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• How can I loop over a query for a specific number of times that may be greater than the result?

  - by JS

  I need to loop over a query exactly 12 times to complete rows in a form but rarely will the query return 12 rows. The cfquery endRow attribute doesn't force the loop to keep going if the result is < 12. If it did that would be ideal to use something like cfloop query="myQuery" endRow="12"... The 2 options that I have now are to skip the loop and write out all 12 rows but that results in a lot of duplicate code (there are 20 columns), or do a query of queries for each row which seems like a lot of wasted processing. Thanks for any ideas.

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• pass custom environment variables to System.Diagnostics.Process

  - by Mike Ruhlin

  I'm working on an app that invokes external processes like so: ProcessStartInfo startInfo = new ProcessStartInfo(PathToExecutable, Arguments){ ErrorDialog = false, RedirectStandardError = true, RedirectStandardOutput = true, UseShellExecute = false, CreateNoWindow = true, WorkingDirectory = WorkingDirectory }; using (Process process = new Process()) { process.StartInfo = startInfo; process.Start(); process.BeginErrorReadLine(); process.BeginOutputReadLine(); process.WaitForExit(); return process.ExitCode; } One of the processes I'm calling depends on an environment variable that I'd rather not require my users to set. Is there any way to modify the environment variables that get sent to the external process? Ideally I'd be able to make them visible only to the process that's running, but if I have to programmatically set them system-wide, I'll settle for that (but, would UAC force me to run as administrator to do that?) ProcessStartInfo.EnvironmentVariables is read only, so a lot of help that is...

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• Forcing a method to be non-transactional in JPA (Eclipselink)

  - by rhinds

  Hi, I am developing an application using Eclipselink and as part of the app I need to be able to manipulate some of the objects which involves changing data without it being persisted to the database (i merging/changing objects for some batch generation processes). I am reluctant to change the data in the Entity objects, as there is a risk that even though i have not marked the methods as @Transactional, this method could in the future be inadvertantly called from within a transactional method and these changes could be persisted. So my question is, is there anyway to get around this? Such as force a method to always be non-transactional regardless; terminate any transactionality as soon as the method is started; etc. I know there is a .detach() method that can detach the objects from the Entity Manager, however, there are many objects and this seems like a potentially error prone fail-safe on my code.

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• Commit SVN working copy into Git repository

  - by mchr

  I am currently working on a checked out SVN project along with some plugins for that project. I want to keep all of this work - including the current version of my SVN checkout within a single git repository. I thought I had achieved this by checking in the SVN working copy to git. However, when I did a pull on a new computer the SVN working copy had been corrupted. In particular it seemed that git had not checked it any of the .svn/tmp/ and .svn/props/ folders. I have now made a fresh checkout of the SVN project. Is there a way for me to add the ignored folders to my git repo (git status ignores them even though my .gitignore is empty) or force SVN to regenerate them?

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• PhysX: Joint friction/"stiff" joints

  - by SigTerm

  I'm working with physx (trying to add ik to ragdoll) at the moment. For some reason, all ragdoll joints are frictionless, and as a result, ragdoll tend to "wobble", especially when it is hung in the air and is connected to several moving kinematic actors. I would like to add friction to the joints and make them "stiff". Imagine a door (with extremely rusty hinge) that needs to be kicked several times to be open - i.e. it rotates around the hinge, but not much, quickly stops, and large force is required to make it rotate. Or think about art manikins (see google images for pictures) - their limbs move around, but they do not swing around freely. Unfortunately, I can't find anything related to joint friction in physx. I've checked documentation, google, and headers, and couldn't find anything useful. So, how do I implement stiff joints/joint friction with physx? (I think) I've seen physx games without that problem, so apparently there should be some way to do that.

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• Algorithm for calculating indefinite integrals

  - by mbac32768

  Suppose I have an integral that's bounded on one (or both) ends by (-)infinity. AFAICT, I can't analytically solve this problem, it takes brute force (e.g. using a Left Riemann Sum). I'm having trouble generalizing the algorithm so that it sets the proper subdivisions; I'll either do far too much work to calculate something trivial, or not do nearly enough and have huge aliasing errors. Answering in any language is cool, but maybe someone with better google-fu can end this quickly. :) Is what I'm looking for as impossible as trying to measure the British coastline?

