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• Best method for Flex to PHP communication?

  - by davr

  What is the best method for communication between Flex and PHP? In the past, we used AMFPHP with AS2, and it worked great for the most part (advantage of AMFPHP is that it also has a JSON mode that can let you seamlessly use the same remote PHP with either Javascript or Actionscript frontends). However, it seems like AMFPHP isn't realy maintained anymore. So what do people recommend to replace it? So far, what I've found is: Zend_AMF (looks too complex for us, we're not using the Zend framework otherwise) AMFPHP (there were some updated made to support Flex, and it seems fairly stable, but not sure on long-term support) XML (AS3 has nice XML handling routines, but it's more of a pain on the PHP side) WebORB (I have no experience with this) Roll-our-own using JSON or some other data-to-text serialization system (php's serialize(), XML, etc etc) Mostly I'm leaning towards AMFPHP, even because of the downsides, since that's what I'm used to. Any reason I should consider switching to something else?

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• How is GroupOn website programmed?

  - by Maxi Garcia

  Hello world! This is my first time on Stackoverflow.com and it's great to be here! I need some expert programmer out there to tell me how the GroupOn's platform operates, from the programming point of view. Which are the most complex features it has and what technology do they use? If I were about to start learning programming languages, what should I learn to create a site like GroupOn.com? Is there any website where I can learn the basic principles for free? I appreciate your advices. Thanks in advance!

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• Serial Mac OS X constantly freezes/locks/dissappears for USB to Arduino

  - by Niraj D

  I have a problem with my C++ code running in Xcode with both the AMSerial library as well as the generic C (ioctl, termios). After a fresh restart, my application works well but after I "kill" the program the Serial (I think) is not released. I have checked my open files under /dev and have killed the connection to serial USB from there, but my C++ still can't open the USB port. I have narrowed this down to being a low level Mac OS X issue, regarding blocking the port indefinitely, regardless of closing it using the aforementioned libraries. Just for context, I'm trying to send numbers through my USB port, serially to an Arduino Duemilanove at 9600 baud. Running Serial Monitor in Arduino is perfectly fine, however, running through a C++ application it freezes up my computer, occasionally, my mouse/keyboard freeze up: requiring a hard reset. How can this problem be fixed? It seems like Mac OS X is not USB friendly!

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• Flowcharting tool/add-in for Visual Studio

  - by Rajah

  A 2 part question: Are flow-charts, as tool to analyze source-code, no longer considered useful? The reason I ask this question is that if you Google for source-code to flowchart tools for Visual Studio, there are no relevant results. Also, Microsoft does not seem to have a tool for this purpose. Are people just not using flowcharts that much any more? (I find them to be a great way to document complex logic in my code). Are there any VS tools that can take .Net (C#, VB.Net) code and convert it to a flowchart? (The only tool that I found is Aviosto's Visustin, which does not provide VS integration). Any other tools that you can recommend for this purpose?

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• onload Event in embedded SVG not calling function in attached script. Scope Issue?

  - by Nick

  Hi So I've got an XHTML page with a script - not inline > <script type="text/javascript" > src="../global/js/scripts.js"></script> and an embedded (I tried embed and object, same behavior) SVG document with a onload="CheckIfLoaded(evt)" attribute. The problem is firefox doesn't call the CheckIfLoaded() function in scripts.js. Firebug gives me "CheckIfLoaded() is not defined" with no reference to any line numbers. I can't find any information regarding the scope of javascript functions with respect to embedded content. Curiously, it works fine in IE. I could of course add a reference to the script into the SVG file as well but I believe that will result in the client downloading the scripts file twice and in addition I have 1000+ svg files and I'd really rather not add one line to all of them, although I suppose I could write a batch file or whatever if I have to. Any one know more about this? Thanks, Nick

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• Web Page Design Get Distorted in Desktop PC Monitor

  - by Tarik

  I am building my web application on my laptop but when I navigate the page on my desktop pc the layout of the div are distorted. I think the solution is giving percentage instead of absolute numbers like 240px to height and width of divs. What do you think ? Do you have another recommendations ? Thanks in advance. What I've done is : <div style="height:240px;width:240px"></div> What I think I have to do is : <div style="height:100%;width:90%"></div>

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• Drupal CCK 3 Multigroup tables with views

  - by henrijs.seso

  Hi, Each node have CCK-3-dev multigroup with 3 fields. Can I use one of fields as table header? Values of this field are taken from Taxonomy. With a simple recipe example, where food Z and Y are 2 nodes with recipes and each node has multigroup with ingredient name (milk, fish), amount (numbers) and unit (g, kg). Is there a way to create a table like this with views, I want to use views calc to calculate total amount of ingredient needed to prepare multiple recipes: Ingredient A Ingredient B Ingredient C Food Z 200 g 700 g 0 g Food Y 500 g 1000 g 50 g I don't even need units by number, but that would be good too. Anyways, how do I get this?

