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• Finding out the version of Dojo

  - by Sandeep

  I'm kinda new to Dojo toolkit. There are certain issues which I would like to get enlightened (I googled but I didn't get any appropriate & satisfying answers) I have a dojo.js(Perhaps the uncompressed dojo.js downloaded) in my already running application (Developed by another software developer). How to find out which version of dojo.js he has downloaded and is being used right now? (Its not commented. I checked) a) While I'm trying to run my application in IE-8 (Opening a pop-up on click of a button), I get error which is pointing me to this line of code if(dojo.isIE&&window.location.protocol==="file:") Note: Its working fine in IE6 but the issue is with IE8 & to be even more specific the JS error is displayed only for the first time when I'm clicking the button. b) Is it true that dojo 1.3 & above is the best & stable release for IE8?

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• MySQL: Selecting One Record When Others Have Same Data

  - by LoganFrederick

  I have a table of cities that all share the same area code: 367 01451 Harvard Worcester Massachusetts MA 978 Eastern 368 01452 Hubbardston Worcester Massachusetts MA 978 Eastern 369 01453 Leominster Worcester Massachusetts MA 978 Eastern The table has multiple area codes, all with multiple cities. What I'd like to do is only select one city from each area code and delete any extra cities from duplicate area codes. What would be the best query to accomplish this? I believe: http://stackoverflow.com/questions/596629/mysql4-sql-for-selecting-one-or-zero-record Is coming close to what I need but didn't quite get what/how those answers were working. Note The "978" row is the "area_code" row, table name is "zip_code".

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• Text to a PNG on App Engine (Python)

  - by Bemmu

  Note: I am cross-posting this from App Engine group because I got no answers there. As part of my site about Japan, I have a feature where the user can get a large PNG for use as desktop background that shows the user's name in Japanese. After switching my site hosting entirely to App Engine, I removed this particular feature because I could not find any way to render text to a PNG using the image API. In other words, how would you go about outputting an unicode string on top of an image of known dimensions (1024x768 for example), so that the text will be as large as possible horizontally, and centered vertically? Is there a way to do this is App Engine, or is there some external service besides App Engine that could make this easier for me, that you could recommend (besides running ImageMagick on your own server)?

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• An elegant / simple way to check whether internet is available or not.

  - by Trainee4Life

  I did a quick search on how to check whether Internet is available or not. Most of them talked about making InterOp calls to wininet.dll. One of the answers pointed towards System.Net.NetworkInformation namespace. Exploring the namespace I found a class Ping which could be used to pinging to our servers from code, and checking whether server is available or not. What I want to ask is how this solution compares to other solutions? Ping soPing = new Ping(); var soPingReply = soPing.Send("www.stackoverflow.com"); if (soPingReply.Status != IPStatus.Success) { // SO not available }

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• Tiling rectangles seamlessly in WPF while maintaing subpixel accuracy?

  - by Jens

  I have had the problem described in the question Tiling rectangles seamlessly in WPF, but am not really happy with the answers given there. I am painting a bar chart by painting lots of rectangles right next to each other. Depending on the scale of the canvas containing them, there are small gaps visible between some of them as a result from sub-pixel rendering. I learned from the above question how to make my rectangles fit with the screen pixels, removing that effect. Unfortunately, my chart may display way more bars than there are pixels. Apart from the tiny gaps (which manifest as a periodic change in color saturation), this works well. If I snap each bar with the screen pixels, most of the bars vanish, though, so I am looking for another solution. Thanks in advance!

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• javascript: what are immediate functions used for [duplicate]

  - by tkoomzaaskz

  This question already has an answer here: Why using self executing function in JavaScript? [duplicate] 4 answers I've been programming in JS since some time, but I have never came upon a need of using immediate functions, for example: (function(){ console.log('hello, I am an immediate function'); }()) What would be the difference if I just wrote: console.log('hello, I am an immediate function'); ? I don't have any access to this function anyway (it is not assigned anywhere). I think (but I'm not sure) that I can implement everything without immediate functions - so why do people use it?

