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• Removing all CALayer's sublayers

  - by radex

  Hi. I have trouble with deleting all layer's sublayers. I do this manually, but it's unwanted code clutter. I found many topics about this in google, but no answer. I tried to do something like this: for(CALayer *layer in rootLayer.sublayers) { [layer removeFromSublayer]; } but it didn't work. Also, i tried to clone rootLayer.sublayers into separate NSArray, but result was the same. Any ideas? regards, radex PS. sorry for my English. Edit: I thought it works now, but I was wrong. It works good with CALayers, but it doesn't work with CATextLayers. Any ideas?

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• Upload file with POST method on Qt4

  - by mosg

  Hello! I'm looking for a basic code samples of how to upload files to server with HTTP POST method on Qt. My task: I have simple Qt program and I need to select any image file from the local host and upload it to the server. The selection part and GUI is simple and I have already done it, but with POST uploading I'm confused. In addition I have to say, that there is no authorization to upload file. If someone already looking this topic? PS: the reason why I'm asking and not coding my self is time, I need to get this method quick. Thank you, all success solutions from my side will be posted here for others.

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• Microsoft T-SQL to Oracle PL/SQL translation

  - by Michael Prewecki

  I've worked with T-SQL for years but i've just moved to an organisation that is going to require writing some Oracle stuff, probably just simple CRUD operations at least until I find my feet. I'm not going to be migrating databases from one to the other simply interacting with existing Oracle databases from an Application Development perspective. Is there are tool or utility available to easily translate T-SQL into PL/SQL, a keyword mapper is the sort of thing I'm looking for. P.S. I'm too lazy to RTFM, besides it's not going to be a big part of my role so I just want something to get me up to speed a little faster.

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• continuous music on website

  - by Patrick

  Hi all, I'm against it as I'm sure ALL of you are, but my client wants background music on their website. I'm very new to this, so was wondering how should I do that? I know I should use iframes, but what's the actual way of using them? eg: do I just create the home page with 2 frames (one for the music, one for the rest of the website), and then every time the user clicks on a link I can load the usual destination page - or should I update all pages in some way to make sure they are 'frames enabled'? Also, I do I style the frame to make sure it's hidden? thanks, Patrick ps please don't reopen the discussion about why background music is not good - I do know that and personally hate it. But the client is adamant and paying for it so... ;)

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• Custom view in ListView disappears while scrolling in Android

  - by troorl

  Hi. I wrote a simple custom view for rows in ListView. It works fine, but when I try to scroll the list, I see only white rows without content. And when scrolling is over, rows continue to show again. This is how I draw a custom view: @Override protected void onDraw(Canvas canvas) { if(poster != null) { canvas.drawBitmap(poster, padding, padding, paint); } canvas.drawText(title, 55 + padding, 16 + padding, paint); } Maybe I missed something? P.S. This is short screencast (400kb) http://dl.dropbox.com/u/190203/test.mpeg

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• IIS6 Problems with ASP.NET MVC.

  - by Markus

  Hello, I have a ASP.NET MVC page. I Configured a IIS Website and added the additonal H:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll. my Directory Structure is like that / ../App_data/ ../bin/ ../Content/ ../Properties/ ../Scripts/ ../Views/ ../Default.aspx ../Global.asax ../Web.config My page is configured to port 9090. If i try to access the page i get the "default" Page. But if i try to access any other page than the //myServer:9090 like //myServer:9090/home (which is the default method in my HomeController) i get a "page not found" error page. For me it looks like he does'nt execute the assambly. In the Debbuging Server all runs nice. What could be the Problem? P.S: If i forgort something pls ask for! thanks!

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• Adding scope variable to an constructor

  - by Lupus

  I'm trying to create a class like architecture on javascript but stuck on a point. Here is the code: var make = function(args) { var priv = args.priv, cons = args.cons, pub = args.pub; return function(consParams) { var priv = priv, cons = args.cons; cons.prototype.constructor = cons; cons.prototype = $.extend({}, pub); if (!$.isFunction(cons)) { throw new Hata(100001); } return new cons(consParams); } }; I'm trying to add the priv variable on the returned function objects's scope and object scope of the cons.prototype but I could not make it; Here is the usage of the make object: var myClass = make({ cons: function() { alert(this.acik); }, pub: { acik: 'acik' }, priv: { gizli: 'gizli' } }) myObj = myClass(); PS: Please forgive my english...

