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• How do you invoke a web service from another web service using php?

  - by hello nottellingmyname

  So, I'm new to web programming, and for my homework I have to write some web services using PHP. Some of the web services have to use other web services, though, and we didn't learn how to do that. My professor said we should look up how to do that online. I think to call a web service using a GET parameter I just need to do file_get_contents(url), but I have no idea how to make a web service call using POST. So, how do I make a web service call from a web service using POST?

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• double fork using vfork

  - by Oren S

  HI I am writing a part of a server which should dispatch some other child processes. Because I want to wait on some of the processes, and dispatch others without waiting for completion, I use double fork for the second kind of processes (thus avoiding the zombie processes). Problem is, my server holds a lot of memory, so forking takes a long time (even the copy-on-write fork used in Linux which copies only the paging tables) I want to replace the fork() with vfork(), and it's easy for the second fork (as it only calls execve() in the child), but I couldn't find any way I can replace the first one. Does anyone know how I can do that? Thanks! The server is a linux (RH5U4), written in C++.

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• Django equivalent to paster for backend processes

  - by intractelicious

  I use pylons in my job, but I'm new to django. I'm making an rss filtering application, and so I'd like to have two backend processes that run on a schedule: one to crawl rss feeds for each user, and another to determine relevance of individual posts relative to users' past preferences. In pylons, I'd just write paster commands to update the db with that data. Is there an equivalent in django? EG is there a way to run the equivalent of python manage.py shell in a non-interactive mode?

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• setNeedsDisplayInRect: paints a white rectangle only

  - by Ion Tichy

  Hi, I'm still a little fresh to CoreGraphics programming, so please bear with me. I'm trying to write an application, which allows the user to rub stuff off an image with the finger. I have the basic functionality nailed down, but the result is sluggish since the screen is redrawn completely every time a touch is rendered. I did some research and found out that I can refresh only a portion of the screen using UIView's setNeedsDisplayInRect: method. This does call drawRect: as expected, however everything I draw in the drawRect: following the setNeedsDisplayInRect: is ignored. Instead, the area in the rect parameter is simply filled with white. No matter what I draw inside, all I end up with is a white rectangle. In essence, this is what I do: 1) when user touches screen, this touch is rendered into a mask 2) when the drawRect: is called, the image is masked with that mask There must be something simple I'm overlooking, surely?

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• Javascript Grid that can handle sections in a table

  - by user335410

  I am making an ASP.NET MVC application that lets a user design a questionnaire that other users can fill out. Now, questionnaires, rather than just having a list of questions, often have sections or subsections that could have headings and not the other columns that an ordinary row (a question) would have. I want a JS Grid that can handle sections and subsections elegantly. I tried using JQGrid, but there the options I have are limited to a "Grid as Subgrid" structure. The appearance becomes quite complex and unlike a questionnaire. Is there a Javascript Grid or a JQuery plugin that can handle this? I can write my own HTML table as long as the JS app will format the table and will add some user-friendliness to the table.

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• Loading dictionary for input method suggestion list

  - by jpspringall

  Hi, For various reasons, i'm trying to write my own input keyboard. So far all is going well except that of creating the suggestions. I've found the latinIME algorithm, which is all good. However i'm having major difficulty working out how to load the dictionary in the first place. I've had a good look round the net, and found various suggestions, but no definitive answers, and i cant seem to get any of them to work. If anyone has any suggestions on how best to do it, or even better some sample code, that would be brilliant. Many Thanks James

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• C++: Best text accumulator

  - by MInner

  Text gets accumulates piecemeal before being sent to client. Now we use own class that allocates memory for each piece as char massive. (Anyway, works like char[][] + std::list<char*>). Then we build the whole string, convert it into std::sting and then create boost::asio::streambuf using it. That's slow enough, I assume. Correct me if I'm wrong. I know, in many cases simple FILE type from stdio.h is used. How does it works? Allocates memory at every write into it. So, is it faster and is there any way to read into boost::asio::streambuf from FILE?

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• Updating a session variable on a page that uses enablesessionstate=readonly attribute doesn't fail f

  - by chandmk

  Asp.Net allows you you set the session state to readonly at individual page level or in the web.config for all pages. But it doesn't prevent you from creating a brand new session variable on that page or modify an existing session variable. But when you try to use that session variable it is either not available or its value is not modified. Why wouldn't the asp.net framework throw a run time error, if not compile time error, when a write attempt is made to a session on the pages where that is not allowed?

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• Rails STI validation inheritance

  - by KARASZI István

  Dear Rails users! I have STI models in my Rails application. The ancestor model has validations with the validates_... methods which are working fine. But I have custom validations as well, and I would like to add more different custom validations in the descendants. These custom validations would depend on the class. If I write class DescendantA < Ancestor protected def validate # ... end end It simply overwrites the original validations. Is there a convention to do this in Rails?

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• Is there a free private Git repository?

