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  • [PHP] Singleton class and using inheritance

    - by Saif Bechan
    I have am working on a web application that makes use of helper classes. These classes hold functions to various operation such as form handling. Sometimes I need these classes at more than one spot in my application, The way I do it now is to make a new Object. I can't pass the variable, this will be too much work. I was wondering of using singleton classes for this. This way I am sure only one instance is running at a time. My question however is when I use this pattern, should I make a singleton class for all the objects, this would b a lot of code replication. Could I instead make a super class of superHelper, which is a singleton class, and then let every helper extend it. Would this sort of set up work, or is there another alternative? And if it works, does someone have any suggestions on how to code such a superHelper class. Thank you guys

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  • F# vs Haskell vs Lisp - which language to learn?

    - by empi
    I've heard a lot about functional programming languages and I'm willing to learn one. I guess it will be mostly for fun, however, I hope it will improve my programming skills. I have mostly C#/.NET background, so my first choice is to learn F# (because of .NET and familiarity with Visual Studio). On the on other hand, I wonder if F# has features like Lisp macros or Haskell higher order functions. Could you compare F#, Haskell and Lisp? Which one will be the language of your choice?

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  • How to get rid of "Uncaught SoapFault exception: [Client] looks like we got no XML document in..." e

    - by Eedoh
    Hello I'm trying to develop business logic for a dynamic site using nusoap on server side (because I need wsdls, and PHP SOAP extension can't generate wsdls), and PHP SOAP extenstion on client side. However, I can't get even login and getRole functions right. When i try to invoke client, I get following message Uncaught SoapFault exception: [Client] looks like we got no XML document in [some paths]... Wsdl does exist on server side, and client does read it (when I put wrong url for wsdl, I get an error). Can anyone help??

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  • How to rollback in EF4?

    - by Jaxidian
    In my research about rolling back transactions in EF4, it seems everybody refers to this blog post or offers a similar explanation. In my scenario, I'm wanting to do this in a unit testing scenario where I want to rollback practically everything I do within my unit testing context to keep from updating the data in the database (yeah, we'll increment counters but that's okay). In order to do this, is it best to follow the following plan? Am I missing some concept or anything else major with this (aside from my SetupMyTest and PerformMyTest functions won't really exist that way)? using (var ts = new TransactionScope()) { // Arrange SetupMyTest(context); // Act PerformMyTest(context); var numberOfChanges = context.SaveChanges(false); // if there's an issue, chances are that an exception has been thrown by now. // Assert Assert.IsTrue(numberOfChanges > 0, "Failed to _____"); // transaction will rollback because we do not ever call Complete on it }

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  • PHP - Alternatives to runkit for intercepting method calls

    - by Radu
    I have some very test-unfriendly code (to say the least) that I need to test. Refactoring unfortunately is not an option. I have to test the code as it is, without the possibility of changing it. To do that, I was thinking of intercepting function calls and dynamically change what they do so I can run my tests, as I need some functions and methods to return known values, and I need others that make requests, connect to the database, etc, to stop doing that and return what I need them to return. Is there any way to do this without runkit_method_redefine(), which is preferably not "EXPERIMENTAL" and still maintained? Maybe an alternative to runkit? Maybe a better way? Edit: will use PHPUnit's test doubles and PHP 5.3.2's features for making private methods accessible, if I need that functionality.

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  • asp.net mvc making ajax call jason