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• Rate my C# code (~300 SLOC) using GDI+/Backgroundworker

  - by sebastianlarsson

  Hi, I want to get some feedback on my code! Below is some background info. I am taking a pre-certification course in C# (Sweden, 15 ECTS). The focus of the course is theoretical and only limited practical work. I dont find the assignments very hard at all to tell you the truth, but since I only have very limited work experience as a developer (I have worked 15h/week at Ericsson since November) I think I would benefit from having the certificate (70-536 and more probably). I am currently reading Martin Fowler's "Refactoring: Improving the design of existing code" and I tried to apply his techniques to my latest lab in the course. I have been on the lookout for a website which have the idea of providing feedback on code, but so far I have yet to discover any. Please take a look on my code and tell me what you think. It is only roughly 300 lines of code divided into a couple of classes. GDI+, backgroundworker and user controls are what the lab is about. I reckon you may have to spend as little as a couple of minutes on looking on the solution. Link to solution: http://www.filefactory.com/file/b18h7d5/n/Lab4_Lab5_SebastianLarsson.zip Regards and thank you, Sebastian

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• Any valid use of goto in PHP?

  - by nikic

  I know, there are other questions about the goto statement introduced in PHP 5.3. But I couldn't find any decent answer in there, all were of the type "last resort", "xkcd", "evil", "bad", "EVIL!!!". But no valid example. Only statements that there aren't any uses. Or statements that there are some rare use cases (again, without examples). So, the question is: "Which are the valid uses of goto in PHP". Answers for "Is goto evil" are not welcome and will get downvoted. Thanks :) Or does somebody have a link to an RFC where the decision is explained - I couldn't find one.

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• Using Rails, how can I set my primary key to not be an integer-typed column?

  - by Rudd Zwolinski

  I'm using Rails migrations to manage a database schema, and I'm creating a simple table where I'd like to use a non-integer value as the primary key (in particular, a string). To abstract away from my problem, let's say there's a table employees where employees are identified by an alphanumeric string, e.g. "134SNW". I've tried creating the table in a migration like this: create_table :employees, {:primary_key => :emp_id} do |t| t.string :emp_id t.string :first_name t.string :last_name end What this gives me is what seems like it completely ignored the line t.string :emp_id and went ahead and made it an integer column. Is there some other way to have rails generate the PRIMARY_KEY constraint (I'm using PostgreSQL) for me, without having to write the SQL in an execute call? NOTE: I know it's not best to use string columns as primary keys, so please no answers just saying to add an integer primary key. I may add one anyway, but this question is still valid.

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• Is there a ways to make google store coordinates in the android map?

  - by Pavel

  Hi. I'm in the middle of developing android app using google map. My question is - how to store coordinates with google map and display them later on? I know how to use canvas, how to draw it etc. but I want to store those coordinates with google map - just like with the google maps feature on internet. When I log in I can see points I've put on the map straight away. Can someone please tell me how to do that? There must be a way. Any answers greatly appreciated!

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• Setting Android webview initialScale prevents proper zooming

  - by Ryan

  Need: I want a webview to automatically be sized to fit the width of that particular page. I have Googled this and found several different suggestions. Most of them work. But then each of them effects zooming in / zooming out. What I'm looking for is a solution that accomplishes both. The webview is initially set to fill the screen, but then it allows the user to zoom in (with pinching) and zoom out. What I've Tried: mainView.getSettings().setLoadWithOverviewMode(true); mainView.getSettings().setUseWideViewPort(false); mainView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY); mainView.getSettings().setBuiltInZoomControls(true); mainView.getSettings().setSupportZoom(true); I have also tried setting mainView.setInitialScale(various percentages) Again, I have tried these in different orders, including some, not including others. Currently, if I use the above code and setInitialScale(65), it loads initially fine but then once you zoom in, you cannot zoom all the way back out. Does anyone know of the best practice to set initial scale to fit screen but fully allow zooming out and in? Why I Need It: I'm using a ViewFlipper in my Android app to load several webviews simultaneously. I have a touch sensor that allows sliding from left to right to switch between different webviews. The practical purpose of this is to show a grocery store's ads and allow the user to slide from page to page. The problem is that the API feed I'm using basically only allows me to load a URL for each page. So I have to use webviews.

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• overiding to_param of a nested attribute

  - by cbrulak

  I'm trying to create a perma link for a nested attribute. For example, look at the links for the answers in SO. I would like to do something similar in rails: I have Project model with multiple tasks and I would like to create a perma link to a task. The task can only viewed with the project, just like Q & A on SO. Ideally, i would do something like: task_helper.rb: def GetTaskURL project = Project.find(:project_id) return project_url(project,:html) + "#" + id end However, i get a method not found. So it seems the only way is to hard-code it: domain.com url + Projects/show/id.html#task.id Must be a better way?

