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• Codeigniter initializing multiple times per page load

  - by Clayton

  I'm using Codeigniter for my application and have something wrong with my configuration. When I load a page, the framework initializes several times (see logs below). I have built other applications with Codeigniter and have never seen this behavior before. Log output: DEBUG - 2010-03-27 14:50:32 --> Config Class Initialized DEBUG - 2010-03-27 14:50:32 --> Hooks Class Initialized DEBUG - 2010-03-27 14:50:32 --> URI Class Initialized DEBUG - 2010-03-27 14:50:32 --> Router Class Initialized DEBUG - 2010-03-27 14:50:32 --> Output Class Initialized DEBUG - 2010-03-27 14:50:32 --> Input Class Initialized DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> Global POST and COOKIE data sanitized DEBUG - 2010-03-27 14:50:32 --> Language Class Initialized DEBUG - 2010-03-27 14:50:32 --> Loader Class Initialized DEBUG - 2010-03-27 14:50:32 --> Config file loaded: config/redux_auth.php DEBUG - 2010-03-27 14:50:32 --> Config file loaded: config/email.php DEBUG - 2010-03-27 14:50:32 --> Helper loaded: url_helper DEBUG - 2010-03-27 14:50:32 --> Helper loaded: form_helper DEBUG - 2010-03-27 14:50:32 --> Helper loaded: html_helper DEBUG - 2010-03-27 14:50:32 --> Database Driver Class Initialized DEBUG - 2010-03-27 14:50:32 --> Session Class Initialized DEBUG - 2010-03-27 14:50:32 --> Helper loaded: string_helper DEBUG - 2010-03-27 14:50:32 --> Helper loaded: file_helper DEBUG - 2010-03-27 14:50:32 --> Session routines successfully run DEBUG - 2010-03-27 14:50:32 --> Form Validation Class Initialized DEBUG - 2010-03-27 14:50:32 --> Model Class Initialized DEBUG - 2010-03-27 14:50:32 --> Controller Class Initialized DEBUG - 2010-03-27 14:50:32 --> Language file loaded: language/english/form_validation_lang.php DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> Config Class Initialized DEBUG - 2010-03-27 14:50:32 --> Hooks Class Initialized DEBUG - 2010-03-27 14:50:32 --> URI Class Initialized DEBUG - 2010-03-27 14:50:32 --> Router Class Initialized DEBUG - 2010-03-27 14:50:32 --> Output Class Initialized DEBUG - 2010-03-27 14:50:32 --> Input Class Initialized DEBUG - 2010-03-27 14:50:32 --> XSS Filtering completed DEBUG - 2010-03-27 14:50:32 --> Global POST and COOKIE data sanitized DEBUG - 2010-03-27 14:50:32 --> Language Class Initialized DEBUG - 2010-03-27 14:50:32 --> Loader Class Initialized ... This repeats three more times

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• Any software for pattern-matching and -rewriting source code?

  - by Steven A. Lowe

  I have some old software (in a language that's not dead but is dead to me ;-)) that implements a basic pattern-matching and -rewriting system for source code. I am considering resurrecting this code, translating it into a modern language, and open-sourcing the project as a refactoring power-tool. Before I go much further, I want to know if anything like this exists already (my google-fu is fanning air on this tonight). Here's how it works: the pattern-matching part matches source-code patterns spanning multiple lines of code using a template with binding variables, the pattern-rewriting part uses a template to rewrite the matched code, inserting the contents of the bound variables from the matching template matching and rewriting templates are associated (1:1) by a simple (unconditional) rewrite rule the software operates on the abstract syntax tree (AST) of the input application, and outputs a modified AST which can then be regenerated into new source code for example, suppose we find a bunch of while-loops that really should be for-loops. The following template will match the while-loop pattern: Template oldLoopPtrn int @cnt@ = 0; while (@cnt@ < @max@) { … @body@ ++@cnt@; } End_Template while the following template will specify the output rewrite pattern: Template newLoopPtrn for(int @cnt@ = 0; @cnt@ < @max@; @cnt@++) { @body@ } End_Template and a simple rule to associate them Rule oldLoopPtrn --> newLoopPtrn so code that looks like this int i=0; while(i<arrlen) { printf("element %d: %f\n",i,arr[i]); ++i; } gets automatically rewritten to look like this for(int i = 0; i < arrlen; i++) { printf("element %d: %f\n",i,arr[i]); } The closest thing I've seen like this is some of the code-refactoring tools, but they seem to be geared towards interactive rewriting of selected snippets, not wholesale automated changes. I believe that this kind of tool could supercharge refactoring, and would work on multiple languages (even HTML/CSS). I also believe that converting and polishing the code base would be a huge project that I simply cannot do alone in any reasonable amount of time. So, anything like this out there already? If not, any obvious features (besides rewrite-rule conditions) to consider? EDIT: The one feature of this system that I like very much is that the template patterns are fairly obvious and easy to read because they're written in the same language as the target source code, not in some esoteric mutated regex/BNF format.

