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• How to make JQGrid scroll properly in IE6?

  - by mcv

  I've got a JQGrid that needs to scroll. It works fine in Firefox, but in IE6, the grid stays stationary while the rest of the content scrolls underneath it. What might be a complicating factor is that the grid is inside tabs, inside a dialog. I've googled all over the place, but I can't find a solution for this problem, so I turn to Stackoverflow. Does anyone here know what could cause this behavior? I'm using jqgrid 3.5.3, should that matter.

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• In PHP, how do I add 3 months to the purchase date retrieved from the iPhone InApp receipt?

  - by Cocoanut

  After I have validated the receipt against the App Store from my PHP server, the App Store sends me back a JSON response with "status" : 0 "receipt" : ( .... ) One of the receipt items is "purchase_date" which contains the following string (example) "2010-02-09 19:17:04 Etc/GMT" I'm trying to establish a subscription service and would like to add 3 months to this date and then write that expiry date into a MySQL table. Is there a string-to-date type function in PHP that can allow me to achieve the adding of 3 months? I have found this example which looks like it adds 1 month to a date: $date = date("Y-m-d");// current date $date = strtotime(date("Y-m-d", strtotime($date)) . " +1 month"); But I'm not sure how I can turn the string passed by the App Store into a PHP recognised date.

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• How can I make my Ruby on Rails 2.3.4 application "Rails 3-ready"

  - by marcgg

  I'm developing an application with Ruby on Rails that I want to maintain for at least a few years, so I'm concerned about the next version coming up soon. Going from Rails 1 to Rails 2 was such a big pain that I didn't bother and froze my gems and let the application die, alone, in the dark. On this project I don't want to do that. First because this new version looks awesome, but also because this application may turn into a real product. How can I prepare my application so that it will be upgradable with as little changes as possible. How time consuming do you think switching version will be? And what about my server? Deployment? I'm already looking at deprecation notices... what else can I do?

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• Robots Crawling Across Namespace?

  - by Codex73

  I migrated site from one domain to another. Also placed permanent redirection on old account. My stats logs are capturing this: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) /libro_metaboforte_chap5.php/members/members/file_chap6.php I placed this on robots which wasn't present at time of migration. Robots.txt Contents User-agent: * Allow: / Disallow: /members/ Disallow: /includes/ HTACCESS FILE CONTENTS DirectoryIndex index.php index.html Options +FollowSymlinks RewriteEngine On # Turn on the rewriting engine RewriteBase / RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_URI} !^/store/?$ RewriteCond %{QUERY_STRING} !. RewriteRule ^.+/?$ index.php [QSA,L] RewriteCond %{QUERY_STRING} ^curlang=([a-z]*)$ RewriteRule ^.+/?$ index.php? [QSA,L] Will continue to log incoming bot captures. My htaccess does rewrite. I just added the robot file. The funny part is that is stepping in double directories... I don't know if the problem was not having the 'robots.txt' in place or the actual in place htaccess doing rewrites?

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• Is it possible to detect when the system is recording a sound and then perform some action on Python

  - by Jorge

  I began learning Python a few days ago, and i was wondering about a practical use for a program. Then i came up with the following: if my brother is in his room recording himself playing guitar, a led plugged to the usb and wired so it's outside his door lights up, and then i'll know he's recording and i'll take care not to make any noises. The main questions are: How Python can detect any recording going on in the system? How would i interface with the usb so i can actually turn the led on?

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• ASP.NET Web Service - Passing a base object with list/collection?

  - by schooner

  We need to create a simple web service in ASP.NET that can be called from PHP or other languages. This in turn will be used to update records in a database for an item submission. The core part is fairly simple, we have a base set of fields for the object - first name, last name, birth date, city, etc. In addition however we need to accept a list of items associated with that object that can range from 0-n. Jan 1 2009, ABC May 1 2010, 123 Jun 30 2010, XXXXX What would be the best way to structure this so it can be easily passed to the ASP.NET web service and processed as a single call for the entire object? Would passing the list of items as a single delimted string be a wise approach? Ex: Jan 1 2009, ABC|May 1 2010, 123|Jun 30 2010, XXXXX

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• Guiding a Robot Through a Path

  - by Hamza Yerlikaya

  I have a field filled with obstacles, I know where they are located, and I know the robot's position. Using a path-finding algorithm, I calculate a path for the robot to follow. Now my problem is, I am guiding the robot from grid to grid but this creates a not-so-smooth motion. I start at A, turn the nose to point B, move straight until I reach point B, rinse and repeat until the final point is reached. So my question is: What kind of techniques are used for navigating in such an environment so that I get a smooth motion? The robot has two wheels and two motors. I change the direction of the motor by turning the motors in reverse. EDIT: I can vary the speed of the motors basically the robot is an arduino plus ardumoto, I can supply values between 0-255 to the motors on either direction.

