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• Difference between Revert and Update in Mercurial

  - by Edan Maor

  I'm just getting started with Mercurial, and I've come across something which I don't understand. I made changes to several files, and now I want to undo all the changes I made to one of them (i.e. go back to my last commit for one specific file). As far as I can see, the command I want is revert. In the page I linked to, there is the following statement: This operation however does not change the parent revision of the working directory (or revisions in case of an uncommitted merge). To undo an uncomitted merge, you can use "hg update -C -r." which will reset the parents to the first parent. I don't understand the difference between the two (hg revert vs. hg update -C -r). Can anyone enlighten me as to the difference? And in my case, do I really want the revert or the update to go get rid of the changes I made to the file? Thanks

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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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• Jquery hover to only have effect for certain amount of time

  - by Andrew Cassidy

  Hi, I'm using a jquery hover effect but would only like the effect to last for around a second when rolled over....ie user rolls over image, it changes for a second, then reverts back to the original image. $(document).ready(function(){ $(function() { $('.rollover').hover(function() { var currentImg = $(this).attr('src'); $(this).attr('src', $(this).attr('hover')); $(this).attr('hover', currentImg); }, function() { var currentImg = $(this).attr('src'); $(this).attr('src', $(this).attr('hover')); $(this).attr('hover', currentImg); }); }); }); This is the code I'm using for the standard hover. Any help would be great, thanks.

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• How to use sans-serif family, arial font in matplotlib, in ubuntu 12.04 lts?

  - by Shawn Wang

  I installed Ubuntu 12.04 LTS and the Scipy stack. I tried to set in matplotlibrc to use sans-serif family, arial font as default. While this has been working on my Windows computer, it reported the following warning: UserWarning: findfont: Font family ['sans-serif'] not found. Falling back to Bitstream Vera Sans (prop.get_family(), self.defaultFamily[fontext])) And it seems that the font is either not installed, or in a wrong name. I think I have installed the TrueType font (by googling), but I'd really appreciate it if anyone could help me to set the font family in the system with the name 'sans-serif' and find the relevant font files that belongs to this folder. Thank you! -Shawn

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• Retrieve binary data from S3 storage through AWS.NET in C#

  - by BerggreenDK

  I've tested most of the included samples in the AWS SDK for .NET and they all works fine. I can PUT objects, LIST objects and DELETE objects in a bucket, but... lets say I delete the original and want to sync those files missing locally? I would like to make a GET object (by key/name and bucket ofcause). I can find the object, but how do I read the binary data from S3 through the API? Do I have to write my own SOAP wrapper for this or is there some kinda sample for this out "here" ? :o) In hope of a sample. It does not have to tollerate execeptions etc. I just need to see the main parts that connects, retreives and stores the file back on my ASP.net or C# project. Anyone???

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• Iphone Loading another UIView to the active Window

  - by Ploetzeneder

  Hello, if i have got 1 Window and in the interface builder i add a second view, then in the Main Interface Builder Window I see 2 Views which are both called "View". How do I add one of this views programmatically to the m and the h file, and what do i have to edit in the interface builder so that i can run the second generated view (how do i name it,..) Is there a possibility to send a value to the other view, and to send one back (return)? Where can I read about it. Thx in advance, Andreas

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• Novocaine - How to loop file playback? (iOS)

  - by lppier

  I'm using Novocaine by alexbw Novocaine for my audio project. I'm playing around with the example code here for file reading. The file plays back with no problem. I would like to loop this recording with the gap between the loops - any suggestion as to how I can do so? Thanks. Pier. // AUDIO FILE READING OHHH YEAHHHH // ======================================== NSArray *pathComponents = [NSArray arrayWithObjects: [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject], @"testrecording.wav", nil]; NSURL *inputFileURL = [NSURL fileURLWithPathComponents:pathComponents]; NSLog(@"URL: %@", inputFileURL); fileReader = [[AudioFileReader alloc] initWithAudioFileURL:inputFileURL samplingRate:audioManager.samplingRate numChannels:audioManager.numOutputChannels]; [fileReader play]; [fileReader setCurrentTime:0.0]; //float duration = fileReader.getDuration; [audioManager setOutputBlock:^(float *data, UInt32 numFrames, UInt32 numChannels) { [fileReader retrieveFreshAudio:data numFrames:numFrames numChannels:numChannels]; NSLog(@"Time: %f", [fileReader getCurrentTime]); }];