    - by mazhar kaunain baig
    Controller: public ActionResult EditOrganizationMeta(int id) { } [HttpPost] [ValidateInput(false)] public ActionResult EditOrganizationMeta(FormCollection collection) { } View: function DoAjaxCall() { var url = '<%= Url.Action("EditOrganizationMeta", "Organization") %>'; //url = url + '/' + dd; $.post(url, null, function(data) { alert(data); }); } <input type="button" name="something" value="Save" onclick="DoAjaxCall()" /> how would i make the ajax call , i have basically two functions with the same name EditOrganizationMeta,Do the form collection will be passed automatically.Basic confusion is regarding the method call Ok i made a call by ajax but after that My This code is not running anymore [HttpPost] [ValidateInput(false)] public ActionResult EditOrganizationMeta(FormCollection collection) { int OrganizationId = 11; string OrganizationName = "Ministry of Interior"; try { string ids = Request.Params // **getting error here some sequence is not there** .Cast<string>() .Where(p => p.StartsWith("button")) .Select(p => p.Substring("button".Length)) .First(); String RealValueOfThatControl = collection[ids]; } } catch { } return RedirectToAction("EditOrganizationMeta", new { id = OrganizationId }); } I think that there is no post

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  • Problem using SQLDMO/Vb6 against SQL2008

    - by E.J. Brennan
    I have a client, that uses SQLDMO for a portion of a custom application that was written against SQL 2000, and they recently upgraded to SQL2008. The majority of the app still runs fine (doesn't use SQLDMO), but the admin functions which rely on SQLDMO stopped working. I installed the SQL2005 backward compatibility pack, and now SQLDMO partially works, i.e. I can run "select" type queries, but any "Update" queries fail with the error message: to connect to the server you must use SQL Server management studio or sql server management objects (SMO) Any thoughts? Should the backward compatibility pack give me ALL the functionality back, or is this a known issue? BTW: I realize SQLDMO has been deprecated and will go away next release, none-the-less I need to do what I can to solve the problem at hand.

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  • Problem in apache2 with mod rewrite when setting rules in .conf files instead of .htaccess

    - by gonzlikes
    Hi, Because of weird security policies of my hosting provider I have to define my rewrite rules in /etc/apache2/conf.d/examplesite.conf instead of writing them on an .htaccess on the www folder of that site. What I'm trying to do is setup a Wordpress Mu server (http://mu.wordpress.org/forums/topic/17349 ) and so far its working on a 50%. The main blog loads perfectly but other sub blogs (located for example at www.example.com/blog2 ) don't. I'm guessing the problem is that the rewrite rules behave differently when declared at .conf files for each virtual host instead of using .htaccess files. Has anybody else had this problem? How can you fix it?

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  • Anyone had any experience with *.pcap manipulation libs?

    - by zxcvbnm
    I'm using the SharpPcap + PacketDotNet libraries to process some .pcap files and came across a bug in the way the timestamps are calculated. Take this Timeval property, which is something along these lines: PosixTimeval Timeval { DateTime Date; ulong Seconds; ulong MicroSeconds; } The problem is as follows: Suppose you have a trace open in Wireshark with one of the packets with a timestamp of "0.002". Once you open it within one of your programs, it retrieves the packet and its Timeval is setup such that Seconds = 0 and MicroSeconds = 002 = 2. This is done under the hood, so there is no way to avoid it as far as I can tell. My question is if that problem is common to other libraries (and maybe all of them?) who manipulate the pcap file format, which I think are built around the same collection of c/c++ functions, or if this is a problem only with the ones I'm using.

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  • Installing flex on Mac Parallels

    - by Ali Syed
    Hello folks, I am trying to install Flex 3 on my Windows 7 Virtual machine (parallels desktop) on my Mac Pro. The problem seems to be some sort of conflict between the copy of Flex 3 Builder installed on Mac OS X. The installer tries to install Flex in x:/Program Files/Adobe/Flex Builder 3/ but since Parallels Desktop connects all directories, there resides the Flex Builder 3 installation of MAC. I get this error Log: !SESSION 2010-04-22 16:09:23.031 ----------------------------------------------- eclipse.buildId=unknown java.version=1.5.0_11 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE Framework arguments: -application org.eclipse.update.core.standaloneUpdate -command install -from file:\C:\Program Files\Adobe\Flex Builder 3 Windose\com.adobe.flexbuilder.update.site/ -featureId com.adobe.flexbuilder.feature.standalone -version 3.0.214193 Command-line arguments: -application org.eclipse.update.core.standaloneUpdate -command install -from file:\C:\Program Files\Adobe\Flex Builder 3 Windose\com.adobe.flexbuilder.update.site/ -featureId com.adobe.flexbuilder.feature.standalone -version 3.0.214193 !ENTRY org.eclipse.update.core 4 0 2010-04-22 16:09:29.187 !MESSAGE Cannot install featurecom.adobe.flexbuilder.feature.standalone 3.0.214193

