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• How to use less memory while running a task in Symfony 1.4?

  - by Guillaume Flandre

  I'm using Symfony 1.4 and Doctrine. So far I had no problem running tasks with Symfony. But now that I have to import a pretty big amount of data and save them in the database, I get the infamous "Fatal Error: Allowed memory size of XXXX bytes exhausted" During this import I'm only creating new objects, setting a few fields and saving them. I'm pretty sure it has something to do with the number of objects I'm creating when saving data. Unsetting those objects doesn't do anything though. Are there any best practices to limit memory usage in Symfony?

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• Best PHP framework for an experienced PHP developer?

  - by andybaird

  Okay, before I start this, I am well aware of how subjective this question is. For my case, I'd like to define the 'best' for me as: Rapid development "Pretty" URLs Data validation Good knowledge base available Not impossible to integrate other PHP software with This is a pretty generic definition, but all I'm looking for here is opinions. Edited: Here's a better way to ask this question: You have two weeks to create a full scale booking and scheduling system that accepts Google Checkout payments (via the API) and integrates with an open source message board software. Which framework do you choose and why?

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• How to fix Print Range in Rave Reports?

  - by Kachwahed

  Hi, Print Range (From Page: x To Page: y) doesn't work, the printer always print all pages! Any workaround or solution will be appreciated. Thanks in advance.

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• simple div containing span won't size correctly

  - by brad

  I thought I was pretty knowledgeable about CSS but this simple problem baffles me. <div><span>sample text</span></div> results in the div's height being smaller than the height of the span if the span has padding. I realize that there are ways to use "float" to make the div size correctly, but floats always seem to introduce undesired side effects. Isn't there a clean simple way to tell the div to size to fit its contents? Seems pretty basic to me. Maybe I'm missing something.

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• Managing Team Development on Shared Website

  - by stjowa

  I need to know the best way to manage team web-development on a shared server (hostgator). I have done some individual web development on a shared server in the past, and I have always setup SVN through SSH to have a pretty-nice development workflow (version control, quick-commits, work though eclipse/subclipse, etc). However, I also know that with that setup, I had to make some pretty-sophisticated post-commit hooks to export the repository to /public_html; and, therefore, making the repository code testable. This seems like a tedious and error-prone setup for an entire team. I would like to be able to: Easily test the latest code in the repository. Somewhat easily move the code in the repository to production. Use an IDE like eclipse/subclipse to easily work with the repository. With this in mind, does anyone know of a good version-control/repository setup for developing a website with a team of about 4-5 people? Thanks a lot.

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• HOw to use local instance of TPrinter

  - by gorann

  Hi, I need to do some printing using TPrinter. The problem is I can not, for varoius reasons, use Global object Printer. I want to be able to create my instance of TPrinter and print using that one. I tried with: MyPrinter := TPrinter.Create; MyPrinter.BeginDoc; but this generates AV. Any idea what does it take to print something using my instance of TPrinter? Regards Goran Nagy

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• Instant Messenger: How does gtalk/yahoo messenger populate the contact list?

  - by Owen

  Hi All, We are currently working on a small IM project which pretty much works like gtalk and yahoo messenger. We came across a problem that puzzled us how gtalk/ym populate their contact lists. Given that the user has let's say more or less 500 contacts, both IMs seem to readily load the contacts pretty fast and already sorted. Here are my questions(referring to either): Does it cache its contacts, like saving it in a file somewhere upon exit so that upon log-in it readily extracts the contacts and displays it in its contact list? Does it always request for the VCARDS upon log in? OR they have a VCARD push or whatever that simply updates the contacts' profiles (like that of their status [presence push - available, busy, etc...] )?

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• Add remove class?

  - by Steven

  Okay I have two classes for two links and two divs with different information. What I am trying to do is have it so when you click on one link it adds a 2 to both of the classes and makes the second div visable. When you click on the other link it takes off a 2 and makes the first div visable. Here is what I currently got $("#posts").click(function () { $("#sideboxtopleft").toggleClass("2"); $("#arrow").toggleClass("2"); }); Pretty much posts is the link, when when you click on it. It would make sideboxtopleft and arrow, sideboxtopleft2 and arrow2 and when you clicked on comments it would take off the 2 of both of those. Then there are two divs, one is set to hidden and I want to make it visable and set the other to hidden. Pretty much creating a tab system with changing tab classes.