  - by saturngod

  Currently I use http://www.codaset.com/ for a private repository. It's free but it can't be free forever. Codaset is nice git repo and we can write blog and wiki entries in there. I want to use a private repo for my private project. This isn't a commercial project or a big project. I also found http://www.projectlocker.com but the user interface is so poor. So, I want to use something like codaset or github repo, for free at least 1 user and 100 MB git repo.

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• How do I get this div tag using selenium webdriver?

  - by user1603518

  <div id="ctl00_ContentHolder_vs_ValidationSummary" class="errorblock"> <p><strong>The following errors were found:</strong></p> <ul><input type="hidden" Name="SummaryErrorCmsIds" Value="E024|E012|E014" /> <li>Please select a title.</li> <li>Please key in your first name.</li> <li>Please key in your last name.</li> </ul> </div> I want to capture the text having value of E024 E012 and E014 and write it in to an Excel file. I tried the following but it doesn't work. string val1 = driver.FindElement(By.XPath("//div[contains(@class, 'errorblock'/ value = 'E024|E012|E014'")).Text; How can I do this?

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• Is there a way to reduce the verbosity of using String.Format(...., p1, p2, p3)?

  - by Edward Tanguay

  I often use String.Format() because it makes the building of strings more readable and manageable. Is there anyway to reduce its syntactical verbosity, e.g. with an extension method, etc.? Logger.LogEntry(String.Format("text '{0}' registered", pair.IdCode)); public static void LogEntry(string message) { ... } e.g. I would like to use all my and other methods that receive a string the way I use Console.Write(), e.g.: Logger.LogEntry("text '{0}' registered", pair.IdCode);

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• Sometimes, scaling down a bitmap generates a bigger file. Why?

  - by Matías

  Hello, I'm trying to write a method to reduce the size of any image 50% each time is called but I've found a problem. Sometimes, I end up with a bigger filesize while the image is really just half of what it was. I'm taking care of DPI and PixelFormat. What else am I missing? Thank you for your time. public Bitmap ResizeBitmap(Bitmap origBitmap, int nWidth, int nHeight) { Bitmap newBitmap = new Bitmap(nWidth, nHeight, origBitmap.PixelFormat); newBitmap.SetResolution(origBitmap.HorizontalResolution, origBitmap.VerticalResolution); using (Graphics g = Graphics.FromImage((Image)newBitmap)) { g.InterpolationMode = InterpolationMode.HighQualityBicubic; g.DrawImage(origBitmap, 0, 0, nWidth, nHeight); } return newBitmap; }

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• controling individual pins on a serial port

  - by Faken

  I know that serial ports work by sending a single stream of bits in serial. I can write programs to send and receive data from that one pin. However, there are a lot more other pins on the serial port connection that normal aren't used but from documentation all seem to have some sort of function for signalling as opposed to data transfer. Is it possible in any way to cause the other pins that are not used for direct data transfer to be controlled individual? If so, how would i go about doing that?

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• Saving XML in UTF-8 with MSXML

  - by stung

  I'm trying to load a simple Xml file (encoded in UTF-8): <?xml version="1.0" encoding="UTF-8"?> <Test/> And save it with MSXML in vbscript: Set xmlDoc = CreateObject("MSXML2.DOMDocument.6.0") xmlDoc.Load("C:\test.xml") xmlDoc.Save "C:\test.xml" The problem is, MSXML saves file in ANSI instead of UTF-8 (despite the original file being encoded in UTF-8). The MSDN docs for MSXML says that save() will write the file in whatever encoding the XML is defined in but this is clearly not working at least on my machine. How can MSXML save in UTF-8?

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• Why should I use MVVM when it breaks built in functionality

  - by Jakob

  I'm struggling to grasp why MVVM is really a good pattern to implement in riaserivces, To me there's nothing but trouble to it, it just add's another tier that I have to code. I Get that I could change the UI, but really I don't need to. Instead i won't be able to user out of the box functionality with riaservices, datagrid, dataform all controls require some implementation. Why can't it just be simple? Is there really no way to get MVVM to automatically set "IsBusy" and all the dataform edit functionality. It's like reinventing the wheel to me, and it seems that I'd be able to write code much faster just using riaservices

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• How do we name test methods where we are checking for more than one condition?

  - by Sandbox

  I follow the technique specified in Roy Osherove's The Art Of Unit Testing book while naming test methods - MethodName_Scenario_Expectation. It suits perfectly well for my 'unit' tests. But,for tests that I write in 'controller' or 'coordinator' class, there isn't necessarily a method which I want to test. For these tests, I generate multiple conditions which make up one scenario and then I verify the expectation. For example, I may set some properties on different instances, generate an event and then verify that my expectation from controller/coordinator is being met. Now, my controller handles events using a private event handler. Here my scenario is that, I set some properties, say 3 condition1,condition2 and condition3 Also, my scenario includes an event is raised I don't have a method name as my event handler is private. How do I name such a test method?