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• Creating items in groups in Rails

  - by LearnRails

  My product table is id type price location 1 chips $3 aisle3 I have a question with adding the products in groups. There is a quantity field(nonmodel) where the user can enter the quantity While adding a new product if the user enters: type: soda quantity: 3 Then there 3 records should be created in product model with type= soda like the following. id type 2 soda 3 soda 4 soda If user enters location: aisle4 quantity: 2 Then id location 5 ailse4 6 ailse4 Can you tell me how to pass the nonmodel field 'quantity' to the rails(model or controller) and how use it to add the products in groups as mentioned above? or should I create a column called quantity in my product table? Will the history be updated too for all these new records with after_create filter which I already have ? Is there any good tutorial or book which shows how to pass such nonmodel html/javascript fields from view to rails and then back to the view? Any help will be greatly appreciated. Thanks

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• Cloning just a particular directory with hg?

  - by leeand00

  I come from a Subversion background, but I am slowly migrating to Mercurial. When starting on many of my projects, I would setup a development environment that was configured to a particular starting point in developing an app/webapp/program (much like a Maven 2 archetype, but not necessarily Java/Maven). Later I would checkout this archetype/template project out of my svn repo by its particular path; and than export the working copy from version control by the repository; so that I could import the working copy back in to another repository without adding the changes that I made to the working copy to the base the template/archetype project. I've tried doing the same thing in Mercurial, and I've run into a wall since I can't check out, er..um..no, clone a specific path from the hg repository. If I want to achieve the same sort of functionality using Mecurial, what should I do? Use tagged branches? The archetypes/template projects are very different, but I'd like to keep them in the same repository.

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• Event Tracking

  - by DRapp

  I want to understand event cycles. I have a form with a grid and textboxes. It has a grid, bound to DataTable, and textboxes bound to same table too. I'm trying to debug something and need to know how to identify ALL events fired in the form to see what may solve an issue for me. Anyhow, unless I explicitly subclass every class on my form, and override / attach to every event to my own event handlers, how can I get / listen to all events being fired during a certain action... Such as changing a "Selected" road in a DataGridView. It obviously updates its own "CurrentRow"... I need to know what / how to maybe FORCE a re-loading of SAME CurrentRow. Reason: during a form level "Edit Mode", and I change the content in another "Textbox" control, and reject changes, I need it to simulate the current "Record" is reloaded to go back to its original values.

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• IDbTransaction Rollback Timeout

  - by Ben

  I am dealing with an interesting situation where I perform many database updates in a single transaction. If these updates fail for any reason, the transaction is rolled-back. IDbTransaction transaction try { transaction = connection.BeginTransaction(); // do lots of updates (where at least one fails) transaction.Commit(); } catch { transaction.Rollback(); // results in a timeout exception } finally { connection.Dispose(); } I believe the above code is generally considered the standard template for performing database updates within a transaction. The issue I am facing is that whilst transaction.Rollback() is being issued to SQL Server, it is also timing out on the client. Is there anyway of distinguishing between a timeout to issue the rollback command and a timeout on that command executing to completion? Thanks in advance, Ben

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• Using Server side method from Javascript without AJAX

  - by Aswin Ramakrishnan

  I have a tricky problem. I am in a situation where I need to use a method defined in a .cs file from a javascript function. The problem is we are using .NET 1.1 and AJAX cannot be used for the application. Also, I will need to pass a string from the javascript to the server side method. The page where I am implementing the javascript is a .as Any ideas? I have tried doing a post back and creating a RaisePostBack event handler method (both in the .aspx page and the .ascx user control) but no luck. It will be greatly appreciated if someone could help me out with the problem.

