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• jquery draggable into sortable only works after sorting

  - by Dao

  Hi, I'm experiencing problems with a simple combination of a Draggable and Sortable: initially, the dragging does not work and I do not get a receive callback. Only after I have done a sort (i.e. change the position of things in #workarea), can I drag new things into it. Somehow it seems as if the sortable needs to be 'initialized' before it accepts draggables. My code, in a simplified version: $(".element_draggable").draggable({ zIndex: 2, helper: 'clone', connectToSortable: '#workarea'}); $("#workarea").sortable({ receive: function() {alert('received');} }); Does anyone have an idea on what I could be doing wrong here?

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• Overcoming Inertia - How to Just Get Going on Stuff

  - by kronoz

  I wondered whether you guys could help me - I have a big problem with overcoming inertia, i.e. how to just get started on a project/work when you simply feel the inertia of not being in the right 'zone' to do work such that it really becomes pretty damn tough to actually get on with what you want to do. Forgive me quoting my blog post where I try to express the problem as best I can:- The problem is that it feels so damned difficult to exert the force required to shift from one mode to another, so much so that you find it almost inconceivable to do so at the time. You need to force yourself somehow, or at least find some sort of hack to trick yourself into it. Do you guys have any ideas/hacks as to how to overcome this? Thanks in advance, and hopefully the community feel this question is valid for stack overflow (I have set it community wiki due to its fairly subjective nature.)

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• ASP.NET Ajax Error: Sys.WebForms.PageRequestManagerParserErrorException

  - by Phil Bennett

  My website has been giving me intermittent errors when trying to perform any Ajax activities. The message I get is Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near ' So its obviously some sort of server timeout or the server's just returning back mangled garbage. This generally, unfortunately not always, happens when the site has been idle for a while. Anybody else been able to overcome this? Thanks

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• Comparing two ISO8601 dates strings in PHP

  - by oompahloompah

  I need to compare (actually rank/sort) dates in a PHP script. The dates are ISO-8601 Date format i.e. YYYY-MM-DD I wrote a comparison function which splits the dates and compares by year/month/day. However, it seems this may be overkill and I could just as easily done a simple string comparison like: if ($date1 < $date2) // do something elseif( $date1 > $date2) //do something else else //do yet another thing Is my assumption about (ISO-8601) Date string comparison correct - i.e. can I get rid of my function (to save a few clock cycles on the server), or is it safer to explicity do the comparison in a custom function?

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• Example where Up-Front Design (Would have) Saved You Time

  - by Winston Ewert

  In various places I've seen the claim that by designing a system up-front, you can significantly reduce development time. I.e. by spending an hour designing you can save a week coding. My problem is that I have never seen a situation where I found this to be true. So I want to know of any examples out there that people have where this would be true: So: What sort of problem arose during coding? (or was avoided?) How could you have avoided (or did avoid) the problem by spending more time doing design? Why was it (or would it have been) hard to fix the problem in the code?

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• Specific ordering of records based on list of IDs? with MySQL & PHP

  - by Mr

  I have a 'user' table in MySQL When users login to my app, they can see a list of all other users and via some javascript-drag-drop can arrange which order the other users appear in. We want to save that order. And it is saved to their record (i.e. 'order_pref' = 4,3,5,23... list of user_ids in the order they specified). So that's fine but when it comes to displaying.. Is there an easy way I can sort based on this comma delimited list of user_ids using just one query?

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• Easy to use/learn PHP framework?

  - by Meredith

  I need to build a php app, and I was thinking about using a framework (never used one before). I've been browsing around some but most of them seems kinda complicated, I really liked what I saw about Symfony, but it looks like I will have to spend like a month until I really understand how to use it, and in one month I could code the app I have in mind 5 times without a framework. But I want to use one to "standardize" my code and prevent bugs. So I was wondering if someone could share with me which php frameworks you think are easier to learn how to use. My application will use mysql, and it will have some sort of "search engine" to search data that will be populated on the database using a few "scraper scripts" (that I also wants to code using the framework).

