__ assert result == 'imported' Running python main.py, gives me imported, but running py.test gives me error and result value is moduletest.imported (moduletest is the name of the directory I keep the test in. It doesn't contain __init__.py, moduletest is the only directory containing *.py files in ~/tmp). How can I fix result value? The long story: I'm getting strange errors, while testing Django application. A call to reverse() from (django.urlresolvers). with function object foo as argument in tests crashes with NoReverseMatch: Reverse for 'site.app.views.foo'. The same call inside application works. I checked and it is converted to 'app.views.foo' (without site prefix). I first suspected my customised test setup for Django, but then I made above test.

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• Open source / commercial alternative for jiffy.js?

  - by Marcel

  Hi, we'd like to measure "client side web site performance". i.e. we would like to have answers to the following questions: how long did it takt to load and render a webpage (including alle graphics scripts etc.) this bundled with additional informations like user-agent, operating system etc. a graphical tool to analyze the data would be perfect I know jiffy ( http://code.google.com/p/jiffy-web/wiki/Jiffy_js ) but that isn't maintained anymore. I would prefer either a hosted solution (like google analytics) or a java based solution that we deploy for ourselves. Do you know something like that? Thanks, Marc

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• stopping android handler loop

  - by venka reddy

  Hi, i am using a class which extends Handler class to update my activity UI. The code is as follows in side main activity, /////////////////////////////// public class RefreshHandler extends Handler { public void handleMessage(Message msg) { Homeform.this.updateUI(); } public void sleep(long delayMillis) { this.removeMessages(0); sendMessageDelayed(obtainMessage(0), delayMillis); } }; private void updateUI(){ Log.v("","== I am inside Update UUI====================="); refresh(); mRedrawHandler.sleep(5000); } /////////////////////////// And i had call this method handleMessage() on the object of RefreshHandler as follows /////////////////////////////////////////// mRedrawHandler = new RefreshHandler(); mRedrawHandler.handleMessage(new Message()); //////////////////////////////////////////////// But here i am facing one problem that is it is running after closing my application also . please solve my problem to stop this handler when close this application. ThanQ.....

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• best practice to obtain time zone for iPhone vs iPod Touch

  - by johnbdh

  I am creating an app that requires the users current time zone. If the device being used is an iPhone and the user has their Time Zone set to automatically change, I think I can be fairly confident that localTimeZone or systemTimezone will give me the correct time zone for the user's location. If on the other hand the device is an iPod Touch, the time zone returned by localTimeZone and systemTimeZone appears to always be whatever time zone is set in the Date & Time settings, regardless of the user's actual location. I tried using location services but, while the lat/long is being provided properly, the time zone offset in the timesStamp I am getting is always the same as whatever the user has set for their time zone setting. Any suggestions? John

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• Jquery draggable persistence either through mysql or saving cookie in the database?

  - by Muhammad Jehanzaib

  I want to know that how can I persist the divs dropped on a draggable. I have been trying since long but stuck at this point. Actually you can see the demo here. I have to save the user designed wedding floor. So whenever user logins next time he/ she is able to see the last design saved. The code is shown below: $(document).ready(function() { $("#droppable").droppable({ accept: '.draggable', drop: function(event, ui) { $(this).append($(ui.draggable).clone()); $("#droppable .draggable").addClass("objects"); $(".objects").removeClass("ui-draggable draggable"); $(".objects").draggable({ containment: 'parent', }); } }); $(".draggable").draggable({ helper: 'clone', tolerance: 'touch', cursor:'move' }); });

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• How to set timeout with python-mechanize?

  - by Michal Cihar

  I'm using python-mechanize to scrape some web sites, which sometime simply don't respond to requests and these requests stay open too long, so I need to limit timeout for these requests. While using urlopen method, the timeout can be set using timeout parameter, but I have not found easy way for doing it with high level API such as submit or click methods. Ideally the timeout would be set just once for whole browser class and all calls would honor that. It would be probably possible to customize this by passing custom request_class to every click and submit call, but this would just pollute the code, so I'm looking for nicer solution for setting timeout for mechanize's browser class (and no, I don't want to change default socket timeout using socket.setdefaulttimeout).

