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• Using JQuery Ajax to call a php function

  - by Stevie Jenowski

  Hello! First and foremost thank you for checking out my problem, and for any help you may give! Okay, so like the title says I'm in need of calling a php function from my index page, which adds a new record in my database as a vote, using JQuery Ajax. This function will return one integer, which will then be printed inside the form button in which it was called from. Anyone have an idea on how I would accomplish this? Any guidance is appreciated!

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• Hopefully simple topic to spark some good opinions, Question is MySQL or SQL Server???

  - by magellings

  I'm beginning development of a website and a high priority is for it to be extremely optimized, quick responses, etc. There will ultimately end up being large amounts of rows in the main tables (millions), so scalability is also important. It will need to use a database on the back-end for data storage and my web hosting service supports either MySQL or Sql Server. This website will be developed with .NET ASP.NET MVC with NHibernate (hopefully it can run in medium trust mode, as that is a requirement of my web hosting and reflection requirements of NHibernate may be problematic, maybe someone has a comment on this too). I'd also prefer to use the database that will require the least attention in regards to management. I don't want to have to be a DBA here. :) I wanted to through this topic out to the public to see what the community thinks? So MySQL or Sql Server, generally, which one would be better to use?

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• onunload message needed but not when they click internal links

  - by tumtummetjes

  okay i have a question... i need an message script that only will come up when people are really leaving the current webpage so not the current website... so actualli when people are leaving the website entirelly the message will come up, they need to press the ok button to stay at the current page and cancel to leave the entire website.. the script may not run when people are actually stay on the website or when the click on internal links/pages.. does that make sence/? and can it be done? who know such code?

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• Is there a language designed for code golf?

  - by J S

  I am not really a fan of code golf, but I have to wonder, is there an esoteric language designed for it? I mean a language with following properties: Common programs may be expressed in very short amount of characters It uses ASCII character set effectively (for example, common operators are not identifiers, so they don't have to be separated by whitespace, character usage is distributed more or less evenly because we cannot use Huffman coding and so on) Except the terse syntax, it should have very expressible and clean semantics (like, let's say, Python or Scheme); it shouldn't be difficult to program in It doesn't need features for large scale programs, such as OOP, but it definitely should allow custom functions and data structures It should have a large standard library, identifiers in this library should be as short as possible Maybe it should be called CG? Languages that can be a source of inspiration are Forth, APL and Joy.

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• mod_rewrite: Different rules on different domains, same www-root

  - by Johan

  I have 8 domainnames that point to the same www-root. If the main domain is accessed, you are pointed to index.php, and from there on, the URL's are like: index.php?p=contact etc. If, however, you access one of the other 7 domains, that point to different units, you are initially pointed to: index_local.php, and from there on it goes like: index_local.php?p=contact etc. As you may see these URL's are very ugly, can I use mod_rewrite in this scenario to make it so that index.php AND index_local.php never show up in URL? Is there any better way to do this than the way I'm pointing the user now with multiple domains in the same www-root?

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• Need help with REGEXP_REPLACE

  - by Randy

  hey regex guru's I have a data column that contains a substring similar to this: 'This is a string with ID=123 contained inside' i need to replace the ID=123 with another fixed string say ID=1 i have a working REPLACE call that swaps out the values correctly, but this only works on a known original id number. I can extend to make it work when the number of digits are known by using some substr magic, however, the id number may have an arbitrary number of digits, so i'm thinking regex. any help with the regex magix to grab the entire ID=999 substring no matter how many digits would be very helpful. thanks

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• java methods and race condition in a jsp/servlets application.

  - by A.S al-shammari

  Hi. Suppose that I have a method called doSomething() and I want to use this method in a multithreaded application (each servlet inherits from HttpServlet).I'm wondering if it is possible that a race condition will occur in the following cases: doSomething() is not staic method and it writes values to a database. doSomething() is static method but it does not write values to a database. what I have noticed that many methods in my application may lead to a race condition or dirty read/write. for example , I have a Poll System , and for each voting operation, a certain method will change a single cell value for that poll as the following: [poll_id | poll_data ] [1 | {choice_1 : 10, choice_2 : 20}] will the JSP/Servlets app solve these issues by itself, or I have to solve all that by myself? Thanks..