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• Vim syntax highlighting not working

  - by victor

  I've followed all instructions given on this site with an empty .vim folder, but for some reason, python highlighting is not working on my system. It only highlights the comments and a few variables - nothing like the picture. http://concisionandconcinnity.blogspot.com/2009/07/vim-part-i-improved-python-syntax.html Is there some other setting I am forgetting?

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• Iterating over two dimension array and knowing current position

  - by Nuno Furtado

  I am trying to iterate a multidimension array created with the following line To iterate i'm using the following code visiblematrix= Array.new (10) {Array.new(10){0}} But this doesn't allow me to know the current x,y position while iterating. how can i find it out without resorting to temporary variables visiblematrix.each do |x| x.each do |y| puts y end end

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• how can I prevent my SESSION to be overwritten on pageLoad of my MasterPage

  - by Darkyo

  I'm new to asp world, and I have to keep my new job :) Switching form php to asp.net 3.5 (never used before). What would be the best practice for storing a SESSION variable in my project ? How can I prevent my SESSION to be overwritten if my initialisation code is in the onPageLoad method of my MasterPage ? My variables keeps beeing overwritten, please someone help me and tell me if there is any other solution than dealing with this pageLoad problem. Thank you all

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• failsafe jQuery code

  - by David

  Can anyone explain what the jquery documentation is exactly referring to with this statement: "the argument to write failsafe jQuery code using the $ alias, without relying on the global alias" when referring to using the following: jQuery(function($) { }); I have been using jquery for a while now so understand what this code is doing to a certain extent but the phrase used in the documentation about writing failsafe jquery code puzzles me and i am unsure whether it is important or not.

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• Oracle PL/SQL: Performance of CLOB data type in PL/SQL

  - by drupalspring

  If I use many CLOB variables in the PL/SQL stored procedure to store many long length string , are there any performance issues? Is the length of the CLOB is also variable? Are there any known limitations/disadvantages for CLOB instead using varchar2 and long?

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• MSBuild Newbie Question

  - by Wallace

  I'm rather new to MS Build and have been reviewing many of the built in target files that ship with Visual Studio. I have seen variables passed a few different ways and am not quite sure of the differences... $(...) @(...) %(...) Thanks in advance.

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• Use of @keyword in C# -- bad idea?

  - by Robert Fraser

  In my naming convention, I use _name for private member variables. I noticed that if I auto-generate a constructor with ReSharper, if the member is a keyword, it will generate an escaped keyword. For example: class IntrinsicFunctionCall { private Parameter[] _params; public IntrinsicFunctionCall(Parameter[] @params) { _params = @params; } } Is this generally considered bad practice or is it OK? It happens quite frequently with @params and @interface.

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• How do I use objc_setAssociatedObject/objc_getAssociatedObject inside an object?

  - by leo

  If I use objc_setAssociatedObject/objc_getAssociatedObject inside a category implementation to store a simulated instance variable in a setter method, how would I access the key in the getter method since any variables declared in the setter method would be outside the scope of the getter method?

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• Using a C file in an xcode/objective-c project

  - by Minar

  I am making an iPhone app. I have a code that is in C. The C code contains a lot of pointers and global variables. I want to use this C code in my objective-c project. Can anybody please help me with this?

