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  • Why the good append syntax is so ugly, asks python newbie

    - by Cawas
    Now following my series of "python newbie questions" and based on another question. Go to http://python.net/~goodger/projects/pycon/2007/idiomatic/handout.html#other-languages-have-variables and scroll down to "Default Parameter Values". There you can find the following: def bad_append(new_item, a_list=[]): a_list.append(new_item) return a_list def good_append(new_item, a_list=None): if a_list is None: a_list = [] a_list.append(new_item) return a_list So, question here is: why is the "good" syntax over a known issue ugly like that in a programming language that promotes "elegant syntax" and "easy-to-use"? Why not just something in the definition itself, that the "argument" name is attached to a "localized" mutable object like: def better_append(new_item, a_list=[].local): a_list.append(new_item) return a_list I'm sure there would be a better way to do this syntax, but I'm also almost positive there's a good reason to why it hasn't been done. So, anyone happens to know why?

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  • Why CSS Transitions -module does not support image-to-image transitions?

    - by Kai Sellgren
    Hi, I've read the spec for CSS Transitions Module Level 3 and I'd like to know why it does not support image-based transitions. According to the draft, the background-image transitions are only supported when using with gradients. Both Webkit and Gecko seems to follow this practice. It's just that I see this as a major drawback. HTML 5 and CSS 3 could become the killer of Flash, but if I can't even transit between two images, I don't see how one could have beautiful menus without Flash.

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  • Apple iPad and PDF support

    - by STeN
    Hi, I have few questions related to the PDF and its use on the Apple iPad: 1) Does the iPad support all Quartz PDF functions (i.e. all CGPDFxxx functions/classes)? 2) Does the iPad support the PDF Kit? 3) Is it possible with any of one of both APIs, based on the coordinates of the finger touch to detect the underlying PDF item (e.g. article, text, annotations) ? 4) What is the difference between the Quartz PDF functions and PDF Kit? Thanks a lot Regards, STeN

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  • How do I use Python's itertools.groupby()?

    - by James Sulak
    I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: take a list - in this case, the children of an objectified lxml element - divide it into groups based on some criteria, and then later iterate over each of these groups separately. I've reviewed the documentation (http://docs.python.org/lib/itertools-functions.html), and the examples, (http://docs.python.org/lib/itertools-example.html), but I've had trouble trying to apply them beyond a simple list of numbers. So, how do I use of itertools.groupby()? Is there another technique I should be using? Pointers to good "prerequisite" reading would also be appreciated.

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  • Best practice No1: inline search layout across browsers

    - by Sixfoot Studio
    Ok, I have managed to fix my version of this example using a multitude of hacks and I would like to see how others would tackle this problem making this cross-browser compatible without too many hacks. <div class="searchDiv"> <img src="Images/left.gif" class="left" height="19" width="3" /> <input id="TextBox" type="text" class="searchField" /> <img src="Images/right.gif" height="19"width="3" class="right" /> <a href="" class="submit">Submit</a> <img src="Images/box-arrow.gif" class="linkArrow" width="8" height="14" /> </div> I am using a Transitional DTD in my example. Based on the everyone else's CSS examples, comments and answers I will make the final vote. I'd love to see more of these scenarios come up so that people have a library of "best practice" methods which they can find on SO. Good luck

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  • Must have JavaScript pro developer tools, libs, utilities and workshop configuration.

    - by WooYek
    This is a followup question to the Pro JavaScript programmer interview questions (with answers). What is considered professional and industrial standard for a professional browser side Java Script developer when it comes to his workshop configuration, and maybe from-concept-to-shipment process? What are the most popular IDE's, utilities and probably libraries, not limited to the free ones. These that can help cut development time (eg. IDE), help with achieve better quality (eg. unit testing tools), reliability and maintainability. I'm looking for a baseline to which I could compare potential candidates based on their ability to keep their tools sharp and workshop efficient (pro's should invest time&money in good tools, right?).