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• BIC generator - Generate BIC from IBAN bank account number

  - by Tim

  Is there any existing library or script I can use to generate the BIC code from an IBAN bank account number (and other necessary information)? I've searched the web, but found only IBAN generators. Thanks in advance! Edit: Solution for Belgian IBAN's There exists a webservice for Belgian iban numbers, it's very easy to get the bic from the iban bank account number. $client = new SoapClient('http://www.ibanbic.be/IBANBIC.asmx?WSDL'); $bban = $client->getBelgianBBAN(array('Value' => $iban))->getBelgianBBANResult; $bic = $client->BBANtoBIC(array('Value' => $bban))->BBANtoBICResult; I've searched for a dutch webservice aswell, but I couldn't find one. But you can always make one yourself with the data from http://www.betaalvereniging.nl/europees-betalen/sepa-documentatie/bic-afleiden-uit-iban/

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• Zend_Table_Db and Zend_Paginator and Zend_Paginator_Adapter_DbSelect

  - by Uffo

  I have the following query: $this->select() ->where("`name` LIKE ?",'%'.mysql_escape_string($name).'%') Now I have the Zend_Paginator code: $paginator = new Zend_Paginator( // $d is an instance of Zend_Db_Select new Zend_Paginator_Adapter_DbSelect($d) ); $paginator->getAdapter()->setRowCount(200); $paginator->setItemCountPerPage(15) ->setPageRange(10) ->setCurrentPageNumber($pag); $this->view->data = $paginator; As you see I'm passing the data to the view using $this->view->data = $paginator Before I didn't had $paginator->getAdapter()->setRowCount(200);I could determinate If I have any data or not, what I mean with data, if the query has some results, so If the query has some results I show the to the user, if not, I need to show them a message(No results!) But in this moment I don't know how can I determinate this, since count($paginator) doesn't work anymore because of $paginator->getAdapter()->setRowCount(200);and I'm using this because it taks about 7 sec for Zend_Paginator to count the page numbers. So how can I find If my query has any results?

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• In Django, can you add a method to querysets?

  - by Paul D. Waite

  In Django, if I have a model class, e.g. from django.db import models class Transaction(models.Model): ... then if I want to add methods to the model, to store reasonably complex filters, I can add a custom model manager, e.g. class TransactionManager(models.Manager): def reasonable_complex_filter(self): return self.get_query_set().filter(...) class Transaction(models.Model): objects = TransactionManager() And then I can do: >>> Transaction.objects.reasonably_complex_filter() Is there any way I can add a custom method that can be chained to the end of a query set from the model? I.e. add the custom method in such a way that I can do this: >>> Transaction.objects.filter(...).reasonably_complex_filter()

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• XML to DOC to PDF

  - by Max

  what is the easiest(and fastest) way to perform this kind of transformation: "Data in XML" to "Some MS Word 2003 Supported format" to PDF using Java? My first guess was to fill the template with XML data (using Placeholders for example) and then save it and convert it to PDF. But I can't just put placeholders to DOC files, and I can't convert from some other Word formats to PDF... My primary task is to convert XML Data to PDF allowing users to change the PDF on-demand. The best way to change the PDF on-demand seems to give user some kind of MS Word readable document, and then convert it back. There are 2 main problems with this task: 1) I can't use OpenOffice for conversion. 2) System should be able to convert ~1 page of table-based document per 1 second on 2Ghz Core. 3) RTF does not provide enough styling, so some more complex format should be used. Thanks in advance.

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• Timer or Thread?

  - by Pradeep Singh

  I have a method(say method1) that writes to database(sqlserver)and another method(say method2) that tries to access the same database after some time and updates the data row that was created by method1. The problem arises when method1 fails to access db due to the LAN being disconnected (this is not an exception this is a scenario that will definitely arise in my software, getting into details will make the question too complex) if method1 fails to access db method2 cannot work. What I want to do is to make method1 store values to local db instead of server if the LAN is disconnected and as soon as it enters value in local db the application should start trying to access the server after ever 10-15 seconds. What should I use timer or create a new thread?