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• Generating a scalogram of a signal

  - by Goz

  Hi there, I'm trying to build a scalogram view for my app to see whether there is relevant information we can retrieve from a wavelet transform as opposed to using a spectograms to see what can be retrieved via an FFT. So far I can take a wave form and I can perform the forward wavelet transform on it. However I am lost at the next step. How do I turn this information into power/energy information? I have a set of wave forms at different frequencies but I have, as I say, no frequency information. Can anyone tell me what the next step is for turning this transformed data into a scalogram? Any help would be much appreciated because my google skills are failing me!

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• Capture Flash Audio in 4.7 Edge?

  - by emcmanus

  Is there a way to capture plugin (Flash) audio before it gets to the sound card? I'd like to record plugin audio, hopefully without actually playing the sound. Capturing audio at the device level is an absolute last resort, as the application would pick up all system audio rather than just the Webkit plugin. I'm aware of the recent switch back from QTMultimedia; is this possible with phonon? I spent the night looking for some way to access the phonon graph via QWebFrame (or any of the QtWebkit widgets) -- and didn't turn up much. I also started digging through QTWebkit, particularly NPAPI, without success. For reference, I'm using the edge version of 4.7 (6aa50af000f85cc4497749fcf0860c8ed244a60e) This seems to be a fairly challenging problem. Any hints would be greatly appreciated.

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• iPhone development time...

  - by Tisch

  I have been asked to develop a relatively simple iPhone application. However, it would be my first application. I am a fairly competent programmer and can turn my skills to a new language fairly quickly... what my question is, is... How long has it taken some of you guys to make your first iPhone application and what was your experience like? Also, if you can say this sort of information, how much did you charge for it?! Thanks in advance. Kindest Regards Tom

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• Ruby module_function, invoking module's private method, invoked in class method style on module shows error

  - by Jignesh

  test_module.rb module MyModule def module_func_a puts "module_func_a invoked" private_b end module_function :module_func_a private def private_b puts "private_b invoked" end end class MyClass include MyModule def test_module module_func_a end end Invoking module function from class c = MyClass.new c.test_module Output 1: $ ruby test_module.rb module_func_a invoked private_b invoked Invoking module function on module in class method style ma = MyModule.module_func_a Output 2: module_func_a invoked test_module.rb:5:in `module_func_a': undefined local variable or method `private_b' for MyModule:Module (NameError) from test_module.rb:31 As can be seen from the Output 1 and Output 2 when including the module in a class, no issue occurs when a module's private method gets invoked from a module function while in case when directly invoking the module function on the module in class method style the module's private method, invoked from module function, is not found. Can anybody make me understand the reason behind above behavior and whether invoking module function (which in turn invokes module's private method) on module in class method style is possible or not? If possible, then what rectifications are required in my code to do the same? Thanks, Jignesh

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• Is it possible to replace the system open file dialog?

  - by Edwin

  I want to replace the standard system open file dialog with the one I wrote, that means no matter within which programs you are opening a file, my dialog will be shown instead of the standard one, is this possible? It seems that that there is no such API provided to accomplish this, is it possible to use some hooking technique, but this has to be reliable and not to be treated as spyware by anti-virus tools? any other options? If this is not possible, is it possible to add to the spacebar or toolbar in the standard open file dialog a button which invokes my dialog, which allow users select a file and in turn returns the path of the selected file to the "File name" input box of the standard dialog? Any hits, links and code examples will be appreciated.

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• My code works in Debug mode, but not in Release mode.