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• What is the suggested way to show exception messages on UI which were produced in Business Layer?

  - by burak ozdogan

  Hi, Is there a pattern OR 'a best practice' on creating user's friendly messages in the presentation layer by using exceptions which were thrown from the Business Layer? Actually in many cases I prefer to throw Application Exceptions and this is forcing me to catch them on UI (aspx.cs pages). And if the process is complex which may produce many different types of exceptions I have to have many catch blocks to produce specific error messages. Is there a better way coming to your mind? A pattern maybe for similar cases? thanks

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• Regular expression to match any table tag

  - by keeg

  I'm trying to write a regular expression to see if a string contains any of the typical table tags: <table></table> <td></td> <th></th> <tr></tr> <thead></thead> <tfoot></tfoot> <tbody></tbody> Along with tags that may contain other attributes e.g: <table border="1"> I've come up with this so far, however, it matches <br /> tag and I'm not sure why: /<\/?[table|td|th|tr|tfoot|thead|tbody]{1,}>?/ http://www.rexfiddle.net/20Xtqka

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• Using a password to generate two distinct hashes without reducing password security

  - by Nevins

  Hi there, I'm in the process of designing a web application that will require the storage of GPG keys in an encrypted format in a database. I'm planning on storing the user's password in a bCrypt hash in the database. What I would like to be able to do is to use that bCrypt to authenticate the user then use the combination of the stored bCrypt hash and another hash of the password to encrypt and decrypt the GPG keys. My question is whether I can do this without reducing the security of the password? I was thinking I may be able to use something like an HMAC-SHA256 of a static string using the password and a salt as the secret key. Is there a better way to do this that I haven't thought of? Thanks

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• Zend Framework: how to remove rendered views in the controller?

  - by takpar

  i want to render one of these sets of views: head body-$id1 foot OR head body-$id2 foot which set exsists. i do it like this: try { $this->render("head"); $this->render("body-$id1"); $this->render("foot"); } catch (Exception $e) { $this->render("head"); $this->render("body-$id2"); $this->render("foot"); } but it causes the head view be rendered twice if body-$id1 does not exists. do you have a better solution? in another saying, may i check the existance of body-$id1 before rendering it?

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• Error in IE8 Browser -> Message: Object doesn't support this property or method

  - by tibin mathew

  Hi All, In my joomla project(http://crystalwrightlive.com) home page there is one sliding banner section, but this banner not working in IE browser (working fine in FF browser) and showing following error: Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB6; InfoPath.2) Timestamp: Sat, 8 May 2010 06:42:15 UTC Message: Object doesn't support this property or method Line: 1 Char: 1 Code: 0 URI: http://crystalwrightlive.com/index.php In index page included a jquery file: http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js when i removed this JS file, no error but this JQuery file needed for this sliding banner. How can i fix this issue, Please anyone help me!!!!

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• Linenumber for Exception thrown in runtime-compiled DotNET code

  - by David Rutten

  Not quite the same as this thread, but pretty close. My program allows people to enter some VB or C# code which gets compiled, loaded and executed at runtime. My CompilerParams are: CompilerParameters params = new CompilerParameters(); params.GenerateExecutable = false; params.GenerateInMemory = true; params.IncludeDebugInformation = false; params.TreatWarningsAsErrors = false; params.WarningLevel = 4; When this code throws an exception I'd like to be able to display a message box that helps users debug their code. The exception message is easy, but the line-number is where I got stuck. I suspect that in order to get at the line number, I may need to drastically change the CompilerParameters and perhaps even the way these dlls get stored/loaded. Does anyone know the least steps needed to get this to work?

