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• singleton factory connection pdo

  - by Scarface

  Hey guys I am having a lot of trouble trying to understand this and I was just wondering if someone could help me with some questions. I found some code that is supposed to create a connection with pdo. The problem I was having was having my connection defined within functions. Someone suggested globals but then pointed to a 'better' solution http://stackoverflow.com/questions/130878/global-or-singleton-for-database-connection. My questions with this code are. PS I cannot format this code on this page so see the link if you cannot read What is the point of the connection factory? What goes inside new ConnectionFactory(...) When the connection is defined $db = new PDO(...); why is there no try or catch (I use those for error handling)? Does this then mean I have to use try and catch for every subsequent query? class ConnectionFactory { private static $factory; public static function getFactory() { if (!self::$factory) self::$factory = new ConnectionFactory(...); return self::$factory; } private $db; public function getConnection() { if (!$db) $db = new PDO(...); return $db; } } function getSomething() { $conn = ConnectionFactory::getFactory()-getConnection(); . . . }

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• GUI toolkit for Unicode text app?

  - by wrp

  In developing a tool for processing text in exotic scripts, I'm having trouble choosing a GUI toolkit. The main part of the interface is to be a text editor, not much more elaborate than Notepad, but with its own input method editor. It is to be extensible in a scripting language so that non-programmers can develop their own input methods and display routines. It will be assumed that all files are UTF-8. More elaborate support like regexes is not needed. The main sticking points are: characters beyond the Basic Multilingual Plane right-to-left and bi-directional text extension in a scripting language cross-platform Linux/Windows/OS X My first choice was Tcl/Tk, but it lacks bidi and going beyond the BMP seems dodgy. At the other extreme, I've considered Qt with embedded ECMAScript, but that might be heavier and less malleable than I would like. I'm even thinking about making it browser based, but I'm concerned that the IM for large scripts would be too heavy for client-side processing. I've also looked at a few similar projects in Java, but the quality of the font rendering in SWING has been unacceptable. What are your experiences in handling Unicode with various toolkits? Are there other serious issues I haven't considered? What would you recommend for doing this in the lightest way?

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• export and import utf8 data in mysql: best practices

  - by ChrisRamakers

  We're often faced with the need to send a data file to one of our clients with data from the database he/she needs to translate. Most of the time this export is CSV or XLS. Most of the time we create a csv dump with phpmyadmin and get an xls file in return with the translated data. The problem is that most of the time the data is UTF8 and when the file is returned as xls each and every time we load the data into mysql again we end up with utf8 problems, characters not being displayed properly, etc ... We've already doublechecked everything in mysql from my.conf to column charactersets and everything is set correctly to UTF8. My question is not how to fix the encoding issue since that's been solved but how we would best proceed in the future handling this situation? What export format should we hand over? How should we import (just mysql load data infile or our own processing scripts). What is the general consensus on how to handle this situation? We would like to continue using excel if possible since that's the format almost everybody expects including our clients' translation agencies. Our clients' ease of use is the most important factor here, without overloading us with major issues each time. The best of both worlds :)

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• How to draw an unfilled square on top of a stream video using a mouse and track the object enclosed

  - by Haxed

  Hi, I am making an object tracking application. I have used Emgucv 2.1.0.0 to load a video file to a picturebox. I have also taken the video stream from a web camera. Now, I want to draw an unfilled square on the video stream using a mouse and then track the object enclosed by the unfilled square as the video continues to stream. This is what people have suggested so far:- (1) .NET Video overlay drawing(DirectX) - but this is for C++ users, the suggester said that there are .NET wrappers, but I had a hard time finding any. (2) DxLogo sample DxLogo – A sample application showing how to superimpose a logo on a data stream. It uses a capture device for the video source, and outputs the result to a file. Sadly, this does not use a mouse. (3) GDI+ and mouse handling - this area I do not have a clue. And for tracking the object in the square, I would appreciate if someone give me some research paper links to read. Any help as to using the mouse to draw on a video is greatly appreciated. Thank you for taking the time to read this. Many Thanks

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• How do you read a file line by line in your language of choice?