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• PHP mysqli wrapper: passing by reference with __call() and call_user_func_array()

  - by Dave

  Hi everyone. I'm a long running fan of stackoverflow, first time poster. I'd love to see if someone can help me with this. Let me dig in with a little code, then I'll explain my problem. I have the following wrapper classes: class mysqli_wrapper { private static $mysqli_obj; function __construct() // Recycles the mysqli object { if (!isset(self::$mysqli_obj)) { self::$mysqli_obj = new mysqli(MYSQL_SERVER, MYSQL_USER, MYSQL_PASS, MYSQL_DBNAME); } } function __call($method, $args) { return call_user_func_array(array(self::$mysqli_obj, $method), $args); } function __get($para) { return self::$mysqli_obj->$para; } function prepare($query) // Overloaded, returns statement wrapper { return new mysqli_stmt_wrapper(self::$mysqli_obj, $query); } } class mysqli_stmt_wrapper { private $stmt_obj; function __construct($link, $query) { $this->stmt_obj = mysqli_prepare($link, $query); } function __call($method, $args) { return call_user_func_array(array($this->stmt_obj, $method), $args); } function __get($para) { return $this->stmt_obj->$para; } // Other methods will be added here } My problem is that when I call bind_result() on the mysqli_stmt_wrapper class, my variables don't seem to be passed by reference and nothing gets returned. To illustrate, if I run this section of code, I only get NULL's: $mysqli = new mysqli_wrapper; $stmt = $mysqli->prepare("SELECT cfg_key, cfg_value FROM config"); $stmt->execute(); $stmt->bind_result($cfg_key, $cfg_value); while ($stmt->fetch()) { var_dump($cfg_key); var_dump($cfg_value); } $stmt->close(); I also get a nice error from PHP which tells me: PHP Warning: Parameter 1 to mysqli_stmt::bind_result() expected to be a reference, value given in test.php on line 48 I've tried to overload the bind_param() function, but I can't figure out how to get a variable number of arguments by reference. func_get_args() doesn't seem to be able to help either. If I pass the variables by reference as in $stmt->bind_result(&$cfg_key, &$cfg_value) it should work, but this is deprecated behaviour and throws more errors. Does anyone have some ideas around this? Thanks so much for your time.

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• Sharing $_SESSION varaibles across subdomains using PHP

  - by scott

  Hi, I am trying to share the contents of the session variable across two subdomains but for some reason it is not working. The sessionid is exactly the same on both subdomains but the variables aren't available. I can achieve this with Cookies and this s working but would rather use the values in the session. Here is how I setting the domain for the session: Thanks, Scott

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• use Data Annotation to my Linq to SQL

  - by Khalid Omar

  i have a mvc web project and i'm using linq to sql i'm using dataannotaion like this public class ClientValidation { [Required] public string name1st { get; set; } } then in the linq class i add that above client class [global::System.Data.Linq.Mapping.TableAttribute(Name = "dbo.Client")] [MetadataType(typeof(ClientValidation))] public partial class Client : INotifyPropertyChanging, INotifyPropertyChanged { } every thing is going ok the question is when i re generate the linq when i add table or change any thing in database i need to rewrite [MetadataType(typeof(ClientValidation))] is there any other method to enable me regenerate the model and keep the data annotation as it

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• Can I retain a Google apps session token permanently for a specific user who logs into my google app