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• How do I prevent a ManyToManyField('self') from linked an object to itself?

  - by dyve

  Consider this model (simplified for this question): class SecretAgentName(models.Model): name = models.CharField(max_length=100) aliases = ManyToManyField('self') I have three names, "James Bond", "007" and "Jason Bourne". "James Bond" and "007" are aliases of each other. This works exactly like I want it to, except for the fact that every instance can also be an alias of itself. This I want to prevent. So, there can be many SecretAgentNames, all can be aliases of each other as long as "James Bond" does not show up as an alias for "James Bond". Can I prevent this in the model definition? If not, can I prevent it anywhere else, preferably so that the Django Admin understands it?

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• Deleting QWinWidget

  - by user152508

  Hello I am using mfc to Qt migration and I am showing Qt dialogs in my Mfc app. Is it Ok to deleteLater QWinWidget in its winEvent handler? The thing is that I want all of my open Qt dialogs in My Mfc application to be automatically deleted when the main mfc window is closed. Since WM_DESTROY will be sent for all child windows ( and the Qt widgets too) So I added the following code in QwinWidget winEvent handler : QWinWidget::winEvent(MSG * message, long * result) { ........ if(message->message == WM_DESTROY ) deleteLater(); return false; } Can someone comment this Thanks

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• Pushing app to heroku problem

  - by Ryan Max

  Hi, I am trying to push my app to heroku and I get the following message: $ heroku create Creating electric-meadow-15..... done Created http://electric-meadow-15.heroku.com/ | [email protected]:electric-meadow-1 5.git $ git push heroku master ! No such app as fierce-fog-63 fatal: The remote end hung up unexpectedly It's weird that I am getting this now, I have pushed the app to heroku many times without issue. the especially weird thing is, fierce-fog-63 is an old app that I made a deleted a long time ago. Why is it now that heroku is trying to push to this app that doesn't exist anymore, especially when I have created a new one. Any suggestions?

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• Google Chrome + Ajax

  - by teehoo

  Im writing an ajax web app that uses Comet/Long Polling to keep the webpage up to date, and I noticed in Chrome, it treats the page as if its always loading (icon for the tab keeps spinning). I thought this was normal for Google Chrome + Ajax because even Google Wave had this behaviour. Well today I noticed that Google Wave no longer keeps the loading icon spinning, anyone know how they fixed this? Here's my ajax call code var xmlHttpReq = false; // Mozilla/Safari if (window.XMLHttpRequest) { xmlHttpReq = new XMLHttpRequest(); } // IE else if (window.ActiveXObject) { xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP"); } xmlHttpReq.open('GET', myURL, true); xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xmlHttpReq.onreadystatechange = function() { if (xmlHttpReq.readyState == 4) { updatePage(xmlHttpReq.responseText); } } xmlHttpReq.send(null);

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• Good Perlin noise resources/implementation?

  - by Chumpy

  Are there any good resources out there detailing Perlin noise generation? I understand that most languages have noise generating libraries available, but I'm interested in creating my own for fun/experience. I've already looked at this, which seems pretty popular, but it only gives an in-depth explanation of one dimensional noise. Google searches have been relatively unhelpful so far, as most of them focus on applications instead of how to create a generator. Books and/or websites are welcome, even if their focus is not the generation itself so long as it gives a thorough explanation of an implementation, or at least the concepts involved so I can "discover" my own.

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• Why is my ipad's wireless so flakey?

  - by Mark

  I'm the proud owner of a new IPad here in the UK. All is good, except for the wifi, which is a bit flakey. It connects fine to my Draytek router which is set for WPA/WPA2 and 56g only, displaying full signal strength. Then, after a few minutes, it goes down to minimum strength... And sometimes it goes back up again. A few times, it seems to loose connection completely, and needs to be turned off and on again. I've looked at the Apple support site, and have tried their recommendations (which are not really very relevant), but still nothing. I've tried setting the router to wpa2 only, and setting long-preamble. Right now, I guess I want to know if it's a hardware problem with my device and should be returned, or if it's a problem with all ipads which will be resolved. Guess I could take it back to the Mac genius bar, but I find those guys so incredibly pretentious and, frankly, rather useless, that i'd rather wait until I've exercised other options!