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• How can I use Moose with Test::Class?

  - by rassie

  I'm currently refactoring a test suite built up by a colleague and would like to use Test::Class[::Most] while doing so. As I started I figured out I could really use a couple of Moose roles to decouple code a little bit. However, it seems it's not quite possible -- I'm getting error messages like this one: Prototype mismatch: sub My::Test::Class::Base::blessed: none vs ($) at /usr/lib/perl5/vendor_perl/5.8.8/Sub/Exporter.pm line 896 So the question is: can I use Moose together with Test::Class and if so, how? PS: The code goes like this: package My::Test::Class::Base; use Moose; use Test::Class::Most; with 'My::Cool::Role'; has attr => ( ... );

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• Control within ascx is null when ascx is added from codebehind

  - by Snoop Dogg

  I am having difficulties how to construct my question, but if I have to put it simply the situation is that I have categories of products. I have an aspx with a repeater on the left that lists the categories. And I want the products to be listed on the right. Category number is variable so I made an ascx with a DataList in it. When I try to do foreach category, ascx = new ascx(); then the DataList within this ascx control is null. ps: what I want to do is to preload all the products (thre is not much) and hide the divs and fadein fadeout them using jQuery when a category div is clicked. rightnow it is using jQuery.load(); and I don't like how the images load, cuz they download from top to bottom. Progressive gifs alsdo not an option. site demo is here http://techlipse.net/test/ledart Thanks a lot in advance...

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• Why does forward declaration not work with classes?

  - by eSKay

  int main() { B bb; //does not compile (neither does class B bb;) C cc; //does not compile struct t tt; //compiles class B {}; struct s { struct t * pt; }; //compiles struct t { struct s * ps; }; return 0; } class C {}; I just modified the example given here. Why is that the struct forward declarations work but not the class forward declarations? Does it have something to do with the namespaces - tag namespace and typedef namespace? I know that the structure definitions without typedefs go to tag namespace. Structures are just classes with all public members. So, I expect them to behave similarly.

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• How To: Referencing LAPACK library from FORTRAN 95 in Cygwin

  - by cholmgreen

  I have a FORTRAN 95 program that needs to make some calls to the LAPACK library. I recently found out that Cygwin because it can install LAPACK as an extra option. Well, LAPACK exists in the /lib/lapack/ directory as "cyglapack.dll". Having only a very informal training in Fortran programming, I have no idea how to reference a .dll library as opposed to a .mod module. Any suggestions or directions to articles answering my question are GREATLY appreciated! (P.S. I did search first.. I don't think I know the proper terms to get a useful article.)

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• Migrate existing ROR app to GAE

  - by zengr

  I have managed to run a basic rails app1 on App Engine using: http://gist.github.com/268192 So, on my basic app2, I install CE, which works fine on local machine. (communityengine.org) But, when I follow the same steps on my actual app2, where community_engine plugin is installed and all the gems are frozen, the app engine installer script asks for to over write various files like boot.rb, routes.rb, which I don't allow. So, as expected, when I publish the rails + ce app to GAE, it's not published and it also screws the local installation of CE on app2. So, the problem is obvious, CE uses ActiveRecord, and GAE uses DataMapper. So, my question can also be rephrased as: Can we migrate an existing ROR App using Active Record to GAE which uses DataMapper? PS: This is my first project on ROR and GAE.

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• Situations to prefer Apache Lucene over Solr?

  - by Karussell

  There are several advantages to use Solr (out-of-the-box facetting search, grouping, replication, http administration vs. luke, ...). Even if I embed a search-functionality in my Java application I could use SolrJ to avoid the HTTP trade-off when using Solr. So, when would you recommend to use "pure-Lucene"? Does it have a better performance or requires less RAM? Is it better unit-testable? PS: I am aware of this question.