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• Catching the redirected address from NSURLConnection

  - by Vic

  I'm working on a software which follows the HTTP redirection which is dynamically calculated by the server depending on a pparameter. I don't want to show the primary server in Mobile Safari but rather the redirected address only. The following code workks: request = [NSMutableURLRequest requestWithURL:originalUrl cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10]; [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; // Extract the redirected URL target = [response URL]; The problem is that the server requires several seconds to answer. The sendSynchronousRequest blocks the app for this time completely which is messy, I can't even display the "Busy" animation. Does anyone know how I can retrieve the redirected address asynchronously without safari appearance in the meanwhile with the redirecting server URL or display some sort of the "Be patient" animation during the sendSynchronousRequest? What disadvantages would have the passing of sendSynchronousRequest in another thread?

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• How do I close a form when the ESC key was hit, but only if no Control handled it?

  - by Gabriel

  I have a Form that closes itself when the ESC key is pressed, thanks to KeyPreview, ProcessKeyEventArgs, ProcessCmdKey or whatever. But I have a Control on that form that does very relevant things when ESC is pressed (it hides itself) and the Form should not be closed when that happens. The control uses the KeyDown event and sets the SuppressKeyPress flag to true, but that happens after the aforementioned form key preview, thus having no effect. Is there some sort KeyPostview ? How do I not close the form when a Control has a relevant use of a key hit ? Edit: The control handling ESC is a textbox embedded in a hand-maid ListView. The textbox appears when the user clicks a cell, enabling edition. To validate the new text, ENTER would be nice (that already works, as giving the focus to anything else). To cancel edition, ESC seems most natural.

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• How can I pass a javaScript function to a Java Method to act as a callback (Rhino)

  - by Dan Howard

  Hi everyone, Basically I'm trying to pass a javaScript function to a Java method to act as a callback to the script. I can do it - sort of - but the object I receive is a sun.org.mozilla.javascript.internal.InterpretedFunction and I don't see a way to invoke it. Any ideas? Here's what I have so far: var someNumber = 0; function start() { // log is just an log4j instance added to the Bindings log.info("started...."); someNumber = 20; // Test is a unit test object with this method on it (taking Object as a param). test.callFromRhino(junk); } function junk() { log.info("called back " + someNumber); }

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• Find top N elements in a Multiset from Google Collections?

  - by dfrankow

  A Google Collections Multiset is a set of elements each of which has a count (i.e. may be present multiple times). I can't tell you how many times I want to do the following Make a histogram (exactly Multiset) Get the top N values from the histogram Examples: top 10 URLs, top 10 tags, ... What is the canonical way to do #2 given a Multiset? Here is a blog post about it, but that code is not quite what I want. First, it returns everything, not just top N. Second, it copies (is it possible to avoid a copy?). Third, I usually want a deterministic sort, i.e. tiebreak if counts are equal.

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• Maven Quick-start Guide

  - by Dave

  I'm tasked with getting a development environment set up for a new program at work. The lead has chosen Eclipse as the IDE for its OSGi support and Maven as the build utility. I've struggled through getting Maven integrated with Eclipse and I'm grudgingly declaring success and moving forward. My question: is there any sort of guide to getting started with Maven? I've found boatloads of documentation, most all of it very, very detailed and simultaneously unhelpful. I downloaded a 300+ page book that goes into excruciating detail about POMs, but doesn't tell you how to initialize a project from existing source. Hopefully, this question will result in a pointer to something I missed or a collection of links for those who follow me.

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• When using the Facebook Connect Actionscript API (no JS, just straight Flash), how can I listen for

  - by techno

  Hey guys, When using the Facebook Connect AS API, the user will be prompted to log in to FB in a pop up window. At this point I want to block interaction in my flash movie and wait for them to complete logging in (or potentially close/cancel and not log in). I have seen examples where people put up a Flex "Alert" box with some hint like "Press ok once you have logged into facebook", but I want to automatically listen for them logging in or canceling/closing the popup window without logging in. Is there an event I can listen for with flash? So far I am using ZERO javascript, but I guess I could add a little if it is needed for this... I definitely want to avoid having some sort of "Press OK" alert box, but instead have the flash application automatically react to the user logging in with the popup window.