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• CodePlex Daily Summary for Thursday, March 10, 2011

  CodePlex Daily Summary for Thursday, March 10, 2011Popular ReleasesTweetSharp: TweetSharp v2.0.0: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Beta ChangesAdded user streams support Serialization is not attempted for Twitter 5xx errors Fixes based on feedback Third Party Library VersionsHammock v1.2.0: http://hammock.codeplex.com Json.NET 4.0 Release 1: http://json.codeplex.comSharePoint Field Groups To Users: GroupsToUsers Release 1.0: SharePoint "Groups to Users" is a custom field that displays two separate drop-down lists. The first drop-down populates with all SharePoint Groups from the current web. By selecting a particular group the second drop-down list gets populated with all Users within the selected SharePoint group.DirectQ: Release 1.8.7 (RC2): More fixes and improvements. Note for multiplayer - you may need to set r_waterwarp to 0 or 2 before connecting to a server, otherwise you will get a "Mod_PointInLeaf: bad model" error and not be able to connect. You can set it back to 1 after you connect, of course. This only came to light after releasing, and will be fixed in the next one.Microsoft All-In-One Code Framework: Visual Studio 2008 Code Samples 2011-03-09: Code samples for Visual Studio 2008Office Web.UI: Version 2.4: After having lost all modifications done for 2.3. I finally did it again... Have a look at http://www.officewebui.com/change-log Also, the documentation continues to grow... http://www.officewebui.com/category/kb ThanksmyCollections: Version 1.3: New in version 1.3 : Added Editor management for Books Added Amazon API for Books Us, Fr, De Added Amazon Us, Fr, De for Movies Added The MovieDB for Fr and De Added Author for Books Added Editor and Platform for Games Added Amazon Us, De for Games Added Studio for XXX Added Background for XXX Bug fixing with Softonic API Bug fixing with IMDB UI improvement Removed GraceNote Added Amazon Us,Fr, De for Series Added TVDB Fr and De for Series Added Tracks for Musi...Facebook Graph Toolkit: Facebook Graph Toolkit 1.1: Version 1.1 (8 Mar 2011)new Dialog class for redirecting users to Facebook dialogs new Async publishing methods new Check for Extended Permissions option fixed bug: inappropiate condition of redirecting to login in Api class fixed bug: IframeRedirect method not workingpatterns & practices : Composite Services: Composite Services Guidance - CTP2: This is the second CTP of the p&p Composite Service Guidance.Python Tools for Visual Studio: 1.0 Beta 1: Beta 1You can't install IronPython Tools for Visual Studio side-by-side with Python Tools for Visual Studio. A race condition sometimes causes local MPI debugging to miss breakpoints. When MPI jobs on a cluster fail they don’t get cleaned up correctly, which can cause debugging to stall because the associated MPI job is stuck in the queue. The "Threads" view has a race condition which can cause it not to display properly at times. VS2010 shortcuts that are pinned to the taskbar are so...DotNetAge -a lightweight Mvc jQuery CMS: DotNetAge 2: What is new in DotNetAge 2.0 ? Completely update DJME to DJME2, enhance user experience ,more beautiful and more interactively visit DJME project home to lean more about DJME http://www.dotnetage.com/sites/home/djme.html A new widget engine has came! Faster and easiler. Runtime performance enhanced. SEO enhanced. UI Designer enhanced. A new web resources explorer. Page manager enhanced. BlogML supports added that allows you import/export your blog data to/from dotnetage publishi...Kooboo CMS: Kooboo CMS 3.0 Beta: Files in this downloadkooboo_CMS.zip: The kooboo application files Content_DBProvider.zip: Additional content database implementation of MSSQL,SQLCE, RavenDB and MongoDB. Default is XML based database. To use them, copy