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• Single specific string replace method Objective C

  - by Sam

  Hi guys, I wanted to know if theres a single method or way that will help me replace strings for specific characters. like MALE - M FEMALE - F CHILD - P The longer way out is this.. [str stringByreplacingOccurencesOfString:@"MALE" withString:@"M"]; [str stringByreplacingOccurencesOfString:@"FEMALE" withString:@"F"]; [str stringByreplacingOccurencesOfString:@"CHILD" withString:@"P"]; I was wondering if theres another way in which i can reduce lines of code here, specially when there are alots of things to replace. thanks. this is for iPhone OS.

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• Unlocking Locked Out accounts using PowerShell (not with Quest AD cmdlets)

  - by Jonny

  I'm writing a GUI tool using PowerShell that is able to do most AD related tasks with just a user name and button click. I've done all the usual ones (Create / Remove Users, Create / Remove Security & Distribution Groups, Resetting Passwords, etc) but can't find away of unlocking a "Locked Out" account. I'm trying to do this without using Quest AD cmdlets as I want a more stand alone solution. So I'm wondering whether is possible with plain PowerShell (1.0 or 2.0) in a Windows 2003 Domain. Many thanks.

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• A device specific alpha bitmap fails after switching resolutions in remote desktop

  - by Bob

  All my alpha bitmaps, created using CreateCompatibleBitmap(..), start to receive an error code 87 after someone signs in with Remote Desktop. I am assuming that this is because the resolution changed and I am using a device specific bitmap. I am wondering what the best route is to fix this issue without migrating to a device independent bitmap? Some options are: 1) Detect remote desktop change and flag all bitmaps to be reloaded (I have done this but it does not work as well as I would like). 2) Wait for error code 87 to happen on an alphablend image that previously worked, and then reload it (was going to try this next, im sure it will work, but a little hacky) 3) Detect random event such as WM_DISPLAYCHANGE or _ that tells me when I should do this (ie: a device change event I'm guessing, or maybe something more specific?) 4) _? Thanks for any help in advance

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• Action Mailer Confirmation Emails - Ruby on Rails...

  - by bgadoci

  I have successfully installed the Clearance Gem from ThoughtBot. Clearance sends a confirmation email upon a new sign_up and suggests adding: config.action_mailer.default_url_options = { :host => 'localhost:3000' } to your /environments/test.rb and development.rb. I have tried this and also config.action_mailer.default_url_options = { :host => '127.0.0.1', :port => 3000 } But can't seem to get rails to send the email. As I am new to both Ruby and Rails, I am wondering if there is some step/config that ThoughtBot is assuming I have already done to send emails. What am I doing wrong/missing? UPDATE: Just added notifier.rb class Notifier < ActionMailer::Base recipients recipient.email_address_with_name bcc ["[email protected]"] from "[email protected]" subject "New account information" body :account => recipient end end

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• Is there a HIPAA certification that would be helpful to programmers?

  - by Aequitarum Custos

  I work at a Medical Billing company that's software handles many facets of the centers practice, including patients, treatments, etc. To be frank, the only thing I know about HIPAA is security is paramount. I was wondering if there were any training courses with an earned certification proving knowledge/experience that I could use to increase my worth to the company, and give them a selling point (we have HIPAA certified employees). I did a Google search and found this site, but it does not appear legitimate, and I'm trying to avoid any of those fake certification/degree sites. Does anyone know of any recognized and legitimate (preferably government sponsored) HIPAA certifications useful to programmers? If state is a factor, I live in Oklahoma.

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• Which is the best PDF library for PHP?

  - by Darryl Hein

  I'm wondering which is the best PDF creation library for PHP, mainly for creating PDFs from scratch (not as much HTML to PDF)? I have worked with FPDF for quite a while now, but it's getting quite old and hasn't had much for updates. I found TCPDF the other day (thanks you another question on SO). It seems very good and is based on FPDF so I don't think it'd be a big transition. FPDI also supports TCPDF which is nice as I have used it before and found it be useful. I have also seen DOMPDF but it too hasn't had many updates for quite some time and is lacking a lot of functionality for general PDF generation. Zend (Zend_Pdf) as well as many other libraries have their own PDF libraries or extend another one, but you often have to setup the entire library, which for existing projects can be a problem. What other libraries are there and what have your experiences with them been with the above or other libraries?