  - by Nima

  Hi, I have a code in Visual Studio 2008 in C++ that works with files just by fopen and fclose. Everything works perfect in Debug mode. and I have tested with several datasets. But it doesn't work in release mode. It crashes all the time. I have turned off all the optimizations, also there is no dependency to anything(in the linker), and also I have set these: Optimization: Disabled(/Od) Keep Unreferenced Data. Do Not Remove Redundant Optimize for Windows98: NO I still keep wondering how it should not work under these circumstances. What else should I turn off to let it works as in debug mode? I think if it works in release mode but not in debug mode, it might be a coding fault but the other way looks weird. isn't it? I appreciate any help. --Nima

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• Can jQuery retrieve a file?

  - by danspants

  I have a django application that creates xls and txt files. I'm trying to create a button which sends a jQuery.get request to django, django then returns a freshly created file to jQuery which in turn pops open a save as dialog. My code looks like this: jQuery("#testButton").live("click",function() { jQuery.jGrowl("click"); jQuery.get("/filetest",function(data){}); }); <div id="testButton" class="button">CLICK TO TEST</div> Getting the file to jQuery is easy, but I have no idea how to then raise a Save As dialog. Any assistance would be fantastic!

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• Databases design - one link table or multiple link tables?

  - by David

  Hi there, I'm working on a front end for a database where each table essentially has a many to many relationship with all other tables. I'm not a DB admin, just a few basic DB courses. The typical solution in this case, as I understand it, would be multiple link tables to join each 'real' table. Here's what I'm proposing instead: one link table that has foreign key dependencies to all other PKs of the other tables. Is there any reason this could turn out badly in terms of scalability, flexibility, etc down the road?

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• Is MonoTouch worth the cost or should I just learn Objective-C?

  - by jamesaharvey

  After sitting through a session today on Mono at a local .Net event, the use of MonoTouch was 'touched' upon as an alternative for iPhone development. Being very comfortable in C# and .Net, it seems like an appealing option, despite some of the quirkiness of the Mono stack. However, since MonoTouch costs $400, I'm somewhat torn on if this is the way to go for iPhone development. Anyone have an experience developing with MonoTouch and Objective-C, and if so is developing with MonoTouch that much simpler and quicker than learning Objective-C, and in turn worth the $400?

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• dynamic dashboard interface

  - by user208081

  I want to create an interface similar to the following in Silverlight. http://demos6.dundas.com/Silverlight/ I need to create a dashboard where different elements can be re-arranged using Silverlight. The dashboard elements can be different usercontrols that in turn may contain charts, guages, grids...... The user should be able to dynamically add and remove dashboard elements. The user should also be able to use drag and drop to reposition the dashboard elements. If there are some code samples to get me started, that will be great as we are just starting out on some Silverlight development. Thanks, Pratik

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• mvc components in codeigniter?

  - by ajsie

  in yii i could have mvc components (acts like an own application). could i have this too in codeigniter? eg. in SYSTEM/APPLICATION have a folder called COMPONENTS and in there i put stand-alone applications that would be a part of the application. components like ADDRESS BOOK, MAIL, TWITTER and so on. every component folder has folders like: models, views, controllers, config etc. so a component model extends the application model which in turn extends system's (code igniter) model. the same goes for view and controller. i've already got a lot of these components which i want to use in codeigniter. is it good idea to place them as i said in SYSTEM/APPLICATION/COMPONENTS or is there best practice for this?

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• Which one should I choose AMQP or XMPP for real-time browser-based game?

  - by Devyn

  Hi, I'm choosing between AMQP (RabbitMQ) vs XMPP (eJabberd) for my browser-based flash-free javascript powered real-time turn-based game. I don't know much about AMQP and XMPP protocol. I would like to use PHP for user-authorization and some data store-retrieve with MySQL. As far as I found out, RabbitMQ has PHP clients but eJabberd not. What I understood is javascript client calls PHP script and manipulate necessary processing and then pass to AMQP or XMPP server to pass the data to opponent player. There is a good book 'Pro XMPP Programming with JS and jQuery' from Wrox but there is no example with PHP. So following are my questions. 1) Which protocol is suit for my game? 2) Shall I choose RabbitMQ just for it's PHP client support?

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• Strange Scala error.

