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• PHP won't parse MySQL statements

  - by Hussain

  I just installed Apache 2.2.15/PHP 5.3.2/MySQL 5.1.44 on Windows Vista. Apache is working fine, PHP is functional, and MySQL works on the CLI. However, when I try to access MySQL via PHP, I get an error (Fatal error: Call to undefined function mysql_connect()). extension=php_mysql.dll and extension=php_mbstring.dll are uncommented in the php.ini file, and PHP is in the system path. There is no libmysql.dll in either the top level PHP directory or the ext directory. There's a libmySQL.dll file in the MySQL bin directory (which is also in the system path); I tried renaming it, but that doesn't do anything Also, in case anyone wants to know, I originally installed PHP using the MSI installer, but it was missing some DLLs, so I installed from the zip file. I think I've exhausted all my options. Any help on this problem would be very appreciated. Thanks in advance.

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• Devise email confirmation from localhost

  - by John

  I am able to get the registration confirmation email to send out in deployment on Heroku, but when I try a registration on localhost:3000, I get the following error: undefined local variable or method `confirmed_at' for #<User:0xb67a1ff0> In my config/environments/production.rb file I have: config.action_mailer.default_url_options = { :host => 'xxxx.com' } And I have an initializer file with the following format: ActionMailer::Base.smtp_settings = { :user_name => "[email protected]", :password => "xxxxxx", :domain => "xxxx.com", :address => "smtp.sendgrid.net", :port => "xxx", :authentication => :plain, :enable_starttls_auto => true }; What settings do I need to get the localhost working? Thanks! John

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• Abstract classes in shared library

  - by JTom

  Hi, I have an ordinary abstract class that has couple of pure virtual methods. The class itself is a part of the shared library. The compilation of the shared library itself is OK. But when the library is linked to another program that has another class deriving from the abstract one in the shared library and defining the pure virtual methods, I get the following linker error: I compile like this..: g++ -I../path/to/the/library main.cpp derived.cpp -L../path/to/the/library -lsomename -o shared ...and the linker error is: libsomename.so: undefined reference to `AbstractClass::method()' It's like the abstract class cannot access its pure virtual methods but I do not try to make any instance of the abstract class anywhere in the library. What could be the problem?

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• Supervising multiple gen_servers with same module / different arguments

  - by Justin

  Hi, I have a OTP application comprising a single supervisor supervising a small number of gen_servers. A typical child specification is as follows: {my_server, {my_server, start_link, [123]}, permanent, 5000, worker, [my_server]} No problems so far. I now want to an add extra gen_server to the supervisor structure, using the same module Module/Fn as above, but different arguments, eg {my_server_2, {my_server, start_link, [123]}, permanent, 5000, worker, [my_server_2]} I thought this would work, but no: =SUPERVISOR REPORT==== 15-Apr-2010::16:50:13 === Supervisor: {local,my_sup} Context: start_error Reason: {already_started,<0.179.0>} Offender: [{pid,undefined}, {name,my_server_2}, {mfa,{my_server,start_link,[]}}, {restart_type,permanent}, {shutdown,5000}, {child_type,worker}] Do the module arguments in the second element of each child specification need to be different ? Thanks, Justin

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• CakePHP call to member function on non-object

  - by joec

  I have the following Model and Controller files, and when i visit this url, http://....../pois/index i get this error: Notice (8): Undefined property: PoisController::$Poi [APP/controllers/pois_controller.php, line 5] Fatal error: Call to a member function find() on a non-object in /home/joecoyle/public_html/app/controllers/pois_controller.php on line 5 The Model is this, called poi.php: <?php class Poi extends AppModel { } ?> And the controller is this, named pois_controller.php <?php class PoisController extends AppController { function index(){ $this->set('pois',$this->Poi->find('all')); } } ?> As i am new to CakePHP i am not sure what is causing this error, as everything seems to be named, right, and i am following the tutorial on the CakePHP site... Thanks

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• iOS app won't compile on device but works fine in simulator

  - by Jhorra

  I'm assuming this has something to do with linking, but I've removed RestKit and re-added it. I made sure all my connections and linking was in place. If I set XCode to use the simulator it runs fine, but as soon as I set it to run on any device it won't even build. The only other thing of note is this didn't start happening till I upgraded to XCode 4.5. Below are the errors it gives me ld: warning: ignoring file /Users/luke/Library/Developer/Xcode/DerivedData/ehrx-btsujlxuhtytahfaikwjeqfjybtt/Build/Products/Debug-iphoneos/libRestKit.a, file was built for archive which is not the architecture being linked (armv7s): /Users/luke/Library/Developer/Xcode/DerivedData/ehrx-btsujlxuhtytahfaikwjeqfjybtt/Build/Products/Debug-iphoneos/libRestKit.a Undefined symbols for architecture armv7s: "_OBJC_CLASS_$_RKClient", referenced from: objc-class-ref in ehrxAppDelegate.o objc-class-ref in ehrxLoginView.o objc-class-ref in ehrxInboxView.o objc-class-ref in ehrxCMView.o objc-class-ref in ehrxEncounterDemoView.o objc-class-ref in ehrxEncounterDiagListView.o objc-class-ref in ehrxEncounterChargeView.o ... ld: symbol(s) not found for architecture armv7s clang: error: linker command failed with exit code 1 (use -v to see invocation)