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• PHP Store User Data without Sessions

  - by Sev

  Is there anyway to store users data such as userid, email, etc to be accessible from all pages of a website after they have logged in, but without using sessions or cookies? For example: class User { var $userid; var $username; var $email; .. methods.. } after they login at login.php $currentUser = new User($_POST['username']) now, how do I access $currentUser from another page, such as index.php if I shouldn't use sessions or cookies at all? so that I could do the following in index.php: if ($currentUser->userid > -1) { echo "you are logged in as: " . $currentUser->username; } else { echo "click here to login"; } i asked a similar question before, here, but the answers didn't fulfill my needs.

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• How to model file system operations with REST?

  - by massive

  There are obvious counterparts for some of file systems' basic operations (eg. ls and rm), but how would you implement not straightforwardly RESTful actions such as cp or mv? As answers to the question REST services - exposing non-data “actions” suggest, the preferred way of implementing cp would include GETting the resource, DELETing it and PUTting it back again with a new name. But what if I would need to do it efficiently? For instance, if the resource's size would be huge? How would I eliminate the superfluous transmission of resource's payload to client and back to the originating server? Here is an illustration. I have a resource: /videos/my_videos/2-gigabyte-video.avi and I want copy it into a new resource: /videos/johns_videos/copied-2-gigabyte-video.avi How would I implement the copy, move or other file system actions the RESTful way? Or is there even a proper way? Am I doing it all wrong?

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• Calculate difference in days ActiveSupport:TimeWithZone in the most "rubyish" style?

  - by Nick

  I have a feeling someone is going to point me to another question that answers this but I've been searching with no luck over this simple issue. I have a Activerecord with a datetime property. It returns as an ActiveSupport:TimeWithZone. I know I can't compare that to DateTime.now because that doesn't include a zone so I need to use Time.zone. Makes sense. What I'm wondering is stylewise is there a "cleaner" way to do this than subtracting and dividing the result by 86400? Here's what I do: ((Time.zone.now - myActiveRecord.visit_date)/86400).to_i Works but seems un-rubyish and I feel like I'm missing something. Should I be casting, comparing or converting some other route or is this really the typical way to do this in rails? Appreciate any tips or a link to a question that already covers this. Thank you

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• ID3DXAnimationController.RegisterAnimationSet - How exactly is this supposed to work?

  - by TrespassersW

  I have a mesh file that contains the skinned mesh that I want, and then a bunch of separate animation files that contain various AnimationSets. I'd like to have my program dynamically build the list of AnimationSets available to a mesh at run-time. I know I can combine these into one mesh file using MView, but that isn't practical for what I'm planning. I thought this would be pretty simple since ID3DXAnimationController.RegisterAnimationSet seems like it exists to do exactly this and the MView mesh viewer program can do this. But when I call RegisterAnimationSet using an animation from a different file, it fails with an unhelpful Invalid Call return value. Both the skinned mesh and the animation were exported from the same 3DS file, so I'm pretty certain that they are compatible. Here's my code: var anim : ID3DXAnimationSet; am : IDxAnimMesh; begin fAnim := ResMgr.AnimFetch('man01.x'); am := ResMgr.AnimFetch('a_rigtest.x'); DXCheck(am.Controller.GetAnimationSet(0,anim)); DXCheck(fAnim.Controller.RegisterAnimationSet(anim)); end; The file "man01.x" contains a default animation. And "a_rigtest.x" contains an animation exported from a different portion of the timeline fromt the same 3DS file. So it seems like they should be compatible. MView combines them with no trouble. Am I doing something wrong? Does anyone know how this is supposed to work? Or better yet, does anyone know where I could find the source code to MView? Any help would be appreciated.

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• Require help with program for edutainment game

  - by Ender

  I am working on a factorisation problem and for small numbers it is working well. I've been able to calculate the factors (getting the answers from Wolfram Alpha) for small numbers, like the one on the Wikipedia page (5959). Along with the Wikipedia page I have been following this guide. Once again, as my Math knowledge is pretty poor I cannot follow what I need to do next. EDIT: It finally works! I'll post the working code up here once I've got it fully working so that others in my predicament can learn from it.

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• How to transition from PHP to Python Django?

  - by ggfan

  Here's my background: Decent experience with PHP/MySql. Beginner's experience with OOP Why I want to learn Python Django? I gave in, based on many searches on SO and reading over some of the answers, Python is a great, clean, and structured language to learn. And with the framework Django, it's easier to write codes that are shorter than with PHP Questions Can i do everything in Django as in PHP? Is Django a "big" hit in web development as PHP? I know Python is a great general-purpose language but I'm focused on web development and would like to know how Django ranks in terms of web development.