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• Subversion version 'difference' a big deal?

  - by CmdrTallen

  Greetings, using VS2008 and VisualSVN and seems the VisualSVN folks are religious about updating the client (and their VisualSVN server) to the latest Subversion release. My question is my subversion server is a hosted server and seems to always lag several versions behind the client I use. Should I be concerned about this version "mis-match"? Is there a general rule of thumb about when it is a point to be concerned (like an entire major release behind)? Any sort of mechanism build into either the client, the server or the protocol that prevents something horrible from happening between badly 'paired' clients and servers?

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• How to retrieve column total when rows are paginated?

  - by Rick

  Hey guys I have a column "price" in a table and I used a pagination script to generate the data displayed. Now the pagination is working perfectly however I am trying to have a final row in my HTML table to show the total of all the price. So I wrote a script to do just that with a foreach loop and it sort of works where it does give me the total of all the price summed up together however it is the sum of all the rows, even the ones that are on following pages. How can I retrieve just the sum of the rows displayed within the pagination? Thank you! Here is the query.. SELECT purchase_log.id, purchase_log.date_purchased, purchase_log.total_cost, purchase_log.payment_status, cart_contents.product_name, members.first_name, members.last_name, members.email FROM purchase_log LEFT JOIN cart_contents ON purchase_log.id = cart_contents.purchase_id LEFT JOIN members ON purchase_log.member_id = members.id GROUP BY id ORDER BY id DESC LIMIT 0,30";

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• Photo printing API system?

  - by webdestroya

  I am looking for options to provide customers on my website a way to order prints for photos. (It is a photo sharing site, so it needs to be automated, I don't want any portfolio sites that require uploads and what not). Basically it just needs where I send them the photos, the address, (and possibly billing info) and they make the prints and mail them out. I have searched all over the place for such a system, but none seem to offer what I want. I tried hacking snapfish (which worked, but it says "Return to Picasa" on the buttons, which makes it sort of lame...) Any ideas?

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• How to Create VBA Add-In with Shared Codes for All Excels?

  - by StanFish

  I'm writing VBA codes for multiple Excel spreadsheets, which will be shared with others from time to time. At some point I find there are lots of duplications in my works. So I want to find a way to share codes in a sort of Excel add-in, like the .xla file. But when I tried to save the Excel file containing shared codes as .xla file, I got some problems: The file cannot be edit anymore after I save it in the default add-in folder If I move the .xls file to a folder other than the add-in folder, and open it directly - I cannot use its classes - which creates problems for sharing the codes Any ideas to create add-ins in a flexible and powerful way please? Thanks a lot for the help

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• iPhone app launch times and Core Data migration

  - by sehugg

  I have a Core Data application which I plan to update with a new schema. The lightweight migration seems to work, but it takes time proportional to the amount of data in the database. This occurs in the didFinishLaunchingWithOptions phase of the app. I want to avoid <app> failed to launch in time problems, so I assume I cannot keep the migration in the didFinishLaunchingWithOptions method. I assume the best method would involve performing the migration in a background thread. I assume also that I'd need to defer loading of the main ViewController until the loading completes to avoid using the managedObjectContext until initialization completes. Does this make sense, and is there example code (maybe in Apple sample projects) of this sort of initialization?

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• Question about pipe in Perl

  - by Uri

  The following code is working sort of fine: open( PIPE, '-|', 'ant' ); for( <PIPE> ) { print; } However, it doesn't do what I want. Since the Ant build can take 5 minutes, I would like to see the output line by line. Instead, I'm getting the entire input at the end of the process. Looking at it with the Perl debugger, Perl waits at the 'for' statement, until Ant terminates. Why is that?