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• Weird landscape UITabBarController Application startup

  - by Stefano Verna

  Hi there. My application is quite simple, but I have some problems when it starts. I setted in the Info.plist to be landscaped, but it seems to ignore the order. In fact, when the app is loading the Simulator is landscaped, but then it returns in portrait mode. This is the hierarchy of the views and controllers: MainViewController (extends UITabBarController just to override shouldAutorotateToInterfaceOrientation:) Three extended UITableViewControllers as tabs (also those have the shouldAutorotateToInterfaceOrientation correctly setted up). If I kinda force the orientation of the device to Landscape with: [[UIDevice currentDevice] setOrientation: UIInterfaceOrientationLandscapeRight]; Then for an instant the Simulator flashes in portrait mode, and then it goes landscaped. The problem is that in this way, the auto-rotation animations gets started, which is something I cannot tollerate. I just want a fixed, landscaped application. Any clues? Am I missing something?

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• Occurs in MYOB Accounting Plus 18.5 among other versions. Cannot get the function address for " MAPI

  - by sjw

  I've installed MYOB on SBS server 2003. Why? Because the users were using offline files and it turned out there was about 7 versions of the file both locally and on the server that were out of sync... So the only way I could control the file access was to force RDP to the server... Always using the server file and always in sync... Anyway, this issue occurs in MYOB Accounting Plus 18.5. Cannot get the function address for "MAPISendMail" from "MAPI32.dll" Please check your Mapi installation I just want to send mail from MYOB but I can't - MYOB support is useless and blames everyone else...(i.e. Microsoft and outlook) I have found other people with the same problem whose resolution appears to be to copy MAPI32.dll into myob directory but that hasn't worked for me...

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• How not to lose focus on a login page

  - by Misha Moroshko

  I have a simple login form with 2 input fields: "username" and "password". "username" field is focused by default. The problem is that when user clicks outside "username" or "password" fields, the focus is gone (it is neither on "username" nor on "password" fields"). How can I force the focus to be on these 2 fields only ? In my case, this is a really annoying behavior, so I really want to do this :) Can I do something like: $("*").focus(function() { if (!$(this).hasClass("my_inputs_class")) { // How to stop the focusing process here ? } }); ?

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• load a word document inside window browser

  - by netNewbi3

  Hi, I have a page that dynamically links to a document that opens in a new page (the document is stored in a database as binary data and I loaded using the following code: Response.ClearContent() Response.ContentType = myReader("MIMEType").ToString() Response.AddHeader("Content-Disposition", "inline; filename=" & myReader("Filename")) Response.BinaryWrite(myReader("DocBD")) Response.End() This works ok. However some documents have restricted access and before loading the document the user is redirected to a login page. After entering username and passowrd the document is loaded. If it is a pdf file for example, it loads in the same login page, but when it is a word or excel document it opens outside the browser window and the login page remains in the background. Is ther a way to force a word or excel document to open inside the browser window? Many thanks.

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• problem using default_scope on a model table

  - by DannyRe

  Hey. In my controller/index action I use the following query: @course_enrollments = current_user.course_enrollments This is what my table looks like. It is referencing a course table. The course table has a colum 'title'. create_table "course_enrollments", :force => true do |t| t.integer "user_id", :null => false t.integer "course_id", :null => false t.datetime "created_at" t.datetime "updated_at" end I want to be able to order my course_enrollments by course in my index view. Furthermore Id like to do a default_scope in my model, like this: default_scope :order => 'title asc' any suggestions? Thx for your time

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• How to rename the original file before sending it to user

  - by Manish Jangir

  Actually I have some download link on my website something like "http://www.example.com/somesong.mp3". Now when user click on this link they get somesong.mp3 but I want to change it before they download. I found many scripts that made it possible but didn't get exact right script. Because I want that when the user clicks on download link the file downloading should be started just after the click with the new file name as I want to use. But in all the scripts which I downloaded, first the php processing starts for a few minute (I think it depends on the file size) and then rename it. Is there a way to direct force the file in header with new file name. Thanks.

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• Branching and remote heads in Mercurial

  - by hekevintran

  I created a new branch using this command: hg branch new_branch After the first commit to the new branch, the default branch becomes inactive. If this is pushed the central repository will have only one head which belongs to the new branch. When my colleague pushes his commits on the default branch, he will get this error: pushing to ssh://... searching for changes abort: push creates new remote heads! (did you forget to merge? use push -f to force) Is there anything bad about forcing the push? Why are remote heads bad? How do you work remotely on separate branches and push to one repository?

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• What's the best way to implement one-dimensional collision detection?