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  • What Determines the Default Setting of the x87 FPU Control Word?

    - by Rick Regan
    What determines the default setting of the x87 FPU control word -- specifically, the precision control field? Does the compiler set it based on the target processor? Is there a compiler option to change it? Using Microsoft Visual C++ 2008 Express Edition on an Intel Core Duo processor, the default setting for the precision control field is "01b", meaning double (53 bit) precision. I'm wondering -- why is the default not "11"b, or extended (64 bit) precision? (I know I can change it using _controlfp.)

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  • Unit Testing Codeigniter Classes with fooStack - clashes

    - by DrPep
    I'm having 'fun' testing interactions in a CodeIgniter based web app. It seems when running the entire test suite "phpunit AllTests.php" it loads all of the test classes, their targets (Systems under Test) and creates a PHPUnit_Framework_TestSuite instance which presumably iterates over the classes which extend CIUnit_TestCase and runs them. The problem comes where you have multiple classes referencing another class (such as a library). As all the classes are loaded into the same process space, PHP reports "cannot redefine class xyz". Have I missed something here or doing something haenously wrong? In my test class i'm doing something like: include_once dirname(__FILE__).'/../CIUnit.php'; include_once dirname(__FILE__).'/../../libraries/ProductsService.php'; class testProductsService extends CIUnit_TestCase { public function testGetProducts_ReturnsArrayOfProducts(){ $service = new ProductsService(); $products = $service->getProducts(); $this->assertTrue(is_array($products)); } } The problem manifests as I have a controller which does: $this->load->library('ProductsService');

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  • Experiences with UI Automation and WPF

    - by soren.enemaerke
    We are developing a rather large WPF based application and would like to include some automated UI testing in our test suite (which already contains a number of unit tests). The UI Automation Framework from Microsoft partly sounds like a perfect fit for programatically launching and interacting with the application in a test setup. However, I've struggled to find solid references for samples and experiences with the technology, the articles and small samples available on MSDN is not enough to convince me that it is a solid choice. So, does anybody have real world experiences using the UI Automation Framework in their test suite? What are the caveats and the gotchas? Any best practices when written tests scripts, can you "record and replay" to a scriptable format, how much should you facilitate the testing from the application, how did you incorporate it in the automatic build? Should we be looking in another direction than the UI Automation Framework? Feel free to post you experiences here or link to some good references I might have missed

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  • Returning Index in Enumerable Select

    - by Jon
    I have a List<MyClass> with 2 items which have a SequenceNumber property. If I use this code below the returned index is 0 not 1: var test = TrackingCollection .Where(x => x.SequenceNumber == 2) .Select((item, index) => new { index, item.SequenceNumber }); Is this because that refers to 0 as the index in my new anonymous type or is it some zero index based weirdness that I just need to increment. What I'm after is to return the index in TrackingCollection where the sequence number is 2 or 887 or any other correct index in the original collection...

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  • Ensuring unique ID attribute for elements within ScriptControl

    - by Andy West
    I'm creating a control based on ScriptControl, and I'm overriding the Render method like this: protected override void Render(HtmlTextWriter writer) { RenderBeginTag(writer); writer.RenderBeginTag(HtmlTextWriterTag.Div); writer.Write("This is a test."); writer.RenderEndTag(); RenderEndTag(writer); } My question is, what if I want to assign the div an ID attribute and have it be unique on the page, even if there are mulitple instances of my control? I've seen other people's code that does this: writer.AddAttribute(HtmlTextWriterAttribute.Id, this.ID + "_divTest"); That will prevent naming conflicts between instances of my control, but what if I've already created a div elsewhere on the page that coincidentally has the same ID? I've also heard about implementing INamingContainer. Would that apply here? How could I use it?

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  • C# Linq Entity Conversion Error on Nonexistent Value?