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• Using static mutex in a class

  - by Dmitry Yudakov

  I have a class that I can have many instances of. Inside it creates and initializes some members from a 3rd party library (that use some global variables) and is not thread-safe. I thought about using static boost::mutex, that would be locked in my class constructor and destructor. Thus creating and destroying instances among my threads would be safe for the 3rd party members. class MyClass { static boost::mutex mx; // 3rd party library members public: MyClass(); ~MyClass(); }; MyClass::MyClass() { boost::mutex::scoped_lock scoped_lock(mx); // create and init 3rd party library stuff } MyClass::~MyClass() { boost::mutex::scoped_lock scoped_lock(mx); // destroy 3rd party library stuff } I cannot link because I receive error: undefined reference to `MyClass::mx` Do I need some special initialization of such static member? Is the whole conception of static mutex wrong?

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• Naming suggestions for a function returning parent prototype

  - by hevalbaranov

  I'm having a naming trouble with a function which returns parent prototype of specified object. It's being used like this: # Pseudo Code MyClass { super(MyClass,this).constructor.call(.... The problem is that I want to use a word which is as superior as "super", but "super" is reserved even it's undefined. Now I'm using "parent", but the window object has a property named parent. I hate Javascript. What should I name this function? Names have to start with lowercase and have to be short.

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• NodeJS vm.runInThisContext() and lack of __filename

  - by rFactor

  Whenever I run vm.runInThisContext(code, filename), the ran code reports __filename and __dirname as undefined. This also leads to the situation that any fs.readFile and such calls will not work with relative paths. For example this does not work: fs.readFile('../file', fn); because it does not know where to relate the path to. Specifying the filename as /home/full/path/to/file.js for vm.runInThisContext function does not seem to matter at all. How can I make Node to understand the path to the file?

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• using pthread in c++

  - by ogzylz

  I am using pthread.h in a *.cc file. when I try to use pthread_exit(0); or pthread_join(mythrds[yy],NULL); it says : .cc:(.text+0x3e): undefined reference to `pthread_exit' when complied very similar code in a *.c file with gcc it work perfect. How Can I use pthread's in c++.. (I also added -lpthread) .. void *myThreads ( void *ptr ) { ... pthread_exit(0); } .. flags: g++ -lpthread -Wall -static -W -O9 -funroll-all-loops -finline -ffast-math

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• JavaScript Array Problem

  - by JasonS

  Hi, This wasn't the question I was going to ask but I have unexpectedly run aground with JavaScript arrays. I come from a PHP background and after looking at a few websites I am none the wiser. I am trying to create a multi-dimensional array. var photos = new Array; var a = 0; $("#photos img").each(function(i) { photos[a]["url"] = this.src; photos[a]["caption"] = this.alt; photos[a]["background"] = this.css('background-color'); a++; }); Error message: photos[a] is undefined. How do I do this. Thanks.

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• Help getting ActiveScaffold to work properly

  - by x3ro

  Hey there I was curious about the ActiveScaffold Rails plugin, but somehow I can't get it to work properly. I've followed the steps which are described on http://activescaffold.com/tutorials/ . The table and everything shows up and when I click on "Create new", the dialog pops up. However, when I fill out the form and click "Create", I just get "500 Internal server error". In the server log, it says "NameError (wrong constant name ###):", with ### being what I entered in the first form field. If I don't enter anything in the form, it says "NoMethodError (undefined method `new_record?' for #):"... So what am I doing wrong here? Thanks in advance for your help :)

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• Page validation not working in javascript

  - by crisgomez

  Hi, I have a problem regarding checking the page validation in javascript. I have a user controls in my aspx page,for example control1, control2, and control3. For each control I created a validation group, then I tried to use the code below, the problem is, it will always return a false value eventhough the page validation has been satisfied.What went wong with the code below?By the way I used Ajax in my application. if (typeof (Page_Validators) != "undefined") { if (typeof (Page_ClientValidate) == 'function') { Page_ClientValidate(); } if (Page_IsValid) { // do something alert('Page is valid!'); } else { // it will always goes here eventhough it was validated successfully alert('Page is not valid!'); } }