  - by Ali

  Hi guys, is it possible to retain upon authorization a single session token for a user who signs into my gogle application. CUrrently my application seems to every now and then require the user to authenticate into google apps. I think it has to do with session dying out or so. I have the following code: function getCurrentUrl() { global $_SERVER; $php_request_uri = htmlentities(substr($_SERVER['REQUEST_URI'], 0, strcspn($_SERVER['REQUEST_URI'], "\n\r")), ENT_QUOTES); if (isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on') { $protocol = 'https://'; } else { $protocol = 'http://'; } $host = $_SERVER['HTTP_HOST']; if ($_SERVER['SERVER_PORT'] != '' && (($protocol == 'http://' && $_SERVER['SERVER_PORT'] != '80') || ($protocol == 'https://' && $_SERVER['SERVER_PORT'] != '443'))) { $port = ':' . $_SERVER['SERVER_PORT']; } else { $port = ''; } return $protocol . $host . $port . $php_request_uri; } function getAuthSubUrl($n=false) { $next = $n?$n:getCurrentUrl(); $scope = 'http://docs.google.com/feeds/documents https://www.google.com/calendar/feeds/ https://spreadsheets.google.com/feeds/ https://www.google.com/m8/feeds/ https://mail.google.com/mail/feed/atom/'; $secure = false; $session = true; //echo Zend_Gdata_AuthSub::getAuthSubTokenUri($next, $scope, $secure, $session);; return Zend_Gdata_AuthSub::getAuthSubTokenUri($next, $scope, $secure, $session).(isset($_SESSION['domain'])?'&hd='.$_SESSION['domain']:''); } function _regenerate_token() { global $BASE_URL; if(!$_SESSION['token']) { if(isset($_GET['token'])): $_SESSION['token'] = Zend_Gdata_AuthSub::getAuthSubSessionToken($_GET['token']); return; else: _regenerate_sessions(); _redirect(getAuthSubUrl($BASE_URL . '/index.php?'.$_SERVER['QUERY_STRING'])); endif; } } _regenerate_token(); I know I'm doing it all wrong here and I don't know why :( I have a CONSUMER SECRET code but only use it whereever I need to access a google service. However something is wrong with my authentication as the user has to periodically 'grant access to my application' and reauthorise himself... help please

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• Wordpress databse insert() and update() - using NULL values

  - by pygorex1

  Wordpress ships with the wpdb class which handles CRUD operations. The two methods of this class that I'm interested in are the insert() (the C in CRUD) and update() (the U in CRUD). A problem arises when I want to insert a NULL into a mysql database column - the wpdb class escapes PHP null variables to empty strings. How can I tell Wordpress to use an actual MySQL NULL instead of a MySQL string?

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• javascript: why to "sign-prefix" a variable?

  - by harald

  hello, i'm currently looking at a little 3rd-party javascript library and i see a lot of "sign-prefixed" variables in it: function_call(+value); i know, that you can swap the sign, if you prefix a variable with '-', but why to prefix something with a '+' -- it doesn't do anything to the value, no? thanks in advance!

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• linq2sql: singleton or using, best practices

  - by zerkms

  what is the preferred practice when linq2sql using (in asp.net mvc applications): to create "singleton" for DataContext like: partial class db { static db _db = new db(global::data.Properties.Settings.Default.nanocrmConnectionString, new AttributeMappingSource()); public static db GetInstance() { return _db; } } or to retrieve new instance when it needed within using: using (db _db = new db()) { ... } the usage of using brings some limitations on code. so I prefer to use singleton one. is it weird practice?

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• Create big buffer on a pic18f with microchip c18 compiler

  - by acemtp

  Using Microchip C18 compiler with a pic18f, I want to create a "big" buffer of 3000 bytes in the program data space. If i put this in the main() (on stack): char tab[127]; I have this error: Error [1300] stack frame too large If I put it in global, I have this error: Error - section '.udata_main.o' can not fit the section. Section '.udata_main.o' length=0x0000007f How to create a big buffer? Do you have tutorial on how to manage big buffer on pic18f with c18?

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• Using ruby's OptionParser to parse sub-commands

  - by rampion

  I'd like to be able to use ruby's OptionParser to parse sub-commands of the form COMMAND [GLOBAL FLAGS] [SUB-COMMAND [SUB-COMMAND FLAGS]] like: git branch -a gem list foo I know I could switch to a different option parser library (like Trollop), but I'm interested in learning how to do this from within OptionParser, since I'd like to learn the library better. Any tips?

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• How can I switch between 2 Connection Strings in my Web.Config (Activate one for DBML)

  - by Alex

  Hello! I have two connection strings (both in Web.Config: CS_Local and CS_Production) for my DBML (Linq to SQL). In my Global.Asax/Application_Start I run some production preparation methods if the request is non-local (!HttpContext.Current.Request.IsLocal). Within that part, I'd also like to change the current connection string used by my DBML from the standard CS_Local to CS_Production. How would I do that? Some help please..

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• How could a quine in my programming language look?