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• Flex TileList control, image loading issue

  - by ckenan

  I have a flex 3 TileList in wich a load several image (employee's headshot pictures). The image I'm loading in the TileList are stored in a DataBase (I use the ByteArray class and a Base 64 encoding to store the images in the DB). When I load the images in the TileList from the DB, there is no problem they are displayed correctly, but when I scroll down in the TileList and scroll up again, the position of the images is changing, so for example the image in first position can be now in the 3rd and so on .... Does somebody knows how to fix that ? Thanks in advance! PS : Here is the code of the ItemRenderer for the TileList private function init():void { img.load(data.imageData); } ]]

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• shell script redirect output

  - by Andy

  I have a shell script to monitor process due to preventing the process closed. If the process is closed, that script will restart it. BTW, when the system starts, the crontab will run the script automatically. How can I get the output of the process which started by the shell script? #!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH while : do if [ -z "$(ps -ef | grep -v grep | grep 225.0.6.4)" ]; then date +"%m-%d-%y %T" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" /usr/bin/tzap -a 1 -c /home/andy/channels.conf -o - -r -p "D" | /home/andy/ffmpeg -f mpegts -i pipe:0 -c:v libx264 -preset medium -crf 23 -bufsize 3000K -minrate 1200k -maxrate 1200k -pix_fmt yuv420p -g 50 -s 1024x768 -acodec libmp3lame -b:a 128k -ac 2 -ar 44100 -f mpegts udp://225.0.6.4:50000 & fi sleep 1 done

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• Looking for an automated logging tool/library for .NET!

  - by tsocks

  Hello, I'm looking for an library/tool for .NET that logs almost everything that happens in my C# application (Windows Form). The problem is that I'm delivering an application to a client (Windows XP) and after doing some task, that classic Microsoft error window appears: "ApplicationName has encountered a problem and needs to close. We are sorry for the inconvenience" I'm currently handling my application exceptions, but this is something external and I can't get anything from that error, so I would like any automated library that helps me with that. It would work if it logs each line of code executed, orr just log what line was executing before that error appeared, or something that could give me more info about that error. Thank you! P.S: It's a multithreaded application, and have to Timer controls (one for watching a folder every 5secs, and another for watching thread list...). I'm using Windows 7 here and everything seems to work ok.

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• Pros and cons of programmatically enforcing foreign key than in database

  - by Jeffrey

  It is causing so much trouble in terms of development just by letting database enforcing foreign key. Especially during unit test I can’t drop table due to foreign key constrains, I need to create table in such an order that foreign key constrain warning won’t get triggered. In reality I don’t see too much point of letting database enforcing the foreign key constrains. If the application has been properly designed there should not be any manual database manipulation other than select queries. I just want to make sure that I am not digging myself into a hole by not having foreign key constrains in database and leaving it solely to the application’s responsibility. Am I missing anything? P.S. my real unit tests (not those that use mocking) will drop existing tables if the structure of underlying domain object has been modified.

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• Using java classes in Grails

  - by RN

  I have a Java\Spring\Hibernate application - complete with domain classes which are basically Hibernate POJOs There is a piece of functionality that I think can be written well in Grails. I wish to reuse the domain classes that I have created in the main Java app What is the best way to do so ? Should I write new domain classes extending the Java classes ? this sounds tacky Or Can I 'generate' controllers off the Java domain classes ? What are the best practices around reusing Java domain objects in Grails\Groovy I am sure there must be others writing some pieces in grails\groovy If you know about a tutorial which talks about such an integration- that would be awesome !!! PS: I am quite a newbie in grails-groovy so may be missing the obvious. Thanks !!!

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• dojo datagrid will make the page "jump" when sorting is changed

  - by Select0r

  Hi, I have a Dojo Datagrid in one of my pages (which contains more content) and the following problem occurs: As soon as I click on a column header to change the sorting, the page will jump up as if I clicked on some HTML-anchor. Funny enough, the page jump will make the grid show only the first two rows after it jumped, instead of (e.g.) have the grid start at the top of the page after the jump, which is the expected behaviour if an anchor is used. The problem occurs in different browsers (tested: Firefox 3.6, Opera 10, IE6), so I guess it might be a Dojo-problem/-bug. Any ideas to make this annoying behaviour stop? Greetings, Select0r PS: this seems to describe a similar problem, only for JQuery (and unfortunately without a solution, too)

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• Why is C# suddenly so popular?

