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• Google checkout - Order processing notification handler

  - by Kunal

  Hi I need to integrate google checkout on my website. I have successfully implemented the order placing and others stuff and using the sandbox I have tested that users can successfully add items to cart and and pay thereafter. I am using my own customized shopping cart written in php mysql. The last thing I need to do is pass the new order id to google checkout and receive notifications with the new order id as well as other data google sends. I know I have to setup a path to the handler script in my accounts. I did it in my sandbox account as well. But can't find a simple pice of code to get it done. Even if I use sample code from google, just cant figure out the format of the returned data in new order notification and also how to send custom data to the cart, which would come back with new order notifications? I am just lost on this. Please help!

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• Recursive CTE with alternating tables

  - by SOfanatic

  I've created a SQL fiddle here. Basically, I have 3 tables BaseTable, Files, and a LinkingTable. The Files table has 3 columns: PK, BaseTableId, RecursiveId (ChildId). What I want to do is find all the children given a BaseTableId (i.e., ParentId). The tricky part is that the way the children are found works like this: Take ParentId 1 and use that to look up a FileId in the Files table, then use that FileId to look for a ChildId in the LinkingTable, if that record exists then use the RecursiveId in the LinkingTable to look for the next FileId in the Files table and so on. This is my CTE so far: with CTE as ( select lt.FileId, lt.RecursiveId, 0 as [level], bt.BaseTableId from BaseTable bt join Files f on bt.BaseTableId = f.BaseTableId join LinkingTable lt on f.FileId = lt.FileId where bt.BaseTableId = @Id UNION ALL select rlt.FileId, rlt.RecursiveId, [level] + 1 as [level], CTE.BaseTableId from CTE --??? and this is where I get lost ... ) A correct output for BaseTableId = 1, should be: FileId|RecursiveId|level|BaseTableId 1 1 0 1 3 2 1 1 4 3 2 1

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• .Net Round-trip Types

  - by Fujiy

  I making a method that generate a unique string key for some parameters. But the same key if call with same values. I just accept primitive types, string, DateTime, Guid, and Nullable(since I append types together, I can distinguish who is int and who is int?), because I can convert all to string without lost values or precision.(for float and double a use ToString("R"), to DateTime ToString("O")). Exists a easy way to know which types I can transform in strings without conflict? And how do this transform(how I said before, float, double and datetime have specific ways) Thanks

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• Visual Studio 2010 Database Project does not understand Schema Names anymore?

  - by Xenan

  I just tried to upgrade a Visual Studio 2008 Database project to VS2010 and actually it is quite a mess. Hundreds of warnings, all unsolved references. It seems to boil down to Visual Studio not to understand Schema Names (aka Ownership) anymore. For example, the standard dbo schema: [$(MyDataBase)].dbo.MyTable is fine but: [$(MyDataBase)].myschema.MyTable gives an unsolved reference. It did work in VS2008. Also the abbreviation for dbo, the double dot: [$(MyDataBase)]..MyTable Doesn't work anymore. In the project property windows I restored the references to the correct servers (which were lost after the conversion) but that didn't help. This seems pretty basic but I don't have a clue how to solve this. Any help is appreciated.

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• Warn user when new data is inserted on database

  - by João Menighin

  I don't know how to search about this so I'm kinda lost (the two topics I saw here were closed). I have a news website and I want to warn the user when a new data is inserted on the database. I want to do that like here on StackOverflow where we are warned without reloading the page or like in facebook where you are warned about new messages/notifications without reloading. Which is the best way to do that? Is it some kind of listener with a timeout that is constantly checking the database? It doesn't sounds efficient... Thanks in advance.