  - by Jon Ericson

  I got inspired to try out Haskell again based on a recent answer. My big block is that reading a file line by line (a task made simple in languages such as Perl) seems complicated in a functional language. How do you read a file line by line in your favorite language? So that we are comparing apples to other types of apples, please write a program that numbers the lines of the input file. So if your input is: Line the first. Next line. End of communication. The output would look like: 1 Line the first. 2 Next line. 3 End of communication. I will post my Haskell program as an example. Ken commented that this question does not specify how errors should be handled. I'm not overly concerned about it because: Most answers did the obvious thing and read from stdin and wrote to stdout. The nice thing is that it puts the onus on the user to redirect those streams the way they want. So if stdin is redirected from a non-existent file, the shell will take care of reporting the error, for instance. The question is more aimed at how a language does IO than how it handles exceptions. But if necessary error handling is missing in an answer, feel free to either edit the code to fix it or make a note in the comments.

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• iPad: Detecting External Keyboard

  - by StuartW

  My app uses a UIAccessoryView to provide additional keyboard functionality (such as forward/backward tabs and arrows keys) for the virtual keyboard, but that causes UIKeyboardDidShowNotification to fire even when a physical keyboard is present (the accessory appears at the bottom of the screen). I'd like to check if a physical keyboard is attached when handling UIKeyboardWillShowNotification, to prevent the accessory view from appearing and to prevent my custom view from scrolling up (to make room for the non-existent virtual keyboard). I've tried examining the UIKeyboardFrameEndUserInfoKey key, but it returns a real size for the virtual keyboard, in spite of nothing being displayed. Is there any way to detect the presence of a physical keyboard to prevent this unwanted behaviour? Hmm, the plot thickens. I tried disabling the input accessory by returning nil from the inputAccessoryView property of the Responder object which triggers the keyboard. That suppresses UIKeyboardWillShowNotification and UIKeyboardDidShowNotification when there is a physical keyboard present, but keeps these notifications when there is no such keyboard. All good so far. Then I tried re-enabling inputAccessoryView only after UIKeyboardWillShowNotification had been received. This only fires when a virtual keyboard is needed, so it should allow me to reintroduce the accessory view in those circumstances. Or so I thought. Unfortunately, it seems the OS doesn't check inputAccessoryView after UIKeyboardWillShowNotification, so it fails to show the accessory view when it is needed :o( That leaves me with two options: Include the input accessory view, giving extra functionality for virtual keyboard users, but lose the ability to detect a physical keyboard and hence not supporting physical devices; or Exclude the input accessory altogether, preventing most users from accessing the extra keys, but allowing the app to work with a physical keyboard. Not a great choice, so I'm still keen to see if anyone else has addressed this problem!

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• Commit is VERY slow in my NHibernate / SQLite project

  - by Tom Bushell

  I've just started doing some real-world performance testing on my Fluent NHibernate / SQLite project, and am experiencing some serious delays when when I Commit to the database. By serious, I mean taking 20 - 30 seconds to Commit 30 K of data! This delay seems to get worse as the database grows. When the SQLite DB file is empty, commits happen almost instantly, but when it grows to 10 Meg, I see these huge delays. The database has 16 tables, averaging 10 columns each. One possible problem is that I'm storing a dozen or so IList members, but they are typically only 200 elements long. But this is a recent addition to Fluent NHibernate automapping, which stores each float in a single table row, so maybe that's a potential problem. Any suggestions on how to track this down? I suspect SQLite is the culprit, but maybe it's NHibernate? I don't have any experience with profilers, but am thinking of getting one. I'm aware of NHibernate Profiler - any recommendations for profilers that work well with SQLite? Here's the method that saves the data - it's just a SaveOrUpdate call and a Commit, if you ignore all the error handling and debug logging. public static void SaveMeasurement(object measurement) { Debug.WriteLine("\r\n---SaveMeasurement---"); // Get the application's database session var session = GetSession(); using (var transaction = session.BeginTransaction()) { try { session.SaveOrUpdate(measurement); } catch (Exception e) { throw new ApplicationException( "\r\n SaveMeasurement->SaveOrUpdate failed\r\n\r\n", e); } try { Debug.WriteLine("\r\n---Commit---"); transaction.Commit(); Debug.WriteLine("\r\n---Commit Complete---"); } catch (Exception e) { throw new ApplicationException( "\r\n SaveMeasurement->Commit failed\r\n\r\n", e); } } }

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• Is It Incorrect to Make Domain Objects Aware of The Data Access Layer?