  - by leeand00

  Why is C# suddenly so popular? There's been like a repeat explosion in the blogs lately about it; It reminds me of the earlier part of this decade when all of those frameworks for Java came out like Spring, JSF, Hibernate, Struts, Struts2, Tapestry etc... I've actually been thinking about learning C#, and it seems to contain a lot of qualities that it has gotten from Java (aside from it being completely cross-platform) But, it almost seems like a step backwards to me...its not totally multi-platform, a language that's run by a corporation rather than a community... (But, knowing this isn't the case, I've come here to find out why it isn't...) P.S. And yes, I am aware of the Mono project so that you can run it on Linux, but isn't it always behind the curve? A new version of Java would be supported on all the platforms.

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• [JS] XMLHttpRequest problem

  - by mcco

  I am trying to do "POST" with XMLHttpRequest in a firefox extension, and after that I try to get the "Location" header and open it in a new tab. For some reason, the XMLHttpRequest doesn't contain a location header. My code function web(url,request) { var http = new XMLHttpRequest(); http.open('POST',url,true); http.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); http.onreadystatechange=function() { if(http.readyState == 2) { alert(http.getResponseHeader("Location")); } } http.send(request); } Also, if I change the alert to getAllResponseHeaders() to see all headers, I just don't see the location header there. If I try to spy on the request of the original site with Firebug, it does show me the location header in the response. Please help me resolve my issues. Thanks :) P.S. I'm also unable to open a link in new tab using window.open(url, this.window.title);, but as that's not directly related to the rest of this I'll post a separate question to ask about it.

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• calling a function or communicating from one browser window to another using Jquery / javascript

  - by Shanon

  Hello, I am designing a web site that plays music. The music player itself will be in a separate window along with the now playing list. I want to be able to refresh the now playing list when a new song is added to it from the main window. Essentially I need to figure out how to communicate between the two windows. I was only able to find one plugin on line that defines the player page as a child of the main page but then this reference would be lost after the parent page i.e my main page was refreshed. So this was not very useful to me and I'm kinda lost atm. Any help is greatly appreciated PS: here is the link to that plugin (http://www.sfpeter.com/2008/03/13/communication-between-browser-windows-with-jquery-my-new-plugin/)

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• Can I check wheter Linq 2 SQL's DataContext is tracking entities?

  - by Thomas Jespersen

  We want to throw an exception, if a user calls DataContext.SubmitChanges() and the DataContext is not tracking anything. That is... it is OK to call SubmitChanges if there are no inserts, updates or deletes. But we want to ensure that the developer didn't forget to attach the entity to the DataContext. Even better... is it possible to get a collection of all entities that the DataContext is tracking (including those that are not changed)? PS: The last question I asked were answered with: "do it this way instead"... please don't :-)

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• PHP - Opening uploaded DOCX files with the correct MIME TYPE

  - by user270797

  I have users uploading DOCX files which I make available for download. The issues we have been experiencing is the unknown mime types of DOCX files which causes IE to open these docs as Zip files. It is running on a Windows/IIS server. Because this is a shared host, I cannot change any server settings. I was thinking that I could just write some code that would handle DOCX files, perhaps custom output: if (extension=docx) { header("Content-Disposition: attachment; etc) header('Content-Type: application/application/vnd.openxmlformats-officedocument.wordprocessingml.document'); Output the file contents etc } Would this be a viable solution?? If so, can someone help fill in the gaps? (PS I know the above syntax is not correct, just a quick example)

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• Redis, it's memory limit and persistance question?

  - by Kirzilla

  Hello, I'm rather new to Redis and before using it I'd like to learn some important (as for me) details on it. So.... Redis is using RAM and HDD for storing data. RAM is used as fast read/write storage, HDD is used to make this data persistant. When Redis is started it loads all data from HDD to RAM or it loads only often queried data to the RAM? What if I have 500Mb Redis storage on HDD, but I have only 100Mb or RAM for Redis. Where can I read about it? Thank you PS: Sorry for my English

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