the related dlls into web root bin folder and remove old content provider dlls. Content provider has the name like "Kooboo.CMS.Content.Persistence.SQLServer.dll" View_Engines.zip: Supports of Razor, webform and NVelocity view engine. Copy the dlls into web root bin folder t...ASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.7.2: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager added fullscreen for the popup and popupformIronPython: 2.7 Release Candidate 2: On behalf of the IronPython team, I am pleased to announce IronPython 2.7 Release Candidate 2. The releases contains a few minor bug fixes, including a working webbrowser module. Please see the release notes for 61395 for what was fixed in previous releases.LINQ to Twitter: LINQ to Twitter Beta v2.0.20: Mono 2.8, Silverlight, OAuth, 100% Twitter API coverage, streaming, extensibility via Raw Queries, and added documentation.Minemapper: Minemapper v0.1.6: Once again supports biomes, thanks to an updated Minecraft Biome Extractor, which added support for the new Minecraft beta v1.3 map format. Updated mcmap to support new biome format.Sandcastle Help File Builder: SHFB v1.9.3.0 Release: This release supports the Sandcastle June 2010 Release (v2.6.10621.1). It includes full support for generating, installing, and removing MS Help Viewer files. This new release is compiled under .NET 4.0, supports Visual Studio 2010 solutions and projects as documentation sources, and adds support for projects targeting the Silverlight Framework. This release uses the Sandcastle Guided Installation package used by Sandcastle Styles. Download and extract to a folder and then run SandcastleI...AutoLoL: AutoLoL v1.6.4: It is now possible to run the clicker anyway when it can't detect the Masteries Window Fixed a critical bug in the open file dialog Removed the resize button Some UI changes 3D camera movement is now more intuitive (Trackball rotation) When an error occurs on the clicker it will attempt to focus AutoLoLYAF.NET (aka Yet Another Forum.NET): v1.9.5.5 RTW: YAF v1.9.5.5 RTM (Date: 3/4/2011 Rev: 4742) Official Discussion Thread here: http://forum.yetanotherforum.net/yaf_postsm47149_v1-9-5-5-RTW--Date-3-4-2011-Rev-4742.aspx Changes in v1.9.5.5 Rev. #4661 - Added "Copy" function to forum administration -- Now instead of having to manually re-enter all the access masks, etc, you can just duplicate an existing forum and modify after the fact. Rev. #4642 - New Setting to Enable/Disable Last Unread posts links Rev. #4641 - Added Arabic Language t...Snippet Designer: Snippet Designer 1.3.1: Snippet Designer 1.3.1 for Visual Studio 2010This is a bug fix release. Change logFixed bug where Snippet Designer would fail if you had the most recent Productivity Power Tools installed Fixed bug where "Export as Snippet" was failing in non-english locales Fixed bug where opening a new .snippet file would fail in non-english localesChiave File Encryption: Chiave 1.0: Final Relase for Chave 1.0 Stable: Application for file encryption and decryption using 512 Bit rijndael encyrption algorithm with simple to use UI. Its written in C# and compiled in .Net version 3.5. It incorporates features of Windows 7 like Jumplists, Taskbar progress and Aero Glass. Now with added support to Windows XP! Change Log from 0.9.2 to 1.0: ==================== Added: > Added Icon Overlay for Windows 7 Taskbar Icon. >Added Thumbnail Toolbar buttons to make the navigation easier...New ProjectsAll2Iso: Convert any disk image format to ISO. Actually it can only convert from BIN. Any help is appreciated.Asset Management by Joko for GENCPROS: This is my initial test project using codeplex storageAxvius: Axvius' core C# API library. Includes, Now, a class for overriding the system clock; especially useful for unit tests.Collision Avoidance Simulator: The vertex buffer, in conjunction with the spatial