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• how to tell Rails RSpec that spec is "type helper"

  - by equivalent8

  I wrote *simple_form* input extension that is located in app/inputs/something_input.rb I'm trying to write RSpec for this. When I put this spec inside spec/helpers/application_helper_spec.rb everything was working without single problem. # spec/helpers/application_helper_spec.rb require 'spec_helper' describe ApplicationHelper do it do helper.simple_form_for @foo,:method=>'get', :url=>helper.users_path do |f| f.input :created_at, :as =>:custom_datepicker end.should =~ /something/ end end Now I'm trying to move that spec to spec/inputs/something_input_spec.rb so it will be similar name path. # spec/imputs/something_input_spec.rb require 'spec_helper' describe SomethingInput do it do helper.simple_form_for @foo,:method=>'get', :url=>helper.users_path do |f| f.input :created_at, :as =>:custom_datepicker end.should =~ /something/ end end # #ERROR: undefined local variable or method `helper' for #<RSpec::Core::ExampleGroup the thing I want to tell RSpec to threat this file as type helper spec, so I will have helper method availible with all the RSpec::Rails::HelperExampleGroup functionality ... how can I do that ?? I was trying to extend/include it with RSpec::Rails::HelperExampleGroup nothing seems to work

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• Using STI path with same controller

  - by TenJack

  I am using STI and am wondering, do I have to have a separate controller for each model? I have a situation where I only use the create and edit actions for one model in the STI relationship, but I get an 'undefined method' error if I try to do a form for. More specifically, I have two models that inherit from List: class RegularList < List class OtherList < List and I have a lists controller that handles these actions, but I only create new models with RegularList using forms. i.e. the only situation where I use a form_for to create a new List object is with RegularList. What I would like to do is something like: class ListsController < ApplicationController def new @list = RegularList.new end otherwise the route for creating a new list looks like regular_list/new but I would like it to just be list/new. Thoughts?

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• How can i disable drag event using jquery?

  - by Chirag

  Hi, i wan to disable drag event using jquery and want to bind one another event with same mouse event, but it will shows an error i have attached drag even to <div class="mydiv"></div> and i have used jQuery('.mydiv').draggable("destroy"); it is disabling the drag event and attached one more functionality on mouse down but when i will press mouse on div and dragging the cursor then it shows error $(this).data("draggable") is undefined [Break on this error] var t = $('body'), o = $(this).data('draggable').options; and this is in ui.draggable.js, any buddy have any idea about this??

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• Rails: Accessing previous loop in Populator (rake db:populate)

  - by sscirrus

  I am populating my Rails database using populator, and I have a case where I would like to build a series of records where fields start_date and end_date follow seamlessly from each other (from today back into the past). Here is a sample of what I'm doing: Chain.populate 1 do |ch| ch.date_end = DateTime.now ch.date_start = DateTime.civil(DateTime.now.year-rand(40)-1, rand(12)+1, rand(31)+1) end Chain.populate 0..10 do |chs| chs.date_end = Chain.find(:last).date_start chs.date_start = DateTime.civil(chs.date_end.year-rand(10)-1, rand(12)+1, rand(31)+1) end Problem? undefined method 'date_start' for nil:NilClass. I assume the problem is the first Chain record hasn't been saved, so I added: Chain.save # in between the two loops This didn't work either. How can I make this work? Thank you!

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• document.getElementById in toString

  - by KooiInc

  edit Found my answers here. Bottom line: toString/valueOf can only return primitive types. So here the lack of native getters in javascript shows, I suppose. I would like to use the following simple function in an elementwrapper: function ElGetter(id){ var id = id; return { set: function(nwid){id = nwid;}, toString: function(){return document.getElementById(id);}, valueOf: function(){return document.getElementById(id);} }; } var myEl = ElGetter('myId'); console.log(myEl.innerHTML); //=> undefined But I can't get it to work. Is it a DOM/javascript restriction or am I missing something? Normally it works, as in: function Tester(){ var x = 1; return { toString: function(){return x}, valueOf: function(){return x} } } var myTest = Tester(); console.log(myTest); //=> 1

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• How do I include the capistrano thinking sphinx tasks when using the gem

  - by Sam Saffron

  Im using the gem for thinking sphinx: sudo gem install freelancing-god-thinking-sphinx \ --source http://gems.github.com So: require 'vendor/plugins/thinking-sphinx/recipes/thinking_sphinx' Which is prescribed on the website does not work. How do I include the capistrano thinking sphinx tasks in my deploy.rb file when using the gem? EDIT Adding: require 'thinking_sphinx/deploy/capistrano' gives me: /usr/lib/ruby/gems/1.8/gems/freelancing-god-thinking-sphinx-1.1.12/lib/thinking_sphinx/deploy/capistrano.rb:1: undefined method `namespace' for main:Object (NoMethodError) from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' from /usr/lib/ruby/gems/1.8/gems/capistrano-2.5.8/lib/capistrano/configuration/loading.rb:152:in `require'