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• How can I access the value of a checkbox without a postback?

  - by Starwfanatic

  I have a radgrid controlling access to an application for users. There are two columns, a 'name' column and a checkbox 'access' column representing their current access permission. the checkboxes are populated from a database. I would like the to change the checkboxes to grant or deny access to the users I specify. Since there are alot of users I would like to make multiple changes and use a submit button to write the changes to the database. I do not want to postback with each checkbox change and wait for the page to "blink". My problem is that with the checkbox postback disabled, when I click submit, the value of the checkboxes are not registering the changes I make. I need a way to access the current client-side state of the checkbox or some workaround to accomplish this. Thanks in advance!

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• I need help in animation of realistic page movement of pdf. just like code-flakes.com

  - by srnm12

  hi guys, i have to move the page of pdf in realistic way as you can see in code-flakes.com code-flakes have commercial api's but i want to write my own one. I got something that we can achieve this by using flash. flash will provide animation of realistic page movement. i don't know anymore guys.. Let me know how to this can be done? if you source send me on my id mohit.movil at gmail dot com any help will be great appreciate for me.. thnks

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• Access Codeigniter database functions from file

  - by Manny Calavera

  Hello. I am using a SWFupload script and I can't make a request from flash with mod_rewrite, I don't know why... I just need to point the Flash request to that file directly. This file runs an upload script that works ok but now I need to save some info to the database and I would like to know what should I write to have access from that file that is not called from the controller and does not extend the model in order to run a mysql query. Thanks.

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• Problem saving excel file after inserting data

  - by Cmptrb

  Hi, I want to write data to an existing excel file ( I do it easily ) But I can not save the changes on the excel file ( actually I see the changes on the excel file, but it seems opened and after all it occurs some problems such as "the file is already opened with same name and so on ... ) Excel.Application app= new Microsoft.Office.Interop.Excel.Application(); Excel.Workbook appbook= app.Workbooks.Open(appxls, 0, true, 5, "", "", false, Excel.XlPlatform.xlWindows, "\t", true, false, 0, true, Missing.Value, Missing.Value); Excel.Sheets pages= appbook.Worksheets; Excel.Worksheet page= (Excel.Worksheet)pages.get_Item(1); //... i change some values on the excel file and want to save them : // appxls is a string holding the path appbook.SaveAs(appxls, Excel.XlFileFormat.xlWorkbookNormal, Type.Missing, Type.Missing,false, Type.Missing, Excel.XlSaveAsAccessMode.xlShared, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); appbook.Close(true, Missing.Value, Missing.Value); app.Quit(); Where is the problem, how can I solve it using Microsoft.interop.

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• Silverlight 3 and System.ServiceProcess - Doesn't allow the reference to be added.

  - by Brad8118

  I'm trying to write a program that can stop and start services using SilverLight 3 and VS2010. I can't add the reference to the System.ServiceProcess dll. C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.ServiceProcess.dll 1st why? - It it just a security precaution? 2- Is there a work around? Does SilverLight have a different library that I can use to start and stop services. Also note that this is a desktop application and not a web app. It will be sitting on my desktop to toggle services on and off.

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• How to print an isosceles triangle

  - by Steve

  Hello, I'm trying to learn programming by myself, I'm working from a book that has the following problem which I can't solve: Allow the user to input two values: a character to be used for printing an isosceles triangle and the size of the peak for the triangle. For example, if the user inputs # for the character and 6 for the peak, you should produce the following display: # ## ### #### ##### ###### ##### #### ### ## # This is the code I've got so far: char character; int peak; InputValues(out character, out peak); for (int row = 1; row < peak * 2; row++) { for (int col = 1; col <= row; col++) { Console.Write(character); } Console.WriteLine(); } Console.Read() // hold console open Thanks in advance.

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• Razor support of generic extension methods

  - by Brian

  Hello, With regards to the Razor view engine, say I want to render Html.TextBoxFor<SomeModel>(i => i.Name), it doesn't seem that the inline syntax works as in: @Html.TextBoxFor<SomeModel>(i => i.Name) This doesn't seem to work because it interprets the generic as an HTML tag. I could use a code-block approach, but then what's the best approach to output the content? The HTML string returned from this method, do I response.write it, or is there a syntax for it, or what's the approach? Thanks.

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• Writing iPhone apps on linux - What tools do you need

  - by Sia.G

  Hello. I wanted to know if it's possible to WRITE and COMPILE/TEST iPhone apps on a linux platform. I've been on google for a couple of days now, and people either talk about "Mac OS X only!", or "Develop jailbroke apps on Linux". My dev partner has a mac and has a certificate to sign the apps. I don't have a mac, but I will be doing most of the development. So what I want to do is simply develop/test the app in linux, and when it's finished, simply hand over the code to him, who will then compile the finalized app and sign it ready for submission to the app store. Could anyone tell me what linux tools I would need to accomplish this?

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