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  • how to limit network bandwidth for testing (win7, virtualbox)

    - by bao
    Hi! I develop ASP.NET application on Windows 7 machine (IIS 7.5). I need to limit network bandwidth to test my AJAX GUI. What kind of software could you recommend for those cases: a) I deploy my app to the remote IIS box and try to limit bandwidth of my network connection in Windows 7. b) I deploy my app to the IIS installed on Win7 and try to test my app from Virtualbox machine via virtual network. So, any opinions?

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  • Is Objective C fast enough for DSP/audio programming

    - by morgancodes
    I've been making some progress with audio programming for iPhone. Now I'm doing some performance tuning, trying to see if I can squeeze more out of this little machine. Running Shark, I see that a significant part of my cpu power (16%) is getting eaten up by objc_msgSend. I understand I can speed this up somewhat by storing pointers to functions (IMP) rather than calling them using [object message] notation. But if I'm going to go through all this trouble, I wonder if I might just be better off using C++. Any thoughts on this?

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  • Cygwin socket & thread & other programming issues (some question about Cygwin)

    - by SjB
    I have some question about cygwin : Can I use Cygwin develop socket based code? Does Cygwin have read() and write() functions that work with file descriptors? Can I use Pthread library in Cygwin? Does code that compiles in Cygwin also compile in Linux without any change or with little change? Will an executable file that built by Cygwin run in Linux ? Why does Cygwin not need the linker option -lpthread when I use pthread library? why in #include <iostream> don't I need to use using namespace std; ? Can I work with QT in Cygwin? If so, How?

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  • EOF error encountered while converting bytearray to bitmapdata

    - by intoTHEwild
    I am using var bitmapdata:BitmapData=new BitmapData(); var pixels:Bytearray=new Bytearray(); pixels = rleDecodePixles(); bitmapdata.setPixels(bitmapdata.rect, pixels); In the 4th line in the code above i am getting "Error: Error #2030: End of file was encountered." I checked the length of the pixels object which is 4 times the width*height of the rect object. Given that setPixels() functions reads unsigned int from bytearray and sets that value to pixels, I think it should work. But I have no clue why this wont work. The pixels object is filled after RLE decoding of the data which i get from a server. Is there any work around or any other method which I could try to use. The loader class wont work as the data that I get from the server is not in any of the recognized format. Any help is greatly appreciated. Shrikant Thanks.

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  • "Executing SQL directly; no cursor" error when using SCOPE_IDENTITY/IDENT_CURRENT

    - by Chris
    There wasn't much on google about this error, so I'm askin here. I'm switching a PHP web application from using MySQL to SQL Server 2008 (using ODBC, not php_mssql). Running queries or anything else isn't a problem, but when I try to do scope_identity (or any similar functions), I get the error "Executing SQL directly; no cursor". I'm doing this immediately after an insert, so it should still be in scope. Running the same insert statement then query for the insert ID works fine in SQL Server Management Studio. Here's my code right now (everything else in the database wrapper class works fine for other queries, so I'll assume it isn't relevant right now): function insert_id(){ return $this->query_first("SELECT SCOPE_IDENTITY() as insert_id"); } query_first being a function that returns the first result from the first field of a query (basically the equivalent of execute_scalar() on .net). The full error message: Warning: odbc_exec() [function.odbc-exec]: SQL error: [Microsoft][SQL Server Native Client 10.0][SQL Server]Executing SQL directly; no cursor., SQL state 01000 in SQLExecDirect in C:[...]\Database_MSSQL.php on line 110

