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• ActiveRecord fundamentally incompatible with composite keys?

  - by stimms

  I have been attempting to use subsonic for a project on which I'm working. All was going quite well until I encountered a link table with a composite primary key. That is a key made up of the primary keys of the two tables it joins. Subsonic failed to recognize both keys which was problematic. I was going to adjust subsonic to support compound keys but I stopped and though "Maybe there is a reason for this". Normally active record relies on a single primary key field for every record, even in link tables. But is this necessary? Should I just give up on active record for this project or continue with my modifications?

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• Accorian menu is not working properly

  - by Zerotoinfinite

  Hi, I am using accordin menu in my site, placed in Master Page, It has 4 pane, each pane have multiple links. it was working fine previously. But suddenly it is displaying this error message There is no source code available for the current location. It's is asking for show assembly. When I clicked on that I got a stopage at the stack 0000001a mov eax,dword ptr [ebp-0Ch] -- I am really not sure what does it means. Also, there are several links in accordin menu, after clicking on anyone of the link I am not able to click the other link, might be because of the above reason. Please help

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• Is there anyway of making json data readable by a Google spider?

  - by leeand00

  Is it possible to make JSON data readable by a Google spider? Say for instance that I have a JSON feed that contains the data for an e-commerce site. This JSON data is used to populate a human-readable page in the users browser. (I.E. The translation from JSON data to human displayed page is done inside the users browser; not my choice, just what I've been given to work with, its an old legacy CGI application and not an actual server-side scripting language.) My concern here is that, the google spiders will not be able to pickup/directly link to the item in question when a user clicks on it in google, being presented with an index page full of all the items, rather than being linked directly to the item they clicked on. Is there anyway of "informing" the google spider in the JSON that what they should feed the user a different link?

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• GCC: Simple inheritance test fails

  - by knight666

  I'm building an open source 2D game engine called YoghurtGum. Right now I'm working on the Android port, using the NDK provided by Google. I was going mad because of the errors I was getting in my application, so I made a simple test program: class Base { public: Base() { } virtual ~Base() { } }; // class Base class Vehicle : virtual public Base { public: Vehicle() : Base() { } ~Vehicle() { } }; // class Vehicle class Car : public Vehicle { public: Car() : Base(), Vehicle() { } ~Car() { } }; // class Car int main(int a_Data, char** argv) { Car* stupid = new Car(); return 0; } Seems easy enough, right? Here's how I compile it, which is the same way I compile the rest of my code: /home/oem/android-ndk-r3/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin/arm-eabi-g++ -g -std=c99 -Wall -Werror -O2 -w -shared -fshort-enums -I ../../YoghurtGum/src/GLES -I ../../YoghurtGum/src -I /home/oem/android-ndk-r3/build/platforms/android-5/arch-arm/usr/include -c src/Inheritance.cpp -o intermediate/Inheritance.o (Line breaks are added for clarity). This compiles fine. But then we get to the linker: /home/oem/android-ndk-r3/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin/arm-eabi-gcc -lstdc++ -Wl, --entry=main, -rpath-link=/system/lib, -rpath-link=/home/oem/android-ndk-r3/build/platforms/android-5/arch-arm/usr/lib, -dynamic-linker=/system/bin/linker, -L/home/oem/android-ndk-r3/build/prebuilt/linux-x86/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0, -L/home/oem/android-ndk-r3/build/platforms/android-5/arch-arm/usr/lib, -rpath=../../YoghurtGum/lib/GLES -nostdlib -lm -lc -lGLESv1_CM -z /home/oem/android-ndk-r3/build/platforms/android-5/arch-arm/usr/lib/crtbegin_dynamic.o /home/oem/android-ndk-r3/build/platforms/android-5/arch-arm/usr/lib/crtend_android.o intermediate/Inheritance.o ../../YoghurtGum/bin/YoghurtGum.a -o bin/Galaxians.android As you can probably tell, there's a lot of cruft in there that isn't really needed. That's because it doesn't work. It fails with the following errors: intermediate/Inheritance.o:(.rodata._ZTI3Car[typeinfo for Car]+0x0): undefined reference to `vtable for __cxxabiv1::__si_class_type_info' intermediate/Inheritance.o:(.rodata._ZTI7Vehicle[typeinfo for Vehicle]+0x0): undefined reference to `vtable for __cxxabiv1::__vmi_class_type_info' intermediate/Inheritance.o:(.rodata._ZTI4Base[typeinfo for Base]+0x0): undefined reference to `vtable for __cxxabiv1::__class_type_info' collect2: ld returned 1 exit status make: *** [bin/Galaxians.android] Fout 1 These are the same errors I get from my actual application. If someone could explain to me where I went wrong in my test or what option or I forgot in my linker, I would be very, extremely grateful. Thanks in advance. UPDATE: When I make my destructors non-inlined, I get new and more exciting link errors: intermediate/Inheritance.o:(.rodata+0x78): undefined reference to `vtable for __cxxabiv1::__si_class_type_info' intermediate/Inheritance.o:(.rodata+0x90): undefined reference to `vtable for __cxxabiv1::__vmi_class_type_info' intermediate/Inheritance.o:(.rodata+0xb0): undefined reference to `vtable for __cxxabiv1::__class_type_info' collect2: ld returned 1 exit status make: *** [bin/Galaxians.android] Fout 1