    - by Ryan
    While trying to query some data using the Linq Entity Framework I'm receiving the following exception: {"Conversion failed when converting the varchar value '3208,7' to data type int."} The thing that is confusing is that this value does not even exist in the view I am querying from. It does exist in the table the view is based on, however. The query I'm running is the following: return context.vb_audit_department .Where(x => x.department_id == department_id && x.version_id == version_id) .GroupBy(x => new { x.action_date, x.change_type, x.user_ntid, x.label }) .Select(x => new { action_date = x.Key.action_date, change_type = x.Key.change_type, user_ntid = x.Key.user_ntid, label = x.Key.label, count = x.Count(), items = x }) .OrderByDescending(x => x.action_date) .Skip(startRowIndex) .Take(maximumRows) .ToList(); Can somebody explain why LINQ queries the underlying table instead of the actual view, and if there is any way around this behavior?

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  • How to secure connection between PHP and Android

    - by Elad Cohen
    I am developing an application for the Android that requires a connection with PHP pages in order to add sensitive data to a database that will affect the application. Since it's very easy to reverse engineer an android app, one can simply find the url where the data is sent to and manipulate it. I thought about creating a registration based on IMEI, but one can still able to manipulate it for his malicious purposes. I have also checked OAuth but I didn't really understand how it works and if it can help in my condition. What can I do to fully secure my application? Thanks in advance! EDIT: By the way, what I am mostly trying to achieve here is to make sure the requests are being sent from an Android and not from any other device.

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  • CodePlex Daily Summary for Tuesday, November 23, 2010