  - by Lukasz Lew

  I tried to create abstract turn based Game and abstract AI: abstract class AGame { type Player type Move // Player inside def actPlayer : Player def moves (player : Player) : Iterator[Move] def play (move : Move) def undo () def isFinished : Boolean def result (player : Player) : Double } abstract class Ai[Game <: AGame] { def genMove (player : Game#Player) : Game#Move } class DummyGame extends AGame { type Player = Unit type Move = Unit def moves (player : Player) = new Iterator[Move] { def hasNext = false def next = throw new Exception ("asd") } def actPlayer = () def play (move : Move) { } def undo () { } def isFinished = true def result (player : Player) = 0 } class DummyAi[Game <: AGame] (game : Game) extends Ai[Game] { override def genMove (player : Game#Player) : Game#Move = { game.moves (player).next } } I thought that I have to use this strange type accessors like Game#Player. I get very puzzling error. I would like to understand it: [error] /home/lew/Devel/CGSearch/src/main/scala/Main.scala:41: type mismatch; [error] found : Game#Player [error] required: DummyAi.this.game.Player [error] game.moves (player).next [error] ^

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• How to set Atomikos to not write to console logs?

  - by peter

  Atomikos is quite verbose when used. There seems to be lots of INFO messages (mostly irrelevant for me) that the transaction manager writes out to the console. The setting in the transaction.properties that is suppose to control the level of messaging com.atomikos.icatch.console_log_level does not seem to have any effect, since even when set to WARN (or ERROR) the INFO messages are still logged. Also the log4j settings for com.atomikos and atomikos seem to be ignored. Does anyone manage to turn off the INFO logs on the console with Atomikos?. How? Thanks Peter

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• Packet Crafting on a Mac

  - by JayCrossler

  I think (based on searching the forums), that NetCat is the best option, but wanted to hear if others are preferable. Anyone have good success with a packet-crafting tool (specifically on Mac)? I've tried HPing, but had some issues. I'm looking into NetCat ('nc' on mac) now, but it's not working as I had thought. Basically, I captured some packets that a remote control sends over a wifi network to turn lights on and off (using X10 controllers), and am looking for a way to replay them by crafting a TCP packet from the command line. I used Wireshark to sniff the traffic, so I know the package is: DEVICE -sendplc-"C4 DIM 10" I'm trying: echo 'DEVICE -sendplc-"C4 DIM 10"' nc 192.168.2.196 6003 but there's no response from the receiving system. The exact bytestream is (if anyone wants to check that I got the right dataframe): 08004642f1b400260897ad6308004500004b08e240004006aaf5c0a802c1c0a802c4d8d7177399aab39 e57ff4753801880ae37ea00000101080a323353ce01b406424445564943457e73656e64706c637e2243 34204f4e220a Next step I'm going to check is to make sure the packet arrives exactly by sniffing and compare it to the original. [EDIT: Also at ServerFault now: Packet Crafting on a Mac, so this one becomes a duplicate across the two sites]

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• Can't declare even the most simple class in PHP - Am I going insane?

  - by Phil

  I'm getting this error whenever I attempt to declare a class: Parse error: syntax error, unexpected T_VARIABLE, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /home3/foundloc/public_html/booka/page2.php on line 7 (line 7 is the class declaration by the way). Here's the incredibly simple class I am attempting to declare: Class abc { $a = “Hello!”; } Is there some setting on PHP that i need to turn on? I feel like this is one of those 'did you check if the TV is plugged in' type of issues....

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• How to represent double values as circles in a 2d matrix in java

  - by marco

  Hello, so I want to write a matrix explorer which enables me to reorder rows and columns of a matrix. For this porpouse I used the Jtable class. Now the problem that I have is that it is very difficult to reorder a matrix by looking at double values, so I would like to print the matrix not with the double values but with circles in which the radius of the circle represents the value. So that I can tell the difference between big values and small values quicker. Anybody has any idea how I can turn this double values into filled circles with JTable or any table class for that matter?

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• How do you configure IIS5 advanced settings from command line?

  - by Jason

  I am trying to automate some of the build process for my asp.net apps by creating the virtual directories it needs and setting all their settings in a batch file. So far I have been able to figure out how to create virtual directories, but how to do you configure them beyond that? For example I need to be able to set them as an application, set the default document, change framework version, turn on integrated authentication, etc. Does anyone know of any scripts that can do all this without a third party utility? Does the adsutil.vbs admin script do any of this?

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