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• PHP eval() code in between <?php ?> from database

  - by kr1zmo

  Some of you may be annoyed with this question, and claim it's unsafe blah blah. I want to be able to put php into the database and run it. I have to do this because I store page layouts in the database and each our different for each other, however in some cases I want to use dynamic content for some of the pages. assume $query_from_db is the string returned from the database. php should only eval() the code in between <?php and ?> $query_from_db = '<div> <?php //php to run function dosomething() { //bleh } ?> </div> '; php echo eval($query_from_db);

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• pyramid view redirection

  - by ascobol

  This question title may be slightly incorrect but I could not find a better one (yet). I'm trying to integrate Mozilla Persona (browserid) into a Pyramid application. The login process is: user can login on any page by clicking on the login button a popup then shows a login form when the users enters correct login/password, an ajax call is made by the popup to a pyramid view that checks users credentials, and calls pyramid remember function if the check succeeded the browserid javascript code then reloads the current page Now I want to handle the case of a new user subscribing to the web app and present a new view asking for a few more details (desired username, etc) Since the "remember" function is called by an ajax call from the popup, I cannot redirect the user the the "/newuser" page. So every view needs to redirect new users to the "/newuser" url whenever the remembered browserid has no corresponding user in the database. Is there a way to intercept user requests before calling a view to call the "new_user" view instead ? Or maybe my authentication approach is fundamentally incorrect and I should rely on another approach ?

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• Forcing Flex to update the screen?

  - by ABBarton

  This may be a bit of a beginners question, but I can't for the life of me figure it out. I'm using flex to develop a GUI for a large project, specifically a status bar along the bottom. Within my StatusBar class is a ProgressBar, which other classes doing work can tell to update(change bar completion and label) as they progress. The problem I'm encountering is that flex won't update whats shown on the screen until it's too late, for example ProgressBar initialized, 0% done some class sets the ProgressBar to be 12% done some class does some work some class sets the ProgressBar to be 56% done Whats happening is the 12% done is never displaying, it just hangs at 0% during the work, then skips right to 56% done. I've tried to understand the lifecycle of a flex component (invalidation and validation), and I think I understand it and am applying it correctly, but it's not working at all. I need to tell flex to redraw my StatusBar (or at least the ProgressBar within) after some class sets it to be 12% done, but before some class starts doing its work. How do I do this?

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• JSP doGet not called from form

  - by RadnaOdela

  I have this code on my JSP page <form action="LoginServlet" method="get"> <input type="text" name="username" /> <input type="text" name="password" /> <input type="submit" value="Submit" /> </form> and when I press Submit I get: The page cannot be displayed The page you are looking for is currently unavailable. The Web site might be experiencing technical difficulties, or you may need to adjust your browser settings. and LoginServlet.doGet method doesn't get called. But then when I press Enter again (in address bar) my doGet method gets called. What is wrong? I am using JEE eclipse and Tomcat

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• Clean install of IIS 6 on Windows Server 2003 ignoring 'web.config'?

  - by Vario

  Hi, Any help with this would be really appreciated! As the title suggests, I'm running a brand new install of Windows Server 2003 and IIS 6 and I'm basically attempting to mirror a live web server onto a new internal development server, which runs the same setup. It's an ASP.NET site that relies heavily on URL rewriting (using Intelligencia). ASP.NET is set to run on v2.0.50727 on both servers. I've tried intentionally introduce syntax errors into the web.config and it just appears to be ignoring them completely, so given IIS 6 doesn't read the web.config, the rest of the site doesn't work at all (I get a 404 error, as a 'Default.aspx' doesn't exist since the web.config handles the default page rewriting). Having looked at the Application Mapping, '.config' files are set to use the default 'c:\windows\microsoft.net\framework\v2.0.50727\aspnet_isapi.dll' which exists. Is there anything else I may be missing? Thanks in advance.