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  • how to install posix in php

    - by Nizzy
    posix does not appear when I run php -m cmd, however, I see it from the phpinfo() –enable-posix=shared on Linux with Plesk 9. Basically, I can't use posix_*() functions as described at http://www.php.net/manual/en/ref.posix.php this shows doesn't exists: if (function_exists(‘posix_getuid’)) { echo “posix_getuid available”; } else { echo “posix_getuid not available”; // this prints in my server. } could someone show me how to install it? thank you [PHP Modules] bz2 calendar ctype curl date dbase dom exif fileinfo filter ftp gd geoip gettext gmp hash iconv imap ionCube Loader json libxml mbstring mcrypt memcache mhash mysql mysqli openssl pcntl pcre PDO pdo_mysql pdo_sqlite readline Reflection session shmop SimpleXML sockets SPL sqlite standard tokenizer wddx xml xmlreader xmlwriter xsl zip zlib

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  • C++ _beginthreadex in cygwin

    - by Hugh
    Hello all, I am aware that _beginthreadex is part of the MSCVRT functions and therefore not accessible via Cygwin/MinGW uintptr_t _beginthreadex( void *security, unsigned stack_size, unsigned ( __stdcall *start_address )( void * ), void *arglist, unsigned initflag, unsigned *thrdaddr ); However, _beginthreadex does call upon CreateThread(). HANDLE CreateThread( LPSECURITY_ATTRIBUTES secAttr, SIZE_T stackSize, LPTHREAD_START_ROUTINE threadFunc, LPVOID param, DWORD flags, LPDWORD threadID ); However, does anyone have a wrapper or a URL to a library that is compatible with Cygwin/WinGW. Or can offer some advice? As this is the last little piece of moving from VSutdio Project over to makefiles for Windows/Darwin/Linux. Thanks.

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  • Sub Rectangle or ROI problem in opencv

    - by iva123
    Hi, I'm trying to convert this c code(http://nashruddin.com/OpenCV_Eye_Detection) to the python code, but in c style, he used cvROI thing, since ROI functions are not supported by python-opencv, I tried cvGetSubRect so Here is the eye detection part of the code : eye_region = cvGetSubRect(image,cvRect(face.x,int(face.y + (face.height/4)),face.width,int(face.height/2))) eyes = cvHaarDetectObjects(eye_region,eyeCascade,memo,1.15,3,0,cvSize(25,15)) for e in eyes: cvRectangle(image, cvPoint( int(e.x), int(e.y)), cvPoint(int(e.x + e.width), int(e.y + e.height)), CV_RGB(0, 255, 0), 1, 8, 0) return image; When I run this code, It draws rectangles irrelevant places. I thought, eye_region coordinates are wrong, and tried some coordinates, but it didn't work. Any idea ? Note :Face detection method works very well, and it's code is same with the eye detection method.

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  • [PHP] function().function() VS function()function()

    - by kwokwai
    Hi all, I was writing a foreach Loop in PHP5. Here is the script: foreach(range('A','Z') as $char) // line 1 { // line 2 echo strtoupper($char)strtolower($char); // line 3 } // line 4 And I got this error message Parse error: parse error, unexpected T_STRING in testing.php on line 3 I spent almost an hour to figure out I should add a dot between two functions like this: echo strtoupper($char).strtolower($char); So I can't tell the difference between these two lines of codes: echo strtoupper($char).strtolower($char); echo strtoupper($char)strtolower($char);

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  • How to modify IIS handler mapping permissions via Wix or a Custom Action

    - by Finch
    Hi, I'm using Wix to create an installer for a Silverlight application. When I install the application the virtual directory that has been created has the execute permission checked for the *.dll handler mapping (IIS 7 Web site VDir Handler Mappings *.dll Edit Feature Permissions Execute). When I browse to the application it cannot download its satellite assemblies in ClientBin. If I uncheck the execute permission in IIS the handler becomes disabled and the application now works. I don't want to have to do this manually. Does anybody know how to modify the handler mapping permissions in Wix or a Custom Action? Thanks