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• Get the newest file from directory structure year/month/date/time

  - by Radek

  I store backups of databases in a directory structure year/month/day/time/backup_name an example would be basics_mini/2012/11/05/012232/RATIONAL.0.db2inst1.NODE0000.20110505004037.001 basics_mini/2012/11/06/012251/RATIONAL.0.db2inst1.NODE0000.20110505003930.001 note that timestamp from the backup file cannot be used. Before the automation testing starts the server time is set to 5.5.2011 So the question is how I can get the latest file if I pass the "base directory" (basics_mini) to some function that I am going to code. My thoughts are that I list the base directory and sort by time to get the year. Then I do the same for month, day and time. I wonder if there is any "easier" solution to that in php.

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• "Invalid Procedure Call or Argument", but only in a compiled or P-Code EXE

  - by Rob Perkins

  I have a VB6 program which I've been maintaining for ten years. There is a subroutine in the program called "Prepare Copy", which looks like this: Public Sub PrepareCopy() Set CopiedShapes = New Collection End Sub Where CopiedShapes is dimmed out as a VB6 Collection. That code is now kicking out a Runtime Error 5 -- Invalid Procedure Call or Argument. It appears from the interstitial debugging code that the error arises between the Public Sub PrepareCopy() and the Set CopiedShapes = New Collection lines. That's right. The VB6 error is happening between two lines of my code. I can think of no other explanation for this. It's behaving this way on my development machine and two client computers. It is only happening in runtime code, and does not appear to make a difference whether I compile it or use P-Code What I'm asking for here is speculation as to what causes this sort of thing to happen.

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• Ubuntu quickly (python/gtk) - how to monitor stdin?

  - by neil

  I'm starting to work with Ubuntu's "quickly" framework, which is python/gtk based. I want to write a gui wrapper for a textmode C state-machine that uses stdin/stdout. I'm new to gtk. I can see that the python print command will write to the terminal window, so I assume I could redirect that to my C program's stdin. But how can I get my quickly program to monitor stdin (i.e. watch for the C program's stdout responses)? I suppose I need some sort of polling loop, but I don't know if/where that is supported within the "quickly" framework. Or is redirection not the way to go - should I be looking at something like gobject.spawn_async?

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• Avoid application becoming unresponsive on download

  - by baron

  Hi I have an application which downloads a file from a network location and then displays that files information. It uses WebClient.DownloadFile to achieve this. The problem is, when the user clicks a button to start the download, the application becomes unresponsive until the file has downloaded. This gives the impression the application may have hung. I would like to seek ideas which would avoid this scenario. Though my solution will need to be 'as quick and cheap as possible' I would be interested in hearing about custom loaders that have been built, or some sort of loading symbol / progress bar / sand time clock thingy : ) Thanks for reading.

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• How to make drupal known submitting custom content

  - by Andrew

  Hi, I know this is not a drupal forum but, as I’m not getting any response there, I decided to give it a shot here. I’m creating a web site that accepts custom content from users. So, for that matter, this site has a form and a custom module. Instead of using admin theme, this form is placed inside custom template which is created to have a uniform look with the rest of the pages. As a result, creating form elements through hook_form is out of question. Here’s where my problems lie. As this form uses custom theme, I’m not sure as to what can I do to make drupal know that user is submitting new content data when the form is submitted? Would I need to use same query string that of content submission page of admin page like - ?q=node/add/page for action attribute of the html form? (OR) the only way is to map the url to my custom function and invoke some sort of hook inside of it? Thanks

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• Making self-logging modules with Log::Log4perl

  - by Oesor

  Is there a way to use Log::Log4perl to make a smart self-logging module that logs its operations to a file even in the absence of the calling script not initializing Log4perl? As far as I can tell from the documentation, the only way to use Log4perl is to initialize it in the running script from a configuration, then modules implementing Log4perl calls log themselves based on the caller's Log4perl config. Instead, I'd like the modules to provide a default initialization config for Log4perl. This would provide the default file appender for the module's category. Then, I could override this behavior by initing Log4perl in the caller with a different config if needed, and everything would hopefully just work. Is this sort of defensive logging behavior possible or am I going to need to rely on initing Log4perl in every .pl script that calls the module I want logged?

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