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• Memory leak with WPF & ItemsControl (VB.NET)

  - by Matt H.

  I have an ItemsControl that uses a DataTemplate to display properties in my customClass that implements INotifyPropertyChanged... Pretty straightforward... Some items in the DataTemplate use CommandBindings (such as buttons), and a few have some code-behind (yuck). When I empty the ItemsControl and set all instances of customClass = Nothing , no memory is released from my program. This becomes a problem pretty quickly! Any idea where I should start looking? I've even gone so far as to completely traverse the visual tree of each DataTemplate instance and set each Visual = Nothing. I'm not really if that's supposed to have any effect though.

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• asp.net - pdf printing status

  - by BhejaFry

  Hi folks, I need to print PDF's generated in an asp.net application using crystal reports. Upon printing, a database table gets updated with the status 'printed'. How do we handle situation where let's say, the printer runs out of paper? I know this is on client-side, so what's the right way to handle issues like this? TIA

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• ASP.NET MVC based CMS - dynamic generation of form helpers

  - by user252160

  I am working on an ASP.NET MVC based CMS that presents a rather extreme case. The system must allow the user to add custom content types based on different fields, and for every field, one can add options and validations. The thing is that everything is stored in a complex DB and extracted at runtime using LINQ. I am pretty fresh with ASPNET MVC so the following dilemma came to mind How should I make the content creation view so that form helpers are not predefined int he view code but are loaded based on the type of the field ? Do I have to create a factory class that checks the value of the type property of the field, and then returns a helper based on that or there's a better way to do it. This one seems pretty rigid to me , because anytime I make a change in the Fieldtypes table, I will have to make sure to create a check for that new type too.

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• Keeping track of business rules within IT department?

  - by evaldas-alexander

  I am looking for the best way to keep track of the business rules for both developers and everybody else (support staff / management) in a startup enviroment. The challenge is that our business model requires quite a lot of different business rules, which are created pretty much on the fly and evolving organically after that. After running this project for 3+ years, we have so many of such rules that often the only way to be sure about what the application is supposed to do in a certain situation is to go find the module responsible for that process and analyze its code and comments. That is all fine as long as you have one single developer who created the entire application from the scratch, but every new developer needs to go over pretty much entire codebase in order to understand how the application works. Even bigger problem is that non technical employees don't even have that option and therefore are forced to ask me pretty much every day how some certain case would be handled by the application. Quick example - we only start charging for our customer campaigns once they have been active for at least 72 hours, but at the same time we stop creating invoices for campaigns that belong to insolvent accounts and close such accounts within a month of the first failed charge. That does not apply to accounts that are set to "non-chargeable" which most commonly belongs to us since we are using the service ourselves. The invoices are created on the 1st of each month and include charges from the previous month + any current balance that the account might have. However, some customers are charged only 4 days after their invoice has been generated due to issues with their billing department. In addition to that, invoices are also created when customer deactivates his campaign, but that can only be done once the campaign is not longer under mandatory 6 month contract, unless account manager approves early deactivation. I know, that's quite a lot of rules that need to be taken into account when answering a question "when do we bill our customers", but actually I could still append an asterisk at the end of each sentence in order to disclose some rare exceptions. Of course, it would be easiest just to keep the business rules to the minimum, but we need to adapt to changing marketplace - i.e. less than a year ago we had no contracts whatsoever. One idea that I had so far was a simplistic wiki with categories corresponding to areas such as "Account activation", "Invoicing", "Collection procedures" and so on. Another idea would be to have giant interactive flowchart showing the entire customer "life cycle" from prospecting to account deactivation. What are your experiences / suggestions?

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• Send data to LPT on windows XP

  - by gigi

  I want to send data to a printer on LPT1 and i trying exactly this but my CreateFile returns -1 (The system cannot find the file specified.Exception from HRESULT:0x80070002). How to open LPT1 port and send data to? I am trying this on XP and after that in win7 64 bit because from what i've read working with LPT in win7 64 bit is a bit of a problem, or should i say 64 bit of a problem:) PS:Since it's my first post this year: Happy New year to everybody.