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• Google analytics tracking example.com and www.example.com

  - by danferth

  Our website is set up to direct all traffic for www.example.com to example.com with a line in the htaccess file. With google analytics new in page analytics feature we are thinking of removing the line and allowing people to visit www.example.com as well to play with the new features. My question is this. How will this change affect our analytics data. -will nothing change and we can start using the new feature with our existing data -Are the two domains tracked separately and we will have to start over with www.example .com Any help would be great, as I can find nothing on googles help site covering this. Let me know if you need further explanation.

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• Rails 3.1. Cocoon link_to_add_association example needed

  - by BazZy

  pls show any example of using Cocoon's 'link_to_add_association' with html_options. https://github.com/nathanvda/cocoon Documentation says: html_options: extra html-options (see link_to) There are two extra options that allow to conrol the placement of the new link-data: data-association-insertion-node : the jquery selector of the node data-association-insertion-position : insert the new data before or after the given node. But i can not understand what to do, if i want insert partial just before my "add element" link. Not just after parent's div begin. This not gonna work: <%= link_to_add_association "add element", f, :production_years, :position = "after_all" %

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• Display lable character by character using javascript

  - by Muhammad Sajid

  Hi, I am creating Hang a Man using PHP, MySQL & Javascript. Every thing is going perfect, I get a word randomly from DB show it as a label apply it a class where display = none. Now when I click on a Character that character become disable fine which i actually want but the label-character does not show. My code is: <link href="style.css" rel="stylesheet" type="text/css" media="screen" /> <?php include( 'config.php' ); $question = questions(); // Get question. $alpha = alphabats(); // Get alphabets. ?> <script language="javascript"> function clickMe( name ){ var question = '<?php echo $question; ?>'; var questionLen = <?php echo strlen($question); ?>; for ( var i = 0; i < questionLen; i++ ){ if ( question[i] == name ){ var link = document.getElementById( name ); link.style.display = 'none'; var label = document.getElementById( 'questionLabel' + i ); label.style.display = 'none'; } } } </script> <div> <table align="center" style="border:solid 1px"> <tr> <?php for ( $i = 0; $i < 26; $i++ ) { echo "<td><a href='#' id=$alpha[$i] name=$alpha[$i] onclick=clickMe('$alpha[$i]');>". $alpha[$i] ."</a>&nbsp;</td>"; } ?> </tr> </table> <br/> <table align="center" style="border:solid 1px"> <tr> <?php for ( $i = 0; $i < strlen($question); $i++ ) { echo "<td class='question'><label id=questionLabel$i >". $question[$i] ."</label></td>"; } ?> </tr> </table> </div>

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• webui for mercurial (hg)

  - by Extreme

  i'm looking for a good webui tool for mercurial. i've found this link Mercurial with WebUI but what i'm looking for is something that has the ability to do check-in and check-out per file like the PVCS. any suggestions? thanks Edit: Here's the link for PVCS. http://en.wikipedia.org/wiki/PVCS It's been around 4 years since I last used PVCS and a lot has probably changed but here's as far as I remember. It has a web application wherein a developer can check out a single file. If this file is checked-out, it will be locked to this developer and no other developer can check it out. Then can download the source but they won't be able to check it in unless the original developer (that checked-out the file) checks it in.