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• How can I prevent tab characters etc. from being pasted into an asp.net textbox?

  - by Neal

  Hello, I'd like to have an asp.net textbox that people can paste content into and it works like notepad, i.e. no formatting or special characters will get entered. I take text and pass it to a web service which manipulates it and converts it into a tab delimited file. The problem I've experienced is sometimes people copy from MS Word and paste that content in and somehow even the tab characters etc. get passed to the web service. I run routines now to strip that information out but it would be so much easier if the textbox on the web page didn't capture anything but the text itself, i.e. visible characters (numbers, letters, punctuation). Anyone have a suggestion to have a textbox that doesn't capture formatting and non-visual characters? Thank you.

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• How to take a partial screen capture using Ruby?

  - by Jason

  Hi, I need to run a ruby client that wakes up every 10 minutes, takes a screen-shot (ss) of a users screen, crops part of the (ss) out and use's OCR to check for a matching word....its basically a program to make sure remote employees are actually working by checking that they have a specific application open & the case numbers shown change. Not sure where to even start when it comes to taking a screen-shot and cropping it, has anyone done any kind of screen capture work using Ruby? The app will run on OSX using Ruby 1.9 Thanks!

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• SQlite: Column format for unix timestamp; Integer types

  - by SF.

  Original problem: What is the right column format for a unix timestamp? The net is full of confusion: some posts claim SQLite has no unsigned types - either whatsoever, or with exception of the 64bit int type (but there are (counter-)examples that invoke UNSIGNED INTEGER). The data types page mentions it only in a bigint example. It also claims there is a 6-byte integer but doesn't give a name for it. Of course standard INTEGER being 4-byte signed signed stores unix timestamps as negative numbers. I've heard that some systems return 64-bit timestamps too. OTOH I'm not too fond of wasting 4 bytes to store 1 extra bit (top bit of timestamp), and even if I have to pick a bigger data format, I'd rather go for the 6-byte one. I've even seen a post that claims SQLite unix timestamp is of type REAL... Complete problem: Could someone please clarify that mess?

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• Combinatorics, probability, dice

  - by TarGz

  A friend of mine asked: if I have two dice and I throw both of them, what is the most frequent sum (of the two dice' numbers)? I wrote a small script: from random import randrange d = dict((i, 0) for i in range(2, 13)) for i in xrange(100000): d[randrange(1, 7) + randrange(1, 7)] += 1 print d Which prints: 2: 2770, 3: 5547, 4: 8379, 5: 10972, 6: 13911, 7: 16610, 8: 14010, 9: 11138, 10: 8372, 11: 5545, 12: 2746 The question I have, why is 11 more frequent than 12? In both cases there is only one way (or two, if you count reverse too) how to get such sum (5 + 6, 6 + 6), so I expected the same probability..?

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• Android animation clipping when going between layouts

  - by Ravedave

  I have a fairly complex layout. I use a relative layout as the root and then inside of it I have a few table views and some further nesting. When I animate an imageview between these layouts my image clips. I have a background on the parent layout and the animation looks like it's going under it. I have set android:clipChildren="false" and android:clipToPadding="false" on all of the layouts. I've also set anim.setZAdjustment(Animation.ZORDER_TOP); on all of my animations. What am I doing wrong?

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• Unique identifier for an email

  - by Skywalker

  I am writing a C# application which allows users to store emails in a MS SQL Server database. Many times, multiple users will be copied on an email from a customer. If they all try to add the same email to the database, I want to make sure that the email is only added once. MD5 springs to mind as a way to do this. I don't need to worry about malicious tampering, only to make sure that the same email will map to the same hash and that no two emails with different content will map to the same hash. My question really boils down to how one would combine multiple fields into one MD5 (or other) hash value. Some of these fields will have a single value per email (e.g. subject, body, sender email address) while others will have multiple values (varying numbers of attachments, recipients). I want to develop a way of uniquely identifying an email that will be platform and language independent (not based on serialization). Any advice?