  - by Noah Goodrich

  I am currently working on rewriting an application to use Data Mappers that completely abstract the database from the Domain layer. However, I am now wondering which is the better approach to handling relationships between Domain objects: Call the necessary find() method from the related data mapper directly within the domain object Write the relationship logic into the native data mapper (which is what the examples tend to do in PoEAA) and then call the native data mapper function within the domain object. Either it seems to me that in order to preserve the 'Fat Model, Skinny Controller' mantra, the domain objects have to be aware of the data mappers (whether it be their own or that they have access to the other mappers in the system). Additionally it seems that Option 2 unnecessarily complicates the data access layer as it creates table access logic across multiple data mappers instead of confining it to a single data mapper. So, is it incorrect to make the domain objects aware of the related data mappers and to call data mapper functions directly from the domain objects? Update: These are the only two solutions that I can envision to handle the issue of relations between domain objects. Any example showing a better method would be welcome.

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• Prolog: Not executing code as expected.

  - by Louis

  Basically I am attempting to have an AI agent navigate a world based on given percepts. My issue is handling how the agent moves. Basically, I have created find_action/4 such that we pass in the percepts, action, current cell, and the direction the agent is facing. As it stands the entire code looks like: http://wesnoth.pastebin.com/kdNvzZ6Y My issue is mainly with lines 102 to 106. Basically, in it's current form the code does not work and the find_action is skipped even when the agent is in fact facing right (I have verified this). This broken code is as follows: % If we are headed right, take a left turn find_action([_, _, _, _, _], Action, _, right) :- retractall(facing(_)), assert(facing(up)), Action = turnleft . However, after some experimentation I have concluded that the following works: % If we are headed right, take a left turn find_action([_, _, _, _, _], Action, _, _) :- facing(right), retractall(facing(_)), assert(facing(up)), Action = turnleft . I am not entire sure why this is. I've attempted to create several identical find_action's as well, each checking a different direction using the facing(_) format, however swipl does not like this and throws an error. Any help would be greatly appreciated.

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• segfault during __cxa_allocate_exception in SWIG wrapped library

  - by lefticus

  While developing a SWIG wrapped C++ library for Ruby, we came across an unexplained crash during exception handling inside the C++ code. I'm not sure of the specific circumstances to recreate the issue, but it happened first during a call to std::uncaught_exception, then after a some code changes, moved to __cxa_allocate_exception during exception construction. Neither GDB nor valgrind provided any insight into the cause of the crash. I've found several references to similar problems, including: http://wiki.fifengine.de/Segfault_in_cxa_allocate_exception http://forums.fifengine.de/index.php?topic=30.0 http://code.google.com/p/osgswig/issues/detail?id=17 https://bugs.launchpad.net/ubuntu/+source/libavg/+bug/241808 The overriding theme seems to be a combination of circumstances: A C application is linked to more than one C++ library More than one version of libstdc++ was used during compilation Generally the second version of C++ used comes from a binary-only implementation of libGL The problem does not occur when linking your library with a C++ application, only with a C application The "solution" is to explicitly link your library with libstdc++ and possibly also with libGL, forcing the order of linking. After trying many combinations with my code, the only solution that I found that works is the LD_PRELOAD="libGL.so libstdc++.so.6" ruby scriptname option. That is, none of the compile-time linking solutions made any difference. My understanding of the issue is that the C++ runtime is not being properly initialized. By forcing the order of linking you bootstrap the initialization process and it works. The problem occurs only with C applications calling C++ libraries because the C application is not itself linking to libstdc++ and is not initializing the C++ runtime. Because using SWIG (or boost::python) is a common way of calling a C++ library from a C application, that is why SWIG often comes up when researching the problem. Is anyone out there able to give more insight into this problem? Is there an actual solution or do only workarounds exist? Thanks.