    CodePlex Daily Summary for Tuesday, November 23, 2010Popular ReleasesSilverlight and WP7 Exception Handling and Logging building block: first version: Zipped full source code.Wii Backup Fusion: Wii Backup Fusion 0.8.2 Beta: New in this release: - Update titles after language change - Tool tips for name/title - Transfer DVD to a specific image file - Download titles from wiitdb.com - Save Settings geometry - Titles and Cover language global in settings - Convert Files (images) to another format - Format WBFS partition - Create WBFS file - WIT path configurable in settings - Save last path in Files/Load - Sort game lists - Save column width - Sequenz of columns changeable - Set indicated columns in settings - Bus...TweetSharp: TweetSharp v2.0.0.0 - Preview 2: Preview 2 ChangesIntroduced support for .NET Framework 2.0 Supported Platforms: .NET 2.0, .NET 3.5 SP1, .NET 4.0 Client Profile, Windows Phone 7 Twitter API coverage: accounts blocks direct messages favorites friendships notifications saved searches timelines tweets users Preview 1 ChangesIntroduced support for OAuth Echo Supported Platforms: .NET 4.0, Windows Phone 7 Twitter API coverage: timelines tweets Version 2.0 Overview / RoadmapMajor rewrite for simplic...SQL Monitor: SQL Monitor 1.3: 1. change sys.sysprocesses to DMV: http://msdn.microsoft.com/en-us/library/ms187997.aspx select * from sys.dm_exec_connections select * from sys.dm_exec_requests select * from sys.dm_exec_sessions 2. adjust columns to fit without scrollingMiniTwitter: 1.60: MiniTwitter 1.60 ???? ?? Twitter ?????????????????????????????? ??????????????????、?????????????????? ?????????????????????????????? ???????????????????????????????????????Minemapper: Minemapper v0.1.1: Fixed 'Generate entire world image', wasn't working. Improved Java detection for biome support. Biomes button is automatically unchecked if Java cannot be found in either the path environment variable or the Windows Registry. Fixed problem where Height + and - buttons would change the height more than one each click. Added keyboard shortcuts for navigation controls. You can now press and hold navigation buttons to continuously pan/zoom.VFPX: FoxBarcode v.0.11: FoxBarcode v.0.11 - Released 2010.11.22 FoxBarcode is a 100% Visual FoxPro class that provides a tool for generating images with different bar code symbologies to be used in VFP forms and reports, or exported to other applications. Its use and distribution is free for all Visual FoxPro Community. Whats is new? Added a third parameter to the BarcodeImage() method Fixed some minor bugs History FoxBarcode v.0.10 - Released 2010.11.19 - 85 Downloads Project page: FoxBarcodeDotNetAge -a lightweight Mvc jQuery CMS: DotNetAge 1.1.0.5: What is new in DotNetAge 1.1.0.5 ?Document Library features and template added. Resolve issues of templates Improving publishing service performance Opml support added. What is new in DotNetAge 1.1 ? D.N.A Core updatesImprove runtime performance , more stabilize. The DNA core objects model added. Personalization features added that allows users create the personal website, manage their resources, store personal data DynamicUIFixed the PageManager could not move page node bug. ...ASP.NET MVC Project Awesome (jQuery Ajax helpers): 1.3.1 and demos: 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 and Pager tested on mozilla, safari, chrome, opera, ie 9b/8/7/6DotSpatial: DotSpatial 11-21-2010: This release introduces the following Fixed bugs related to dispose, which caused issues when reordering layers in the legend Fixed bugs related to assigning categories where NULL values are in the fields New fast-acting resize using a bitmap "prediction" of what the final resize content will look like. ImageData.ReadBlock, ImageData.WriteBlock These allow direct file access for reading or writing a rectangular window. Bitmaps are used for holding the values. Removed the need to stor...Sincorde Silverlight Library: 2010 - November: Silverlight 4 Visual Studio 2010 Microsoft Expression dependencies removed Design-Time bug fixedMDownloader: MDownloader-0.15.24.6966: Fixed Updater; Fixed minor bugs;WPF Application Framework (WAF): WPF Application Framework (WAF) 2.0.0.1: Version: 2.0.0.1 (Milestone 1): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Remark The sample applications are using Microsoft’s IoC container MEF. However, the WPF Application Framework (WAF) doesn’t force you to use the same IoC container in your application. You can use ....NET Extensions - Extension Methods Library for C# and VB.NET: Release 2011.01: Added new extensions for - object.CountLoopsToNull Added new extensions for DateTime: - DateTime.IsWeekend - DateTime.AddWeeks Added new extensions for string: - string.Repeat - string.IsNumeric - string.ExtractDigits - string.ConcatWith - string.ToGuid - string.ToGuidSave Added new extensions for Exception: - Exception.GetOriginalException Added new extensions for Stream: - Stream.Write (overload) And other new methods ... Release as of dotnetpro 01/2011Microsoft All-In-One Code Framework: Visual Studio 2010 Code Samples 2010-11-19: Code samples for Visual Studio 2010Prism Training Kit: Prism Training Kit 4.0: Release NotesThis is an updated version of the Prism training Kit that targets Prism 4.0 and added labs for some of the new features of Prism 4.0. This release consists of a Training Kit with Labs on the following topics Modularity Dependency Injection Bootstrapper UI Composition Communication MEF Navigation Note: Take into account that this is a Beta version. If you find any bugs please report them in the Issue Tracker PrerequisitesVisual Studio 2010 Microsoft Word 2...Free language translator and file converter: Free Language Translator 2.2: Starting with version 2.0, the translator encountered a major redesign that uses MEF based plugins and .net 4.0. I've also fixed some bugs and added support for translating subtitles that can show up in video media players. Version 2.1 shows the context menu 'Translate' in Windows Explorer on right click. Version 2.2 has links to start the media file with its associated subtitle. Download the zip file and expand it in a temporary location on your local disk. At a minimum , you should uninstal...