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• What add-in/workbench framework is the best .NET alternative to Eclipse RCP?

  - by Winston Fassett

  I'm looking for a plugin-based application framework that is comparable to the Eclipse Plugin Framework, which to my simple mind consists of: a core plugin management framework (Equinox / OSGI), which provides the ability to declare extension endpoints and then discover and load plugins that service those endpoints. (this is different than Dependency Injection, but admittedly the difference is subtle - configuration is highly de-centralized, there are versioning concerns, it might involve an online plugin repository, and most importantly to me, it should be easy for the user to add plugins without needing to know anything about the underlying architecture / config files) many layers of plugins that provide a basic workbench shell with concurrency support, commands, preference sheets, menus, toolbars, key bindings, etc. That is just scratching the surface of the RCP, which itself is meant to serve as the foundation of your application, which you build by writing / assembling even more plugins. Here's what I've gleaned from the internet in the past couple of days... As far as I can tell, there is nothing in the .NET world that remotely approaches the robustness and maturity of the Eclipse RCP for Java but there are several contenders that do either #1 or #2 pretty well. (I should also mention that I have not made a final decision on WinForms vs WPF, so I'm also trying to understand the level of UI coupling in any candidate framework. I'm also wondering about platform coupling and source code licensing) I must say that the open-source stuff is generally less-documented but easier to understand, while the MS stuff typically has more documentation but is less accessible, so that with many of the MS technologies, I'm left wondering what they actually do, in a practical sense. These are the libraries I have found: SharpDevelop The first thing I looked at was SharpDevelop, which does both #1 and also #2 in a basic way (no insult to SharpDevelop, which is admirable - I just mean more basic than Eclipse RCP). However, SharpDevelop is an application more than a framework, and there are basic assumptions and limitations there (i.e. being somewhat coupled to WinForms). Still, there are some articles on CodeProject explaining how to use it as the foundation for an application. System.Addins It appears that System.Addins is meant to provide a robust add-in loading framework, with some sophisticated options for loading assemblies with varying levels of trusts and even running the out of process. It appears to be primarily code-based, and pretty code-heavy, with lots of assemblies that serve to insulate against versioning issues., using Guidance Automation to generate a good deal of code. So far I haven't found many System.AddIns articles that illustrate how it could be used to build something like an Eclipse RCP, and many people seem to be wringing their hands about its complexity. Mono.Addins It appears that Mono.Addins was influenced by System.Addins, SharpDevelop, and MonoDevelop. It seems to provide the basics from System.Addins, with less sophisticated options for plugin loading, but more simplicity, with attribute-based registration, XML manifests, and the infrastructure for online plugin repositories. It has a pretty good FAQ and documentation, as well as a fairly robust set of examples that really help paint a picture of how to develop an architecture like that of SharpDevelop or Eclipse. The examples use GTK for UI, but the framework itself is not coupled to GTK. So it appears to do #1 (add-in loading) pretty well and points the way to #2 (workbench framework). It appears that Mono.Addins was derived from MonoDevelop, but I haven't actually looked at whether MonoDevelop provides a good core workbench framework. Managed Extensibility Framework This is what everyone's talking about at the moment, and it's slowly getting clearer what it does, but I'm still pretty fuzzy, even after reading several posts on SO. The official word is that it "can live side-by-side" with System.Addins. However, it doesn't reference it and it appears to reproduce some of its functionality. It seems to me, then, that it is a simpler, more accessible alternative to System.Addins. It appears to be more like Mono.Addins in that it provides attribute-based wiring. It provides "catalogs" that can be attribute-based or directory-based. It does not seem to provide any XML or manifest-based wiring. So far I haven't found much documentation and the examples seem to be kind of "magical" and more reminiscent of attribute-based DI, despite the clarifications that MEF is not a DI container. Its license just got opened up, but it does reference WindowsBase -- not sure if that means it's coupled to Windows. Acropolis I'm not sure what this is. Is it MEF, or something that is still coming? Composite Application Blocks There are WPF and Winforms Composite Application blocks that seem to provide much more of a workbench framework. I have very little experience with these but they appear to rely on Guidance Automation quite a bit are obviously coupled with the UI layers. There are a few examples of combining MEF with these application blocks. I've done the best I could to answer my own question here, but I'm really only scratching the surface, and I don't have experience with any of these frameworks. Hopefully some of you can add more detail about the frameworks you have experience with. It would be great if we could end up with some sort of comparison matrix.