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• WPF Binding XAML vs C#

  - by kubal5003

  Hello, I've got a strange problem - binding created through XAML (both ways by markup extension or normal) isn't working(BindingOperations.IsDataBound returns false and in fact there is no Binding object created). When I do literally the same from code everything is working perfectly. One more thing is that the Binding in XAML is created in a DataTemplate - what's funny about that when I use the DataTemplate for the first time it fails, then I fix it from code (add binding to specific objects) and while adding more objects to the collection the binding set in XAML just works. If I try to remove all the objects from the collection and then add a new one the binding fails once again. In reality this is a shortened version of another of my questions. For details please refer to: http://stackoverflow.com/questions/2986511/wpf-debugging-avalonedit-binding-to-document-property Sorry for doing it this way, but there's no answer and it's probably too long for anybody to read. -

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• Cruise control.NET invoking an IDE

  - by Maddy

  Hi, I have an IDE named VxWorks 653 2.2.3 Development shell which needed to be invoked all the time when i notice any change in my source files.So i had invoked this shell through a VB scripts which invokes two more .bat(Batch files) to get this shell popped up for execution.Now i feel that since my IDE can be invoked by command line,it can also be invoked through nant scripts using the statement like D:\WindRiver\wrenv.exe -p vxworks653-2.2.3 But what i see is that its not at all invoking.I had tried all different ways but all turned out to be in vain. Can anyone pls suggest me any way either in nant scripts or in cruise control by which my IDE can be invoked.Now at present i am using VB scripts which is a very long proceess. Thanks and regards Maddy

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• how to read an address in multiple formats like google maps

  - by ratan

  notice that on google maps you can input the address any way you like. as long as it is a valid address...google maps will read it. In some ruby book I had seen code snippet for something like this, but with phone numbers. Any ideas how this could be done for addresses? in language of your choice. EDIT: i dont care about a "valid" address. I just want to parse an address. so that 123 fake street, WA, 34223 would be an address and so will 123 fake street WA 34223

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• Is there anyway to reduce IsolatedStorage capacity in Silverlight?

  - by Edward Tanguay

  With this code I can have Silverlight ask the user if he wants to increase IsolatedStorage: private void Button_IncreaseIsolatedStorage_Click(object sender, RoutedEventArgs e) { IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication(); long newStorageCapacityInBytes = FileHelpers.GetMaxiumumSpace() + SystemHelpers.GetAmountOfStorageToIncreaseWhenNeededInBytes(); store.IncreaseQuotaTo(newStorageCapacityInBytes); Message = "IsolatedStorage increased. " + FileHelpers.GetSpaceLeftMessage(); } But if I try to set it to an amount less than it current is, I get an error that this is not possible. 1. Is there a workaround for this, i.e. can I reduce the amount of IsolatedStorage? 2. When the user agrees to increasing IsolatedStorage, can other applications use this capacity or just the application in which he increased it?

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• NSNumberFormatter to display custom labels for 10^n (10000 -> 10k)

  - by Michele Colombo

  I need to display numbers on a plot axis. The values could change but I want to avoid too long numbers that will ruin the readability of the graph. My thought was to group every 3 characters and substitute them with K, M and so on (or a custom character). So: 1 - 1, 999 - 999, 1.000 - 1k, 1.200 - 1.2k, 1.280 - 1.2k, 12.800 - 12.8k, 999.999 - 999.9k, 1.000.000 - 1M, ... Note that probably I'll only need to format round numbers (1, 10, 1000, 1500, 2000, 10000, 20000, 30000, 100000, ...). Is that possibile with NSNumberFormatter? I saw that it has a setFormat method but I don't know how much customizable it is. I'm using NSNumberFormatter cause the graph object I use wants it to set label format and I want to avoid changing my data to set the label.

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