conguration of human models, a particle system and a reduced set of rules are processed in order to obtain a dynamic knowledge base for collision avoidance calculations. Developed in C++.Configuring role link in Biztalk 2009: Configuring role link in Biztalk 2009CrazySnake: Crazy Snake é o famoso jogo da cobra, esse em sua versão tanto para windows, quanto para windows phone 7dIRca WP7 IRC Client: IRC client with possible SL/WPF ports. Utilizes native tcp sockets until the communication layer from MS solidifies. Basically put, this project would not exist without the work of some wp7 hackers. Pip pip old boys.DoanVienProject: Ðây là porject qu?n lý doàn viênDynamics AX Build Scripts: Sharing build scripts for Dynamics AX integration with source control, focused on Team Foundation Server (TFS)EPiServer CMS ElencySolutions.MultipleProperty: The MultipleProperty classes are for use in EPiServer CMS 6 and provide an easy way for developers to build complex custom properties that comprise of other EPiServer custom properties. Feriados Móveis Brasil: This project aim to calculate the holidays in Brazil who is based on catholic dates. The main holiday is the Easter Sunday and the other holidays are calculated based on that date. Cálculo de feriados móveis para o Brasil baseados nas datas festivas católicas.flyskynet: myselft projectGriffTom: GriffTomImage Resizer (????????): ??????????????????，????????????????。?????jpg??。 ??????，????????????。iPray: Islamic Prayer Software.Japanese Learners & Enthusiasts Kanji Project: Help create games, puzzles, and exercises to assist learners of Japanese to master Kanji comprehension. Games/etc. will be written in C#, jQuery and/or Silverlight for ASP.NET MVC 3 Razor. Initial goal is for a user of the site to master grade level 1 Kanji (first 80 Kanji).MailChimp Amazon Simple Email Service .NET Wrapper: A .NET 4 wrapper for MailChimp's Amazon Simple Email Service. It's developed in C# using Hammock.NGuice: .NET????Guice???????????。???.NET?????????，?Guice?.NET??????????。???????：http://code.google.com/p/google-guice/Rubrica Persone: Libreria che contiene gli oggetti e le form per la gestione di una rubrica di persone, facilmente integrabile in altre applicazioni.SCCM Client Center Integration Pack for Opalis: "SCCM Client Center Integration Pack for Opalis" is an System Center Opalis Integration Pack to manage and orchestrate System Center Configuration Manager (SCCM) 2007 Agents from Opalis workflows.Sugar-free programming: I like to think about breadth or depth developer, or Mort, Elvis, or Einstein developer stereotypes, as roles we could play accordingly to the task at hand…see more: http://blogs.msdn.com/b/marcod/archive/2011/03/01/sugarfreecs1.aspxTest Project 1: This is test project siteTestZoner: TestZoneTextBookReader: ???????????????????????，??????????，??????！ ??.net 2.0uSiteBuilder: uSiteBuilder is a framework made for .NET developers to simplify, speedup and take Umbraco development to next level. Aim of this framework is to reduce developer interaction with Umbraco back-end (browser based development), to create Umbraco websites in a more .NET way...VinculacionMicrosoft: Vinculacion Microsoft is a project for distributing Dreamsparks and Faculty Connection codes to students and professors. It is developed in ASP .Net and designed for Universities in Mexico interested in the different benefits that Microsoft has for them. Vio: Vio is an application for Sharetronix Based websites. Allowing users to connect to their community via their Windows Desktop.whatsnew.exe a command line utility to find new files: whatsnew.exe is a command line utility that lists the files created (new files) in a given number of days. whatsnew.exe 's syntax is very simple: whatsnew path numberofdays Also whatsnew supports other options like HTML or XML output, hyperlinked outputs and more.