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• Work-around for PHP5's PDO rowCount MySQL issue

  - by Steven Surowiec

  I've recently started work on a new project using PHP5 and want to use their PDO classes for it. The problem is that the MySQL PDO Driver doesn't support rowCount() so there's no way to run a query and then get the number of affected rows, or rows returned, which is a pretty big issue as far as I'm concerned. I was wondering if anyone else has dealt with this before and what you've done to work around it. Having to do a fetch() or fetchAll() to check if any rows were affected or returned seems like a hack to me, I'd rather just do $stmt-numRows() or something similar.

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• Can I embed an icon to a .hta file?

  - by BoltBait

  I have written an HTML Application (hta file) and am wondering if there is a way to embed an icon file into the hta file itself. I have seen html emails that include embedded graphic files, is there any way to do this with html applications and icons? HTA files have an HTA:APPLICATION tag that allows you to specify an icon, but I want to have only a single file for download. I don't want to have an external icon file. Is this possible? More info on hta files here: HTA files.

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• Is there any performance difference between Debug and Release?

  - by Lazlo

  I'm using MySql Connector .NET to load an account and transfer it to the client. This operation is rather intensive, considering the child elements of the account to load. In Debug mode, it takes, at most, 1 second to load the account. The average would be 500ms. In Release mode, it takes from 1 to 4 seconds to load the account. The average would be 1500ms. Since there is no #if DEBUG directive or the like in my code, I'm wondering where the difference is coming from. Is there a project build option I could change? Or does it have to do with MySql Connector .NET that would have different behaviors depending on the build mode?

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• What does !! (double exclamation point) mean?

  - by molecules

  In the code below, from a blog post by Alias, I noticed the use of the double exclamation point !!. I was wondering what it meant and where I could go in the future to find explanations for Perl syntax like this. (Yes, I already searched for '!!' at perlsyn). package Foo; use vars qw{$DEBUG}; BEGIN { $DEBUG = 0 unless defined $DEBUG; } use constant DEBUG => !! $DEBUG; sub foo { debug('In sub foo') if DEBUG; ... } UPDATE Thanks for all of your answers. Here is something else I just found that is related The List Squash Operator x!!

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• Zip Code Radius Search question...

  - by KnockKnockWhosThere

  I'm wondering if it's possible to find all points by longitude and latitude within X radius of one point? So, if I provide a latitude/longitude of -76.0000, 38.0000, is it possible to simply find all the possible coordinates within (for example) a 10 mile radius of that? I know that there's a way to calculate the distance between two points, which is why I'm not clear as to whether this is possible... Because, it seems like you need to know the center coordinates (-76 and 38 in this case) as well as the coordinates of every other point in order to determine whether it falls within the specified radius... Is that right?

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• How can I set a highlighted image on a table view cell?

  - by nevan

  I've followed the code in Apple's AdvancedTableViewCells and built a table view with a background image for cells. Now I want to change it so that instead of the blue highlight colour, it shows a darker version of my image. What are the steps I need to follow to do this? I'm using a UITableViewCell subclass with a custom NIB. My background image is implemented as the cell.backgroundView. The steps I've take so far are: Change the selectionStyle of the cell to "None" Set the Highlight colour on my UILabel subviews to a light colour Create a darker version of my background as a separate image Override setSelected: animated: I'm wondering about the next steps.

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• When and how should custom hierarchies be used in clojure?