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• java.lang.NoClassDefFoundError when the file is there

  - by tsOverflow

  I've tried to look around for postings that might help me, cant find any. I am deploying an ear to JBoss4 server, and I started having this problem since I added a new project. this new project is defined as Java project in eclipse, and the EAR project has an EJB project that has the new Java project as one of the projects as its dependent upon - if deployed on JBoss locally through eclipse, there's no problem and everything goes smoothly But when being deployed to JBoss in test environment (outside eclipse), kept getting java.lang.NoClassDefFoundError on one of the classes that are defined in the new Java project. I looked inside the EAR file to get to the jar (EJB project), and then inside the jar, I can see the directory structure and all the class files from the new Java project - ie. The class that it complains about is right there inside the EAR-JAR and matching the exact structure that it's looking for. I am at lost to what else I can look at. Any pointers are greatly appreciated! Thanks

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• What's the deal with char.GetNumericValue?

  - by mgroves

  I was working on Project Euler 40, and was a bit bothered that there was no int.Parse(char). Not a big deal, but I did some asking around and someone suggested char.GetNumericValue. GetNumericValue seems like a very odd method to me: Takes in a char as a parameter and returns...a double? Returns -1.0 if the char is not '0' through '9' So what's the reasoning behind this method, and what purpose does returning a double serve? I even fired up Reflector and looked at InternalGetNumericValue, but it's just like watching Lost: every answer just leads to another question.

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• SHFileOperation FO_MOVE deletes a file if the destination drive is full

  - by Shailesh Kumar

  I had a piece of code which uses windows SHFileOperation function with FO_MOVE operation. Additional flags specified were FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT. A particular weird behavior was observed when the destination drive was full. In this case, MOVE could not place the file in destination folder but the source file was also lost. This was highly unexpected and this caused a loss of data. Is this the standard behavior of SHFileOperation? Can we have something like MOVE if the destination drive has space otherwise leave the file at the original place?

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• Filling in a form client-side [Javascript]

  - by Hawker

  I'm coding up a small Vista/7 sidebar gadget for our web based employee schedule system and I've run into a Javascript problem that my Google-FU can't solve. I can't figure out how to fill in a login form from the client. I'm creating a new ActiveXObject, navigating to the site, but lost as to where to go from here. var conn = new ActiveXObject("Microsoft.XMLHTTP"); conn.open("POST", "url", false); conn.send(null); Can access the form from the ActiveXObject based on the form id? I'd also assume I'm going to need to change a few headers for a POST vs. a GET? Thanks for any tips or links to references! I can't seem to find much and JavaScript isn't my forte.

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• Making a video with opencv and ffmpeg. How to find the right color format?

  - by luc

  I have a webcam video recorder program built with python, opencv and ffmpeg It works ok except that the color of the video is more blue than the reality. The problem seems to come from color format of images. It seems that OpenCv is giving BGR images and ffmpeg+libx264 is expecting YUV420p. I've read that YUV420p correspond to YCbCr. opencv has no conversion from BGR to YCbCr. It only has a conversion to YCrCb. I have made some searchs and tried different alternatives to try converting opencv image to something that could be ok for ffmpeg+libx264. None is working. At this point, I am a bit lost and I would appreciate any pointer that could help me to fix this color issue.

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• How can you setup multiple WSGI apps on one server?

  - by Shakakai

  I'm working on a python based server product where a user can install WSGI-based python apps on their server. I can enforce any restriction on the application structure or format to make this easy. The user workflow would be: browse an app market, showing a list of WSGIpython apps select an app and choose "install" the app would be downloaded from a remote server to the user's server the http server would then have to be configured to start serving that application from the app's id, ex. a blog app with an id of "blog" at "/blog/", so all requests below /blog/ would be seen as root by the blog application. Any suggestions on how to set something like this up? Holler if my flow of consciousness lost you ;)

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• Web Application - Authentication / Login Framework

  - by user456563

  This is a very simple, probably a most asked question and frequently developed as part of any web application. Say I'm planning to build a web application and some of the functional requirements include (apart from the usual hard hitting security reqs), - Need to have users sign up for a new account profile - Authenticate user using the native app authentication / Facebook or Google or Yahoo or OpenId login - Allow lost password retrieval - Session handling needs Is there an out of the box frameworks (Drupal, Liferay??) that I can use to wrap my application which can be a bunch of JSP's or HTML's with JS? I know I'm asking a very simple and maybe a naive question. But this is a topic every web developer guru will go thru. Any help, advise and pointers much appreciated.