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• MS Access 2003 - Save button enabling on form open on different tabs

  - by Justin

  I have a tab control on a form, and a couple different tabs have save buttons on them. Once the user saves data (via SQL statements in VBA), I set the .enabled = false so that they cannot use this button again until moving to a brand new record (which is a button click on the overall form). so when my form open i was going to reference a sub that enabled all these save buttons because the open event would mean new record. though i get an error that says it either does not exist, or is closed. any ideas? thanks EDIT: Sub Example() error handling Dim db as dao.database dim rs as dao.recordset dim sql as string SQL = "INSERT INTO tblMain (Name, Address, CITY) VALUES (" if not isnull (me.name) then sql = sql & """" & me.name & """," else sql = sql & " NULL," end if if not insull(me.adress) then sql = sql & " """ & me.address & """," else sql = sql & " NULL," end if if not isnull(me.city) then sql = sql & " """ & me.city & """," else sql = sql & " NULL," end if 'debug.print(sql) set db = currentdb db.execute (sql) MsgBox "Changes were successfully saved" me.MyTabCtl.Pages.Item("SecondPage").setfocus me.cmdSaveInfo.enabled = false and then on then the cmdSave needs to get re enabled on a new record (which by the way, this form is unbound), so it all happens when the form is re-opened. I tried this: Sub Form_Open() me.cmdSaveInfo.enabled = true End Sub and this is where I get the error stated above. So this is also not the tab that has focus when the form opens. Is that why I get this error? I cannot enable or disable a control when the tab is not showing?

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• How to call a service operation at a REST style WCF endpoint uri?

  - by Dieter Domanski

  Hi, is it possible to call a service operation at a wcf endpoint uri with a self hosted service? I want to call some default service operation when the client enters the endpoint uri of the service. In the following sample these uris correctly call the declared operations (SayHello, SayHi): - http://localhost:4711/clerk/hello - http://localhost:4711/clerk/hi But the uri - http://localhost:4711/clerk does not call the declared SayWelcome operation. Instead it leads to the well known 'Metadata publishing disabled' page. Enabling mex does not help, in this case the mex page is shown at the endpoint uri. private void StartSampleServiceHost() { ServiceHost serviceHost = new ServiceHost(typeof(Clerk), new Uri( "http://localhost:4711/clerk/")); ServiceEndpoint endpoint = serviceHost.AddServiceEndpoint(typeof(IClerk), new WebHttpBinding(), ""); endpoint.Behaviors.Add(new WebHttpBehavior()); serviceHost.Open(); } [ServiceContract] public interface IClerk { [OperationContract, WebGet(UriTemplate = "")] Stream SayWelcome(); [OperationContract, WebGet(UriTemplate = "/hello/")] Stream SayHello(); [OperationContract, WebGet(UriTemplate = "/hi/")] Stream SayHi(); } public class Clerk : IClerk { public Stream SayWelcome() { return Say("welcome"); } public Stream SayHello() { return Say("hello"); } public Stream SayHi() { return Say("hi"); } private Stream Say(string what) { string page = @"<html><body>" + what + "</body></html>"; return new MemoryStream(Encoding.UTF8.GetBytes(page)); } } Is there any way to disable the mex handling and to enable a declared operation instead? Thanks in advance, Dieter

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• Browser: Cookie lost on refresh

  - by Nirmal

  I am experiencing a strange behaviour of my application in Chrome browser (No problem with other browsers). When I refresh a page, the cookie is being sent properly, but intermittently the browser doesn't seem to pass the cookie on some refreshes. This is how I set my cookie: $identifier = / some weird string /; $key = md5(uniqid(rand(), true)); $timeout = number_format(time(), 0, '.', '') + 43200; setcookie('fboxauth', $identifier . ":" . $key, $timeout, "/", "fbox.mysite.com", 0); This is what I am using for page headers: header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header("Expires: Thu, 25 Nov 1982 08:24:00 GMT"); // Date in the past Do you see any issue here that might affect the cookie handling? Thank you for any suggestion. EDIT-01: It seems that the cookie is not being sent with some requests. This happens intermittently and I am seeing this behaviour for ALL the browsers now. Has anyone come across such situation? Is there any situation where a cookie will not be sent with the request? Thanks again, for any guideline.