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• mysql random generated value

  - by bbutle01

  I need to generate a random alpha/numeric to give to users that they come to the site to enter. I dont' know much about random numbers and such, I know there are seeding issues and such, but I'm not sure what they are. So, I used this: select substrING(md5(concat_ws('-',md5(username_usr), MD5(zip_usr), MD5(id_usr), MD5(created_usr))),-12) from users_usr Is this safe? I used concat_ws because sometimes zip is null, but the others never are. And yes, I know this is kinda short, but 1. They have to enter the last 4 of their social, 2. It's 1 time use, 3. There's no private data displayed back in the application and 4. I may use captcha, but since there's no private data, thats probably overkill. THanks

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• Subversion merging, tree merge

  - by krystan honour

  I need to merge changes from a branch back into trunk but want to continue work on the existing branch. I was going to use a re-integrate merge but realised this is not suitable as I will need to recreate my branch etc which for a variety of reasons is not desirable. What I really want to do is merge the current revisions in the branch down to head and then keep people working on their current working copies. So my question is , can tree merge be used to solve this or do I have to reintegrate and recreate.

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• Convert the ada code to its C .

  - by maddy

  HI All, I have a piece of ada code shown below which is a simple switch case statements.Is there any better way to convert this into C. for I in 1..100 loop case I is when 100 => Dollars := Dollars + 1; when 25|50|75 => Quarters := Quarters + 1; when 10|20|30|40|60|70|80|90 => Dimes := Dimes + 1; when 5|15|35|45|55|65|85|95 => Nickles := Nickles + 1; when others => Pennies := Pennies + 1; end case; end loop; Now by adding the switch and the case for each values in the case,i can do that conversion,But it seems tyo make the code too big.Is there anywa other simple and compact way.Please get back to me if the question is not clear? Regards maddy

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• Passing data between states PHP

  - by esryl

  So I am using Limonade PHP which has a RESTful design which emulates PUT, POST, DELETE routes for create, update, delete. I am trying to develop some form validation which is going well. The major problem I am facing though is how to return my filtered data (which has failed validation) back to repopulate the create or edit form. How would this be done? I currently have for creating a page: /admin/page/new -> GET function /admin/page -> POST function + validate + pass, update db + fail, add errors to flash, redirect to /admin/page/mew It all falls down as I do not know how to populate the /admin/page/new with the invalid, but filtered data.

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• How to find NSOutlineView row index when using NSTreeController

  - by velocityb0y

  I'm using an NSTreeController to manage nodes for an NSOutlineView. When the user adds a new item, I create a new object and insert it: EntityViewEntityNode *newNode = [EntityViewEntityNode nodeWithName:@"New entity" entity:newObject]; // Insert at end of group // NSIndexPath *insertAt = [pathOfGroupNode indexPathByAddingIndex:[selected.children count]]; [entityCollectionTreeController insertObject:newNode atArrangedObjectIndexPath:insertAt]; Now I'd like to open the table column for edit so the user can name the new item. This seems logical: NSInteger row = [entityCollectionOutlineView rowForItem:newNode]; [entityCollectionOutlineView editColumn:0 row:row withEvent:nil select:YES]; However, row is always -1 indicating the object isn't found. Poking around reveals that the tree controller is not actually putting my objects directly in the tree, but is wrapping them in a node object of its own. Anyone have insight into how I would go about getting a row index relative to the outline view, so I can do this (without, hopefully, enumerating everything in the outline view and figuring out the mapping back to my node?)

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• InApp Purchase on slow network

  - by Chandan Shetty SP

  My InApp purchase code works fine in normal network, but in very slow network(safari browser will take 5 min to load a webpage). I am not getting any delegates... - (void)requestDidFinish:(SKRequest *)request - (void)request:(SKRequest *)request didFailWithError:(NSError *)error - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response So my code blocks indefinetly because i am setting setUserInteractionEnabled to FALSE initially and setting it back to TRUE in the above delegates... [[[UIApplication sharedApplication]keyWindow]setUserInteractionEnabled:FALSE]; Is it possible to check the network status before creating "SKProductsRequest" or any better way to implement inApp Purchase? Thanks in advance,

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• Is there a way to disable calls to Runtime.checkRestricted on the GAE Java development server under Eclipse?