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts v3.6.4 Released: Hi, Today we are releasing Visifire 3.6.4 with few bug fixes: * Multi-line Labels were getting clipped while exploding last DataPoint in Funnel and Pyramid chart. * ClosestPlotDistance property in Axis was not behaving as expected. * In DateTime Axis, Chart threw exception on mouse click over PlotArea if there were no DataPoints present in Chart. * ToolTip was not disappearing while changing the DataSource property of the DataSeries at real-time. * Chart threw exception ...Microsoft SQL Server Product Samples: Database: AdventureWorks 2008R2 SR1: Sample Databases for Microsoft SQL Server 2008R2 (SR1)This release is dedicated to the sample databases that ship for Microsoft SQL Server 2008R2. See Database Prerequisites for SQL Server 2008R2 for feature configurations required for installing the sample databases. See Installing SQL Server 2008R2 Databases for step by step installation instructions. The SR1 release contains minor bug fixes to the installer used to create the sample databases. There are no changes to the databases them...VidCoder: 0.7.2: Fixed duplicated subtitles when running multiple encodes off of the same title.New ProjectsAlien Terminator: Alien TerminatorArchWeb 2.0: ArchWeb è un'applicazione che unita al sito web permette di gestire documenti aziendali e mail preimpostate. ArchWeb supporta file di qualsiasi estensione (di dimensini variabili fino a 1.5 GB), tutti i tipi di documenti del pacchetto Microsoft Office o del pacchetto Adobe.Azure Table Sync Lib: Developing custom sync providers for Windows Azure Table Storage to support the following sync scenarios 1. Azure Table <-> SQL Server 2. Azure Table <-> SQL CE 3. Azure Table <-> SQL AzureColecaoFilmes: Prova de conceito usando DDD, ASP.NET MVC 3, NHibernate, Fluent Nhibernate e Ninject.Coleotrack: Coleotrack: ASP.NET MVC Issue Tracking.dmgbois: Personal repo.DNN Social Bookmark: DotNetNuke plugin for adding social media components.docNET: docNET grew out of my own battles creating system documentation from inline comments in code files. Using the XML documentation file as base to generate documentation in different formats. As I'm kinda biased towards my own needs I'm starting from C#/ASP.NET => web output. Event Trivia: A Silverlight trivia application which can be played in between sessions at an event. It has been used at PDC09, PDC10 and MIX10 so far. Written by Pete Brown at Microsoft.F# MathProvider: F# Math Provider wrappers native Blas+Lapack runtimes for F# users to perform linear algebra easily. Frets Terminator: Frets TerminatorGurfing projects: Few summaryHexa.xText: Hexa.xText is a .Net command line tool to extract text from source files for later translation, just like the GNU xgettext does. Extracted text are placed inside po files that must be compiled into satellite assemblies through the included PO2Assembly MSBuild task.Hold Popup for Touch: Hold Popup offers an optional solution to get an event while having pressed a mouse button or have a touchdown over time. Instead of handling everything by yourself (such as timer for holding or handling events), hold popup handles all itself. Developed in .Net 4.0 for WPF.HumanResourceManagementSystem: Project NIIT MMS901 - Quater 5 Human Resource Management System People Management ModuleLive Messenger: Live Messenger is a Windows Live Messenger module for DNNMtechSystem: MultipointMouse Technology Education ChainNerdOnRails.ActiveQuery: an object-relational mapper for url-parameter written in .net for .netPHMS: Publishing House Management SystemRabbitEars: Thread safe event driven message notification for RabbitMQ using the .net API. Implmenet in vb.net project is a Visual Studio 2010 solution with two project the RabbitEars project and a demo windows form to allow users to test drive RabbitMQScreen Snapshot Manager: Screen Snapshot Manager is a desktop winforms application, which runs in background, and keeps taking snapshots of current screen after every 30 seconds for tracking purpose. :)SharePoint 2010 Workflow Actions IntelliSense: This project hosts a SharePoint 2010 Workflow Actions Schema file to assist developers in building Workflow Actions File for SharePoint Designer. Show Reader for MSDN Shows: Show Reader is a viewer for MSDN Shows based on .NET Framweork. In a single Window you can view your favorite shows with transcripts. Moreover, in the same window you can browse Microsoft web-sites where you can find Shows about .NET technologies, like the .NET Show, Channel9 and MSDN TV. ShowReader is available in two editions. A Windows Forms edition, written in Visual Basic 2005 and a Windows Presentation Foundation, written in Visual Basic 2008 It was developed by the Italian developer ...Subtitles Matcher: WPF application using prism and MEF automaticlly find and download subtitles for you media fileTweakSP2010: "Because SharePoint 2010 needs some Tweak'n" SharePoint Administration and Development extensions.TweetsSaver: ?????????zlibnet - c# zlib wrapper library: zlibnet - c# zlib wrapper library Features: -zip -unzip -compression/decompression stream -fast, since using the unmanaged zlib library -64bit support ZupSch: ZupSch is a little cms for student