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• Getting Depth Value on Kinect SDK 1.6

  - by AlexanderPD

  this is my first try on Kinect and Kinect SDK so I'm having a lot of "newbie issues" :) my goal is to point my mouse on the Kinect standard video output and get the depth value. I already have both normal video and depth video outputs by using the 2 "Color Basic-WPF" and "Depth Basic-WPF" samples, and handling mouse events or position is not a problem. In fact i already did all and i already got a depth value, but this value is always HIGHLY imprecise. It jumps from 500 to 4000 by just moving to the next pixel in a plane surface. So.. I'm pretty sure I'm reading the depth value in the wrong way. This is how i read it: short debugValue = depthPixels[x*y].Depth; debug.Text = "X = "+x+", Y = "+y+", value = "+debugValue.ToString(); i know it's pretty out of context, this little piece of code is inside the same SensorDepthFrameReady function in "Depth Basic-WPF"! "x" and "y" are the mouse coordinates and depthPixels is DepthImagePixel[] type, a temporary array filled with the "depthFrame.CopyDepthImagePixelDataTo(this.depthPixels);" instruction. Depth frame is filled here: DepthImageFrame depthFrame = e.OpenDepthImageFrame() the "e" comes from here: private void SensorDepthFrameReady(object sender, DepthImageFrameReadyEventArgs e) and this last one is called here: this.sensor.DepthFrameReady += this.SensorDepthFrameReady; how i must handle that depth value i get? I know the value must be between 800 and 4000 but i get values between about 500 and about 8000. i already google a lot (here on SO too) and i still can't understand if the depth value is 11 or 13 bit. The sdk examples uses shrink this value to 8 bit and this is making even more confusion in my head :(

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• iPhone - Memory Management - Using Leaks tool and getting some bizarre readings.

  - by Robert

  Hey all, putting the finishing touches on a project of mine so I figured I would run through it and see if and where I had any memory leaks. Found and fixed most of them but there are a couple of things regarding the memory leaks and object alloc that I am confused about. 1) There are 2 memory leaks that do not show me as responsible. There are 8 leaks attributed to AudioToolbox with the function being RegisterEmbeddedAudioCodecs(). This accounts for about 1.5 kb of leaks. The other one is detected immediately when the app begins. Core Graphics is responsible with the extra info being open_handle_to_dylib_path. For the audio leak I have looked over my audio code and to me it seems ok. self.musicPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:songFilePath] error:NULL]; [musicPlayer prepareToPlay]; [musicPlayer play] is called later on in a function. 2) Is it normal for there to be a spike in Object Allocation whenever a new view or controller is presented? My total memory usage is very, very low except for whenever I present a view controller. It spikes then immediately goes back down. I am guessing that this is just the phone handling all the information for switching or something. Blegh. Wall of text. Thanks in advance to anyone who helps! =)

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• Method for launching audio player on Android from web page for streaming media

  - by Brad

  To link to SHOUTcast/HTTP internet radio streams, traditionally you would link to a playlist file, such as an M3U or PLS. From there, the browser would launch the audio player registered to handle the playlist. This works great on any PC, Palm, Blackberry, and iPhone. This method does not work in Android without installing extra software. Sure, Just Playlists or StreamFurious can handle it just fine, but I am assuming there has to be a way to invoke the audio or video player commonly installed by default on Android installations. By default, no audio player is capable of handling M3U or PLS. The player seems to open it, but says "Unsupported Media Type". To make this more annoying, the browser is capable of streaming MP3 audio over HTTP, simply by opening a link to an MP3 file. I have tried simply linking directly to the MP3 stream hosted by SHOUTcast, which should end up in the same result, but SHOUTcast detects "Mozilla" in the user-agent string, and instead of sending the stream, it sends the information page for the station. How should I link to a SHOUTcast stream on Android, from a normal mobile site, without using extra applications?