  - by Thomas Becker

  I'm one of those guys who step through their code a lot during development. Beginning with version 1.6.4 of the GAE Java development server, the server has been instrumented with calls to a function named Runtime.checkRestricted. This causes two inconveniences when I step through my code: 1) Whenever I step into a function, the debugger goes into the function Runtime.checkRestricted (for which there is no source code) at least once, often multiple times. 2) Whenever I step over a function call which has a large call tree underneath it, then it takes a very long time for the debugger to come back. (That's always a problem in the Eclipse Java debugger, but now it's really bad.) For me, all this causes a serious drain on productivity. Is there any way to disable this instrumentation, or to prevent the debugger from stepping into it? I am using Eclipse with the GAE plugin.

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• bash: how to know NUM option in grep -A -B "on the fly" ?

  - by Michael Mao

  Hello everyone: I am trying to analyze my agent results from a collection of 20 txt files here. If you wonder about the background info, please go see my page, what I am doing here is just one step. Basically I would like to take only my agent's result out of the messy context, so I've got this command for a single file: cat run15.txt | grep -A 50 -E '^Agent Name: agent10479475' | grep -B 50 '^==' This means : after the regex match, continue forward by 50 lines, stop, then match a line separator starts with "==", go back by 50 lines, if possible (This would certainly clash the very first line). This approach depends on the fact that the hard-coded line number counter 50, would be just fine to get exactly one line separator. And this would not work if I do the following code: cat run*.txt | grep -A 50 -E '^Agent Name: agent10479475' | grep -B 50 '^==' The output would be a mess... My question is: how to make sure grep knows exactly when to stop going forward, and when to stop getting backward? Any suggestion or hint is much appreciated.

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• Escape characters during paste in vim

  - by Michael Anderson

  I copy stuff from output buffers into C++ code I'm working on in vim. Often this output gets stuck into strings. And it'd be nice to be able to escape all the control characters automatically rather than going back and hand editing the pasted fragment. As an example I might copy something like this: error in file "foo.dat" And need to put it into something like this std::string expected_error = "error in file \"foo.dat\"" I'm thinking it might be possible to apply a replace function to the body of the last paste using the start and end marks of the last paste, but I'm not sure how to make it fly.

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• How can it be impossible to "decrypt" an MD5 hash?

  - by Rob

  I was reading a question about MD5, and it made me remember something that boggles me. Very simple question, and I'm sorry if it's not a good one. I just can't understand how you convert something to one thing using some algorithm, and there being no way to convert it back using the algorithm in reverse. So how is this possible? Also, since multiple strings can create the same MD5 hash, due to it being less data than the input string, how would any other hashing system be any better?

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• How to Identify a ListViewItem to Update a Single Row

  - by tunneling

  I have a ListView displays information about an object. When I click a ListView Item, I open an Activity that let's me manipulate parameters of the object held in the adapter. These parameters are updated and stored remotely. When I return to the ListView (via the back button), I want to update the ListView Item that I clicked originally by requesting the parameter values from the remote server. I am currently doing this up updating the entire ListView by clearing it and rebuilding it. How do I reference the ListView Item so that I can update the data for that item only? Thanks, Jason

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• PredicateBuilder "And" Method not working

  - by mikemurf22

  I have downloaded the predicate builder and am having a difficult time getting it to work with the entity framework. Here is my code: v_OrderDetail is the entity var context = new OrdersEntities(); Expression<Func<v_OrderDetail,bool>> whereClause = w => true; var predicate = PredicateBuilder.True<v_OrderDetail>(); predicate.And(w => w.Status == "Work"); var results = context.v_OrderDetail.AsExpandable().Where(predicate); When I look at the results I get back every order. The And predicate doesn't seem to take. When I look at the predicate.parameters.count it only shows 1. I'm not sure, but I would expect it to show 2 after I add the second one. Any help is greatly appreciated.

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