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• Boolean Expression Evaluation in Java

  - by Trilok

  Hey everyone, Is there a relatively simpler (when compared with writing a parser) way to evaluate boolean expressions in Java? I do not want to use the JEP library. I have a String expression something like: (x 4 || x < 8 && p 6) [ I will replace the variables with values. Is there a way by which I can evaluate this expression? The problem is, this can be any level deep. So, writing a parser would be really complex. Thanks

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• Testing sample code in python modules

  - by Andrew Walker

  I'm in the process of writing a python module that includes some samples. These samples aren't unit-tests, and they are too long and complex to be doctests. I'm interested in best practices for automatically checking that these samples run. My current project layout is pretty standard, except that there is an extra top level makefile that has build, install, unittest, coverage and profile targets, that delegate responsibility to setup.py and nose as required. projectname/ Makefile README setup.py samples/ foo-sample foobar-sample projectname/ __init__.py foo.py bar.py tests/ test-foo.py test-bar.py I've considered adding a sampletest module, or adding nose.tools.istest decorators to the entry-point functions of the samples, but for a small number of samples, these solutions sound a bit ugly. This question is similar to http://stackoverflow.com/questions/301365/automatically-unit-test-example-code, but I assume python best practices will differ from C#

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• How does a debug build make reverse engineering easy?

  - by danny

  Some answer here stated that debug info would make it easier to reverse engineer the software. When I use Visual C++ and distribute an executable with debugging information but without other files (.pdb), will it contain any interesting things? I looked to the executable with a hex editor and found nothing like symbol names, for now I assume the .exe file just links to information in the .pdb files, right? Do you know whether it contains variable names? function/member names? line numbers? anything interesting? Thanks!

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• How to get MAX value of a version-number (varchar) column in T-SQL

  - by Ogre Psalm33

  I have a table defined like this: Column: Version Message Type: varchar(20) varchar(100) ---------------------------------- Row 1: 2.2.6 Message 1 Row 2: 2.2.7 Message 2 Row 3: 2.2.12 Message 3 Row 4: 2.3.9 Message 4 Row 5: 2.3.15 Message 5 I want to write a T-Sql query that will get message for the MAX version number, where the "Version" column represents a software version number. I.e., 2.2.12 is greater than 2.2.7, and 2.3.15 is greater than 2.3.9, etc. Unfortunately, I can't think of an easy way to do that without using CHARINDEX or some complicated other split-like logic. Running this query: SELECT MAX(Version) FROM my_table will yield the erroneous result: 2.3.9 When it should really be 2.3.15. Any bright ideas that don't get too complex?

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• Use a "x-dom-event-stream" stream in javascript ?

  - by rnaud

  Hello, HTML5 draft contains an API called EventSource to stream data (notifications) trough javascript using only one server call. Looking it up, I found an exemple on Opera Labs of the javascript part : document.getElementsByTagName("event-source")[0] .addEventListener("server-time", eventHandler, false); function eventHandler(event) { // Alert time sent by the server alert(event.data); } and the server side part : <?php header("Content-Type: application/x-dom-event-stream"); while(true) { echo "Event: server-time\n"; $time = time(); echo "data: $time\n"; echo "\n"; flush(); sleep(3); } ?> But as of today, it seems only Opera has implemented the API, neither Chrome nor Safari have a working version (Am I wrong here ?) So my question is, is there any other way in javascript, maybe more complex, to use this one stream to get data ?

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• Proper indentation in array initialization, PDT/Zend Studio

  - by Sergei Stolyarov

  I'm using the following style of array initialization in the code: $a = array( 'one' => 123, 'two' => 456 ); But PDT/Zend Studio doesn't work properly in this case; after pressing [Return] key it places cursor under the $a (in my example) and ignores indentation. If array keys are numbers (at least not start with quotation marks) everything is working fine. This is how it works currently (| — is a position where edtitor places caret after pressing [Return]) $a = array( 'one' => 123,[RETURN] | ); This is expected result: $a = array( 'one' => 123,[RETURN] | ); So is it possible to force editor follow my indentation rules?

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• Tips for resolving Hibernate/JPA EntityNotFoundException

  - by Damo

  I'm running into a problem with Hibernate where when trying to delete a group of Entities I encounter the following error: javax.persistence.EntityNotFoundException: deleted entity passed to persist: [com.locuslive.odyssey.entity.FreightInvoiceLine#<null>] These are not normally so difficult to track down as they are usually caused by an entity being deleted but not being removed from a Collection that it is a member of. In this case I have removed the entity from every list that I can think of (it's a complex datamodel). I've put JBoss logging into Trace and I can see the collections that are being cascaded. However I can't seem to find the Collection containing the entity that I'm deleting. Does anyone have any tips for resolving this particular Exception? Thanks.

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