  - by cyclotis04

  I'm writing a piece of simulation software, and need an efficient way to test for collisions along a line. The simulation is of a train crossing several switches on a track. When a wheel comes within N inches of the switch, the switch turns on, then turns off when the wheel leaves. Since all wheels are the same size, and all switches are the same size, I can represent them as a single coordinate X along the track. Switch distances and wheel distances don't change in relation to each other, once set. This is a fairly trivial problem when done through brute force by placing the X coordinates in lists, and traversing them, but I need a way to do so efficiently, because it needs to be extremely accurate, even when the train is moving at high speeds. There's a ton of tutorials on 2D collision detection, but I'm not sure the best way to go about this unique 1D scenario.

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• How to remove the file which has opened handles?

  - by SKINDER

  PROBLEM HISTORY: Now I use Windows Media Player SDK 9 to play AVI files in my desktop application. It works well on Windows XP but when I try to run it on Windows 7 I caught an error - I can not remove AVI file immediately after playback. The problem is that there are opened file handles exist. On Windows XP I have 2 opened file handles during the playing file and they are closed after closing of playback window but on Windows 7 I have already 4 opened handles during the playing file and 2 of them remain after the closing of playback window. They are become free only after closing the application. QUESTION: How can I solve this problem? How to remove the file which has opened handles? May be exists something like "force deletion"? Thanks.

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• Possible to fire asp.net validation from jQuery?

  - by Abe Miessler

  I have a form with several text boxes on it. I only want to accept floats, but it is likely that users will enter a dollar sign. I'm using the following code to remove dollar signs and validate the content: jQuery: $("#<%= tb.ClientID %>").change(function() { var ctrl = $("#<%= tb.ClientID %>"); ctrl.val(ctrl.val().replace('$','')) }); asp.net validation: <asp:CompareValidator ID="CompareValidator4" runat="server" Type="Double" ControlToValidate="tb" Operator="DataTypeCheck" ValidationGroup="vld_Page" ErrorMessage="Some error" /> My problem is that when someone enters a dollar sign in the TextBox "tb" and changes focus the validation happens first and THEN the jQuery removes the dollar sign. Is it possible to have the jQuery run first or to force the validation to run again after the jQuery executes?

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• php smarty not passing to browser unless logged in.

  - by Kyle Sevenoaks

  I'm not the best at understanding these things with php and smarty, but this is really annoying. On: http://www.euroworker.no/order, there is meant to be a display of the amount of tax included in the price like: Tax (25%): 772,- Totalt: 3861,- But unless the user has logged in or created a new account, the tax doesn't display. Here is the Smarty code: <tr id="taxtr"> <td>&nbsp;</td> <td>&nbsp;</td> {foreach $cart.taxes.$currency as $tax} <td>&nbsp;</td> <td colspan="4" class="subTotalCaption2">{$tax.name_lang}:&nbsp;</td> <td class="amount taxAmount2">{$tax.formattedAmount}&nbsp;</td> {$cart.formattedTotal.$currency {$GLOBALS.cartUpdate|@array_shift} {/foreach} </tr> I don't know about all the inner workings of this system (Livecart), but is there anything I can do or look through to make it force the calculation/display. Thanks..

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• How do you get SQLAlchemy to override MySQL "on update CURRENT_TIMESTAMP"

  - by nocola

  I've inherited an older database that was setup with a "on update CURRENT_TIMESTAMP" put on a field that should only describe an item's creation. With PHP I have been using "timestamp=timestamp" on UPDATE clauses, but in SQLAlchemy I can't seem to force the system to use the set timestamp. Do I have no choice and need to update the MySQL table (millions of rows)? foo = session.query(f).get(int(1)) ts = foo.timestamp setattr(foo, 'timestamp', ts) setattr(foo, 'bar', bar) www_model.www_Session.commit() I have also tried: foo = session.query(f).get(int(1)) setattr(foo, 'timestamp', foo.timestamp) setattr(foo, 'bar', bar) www_model.www_Session.commit()

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• .htaccess - Block all referrers but one

  - by HarryBeasant

  I am currently running a file sharing website where all files are stored remotely, they are hot linked on the download buttons (on the main site). The current .htaccess force downloads all files, images etc. <FilesMatch "\.(?i:doc|odf|pdf|rtf|txt|png|jpg|jpeg|mp3|mp4|wav|wmv|gif|bmp|avi|mts)$"> Header set Content-Disposition attachment </FilesMatch> What i am trying to do is make sure people cannot hot link the files. So i was thinking, is there a was i can block all other referrers to the domain that stores the files (it's an IP) apart from the main website (a domain). Thanks!

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• Are protected constructors considered good practice?