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• Access Profile Provider property values in ASPX files

  - by AsM

  We have several companies using one web application. Companies may decide to display different values in Labels. e.g. CompanyA - ZipCodeCaption = "Zip Code" CompanyB - ZipCodeCaption = "Pin Code" CompanyA - USDSymbolCaption = "USD" CompanyB - USDSymbolCaption = "$" We are using profile provider to store each company's settings. We would like to access these profile values in ASPX to assign values to Label's text properties just like Web Config app settings are accessed in aspx. e.g. " Is this possible? Is there a better way to go about doing this?

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• File Explorer using Java - how to go about it?

  - by user299988

  Hi, I am set to create a file explorer using Java. The aim is to emulate the behavior of the default explorer as closely as possible, whatever may be the underlying OS. I have done NO GUI programming in Java. I have looked-up Swing, SWT and JFace, and I am beginning my project with this tutorial: http://www.ibm.com/developerworks/opensource/library/os-ecgui1/ I would like to know your opinions about the best approach to tackle this problem. If you could comment on complexity of coding, portability and OS-independence, and efficiency, it would be great. Is there anything else I should know? Do some other ways exist? Thanks a lot!

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• Best approach to create a security environment in Java

  - by Tom Brito

  I need to create a desktop application that will run third party code, and I need to avoid the third party code from export by any way (web, clipboard, file io) informations from the application. Somethig like: public class MyClass { private String protectedData; public void doThirdPartyTask() { String unprotedtedData = unprotect(protectedData); ThirdPartyClass.doTask(unprotectedData); } private String unprotect(String data) { // ... } } class ThirdPartyClass { public static void doTask(String unprotectedData) { // Do task using unprotected data. // Malicious code may try to externalize the data. } } I'm reading about SecurityManager and AccessControler, but I'm still not sure what's the best approach to handle this. What should I read about to do this implementation?

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• SQL Server Concatenate string column value to 5 char long

  - by mrp

  Scenario: I have a table1(col1 char(5)); A value in table1 may '001' or '01' or '1'. Requirement: Whatever value in col1, I need to retrive it in 5 char length concatenate with leading '0' to make it 5 char long. Technique I applied: select right(('00000' + col1),5) from table1; I didn't see any reason, why it doesn't work? but it didn't. Can anyone help me, how I can achieve the desired result?

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• Strategy for developing a multi function asp.net web application

  - by user247023

  I'm about to start a new project and want some advice on how to implement. I need a web application which contains a booking module for reserving timeslots, and a time management module which will enable employees to clock in / clock out. If I am writing an update to the time managment module, I don't want to disrupt the booking engine availability by releasing a new solution containing both modules. to make things more difficult, there is some shared functionality like common users, roles and security. Here's a suggestion I've gotten, which sounds a bit cruddy, but may be functional. Write a 'container' web application which consists of basically a frame, and authentication / security features. This then has links which, will load the 2 independantly built and released web applications into the frame. I can see that say, if I wanted to update the time management module, I would only need to build and release this separately, and the rest of the solution would be 'untouched' Any better alternatives?

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• What is the best way to clear the CSS style "float"?

  - by Sam Saffron

  I'm pretty accustomed to clearing my floats by using <br style="clear:both"/> but stuff keeps on changing and I am not sure if this is the best practice. There is a CSS hack (from positioneverything) available that lets you achieve the same result without the clearing div. But... they claim the hack is a little out of date and instead you perhaps should look at this hack. But.. after reading through 700 pages of comments :) it seems there may be some places the latter hack does not work. I would like to avoid any javascript hacks cause I would like my clearing to work regardless of javascript being enabled. What is the current best practice for clearing divs in a browser independent way?

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• Sound plays multiple times at once

  - by Jr. Mathews

  I'm having trouble with sound in Flash. I may have went about coding the wrong way, because most of my codes are on frames. So, I have these two variables var outsideDay:Sound = new daysong(); var outsideNight:Sound = new nightsong(); And I want to play these songs on a specific frame. However, the sounds play sporadically, like 50 times at once. I think it's because I have other codes that link to the frames with a Enter_Frame function. How can I get the sounds to loop and not play multiple times at once?

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