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• Xcode/Interface Builder Mac App Development

  - by user1459546

  Well i want from the drop down menu(Menu Item List) one item to be working as an link, to open an url/website in safari - thats it. When this is so simple, why no one come up with a clue here - I tried many different ways in Xcode, with Apple Xcode Samples... i think i need an AppDelegate.m, drag or link some parts, get actions... i failed to get it going somewhere - now i'm lost. Any advice/help/link/tip would be much appreciate to solve this "simple" issue... Using Xcode/Interface Builder 3.2.6 - Please help or i go totally mad, insane and i will crash my f...ing mac right now - Thanks

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• Merging Brach into Trunk...

  - by jimbo

  Now I know this has been asked a few times, but i'm still not getting it... I use Versions which is doing a great job, I am also using beansalk and they are working nicely together. However, I have been working on a branch of the trunk (sandbox) which I now want to merge back into the trunk. Versions can't do this, so it's into Terminal. Sandbox is reversion 256 and the Trunk (because of a few other amends) is 255. Any help on this would be great, and read a few bits, but still a little lost...

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• Redirect to prevent dup submission...but then you loose existing data

  - by coffeeaddict

  Here's the scenario User is on your checkout.aspx page Somewhere in the process, when clicking the pay button, you redirect the user to an intermediate page (before the confirmation page) to do some other logic. That intermediate page performs whatever logic based on a querystring flag you sent with the redirect from the checkout page This intermediate page also serves as an error page. So if any logic in the intermediatePage.aspx.cs fails I'm setting a message to be displayed on this page to the user If I refresh, that querystring value is still in the url..hence when it hits my Page_Load again, then the server-side logic is called & run again and I don't want this to happen The avoid this behavior/problem, the logical next step is to do a redirect back to the same page if they refresh (not sure how you'd catch that) to get rid of that querystring But when you redirect back to the same page your error message is gone, lost in the redirect therefore you end up showing them the same page but all values for the error message are now gone I do not want to solve this with Javascript either. I am not sure the best way to handle this.

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• Javascript clone form?

  - by user202987

  I need to copy a form information with all types of elements and send it with AJAX. Tried these: 1. cloneNode on the form. - Doesn't work with IE, only copies text stuff properly. cloneNode on each element. Doesn't work with IE, only copies text stuff properly. Making new textareas for each element, and copying the value in. Doesn't work for textareas in IE, formatting is lost. I imagine a combination of those 3 would work for IE and FF but is there any decent solution to this? Shortness of code is a priority.

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• Vector of objects

  - by Paul

  I've got a abstract class class A { public: virtual void somefunction() = ; }; and some different classes that inherit this class: class Ab { public: void somefunction(); }; etc. I want to make a vector containing some objects of these classes (how many depends on input parameters) so I can access these easily later. However I'm a bit lost on how to do this. My best idea is vector<A> *objectsVector; Ab AbObject; objectsVector.push_back(AbObject); However this gives me a huge amout of errors from various .h files in /usr/include/c++ How should i solve this?

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• Using memcached/APC for session storage?

  - by Industrial

  Hi everybody, I had some thoughts back ago about using memcached for session storage, but came to the conclusion that it wouldn't be sufficient in the event of one or more of the servers in the memcached pool were about to go down. A hybrid version is to save the main database (mySQL) from load caused by reads would be to work out a function that tries to fetch the data from the cache pool, and if that fails gets it from the database. After putting some more thought into it, I started to think about using APC cache for session related data. If our web server would go down, sessions would be lost either way, so storing them in a local APC or a localhost memcached server maybe isn't that bad? What's your experiences?

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• symfony and entity manager

  - by Jenis Sam

  I want to do the following I have a database table of students, and I want to output each student name in a check box list. so checkbox. Student 1 checkbox. Student 2 Where the value of the checkbox is the student's ID. How can I do that using Symfony? I want teachers to be able to select one or more checkboxes. I tried following this tutorial: http://symfony.com/doc/current/cookbook/form/form_collections.html and using collections, but I am lost...