  - by Álvaro G. Vicario

  I'm writing some little helper classes to handle trees. Basically, I have a node and a special root node that represents the tree. I want to keep it generic and simple. This is part of the code: <?php class Tree extends TreeNode{ public function addById($node_id, $parent_id, $generic_content){ if( $parent = $this->findNodeById($parent_id) ){ $parent->addChildById($node_id, $generic_content); } } } class TreeNode{ public function __construct($node_id, $parent_id, $generic_content){ // ... } protected function addChildById($node_id, $generic_content){ $this->children[] = new TreeNode($this->node_id, $node_id, $generic_content); } } $Categories = new Tree; $Categories->addById(1, NULL, $foo); $Categories->addById(2, NULL, $bar); $Categories->addById(3, 1, $gee); ?> My questions: Is it sensible to force TreeNode instances to be created through TreeNode::addById()? If it's so, would it be good practise to declare TreeNode::__construct() as private/protected?

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• Accented character replacement for search then reinserted afterwards

  - by user314573

  Basically my issue is that users would like to search for a french word that has accented characters but without typing in the accented characters and then have the actual accented word appeared highlighted if found... So for example they would type in "declare" but in the result sets it would look like "déclare" and if found "déclare" would be highlighted. My first thought was to just simply replace the characters with a regex but then I remembered that I would need to re-insert the replaced characters after the search... I was thinking of then using some sort of character map that would track position and the character so that when the search was finshed I could put the result set back to the way it was. This seems a little brute force to me and I was wondering if anyone had a better alternative? I'm using Visual Studio 2005 with this app. Any advice would be much appreciated! Thanks

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• Scraping ASP.NET site with Ruby

  - by JillianK

  I would like to scrape the search results of this ASP.NET site using Ruby and preferably just using Hpricot (I cannot open an instance of Firefox): http://www.ngosinfo.gov.pk/SearchResults.aspx?name=&foa=0 However, I am having trouble figuring out how to go through each page of results. Basically, I need simulate clicking on links like these: <a href="javascript:__doPostBack('ctl00$ContentPlaceHolder1$Pager1$2','')" class="blue_11" id="ctl00_ContentPlaceHolder1_Pager1">2</a> <a href="javascript:__doPostBack('ctl00$ContentPlaceHolder1$Pager1$3','')" class="blue_11" id="ctl00_ContentPlaceHolder1_Pager1">3</a> etc. I tried using Net::HTTP to handle the post, but while that received the correct HTML, there were no search results (I'm probably not doing that correctly). In addition, the URL of the page does not contain any parameters indicating page, so it is not possible to force the results that way. Any help would be greatly appreciated.

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• [PHP] - Lowering script memory usage in a "big" file creation

  - by Riccardo

  Hi there people, it looks like I'm facing a typical memory outage problem when using a PHP script. The script, originally developed by another person, serves as an XML sitemap creator, and on large websites uses quite a lot of memory. I thought that the problem was related due to an algorithm holding data in memory until the job was done, but digging into the code I have discovered that the script works in this way: open file in output (will contain XML sitemap entries) in the loop: ---- for each entry to be added in sitemap, do fwrite close file end Although there are no huge arrays or variables being kept in memory, this technique uses a lot of memory. I thought that maybe PHP was buffering under the hood the fwrites and "flushing" data at the end of the script, so I have modified the code to close and open the file every Nth record, but the memory usage is still the same.... I'm debugging the script on my computer and watching memory usage: while script execution runs, memory allocation grows. Is there a particular technique to instruct PHP to free unsed memory, to force flushing buffers if any? Thanks

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• Map null column as 0 in a legacy database (JPA)

  - by Indrek

  Using Play! framework and it's JPASupport class I have run into a problem with a legacy database. I have the following class: @Entity @Table(name="product_catalog") public class ProductCatalog extends JPASupport { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) public Integer product_catalog; @OneToOne @JoinColumn(name="upper_catalog") public ProductCatalog upper_catalog; public String name; } Some product catalogs don't have an upper catalog, and this is referenced as 0 in a legacy database. If I supply the upper_catalog as NULL, then expectedly JPA inserts a NULL value to that database column. How could I force the null values to be 0 when writing to the database and the other way around when reading from the database?

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• How to prevent lxml prom compacting elements?

  - by Almad

  Having following Python code: >>> from lxml import etree >>> root = etree.XML("<a><b></b></a>") >>> etree.tostring(root) '<a><b/></a>' How can I force lxml to use "long" version? Like >>> etree.tostring(root) '<a><b></b></a>'

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