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• Open GL Android frame-by-frame animation tutorial/example code

  - by Trick

  My first question was asked wrong, so I need to ask again :) I found out, that I will have to do an OpenGL animation for my Android game. The closest (known) example is Talking Tom (but I don't know how they did the animations). I have large PNGs which I would like to put into a animation. For example - 30 PNGs 427×240px at 8 FPS. I know some things already about Open GL, but I am used to learn from example code. And it is quicker that way (so I don't need to invent hot water all over again :)). Does anybody has any points to direct me?

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• Research about best way to present multiple products on one page

  - by Michael Dibbets

  I am updating a webshop page. This is a fairly simple page that displays all the products that we currently sell. The page in development is visible here ( https://www.ortho.nl/wwebshop ). Now I was curious, and since I can't find anything via google etc..(probaly don't know the right keywords) what the best way is to present multiple products on one page. Should you use borders? Should you use colours? Which colours? what kind of tweaks will direct the customers attention to the right place? Does anyone know from experience or via research(and could you point me in the right direction to find that research) what the best way to present products is so conversion/clickthrough is optimised?

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• kubuntu - what's the best smplayer configuration for best quality in hd movies (mkv)

  - by Frank

  I have ubuntu x64 13.04 with kde 4.11 and smplayer v0.8.6 and the last mplayer version from ppa. I have ATI video card HD6870 MSI with fglrx driver v13.4. My kde settings are: Composition mode: Opengl 3.1 graphic system qt: Raster scaling mode: precise Vsync: auto So what's the best configuration for quality over performace in smplayer according to my system specs? For example what do I have to set for the following options? enable postprocessing by default and postprocessing quality output driver Deinterlacing method software equalizer direct rendering double buffering draw video using slices threads for decoding (MPEG-1/2 and H.264 only loop filter use CoreAVC Thanks

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• How to make WordPress "Add/Edit Post" form more Tumblr like?

  - by Eliot Sykes

  Hi, WordPress requires you give each blog post at least two fields: a title and text body content. I'm wondering how to modify WordPress admin so I can sometimes enter a single field for a blog post, in particular a URL, without WordPress requiring a title (related but not the point of this question: a custom theme would then know how to handle a post that only contained a URL, it would treat it like a "Link" post in Tumblr). Ideally it'd be good if the "add/edit post" form could be modified so it only contains this single URL/Link field when this is wanted. I'm guessing this is possible through a plugin but I'm not certain. I'm hoping some smart WordPress devs are here to share and brainstorm ideas for how this could be done. Thanks in advance for any help, Eliot

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• jquery slideUp() and slideDown() problems

  - by nhoss2

  Hello, I am very crap at jquery, and im having some trouble with the slideUp() and slideDown() animations. I have been working on a vCard design similar to tim van damme's site. here is a the link to the design: link. When you click on the portfolio or work button, the text or image appears first before the div finishes sliding down. I would like the div to slide down first and then show the text... This currently works when you click on the contact button or the home button on the top navigation bar, but does not work for the portfolio button and the work button. I have a hunch that this may not even be a jquery problem, and that its just my bad css code, but I have skimmed through the css code, and changed things like z-index, but that hasnt worked.

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• JQUERY nav problem

  - by turborogue

  This is part 2 of a different problem that I was having... Hopefully this is about as simple as you can get, but I'm clearly missing something..... The gist is, I'm trying to get a mouseover effect using jquery/css with a mix of background images and colors. It's mostly there, but the issue that I'm having at the moment is, I mouseover the main nav = fine, I mouseover the subnav = fine, I mouse BACK over to that same main nav element, and it's OFF state kicks in instead of remaining ON as it's supposed to... I pasted my code here (since it's kinda long, and apparently I can only paste one link....) http://tinypaste.com/2222e -- a link to my most recent efforts is at the bottom of that pastebin -- hopefully the gist of what I'm trying to do will be clear. I'll keep plugging away for a while, but any help would be greatly appreciated!!:)

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• How does refer(r)er work technically?