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• Can you use Github App with Beanstalk?

  - by mikemick

  Being new to Git, I wanted to use a GUI (Windows based) and preferred the Github App. However, I would like to integrate this site with a Beanstalkapp account. I'm pretty sure this is possible, but I can't figure it out. Inside of the Github app, I navigate to my repository. When I choose "Tools Settings...", I place the Git Clone URL for the repository provided by Beanstalk into the "Primary Remote (origin)" field in my Github app. Now when I click "Publish" (which says "Click to publish this branch to server" when I hover over it) it changes to "Publishing...". After a few seconds, I get this error: server failure The remote server disconnected. Try again later, or if this persists, contact [email protected] I am pretty sure I set the SSH keys up properly (never done this before). I added the key to both the Beanstalkapp and my Github web account.

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• Bracketing algorithm when root finding. Single root in "quadratic" function

  - by Ander Biguri

  I am trying to implement a root finding algorithm. I am using the hybrid Newton-Raphson algorithm found in numerical recipes that works pretty nicely. But I have a problem in bracketing the root. While implementing the root finding algorithm I realised that in several cases my functions have 1 real root and all the other imaginary (several of them, usually 6 or 9). The only root I am interested is in the real one so the problem is not there. The thing is that the function approaches the root like a cubic function, touching with the point the y=0 axis... Newton-Rapson method needs some brackets of different sign and all the bracketing methods I found don't work for this specific case. What can I do? It is pretty important to find that root in my program... EDIT: more problems: sometimes due to reaaaaaally small numerical errors, say a variation of 1e-6 in some value the "cubic" function does NOT have that real root, it is just imaginary with a neglectable imaginary part... (checked with matlab) EDIT 2: Much more information about the problem. Ok, I need root finding algorithm. Info I have: The root I need to find is between [0-1] , if there are more roots outside that part I am not interested in them. The root is real, there may be imaginary roots, but I don't want them. Probably all the rest of the roots will be imaginary The root may be double in that point, but I think that actually doesn't mater in numerical analysis problems I need to use the root finding algorithm several times during the overall calculations, but the function will always be a polynomial In one of the particular cases of the root finding, my polynomial will be similar to a quadratic function that touches Y=0 with the point. Example of a real case: The coefficient may not be 100% precise and that really slight imprecision may make the function not to touch the Y=0 axis. I cannot solve for this specific case because in other cases it may be that the polynomial is pretty normal and doesn't make any "strange" thing. The method I am actually using is NewtonRaphson hybrid, where if the derivative is really small it makes a bisection instead of NewRaph (found in numerical recipes). Matlab's answer to the function on the image: roots: 0.853553390593276 + 0.353553390593278i 0.853553390593276 - 0.353553390593278i 0.146446609406726 + 0.353553390593273i 0.146446609406726 - 0.353553390593273i 0.499999999999996 + 0.000000040142134i 0.499999999999996 - 0.000000040142134i The function is a real example I prepared where I know that the answer I want is 0.5 Note: I still haven't check completely some of the answers I you people have give me (Thank you!), I am just trying to give al the information I already have to complete the question.

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• Customising the .NET PrintPreviewDialog?

  - by Gary Willoughby

  Currently i'm using the PrintPreviewDialog to open a window to preview the printed pages before they are sent to a printer. The problem is though that it first appears very small, at the top left of the screen and the buttons are too small. Is there anyway i can set a starting size for this dialog or start position or even make the little buttons a little bigger? Or do i need to implement my own?

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• Salting example in Zend Framework

  - by Geoffrey

  Hello all, I am pretty new to the Zend framework and looking to build an application with pretty tight password security. I have been trying to follow the user guides in relation to password salting but haven't had any luck so far. I have setup my database and table adapter (As described in the documentation on the Zend Framework site but it didn't seem to finish the example (or I am not following well enough!) I have started with: $authAdapter = new Zend_Auth_Adapter_DbTable($dbAdapter, 'users', 'username', 'password', "MD5(CONCAT('".Zend_Registry::get('staticSalt')."', ?, password_salt))" ); But from here, what is done with the password salt? I just need an example and I'll be away! Does anyone have an example or point me in the right direction?? Many thanks!