  - by ads

  I have created a turing-complete programming language (already proven) so it must be possible to write a quine for it, right? But all quines I know store their source code in a string and then replace a special character in it using something like chr and ord. My language only has the following Basic arithmetics Int and string types Variables == operator Conditional gotos I have no idea how I could write a quine as I have no real string manipulation available, I can only output constant strings. Yet, it is 100% turing-complete.

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• parsing a string based on specified identifiers

  - by jml

  Let's say that I have the following text: input = "one aaa and bbb two bbbb er ... // three cccc" I would like to parse this into a group of variables that contain criteria = ["one", "two", "three"] v1,v2,v3 = input.split(criteria) I know that the example above won't work, but is there some utility in python that would allow me to use this sort of approach? I know what the identifiers will be in advance, so I would think that there has got to be a way to do this... Thanks for any help, jml

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• Should Application_End fire on an automatic App Pool Recycle?

  - by Laramie

  I have read this, this, this and this plus a dozen other posts/blogs. I have an ASP.Net app in shared hosting that is frequently recycling. We use NLog and have the following code in global.asax void Application_Start(object sender, EventArgs e) { NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger(); logger.Debug("\r\n\r\nAPPLICATION STARTING\r\n\r\n"); } protected void Application_OnEnd(Object sender, EventArgs e) { NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger(); logger.Debug("\r\n\r\nAPPLICATION_OnEnd\r\n\r\n"); } void Application_End(object sender, EventArgs e) { HttpRuntime runtime = (HttpRuntime)typeof(System.Web.HttpRuntime).InvokeMember("_theRuntime", BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.GetField, null, null, null); if (runtime == null) return; string shutDownMessage = (string)runtime.GetType().InvokeMember("_shutDownMessage", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.GetField, null, runtime, null); string shutDownStack = (string)runtime.GetType().InvokeMember("_shutDownStack", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.GetField, null, runtime, null); ApplicationShutdownReason shutdownReason = System.Web.Hosting.HostingEnvironment.ShutdownReason; NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger(); logger.Debug(String.Format("\r\n\r\nAPPLICATION END\r\n\r\n_shutDownReason = {2}\r\n\r\n _shutDownMessage = {0}\r\n\r\n_shutDownStack = {1}\r\n\r\n", shutDownMessage, shutDownStack, shutdownReason)); } void Application_Error(object sender, EventArgs e) { NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger(); logger.Debug("\r\n\r\nApplication_Error\r\n\r\n"); } Our log file is littered with "APPLICATION STARTING" entries, but neither Application_OnEnd, Application_End, nor Application_Error are ever fired during these spontaneous restarts. I know they are working because there are entries for touching the web.config or /bin files. We also ran a memory overload test and can trigger an OutOfMemoryException which is caught in Application_Error. We are trying to determine whether the virtual memory limit is causing the recycling. We have added GC.GetTotalMemory(false) throughout the code, but this is for all of .Net, not just our App´s pool, correct? We've also tried var oPerfCounter = new PerformanceCounter(); oPerfCounter.CategoryName = "Process"; oPerfCounter.CounterName = "Virtual Bytes"; oPerfCounter.InstanceName = "iisExpress"; logger.Debug("Virtual Bytes: " + oPerfCounter.RawValue + " bytes"); but don't have permission in shared hosting. I've monitored the app on a dev server with the same requests that caused the recycles in production with ANTS Memory Profiler attached and can't seem to find a culprit. We have also run it with a debugger attached in dev to check for uncaught exceptions in spawned threads that might cause the app to abort. My questions are these: How can I effectively monitor memory usage in shared hosting to tell how much my application is consuming prior to an application recycle? Why are the Application_[End/OnEnd/Error] handlers in global.asax not being called? How else can I determine what is causing these recycles? Thanks.

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• Why is the volatile qualifier used through out std::atomic?

  - by Caspin

  From what I've read from Herb Sutter and others you would think that volatile and concurrent programming were completely orthogonal concepts, at least as far as C/C++ are concerned. However, in GCC c++0x extension all of std::atomic's member functions have the volatile qualifier. The same is true in Anthony Williams's implementation of std::atomic. So what's deal, do my atomic<> variables need be volatile or not?

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