  - by NoozNooz42

  I don't understand: how are webserver and trackers like Google Analytics able to track referrals? Is it part of HTTP? Is it some (un)specified behavior of the browsers? Apparently every time you click on a link on a web page, the original web page is passed along the request. What is the exact mechanism behind that? Is it specified by some spec? I've read a few docs and I've played with my own Tomcat server and my own Google Analytics account, but I don't understand how the "magic" happens. Bonus (totally related) question: if, on my own website (served by Tomcat), I put a link to another site, does the other site see my website as the "referrer" without me doing anything special in Tomcat?

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• Browser caching issue on a https site pressing f5

  - by sushil bharwani

  i am working on a website where i have content entry form. This form contains a tiny mce control. The control is composed of some 40-50 files. The testing reported that the entry form loads slow and evertime shows up 50 files loading to completely load the page. Is there a way i can decrease this time. I have taken help of browser caching by setting the expires header of static content to very far date. When i access the form through its link second or later times it loads fast without saying 40 files remaining. but when i do f5 it reloads the entire page. I m confused as to how is f5 different from clicking on the link. Just to add my url is https.Any suggestion to increase the performance of this form will be great.

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• Embedding an existing exe file into another program

  - by Milad

  Is there a way to link an existing .exe file with other C++ source files during compilation? What I'm actually trying to do is to compress and decompress some files in my console program using LZMA(7zip) SDK but unfortunately it's very difficult to use for a newbie. There is a command line version of LZMA called 7za.exe and I am wondering if I can somehow embed it into my program and use it like a function. It can be easily used with system() function (which seems to be a very dangerous thing to use) but then if I send my program to someone who doesn't have 7za.exe in the right folder it won't work. I came across CreateProcess() function in windows.h header files but it seems to achieve what system() does in a more proper and advanced way. I don't know if it can actually link the exe file like an object file during compilation

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• Upgrade Workshop in Sydney - Recap

  - by Mike Dietrich

  Late, but hopefully not too late, a big THANK YOU to everybody who did attend the Upgrade and Migration Workshop in Sydney at the Cliftons past week. You were a really good crowd, thanks for all your questions, the great conversations in the breaks, thanks to the local marketing team for the excellent organization - and we'll looking forward to see you next time again with all your databases then live on Oracle Database 11.2  To download the slides please find them in the Slides Download Center to your right - or use the direct link to download the workshop slide deck. And I really don't understand how you can go to daily work (or to a workshop) with such beaches nearby ... I would immediatelly change my job profile Honestly, Sydney is really a great place. Australia and New Zealand generally are wonderful places and we've met so many great people in Perth, Brisbane, Melbourne, Wellington, Sydney and during our travel in between. Just if there wouldn't be over 20 hours pure flight time in between Germany and Down Under Hope to see you all again next time for 12c -Mike

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• htaccess handler

  - by Steve

  Hi Everyone, I have strange problem that need help. It is about rewrite using apache. Here my .htaccess content file: Options +FollowSymLinks ## This is an example .htaccess-file ## To get everything automatically parsed, the following line is needed #set link auto on ##From now on, every RewriteRule gets recognised. RewriteEngine on RewriteRule captcha(\.html){0,1}$ captcha.php [QSA,L] RewriteCond %{SCRIPT_FILENAME} !-s RewriteCond %{SCRIPT_FILENAME} !-d RewriteCond %{SCRIPT_FILENAME} !-f Rewriterule (.*) handler.php ##You can also change the text before the real link by the following line With this rule, I am hoping that all request except there is exists in file or directory will be directed to my custom handler: handler.php. Everyting just fine as expected but this case not: http://../test/form_login/query=%2Ftest%2Findex.php%3Fpage%3Dform& Root url: /test/, form_login is not file or directory index.php is exists in the root. Apache response with : 404 Page Not Found Thanks for any of your help. Regards, Steve

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• Python - Number of Significant Digits in results of division