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• Line appears on paper each time HTML file is printed

  - by theshadeck

  My application builds and prints HTML reports using AxWebBrowser.ExecWb method. Lately each time a report is printed a thin horizontal line is printed across it. It's not supposed to be there, it doesn't appear in any preview (Word, browser), but it's always there on the paper, always at the same absolute location and regardless of the printer type. Any ideas?

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• C#: Whats is the best way to print multiple images?

  - by Murat

  Have a good day, I need to print a large image collection of pictures. If I use something like: printDocument.PrintPage += OnPrintPage; printDocument.Print(); my printing task size in printer queue takes more than 1 GB!. Does abybody suggest how can I print images one by one. Maybe some event like PrintJobIsFinished is available? Thanks for any help. -- Best Regards, Murat

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• How to open document that contains AutoOpen macro with powershell?

  - by grom

  My current powershell script: $document = "C:\\test.doc" $word = new-object -comobject word.application $word.Visible = $false $word.DisplayAlerts = "wdAlertsNone" $word.AutomationSecurity = "msoAutomationSecurityForceDisable" $doc = $word.Documents.Open($document) $word.ActivePrinter = "\\http://ptr-server:631\pdf-printer" $background = $false $doc.PrintOut([ref]$background) $doc.close([ref]$false) $word.quit() But it results in an alert box "The macros in this project are disabled. Please refer to the online help or documentation of the host application to determine how to enable macros." How can I open the document without it running the AutoOpen macro or displaying any sort of dialog prompt?

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• Great computer-science speeches

  - by sub

  I've looked into some questions here where the "best" programming books are listed and then thought why there isn't a question concerning speeches yet. I think that speeches or presentations from developers or even creators of programming languages which were or are heavily used at some point are particulary interesting. One of my favorite speeches was recommended to me by someone here on SO: The future of C# I also like Guido van Rossum's speeches but he sometimes seems pretty nervous. Another in my opinion good presentation would be the Google tech talk about Go. Which (recorded) programming presentations/speeches are worth watching? edit: Made this a community wiki as the answer would probably be a pretty long list.

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• How to Route URL from one domain to another..

  - by Magic

  Hello, I am an C# ASP.NET developer. I am trying to route URL from one domain to another using Godaddy IIS Virtual dedicated server or Dedicated server. For example I have a website application called A_Application in my server. An example URL: www.myserver.com/A_Application/product/bear/?productid=1 or using pretty URL www.myserver.com/A_Application/product/bear/1 I would like to setup for my client to point to A_Application using his/her domain. My Client example URL will be: www.hisserver.com/product/bear/?productid=1 or using pretty URL www.hisserver.com/product/bear/1 Thanks!

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• Erlang: Is there a way to reload changed modules into an already running node with rebar?

  - by mwt

  The rebar build tool seems pretty cool, but is there a way to recompile AND reload files into a currently running node with it?

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• ASP.NET (AJAX) UI Design Tools for Artistically Challenged?

  - by davemackey

  I'm building an application but I'm artistically challenged and I'd rather not spend my time writing widgets (e.g. ability to collapse/expand/close/drag-drop) if there is already controls available. I've worked with the Microsoft AJAX Control Toolkit - but these tools still require a lot of work to get a working widget (which in my case, won't look too pretty). The CollapsiblePanel is pretty nice - but then you have to program in the minimize button, close button, maximize button, etc. Looking for suggestions that will help me design better UI faster...

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• Which SOA architecture is most appropriate for a Java application?

  - by Robert Greiner

  I am currently working on a pretty large Java 6 application where we are looking to split some of our functionality out into a service oriented architecture. It seems that the primary SOA framework for the application space is OSGi and I have been looking into Felix and Knopplerfish but I wanted to make sure that this isn't my only option. Does it make sense to use an actual web service protocol for our application like SOAP, even though we are not building a web app? Is this even acceptable? Have any of you used an implementation of OSGi (Felix, etc.) with your desktop application? if so, how did it go? Do you know of anything better? We're all pretty new to SOA here so any help would be greatly appreciated.

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