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  • Arguments of using WCF/OData as access layer instead of EF/L2S/nHibernate directly

    - by Carl Hörberg
    We develop mostly low traffic but highly specialized web applications. Normally we use L2S, EF or nHibernate as access layer and then throws Asp.Net MVC to it and in which for normal crud operations we query the ISession/DataContext directly but for more advanced functions/side effects we put it in a some kind of service layer. Now, i was think about publishing the data through OData (WCF Data Service) and query that from the controllers (or even from jQuery when the a good template engine shows up) and publish the service operations through a WCF service (or as custom methods on the WCF Data Service?). What advantages/disadvantages does this architecture poses? Do I gain something except higher complexity and latency? Better separations of concerns (or is it just a illusion)?

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  • get image from iphone, using phonegap camera api

    - by udhaya
    I'm new to Xcode and iPhone apps. I want to select an image from iPhone (camera or library) and send to php via ajax. http://wiki.phonegap.com/iPhone:-Camera-API I'm using the phonegap framework, Xcode iPhone SDK version 3.1.x. On clicking button it calls function with parameter 0 or 1, but it does not initialize camera or display the library. I checked the simulator virtual phone; there is no icon for camera, but the pictures album is there. I used the same code as in the above link. What do I do, what and how to check? any other functions to get photos using phonegap?

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  • Higher-order type constructors and functors in Ocaml

    - by sdcvvc
    Can the following polymorphic functions let id x = x;; let compose f g x = f (g x);; let rec fix f = f (fix f);; (*laziness aside*) be written for types/type constructors or modules/functors? I tried type 'x id = Id of 'x;; type 'f 'g 'x compose = Compose of ('f ('g 'x));; type 'f fix = Fix of ('f (Fix 'f));; for types but it doesn't work. Here's a Haskell version for types: data Id x = Id x data Compose f g x = Compose (f (g x)) data Fix f = Fix (f (Fix f)) -- examples: l = Compose [Just 'a'] :: Compose [] Maybe Char type Natural = Fix Maybe -- natural numbers are fixpoint of Maybe n = Fix (Just (Fix (Just (Fix Nothing)))) :: Natural -- n is 2 -- up to isomorphism composition of identity and f is f: iso :: Compose Id f x -> f x iso (Compose (Id a)) = a

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  • calling Qt's QGraphicsView::setViewport with a custom QGLWidget

    - by mos
    I've derived from QGLWidget before, like so: class MyGLWidget : public QGLWidget { public: // stuff... virtual void initializeGL() { /* my custom OpenGL initialization routine */ } // more stuff... }; However, I find that if I try to initialize a QGraphicsView with my custom QGLWidget as the viewport, initializeGL doesn't get called (setting a breakpoint within the Qt library, neither does QGLWidget::initializeGL() when created plain). // initializeGL, resizeGL, paintGL not called ui.graphicsView->setViewport(new MyGLWidget(QGLFormat(QGL::DoubleBuffer))); // initializeGL, resizeGL, paintGL *still* not called ui.graphicsView->setViewport(new QGLWidget(QGLFormat(QGL::DoubleBuffer))); Where is the correct location to place the code that currently resides in MyGLWidget::initializeGL()?

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  • Symfony dynamic subdomains

    - by Jamie
    Hi all, I'm trying to match subdomains to a customer id in symfony. i.e. i have customer1.example.com and customer2.example.com Domains are stored in a table. When a user goes to customer1.example.com, I would like to get the subdomain, look up the domain name in the database, once matched, it will then deploy the app config for that customer and then store the customer_Id in a global attribute so i know exactly which customer I'm dealing with througout the whole application. The virtual host will have the relevant wildcard servername. Have you managed to achieve this, and if so, how? If not, any ideas would be a great help! I'm thinking about using a filter to do it. :-)

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