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• Server RAID 5 failed...all I have left is my compiled website

  - by David Murdoch

  Yesterday, 2 of the 3 drives in my dev server's RAID 5 decided to die on me (with no warning). I've come to grips with the fact that my data is most likely lost unless I shell out some major bucks for professional data-resortoration. People, don't be an idiot like me and treat your RAID as a data backup! Luckily I published the site about 4 hours before my files went bye-bye. Is there any way to run some [magical] program to restore my compiled site to their original files? Also: I develop on one machine with the files stored on the server...is there some visual studio 2010 web cache on my local machine (the one that didn't crash) that I may be able to use?

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• Add my own RSS reader app on a http://feeds2.feedburner.com/exampleofname "subscribe feed using" lis

  - by user333647

  Hello everyone, I'm doing a RSS reader for a University Project. The feed urls have to be added by hand tipically with the copy/paste method, and I don't like this option because is poor for the users. My question is: can I do like in webpage http://feeds2.feedburner.com/microsiervos a list of web applications (Google Reader, Netvibes, etc.). There is a way to do so? I may have to create a firefox addon? I'm quite lost, I think... Thank you very very much, and sorry for my bad english but in this F***ing country that is Spain, there are lots of FIESTA and what you want but null english education... hehehe Byeeee!

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• How to ensure project management questions get answered

  - by Chuck Vose

  Background: On a new project I've found myself 3 levels removed from my actual source of information. I report to my PM, who reports to our contractor, who reports to the actual client. Getting answers to questions has become something of a problem and I'm curious to know what people recommend. Needs: I'm trying to find a technology or disciplined strategy that will assist me in ensuring that the questions I'm asking are getting answered: Correctly without much modification of the original question Quickly so the original context isn't lost Completely so that if a question is deferred I don't forget about it. Does anyone know of a software suite that assists in this matter or do you have any personal discipline strategies that worked for you? Thank you for the guidance

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• How to determine the radius and center of a circle when only three noncollinear points are known?

  - by Bob

  I'm working on a C# program that deals with Oracle Spatial geometry. When circle data is stored in a geometry field only three non-collinear points are stored to represent the circle. The problem is that I need to use this data on a Google Maps web page and need the center point and radius of the circle (since my circle drawing function uses that information). Can anyone help with the math involved and translating said math to C#? I think this page may hold the answer, but I'm having a hard time following it. There are formulas for radius and center given three points, but then they define the variables as matrices and I get lost at that point. How would I solve that in code?

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• Problem about C++ class (inheritance, variables scope and functions)

  - by Luigi Giaccari

  I have a class that contains some data: class DATA Now I would to create some functions that uses those data. I can do it easily by writing member functions like DATA::usedata(); Since there are hundreds of functions, I would to keep an order in my code, so I would like to have some "categories" (not sure of the correct name) like: DATA data; data.memory.free(); data.memory.allocate(); data.file.import(); data.whatever.foo(); where memory, file and whatever are the "categories" and free, allocate and foo are the functions. I tried the inheritance way, but I got lost since I can not declare inside DATA a memory or file object, error C2079 occurs: http://msdn.microsoft.com/en-us/library/9ekhdcxs%28VS.80%29.aspx Since I am not a programmer please don't be too complicated and if you have an easier way I am all ears.

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• Wpf button click when application window is not active

  - by byte

  I have a WPF application window with a button (ButtonA) which has a command binding to a View Model property. When another application is launched the focus is lost and application window is deactivated. Clicking ButtonA now doesn’t execute the command but instead only activates the window and sets the focus to the button. 2nd click is required to fire the command. The desired functionality is on click of ButtonA while the application window is not active, the application window activates and command associated with ButtonA is executed. I have also tried removing the command and adding a click handler for test purpose but this displays same behaviour. I appreciate any help with this issue.

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