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• SSRS 2008: How to do multiple values report?

  - by Shimrod

  Hi everyone, Right now I have an application which uses Reporting Services to render reports. This is working nicely, I call each report with a given value (e.g. a ClientId), and the report gets rendered correctly. However, what I'd like to do now is being able to send multiple ClientIDs to the report, and would like to get 1 pdf file with count(ClientsIDs) pages, each containing the report, according to the ClienID. How is that possible? I don't really know how to name what I want to do, so I don't really find answers on the net right now. Maybe someone has a tutorial for me? Thanks in advance !

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• Getting \ building latest NHibernate build

  - by Alex Yakunin

  I'd like to get the latest NHibernate build or build it by my own. The build available at SourceForge is dated by Nov 2009, although I see there was a lot of activity later, especially related to LINQ development. So what is the best option? I can: Get the latest source code and try to build it. Are there any instructions for this? Get one of latest builds shared by someone else. Are there any people maintaining such builds? Please note, that I'm not interested in 8-month old builds - I need the latest code for tests (LINQ, performance). I know there is a similar question, but it looks like top answers there are outdated.

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• The return value should be a list but doesn't return as expected?! - Python newbie

  - by user1432941

  Hi this must be a very simple solution that has eluded me this last hour. I've tried to build this test function where the return value of the test_cases list should match the values in the test_case_answers list but for some reason, test case 1 and test case 2 fail. When i print the return values for the test cases they return the correct answers, but for some reason test case 1 and test case 2 return False. Thanks for your help! import math test_cases = [1, 9, -3] test_case_answers = [1, 3, 0] def custom_sqrt(num): for i in range(len(test_cases)): if test_cases[i] >= 0: return math.sqrt(test_cases[i]) else: return 0 for i in range(len(test_cases)): if custom_sqrt(test_cases[i]) != test_case_answers[i]: print "Test Case #", i, "failed!" custom_sqrt(test_cases)

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• How can CMake be used to generate Makefiles with personalized commands?

  - by Rizo

  I like to keep my Makefiles flexible and multifunctional. One of the tasks I usually add to make command is tar, for example the following instruction does the job: tar: tar -cvf $(PROGNAME).tar $(SRCS) Makefile My question is: How can CMake be used to generate personalized commands like tar? I would like to see some code samples. For the full functionality it would be useful to create project's components and be able to use them as parameters. (Exempli gratia: archive only header files or some specific library). Thanks in advance for your answers!

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• Mericural "no username supplied" error on Mac

  - by theDuncs

  I've just installed Mercurial on my Mountain Lion Max (10.8) and on my first commit I'm getting the error: abort: no username supplied (see "hg help config") I've seen a load of answers which suggest I need to create or copy a file form a certain location and paste it into another location and add my username and email to the document. If that is the right thing to do: Where is the file I need to copy (or what is the file called that I need to create) Where do I put that file Do I just need to add the following two lines to the file? [ui] username = Your Name Thanks guys.

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• templated class : accessing derived normal-class methods

  - by user1019129

  I have something like this : class Container1 { public: method1() { ... } } class Container2 { public: method1() { ... } } template<class C = Container1> class X : public C { public: using C::method1(); ..... X(string& str) : C(str) {}; X& other_method() { method1(); ...; } } My question is why I have to use "using C::method1()", to be able to access the method.. Most of answers I found is for the case where templated-class inhering templated-class. Normally they mention using "this-", but this does not seem to work in this case. Can I do something else shorter... Also I'm suspecting the other error I'm getting is related to the same problem : no match call for (X<Container1>) (<std::string&>)

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• Python: How to quit CLI when stuck in blocking raw_input?

  - by christianschluchter

  I have a GUI program which should also be controllable via CLI (for monitoring). The CLI is implemented in a while loop using raw_input. If I quit the program via a GUI close button, it hangs in raw_input and does not quit until it gets an input. How can I immediately abort raw_input without entering an input? I run it on WinXP but I want it to be platform independent, it should also work within Eclipse since it is a developer tool. Python version is 2.6. I searched stackoverflow for hours and I know there are many answers to that topic, but is there really no platform independent solution to have a non-blocking CLI reader? If not, what would be the best way to overcome this problem? Thanks

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