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  • Modify headers in Pylons using Middleware

    - by Anders
    Hi all, I'm trying to modify a header using Middleware in Pylons to make my application RESTful, basically, if the user request "application/json" via GET that is what he get back. The question I have is, the variable headers is basically a long list. Looking something like this: [('Content-Type', 'text/html; charset=utf-8'), ('Pragma', 'no-cache'), ('Cache-Control', 'no-cache'), ('Content-Length','20'), ('Content-Encoding', 'gzip')] Now, I'm looking to just modify the value based on the request - but are these positions fixed? Will 'Content-Type' always be position headers[0][0]? Best Regards, Anders

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  • Calling a method from within a django model save() override

    - by Jonathan
    I'm overriding a django model save() method. Within the override I'm calling another method of the same class and instance which calculates one of the instance's fields based on other fields of the same instance. class MyClass(models.Model): field1 = models.FloatField() field2 = models.FloatField() field3 = models.FloatField() def calculateField1(self) self.field1 = self.field2 + self.field3 def save(self, *args, **kwargs): self.calculateField1() super(MyClass, self).save(*args, **kwargs) The override method is called when I change the model in admin. Alas I've discovered that within calculateField1() field2 and field3 have the values of the instance from before I edited them in admin. If I enter the instance again in admin and save again, only then field1 receives the correct value as field2 and field3 are already updated. Is this the correct behavior on django's side? If yes, then how can I use the new values within calculateField1? I cannot implement the calculation within the save() as calculateField1() actually quite long and I need it to be called from elsewhere.

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  • Alternatives to NServiceBus that doesn't use MSMQ

    - by G33kKahuna
    I think the title sums it all .... We have a .NET 2.0 system trying to implement a distributed pub/ sub model. I came across NServiceBus, RhinoBus and MassTransit. Unfortunately, these are MSMQ based. I am tasked to figure out pub/ sub alternatives that uses a different messaging alternatives ... the only reason for seeking MSMQ alternatives is to overcome the message size restriction. Since our enterprise app messages can potentially get truncated due to per message restriction... any guidance is much appreciated

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  • Which OOD approach should I take?

    - by Sorush Rabiee
    According to Niklaus Wirth, Algorithms + Data Structures = Programs. So I use this as a start point to object-oriented modeling and inheritance design: in a way that I separate the 'Objects' from 'Operations'. then look for patterns and inheritance hierarchy. But now after practice I guess it's not a good idea for every modeling problem, because sometimes it's not effective. (I mean there is no possibility of developing (or is very hard to develop) codes of Turing-Completed languages based on this paradigm.) What is your viewpoint for designing an OOD structure as an experienced programmer?

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  • Clustering [assessment] algorithm with distance matrix as an input

    - by Max
    Can anyone suggest some clustering algorithm which can work with distance matrix as an input? Or the algorithm which can assess the "goodness" of the clustering also based on the distance matrix? At this moment I'm using a modification of Kruskal's algorithm (http://en.wikipedia.org/wiki/Kruskal%27s_algorithm) to split data into two clusters. It has a problem though. When the data has no distinct clusters the algorithm will still create two clusters with one cluster containing one element and the other containing all the rest. In this case I would rather have one cluster containing all the elements and another one which is empty. Are there any algorithms which are capable of doing this type of clustering? Are there any algorithms which can estimate how well the clustering was done or even better how many clusters are there in the data? The algorithms should work only with distance(similarity) matrices as an input.