  - by Rob Lachlan

  Clojure's system for creating an ad hoc hierarchy of keywords is familiar to most people who have spent a bit of time with the language. For example, most demos and presentations of the language include examples such as (derive ::child ::parent) and they go on to show how this can be used for multi-method dispatch. In all of the slides and presentations that I've seen, they use the global hierarchy. But it is possible to keyword relationships in custom hierarchies. Some questions, therefore: Are there any guidelines on when this is useful or necessary? Are there any functions for manipulating hierarchies? Merging is particularly useful, so I do this: (defn merge-h [& hierarchies] (apply merge-with (cons #(merge-with clojure.set/union %1 %2) hierarchies)) But I was wondering if such functions already exist somewhere.

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• amCharts issue with Flex

  - by Conor Higgins

  HI I am working with amCharts at the moment and was wondering if somebody could give me some sort of guidance on the matter. I am using Flex to call a server side php file which then returns some xml data. This works perfectly and efficiently. I then add this data to the chart will also works quite well. However as I try to use the scroll bar on the chart, it seems to zoom out and delete all my data. I cant figure this out at all. The same thing happens when i click the show all button.

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• Absolute path of a file object

  - by Morgoth

  This has been discussed on StackOverflow before - I am trying to find a good way to find the absolute path of a file object, but I need it to be robust to os.chdir(), so cannot use f = file('test') os.path.abspath(f.name) Instead, I was wondering whether the following is a good solution - basically extending the file class so that on opening, the absolute path of the file is saved: class File(file): def __init__(self, filename, *args, **kwargs): self.abspath = os.path.abspath(filename) file.__init__(self, filename, *args, **kwargs) Then one can do f = File('test','rb') os.chdir('some_directory') f.abspath # absolute path can be accessed like this Are there any risks with doing this?

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• Is this a good way to manage initializations of COM?

  - by BillyONeal

  Hello everyone :) I'm very new to anything involving Component Object Model, and I'm wondering if this method of managing calls to CoInitalize/CoUninitalize makes sense: COM.hpp: #pragma once namespace WindowsAPI { namespace ComponentObjectModel { class COM { COM(); ~COM(); public: static void Setup(); }; }} COM.cpp: #include <Windows.h> #include "COM.hpp" namespace WindowsAPI { namespace ComponentObjectModel { COM::COM() { if (CoInitializeEx(NULL, COINIT_APARTMENTTHREADED) != S_OK) throw std::runtime_error("Couldn't start COM!"); } COM::~COM() { CoUninitialize(); } void COM::Setup() { static COM instance; } }} Then any component that needs COM just calls COM::Setup() and forgets about it. Does this make sense or am I breaking any "rules" of COM?

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• Native Mouse events with Flash and Selenium

  - by Dan at Demand

  I understand that Selenium does not support Flash, but it is my understanding that I should be able to do some simplistic testing of Flash by using Selenium's built in native mouse support and doing mouse up/down events based on coordinates. Is this correct? I can't seem to get it working. I'm trying to test on this page: http://mandy-mania.blogspot.com/2010/04/sneak-peek-of-final-season-of-lost-dvd.html and all I'm trying to do is click on the flash object so it plays the video. I've tried all sorts of commands, MouseOver, MouseDown, MouseDownAt, MouseUp, MouseUpAt, etc. So, I'm wondering if this just theoretically doesn't work or if I'm just doing something wrong. The xpath I'm using is //object[@id='player'], although I've tried a number of different combinations. And yes, I've also tried just the straight click command. Any suggestions? Thanks!

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• How to check if a SWF is running as an AIR app?

  - by Sandro

  Hi, I'm wondering if there is a way for a SWF to check at runtime whether it is running as an online SWF or an AIR app? I need to use the same SWF to run both online and locally, however when running as an AIR app, external assets are located in a different directory. I'd like to check whether a SWF is local or online so I can change the source path for external assets accordingly. Thanks, Sandro Edit: I just realized this might be a dumb question. :) I may just use flashvars to tell the SWF that it is running within an AIR app.