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• Errors detected when loading a vim plugin from .vimrc

  - by Tejinder

  I have installed vim 7.3 on debian system along with some vimrc i have downloaded from internet. It used to work fine on my other debian machine but here i get these error messages while i load the vim editor. Here are the errors: Error detected while processing /home/tejinder/.vim/plugin/gundo.vim: line 196: E319: Sorry, the command is not available in this version: python << ENDPYTHON line 197: E492: Not an editor command: def asciiedges(seen, rev, parents): line 199: E121: Undefined variable: rev E15: Invalid expression: rev not in seen: line 221: E133: :return not inside a function line 231: E133: :return not inside a function line 233: E133: :return not inside a function line 235: E133: :return not inside a function line 238: E690: Missing "in" after :for line 347: E690: Missing "in" after :for line 356: E690: Missing "in" after :for line 453: E690: Missing "in" after :for line 464: E690: Missing "in" after :for line 469: E133: :return not inside a function line 795: E170: Missing :endfor Press ENTER or type command to continue If anyone could figure out thats going on, please guide me. Thanks a lot. Here is vimrc source: https://github.com/mitsuhiko/dotfiles/tree/master/vim

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• Firefox why window.opener is defined even for a new tab

  - by jonny

  Hi! I am porting quite old corp application from IE to Firefox. Here is my situation. User goes away from computer for a while and his session becomes expired. When user tries to access something in popup, he is being redirected to login page (in popup window). In login page onload event popup window chain is being closed and root page refreshed (in root page tab user is redirected to login page). The guy before me wrote this like this: if window.top.opener is undefined, we're not in popup. That's why I am getting non-stoppable refresh in Firefox. Why in Firefox window.opener is still defined and points to same window, even if this is a new tab, not popup? How should I correctly determine that current window is popup?

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• JavaScript addEvent function

  - by Yalmaz Khalil

  I have an addEvent function: function addEvent(elem, event, func ) { if (typeof (window.event) != 'undefined') elem.attachEvent('on' + event, func); else elem.addEventListener(event, func, false); } <a href="#" id="link">link</a> and I'm trying to add the following to window.onload: addEvent(window, 'load', function (){ // add another event var link= document.getElementById('link'); addEvent(link, 'click', function () {alert('Hi'); }); }); My question is: why does the link event not work?

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• IE error with jquery counter plugin

  - by Mankey

  I've implemented a jquery counter script (count up from say 50 to 100 with different increments) that I found from this question: jQuery counter to count up to a target number The scripts works great except for in Internet Explorer 8 (and possibly other IE versions?). Here's an error message from IE with the URL to the creator of the script's demo. Message: 'undefined' is null or not an object Line: 32 Char: 17 Code: 0 URI: http://www.ulmanen.fi/stuff/counter.php I'm just wondering if anyone know how this can be fixed. I'm guessing it has to do with el.html() not finding any data but I can't really figure this out. Thanks for any help ^^ I would reply to that post if I could but I can't seem to find any way of doing so (I'm new to stackoverflow, I think I lack privileges).

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• How to override built-in getattr in Python?

  - by Stephen Gross

  I know how to override an object's getattr() to handle calls to undefined object functions. However, I would like to achieve the same behavior for the builtin getattr() function. For instance, consider code like this: call_some_undefined_function() Normally, that simply produces an error: Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'call_some_undefined_function' is not defined I want to override getattr() so that I can intercept the call to "call_some_undefined_function()" and figure out what to do. Is this possible? Thanks, --Steve

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• how have defined connection within function for pdo communication with DB

  - by Scarface

  hey guys I just started trying to convert my query structure to PDO and I have come across a weird problem. When I call a pdo query connection within a function and the connection is included outside the function, the connection becomes undefined. Anyone know what I am doing wrong here? I was just playing with it, my example is below. include("includes/connection.php"); function query(){ $user='user'; $id='100'; $sql = 'SELECT * FROM users'; $stmt = $conn->prepare($sql); $result=$stmt->execute(array($user, $id)); echo $count=$stmt->rowCount(); if (!$result || $stmt->rowCount()>=1){ echo 'balls'; } // now iterate over the result as if we obtained // the $stmt in a call to PDO::query() while($r = $stmt->fetch(PDO::FETCH_ASSOC)) { echo "$r[username] $r[id] \n"; } } query();

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