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  • as3 swc component preview through code

    - by David
    I am developing an as3 swc-based component that populates its contents entirely through actionscript in the constructor (e.g. sprite.graphics.lineTo...). When I drag the component onto the stage, it is empty. If I export my movie, everything works perfectly, but I also need the live preview to work. I could get around this with a placeholder graphic, but I would much rather leave it purely as code. Is there any way to get around this? Thanks, David.

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  • .NET WebService Custom Attribute

    - by DownChapel
    I would like to add a custom attribute to a asmx web service to determine if the request is valid based on the client IP address. This is a similar idea to the AuthorizeAttribute in ASP.NET MVC. Is there anywhere (e.g. a HTTP module) I can put the code to look at the attribute on the webservice and decide whether to allow the request or not? In my web.config the handler for asmx is the ScriptHandlerFactory from the System.Web.Extensions dll. I have already implemented the functionality with a HTTP module and a config file with a list of allowed URLs, but I would prefer to get rid of the config file and just add an attribute to the webservice class. Thanks

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  • database design in google app engine

    - by iamgopal
    hi , i am designing a simple project based to do list. the idea is to define tasks under project ( no workflow - just "task is completed" or not is required. ) in a hirarchial way. i.e. each task has multiple task and that task may have other multiple task. a project can be said to be completed if all task under that project are completed. , i tought of using refrenceproeperty to create hirarchy , but could not figure out easy way ( which do not take more than 30 seconds to find all the children of a project and check weather it is completed or not ) . to detect if project is complete or not. how to design database for such job ? and also , if i need to copy the project in order to define another project , how to copy hierarchical data ?

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  • Paypal subscription API - transaction variables not POSTed

    - by morpheous
    I am writing a payments system based around paypal, I am using the HTML 'API'. I am passing the following form fields to PayPal: 'rm' = 2 'return = http://www.example.com/payment-handler.php?token=sometoken Where 'token' is a token I generated. According to the paypal documentation, a return method (rm) of 2 indicates to Paypal that the transaction data be posted back to the callback url using the POST method. When processing items using 'buy_now' buttons, the transaction items are correctly POSTed to my callback url (payment-handler.php), but for 'subscribe' operations, although the callback url is called, no POST data is sent to the url, and also, the 'token' field is missing. Instead, there is a parameter called 'auth'. I cant see anything in the paypal docs about a 'auth' field - so I dont know whats generating it and if I can reliably using it. Can anyone shed some light on this?

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  • Rotating text in postscript

    - by Mrgreen
    I have the following postscript code: /outputtext { /data exch def /rot exch def /xfont exch def /Times-Roman findfont xfont scalefont setfont /y1 exch def /x1 exch def x1 y1 moveto rot rotate data show } def % x y fontsize rotation (text) outputtext 20 300 12 0 (text1) outputtext 20 400 12 90 (text2) outputtext 20 500 12 90 (text3) outputtext 20 600 12 0 (text4) outputtext showpage The function simply outputs text based on a x, y co-ords and the text to display, there is also a variable for rotation. For some reason when I output text with a rotation of 0 degrees, all other text that comes after that will not work, I can't seem to figure out why this is the case. In the example above, 'text1' and 'text2' will display, but not 3 and 4.

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  • Frustrated with Objective-c code...

    - by Moshe
    Well, I've started with iPod/iPhone programming using Head First iPhone Development (O'reilly) and I'm typing code out of the book. There are two problems, one is programming related and the other is not. I don't understand the format of objective-c methods. I'm getting an few errors now, based on source code from the book. Which leads me to my next issue. Some of the code is buggy. I think so because I couldn't get the code to run without modifying it. The book has some typos in the text since it's a first edition and whatnot, but could my "fixing" the code have to do with it? So... Where can I learn more about objective-c methods and how they work in terms of structure and where the return type and arguments go? For those with the book, I'm in the middle of the InstaTweet app towards the beginning. Thanks.

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