  - by russ

  Newbie here. I have the following code: myADC = 128 maxVoltage = 5.0 maxADC = 255.0 VoltsPerADC = maxVoltage/maxADC myVolts = myADC * VoltsPerADC print "myADC = {0: >3}".format(myADC) print "VoltsPerADC = {0: >7}".format(VoltsPerADC) print VoltsPerADC print "myVolts = {0: >7}".format(myVolts) print myVolts This outputs the following: myADC = 128 VoltsPerADC = 0.0196078 0.0196078431373 myVolts = 2.5098 2.50980392157 I have been searching for an explanation of how the number of significant digits is determined by default, but have had trouble locating an explanation that makes sense to me. This link link text suggests that by default the "print" statement prints numbers to 10 significant figures, but that does not seem to be the case in my results. How are the number of significant digits/precision determined? Can someone shed some light on this for me. Thanks in advance for your time and patience.

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• Is it possible to remember the filename from a fileupload field and then later launch that file via

  - by Pieter Breed

  I have a HTML file upload field from which I'm reading the file name of the file that the user specifies. The actual contents of the file is never uploaded. At a later stage, is it possible to construct a link using this file name information so that if the user clicks on this link, the original file is launched into a new browser window? If not, what are the reason for disallowing this behaviour? The purpose of such a feature is to store links to documents that are available on a mapped local drive or a network share.

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• security roles in grails portlets

  - by srinath

  Hi, How to include security roles in grails portlets for liferay ? After deploying war in tomcat i added manually these lines for roles liferay-portlet.xml : <role-mapper> <role-name>administrator</role-name> <role-link>Administrator</role-link> </role-mapper> portlet.xml : <security-role-ref> <role-name>administrator</role-name> </security-role-ref> But How to add these roles settings in grails app before creating war ?? Please suggest me . thanks in advance sri..

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• How to upgrade server from 8.10 to newer version?

  - by DisgruntledGoat

  I have a server still running Ubuntu 8.10. If I run apt-get update I get a bunch of 404 errors on the packages. I've asked a few questions on Server Fault but got nowhere. Here's what I've done: Run apt-get update which returns errors like: Err http://gb.archive.ubuntu.com intrepid/main Packages 404 Not Found [and same for many other packages] Run do-release-upgrade which returns: Checking for a new ubuntu release Failed Upgrade tool signature Failed Upgrade tool Done downloading extracting 'jaunty.tar.gz' Failed to extract Extracting the upgrade failed. There may be a problem with the network or with the server. Edited /etc/update-manager/release-upgrades and changed from Prompt=normal to Prompt=lts (as suggested here). Running do-release-upgrade after this returns: Checking for a new ubuntu release current dist not found in meta-release file No new release found So basically, it seems like I cannot upgrade because my current distro is out of date and not supported. Is there a way to upgrade direct to 10.x or 11.x?

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• MOSS Collect Data from user custom email

  - by nav

  Hi, I am trying to send out a custom email, after the Collect Data from user step in my primary workflow which starts when an item in list X is created. I have created a secondary workflow to start when a new Task item is created (this is created by the Collect Data from user action in the primary workflow). But I am having problem how I retrieve the information on the list X. I know the ID of the referenced item in List X is stored in a URL within the "Link" column in the Tasks lists. But can't see any string manipulation function that will grab this ID so I can use it to link back to relevant item in List X. Is there an easier way to do this? Many Thanks, Nav

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• handling a GET error properly

  - by Andrew Heath

  I have a website that takes two primary get strings: ?type=GAME&id=SomeGameID ?type=SCENARIO&id=SomeScenarioID for reasons unknown, I have recently begun receiving requests for erroneous get strings from both Yandex and Baidu. They are always in the form of: ?type=GAME&id=SomeScenarioID None of my users are triggering these errors, so I am (sort of) confident that this is not due to an HTML template error somewhere on my part. There is also no HTTP_REFER showing up in the $_SERVER array, so I'm guessing these are direct requests from bad dbase data on their part. I see two options for dealing with these bad requests, and would like to know which is recommended... or if there are other, better options I have not thought of: simply 404 the request, since it is incorrect redirect the request to ?type=SCENARIO&id=SomeScenarioID because the scenario IDs are always valid, the breakage is due to asking for the wrong type.

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