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• jquery nodename returning undefined

  - by matthewsteiner

  This code isn't for anything in particular. I'm just trying to successfully get the tagName or nodeName of an element. However, when I run the following code, I always get an alert saying "undefined". I'm wondering if it's because this function executes when the document is ready? Is there a different place I should be doing this? Or is it probably my other javascript code conflicting somehow (I would doubt). $(document).ready(function(){ $('#first').hover(function() { alert($('#last').nodeName); }); });

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• validating creation by post_id and ip_address - Ruby on Rails

  - by bgadoci

  I have created a blog application using Ruby on Rails which includes the ability to vote on posts. A user can click vote and a record is created in the vote table. I am now trying to limit that same person from voting for a post multiple times. class Post has_many :votes end class Vote belongs_to :post end When a vote record is created I am using the VotesController to pass the :post_id and using a hidden field in the view to pass the ip_address (both to the vote table). I am wondering if there is a way to add a validation to the Vote Model that searches to see if a post_id has an ip_address that matches the person requesting to vote. I have tried simply using the validates_uniqueness_of :ip_address but that restricts the user from voting on any post. I just want to restrict the user from voting on a particular post that they have already voted on. Is there a way to do this through validation?

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• Django equivalent for latest entry for each user

  - by paul-ogrady

  Hi, I'm surprised this question hasn't come up. Couldn't find much on the web. Using Entry.objects.latest('created_at') I can recover the latest entry for all Entry objects, but say if I want the latest entry for each user? This is something similar to an SQL latest record query. But how do I achieve this using the ORM? Here is my approach I'm wondering if it is the most efficient way to do what I want. First I perform a sub query: Objects are grouped by user and the Max (latest) created_by field is returned for each user (created_at__max) I then filter Entry objects based on the results in the subquery and get the required objects. Entry.objects.filter(created_at__in=Entry.objects.values('user').annotate(Max('created_at')).values_list('created_at__max')) or using a manager: class UsersLatest(models.Manager): def get_query_set(self): return Super(UsersLatest,self).get_query_set().filter(created_at__in=self.model.objects.values('user').annotate(Max('created_at')).values_list('created_at__max')) Is there a more efficient way? possibly without sub query? Thanks, Paul

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• Porting a project to OpenGL3

  - by Decapsuleur

  Hi everyone, I'm working on a C++ cross-platform OpenGL application (Windows, Linux and MacOS) and I am wondering if some of you could share some advices on porting a large application to OpenGL 3. The reason I am looking into OpenGL 3 is because I think we could benefit a lot from using the new "Sync objects". Nvidia has supported such an extension since the Geforce 256 days (gl_nv_fences) but there seems to be no equivalent functionality on ATI hardware before OpenGL 3.0+... Our code makes quite heavy use of glut/freeglut, glu functions, OpenGL 2 extensions and CUDA (on supported hardware). The problem I am now facing is that "gl3.h" and "gl.h" are mutually incompatible (as stated in gl3.h). Do you guys know if there is a GL3 glut equivalent ? Also, looking at the CUDA-toolkit header files, it seems that GL-CUDA interoperability is only available when using older versions of OpenGL... (cuda_gl_interop.h includes gl.h...). Am I missing something ? Thanks a lot for your help.

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• how do i make my own P2P software ?

  - by wefwgeweg

  how can i make my own napster ? which library are these p2p programs using ? i am not too familiar with the concept of socket programming. could you make p2p program using Qt4 ? i've been wondering about this question since the Napster days. how would you also go about creating the next "bitorrent" ? is this by using similar socket libraries ? what's the latest in p2p technology ? are there any news sites? what's the future hold for p2p ?

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• What are some best practices for structuring cherrypy apps?

  - by Omega

  I'm writing a cherrypy app and I was wondering what the best way is for structuring my handlers and code for larger applications? I realize assignment is simple trough cherrypy.root, but what are some practices for writing the handlers and assigning them? (Allow me to prove my confusion!) My initial thought is to write a standard handler class that infers a template to run based on the current URL or class/method combination. Then I would assign one instance of that handler multiple times to the path to create pages. I don't see this working however as the recursive references wouldn't work quite right. So, given the fact that I'm already drawing blanks on how my own source code should look, I'd love some pointers and examples! Feel free to ask some detailed questions for me to clarify. While there is plenty of cherrypy tutorial material out there, it tends to only scratch the surface.

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