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• Routing trouble for RESTful API - Rails

  - by aressidi

  I'm building out an API for web app that I've been working on for some time. I've started with the User model. The user portion of the API will allow remote clients to a) retrieve user data, b) update user information and c) create new users. I've gotten all of this to work, but it doesn't seem like its setup correctly. Here are my questions: Should the API endpoint be users or user? What's the best practice? I have to add the action to the end, which I would expect to be picked up instead by the request type so I don't have to specify it explicitly. How do I get my routes setup properly as not to have to include the method for protected actions? Let me give some examples: Get request for show - want it to work without the "show" curl -u rmbruno:blah http://app.local/api/users/show Put request for update - want it to work without the "update" curl -X put -F 'user[forum_notifications]=true' -u rmbruno:blah http://app.local/api/users/update Create - works with or without 'create' which is what I want for all these actions curl -X post -F 'user[login]=mamafatta' -F 'user[email][email protected]' -F 'user[password]=12345678' http://twye.local/api/users/ How do I structure routes to not require the action name? Isn't that the common way to to RESTful APIs? Here is my route for the API now: map.namespace :api do |route| route.resources :users route.resources :weight end I'm using restful authentication which is handling the http auth in curl. Any guidance on the routes issues and best practice on singular versus plural would be really helpful. Thanks! -A

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• Symfony dynamic forms

  - by Asier

  Hi there, I started with a form, which is made by hand because of it's complexity (it's a javascript modified form, with sortable parts, etc). The problem is that now I need to do the validation, and it's a total mess to do it from scratch in the action using the sfValidator* classes. So, I am thinking to do it using sfForm so that my form validation and error handling can be done more easier and so I can reuse this form for the Edit and Create pages. The form is something like this: <form> <input name="form[year]"/> <textarea name="form[description]"></textarea> <div class="sortable"> <div class="item"> <input name="form[items][0][name]"/> <input name="form[items][0][age]"/> </div> <div class="item"> <input name="form[items][1][name]"/> <input name="form[items][1][age]"/> </div> </div> </form> The thing is that the sortable part of the form can be expanded from 2 to N elements on the client side. So that it has variable items quantity which can be reordered. How can I approach this problem? Any ideas are welcome, thank you. :)

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• Is there something wrong with this code? AMFReader vs AMFWriter

  - by Triynko

  Something doesn't seem right about the source code for Flash Remoting's Date(AS3) <- DateTime(.NET) stream reader/writer methods, when it comes to handling UTC <- Local times. It seems to write the DateTime data fine, including a 64-bit representation as milliseconds elapsed since Jan 1, 1970, as well as a UTC offset. public void WriteDateTime(DateTime d) { this.BaseStream.WriteByte(11); DateTime time = new DateTime(0x7b2, 1, 1); long totalMilliseconds = (long)d.Subtract(time).TotalMilliseconds; long l = BitConverter.DoubleToInt64Bits((double)totalMilliseconds); this.WriteLong(l); int hours = TimeZone.CurrentTimeZone.GetUtcOffset(DateTime.Today).Hours; this.WriteShort(hours); } But when the data is read... it seems to be ignoring the short UTC offset value that was written, and appears to just discard it! private DateTime ReadDateValue() { long num2 = (long)this.ReadDouble(); DateTime time2 = new DateTime(0x7b2, 1, 1).AddMilliseconds((double)num2); int num3 = this.ReadInt16() / 60; //num3 is not used for anything! return time2; } Can anyone make sense of this? I also found some similar source code for AMFReader here, which has a ReadDateTime method, that seems to do something very similar... but goes on to use the UTC offset for something.

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• Retrieve Records from paypal csv file

  - by Pankaj Khurana

  Hi, I want to retrieve all the records from paypal csv file where type='Payment Processed' and store it in a database table.It should be available in the following format: 'Heading':'Value' The format of the csv is: "Transaction ID","Reference Transaction ID","Date","Type","Subject","Item Number","Item Name","Invoice ID","Name","Email","Shipping Name","Shipping Address Line 1","Shipping Address Line 2","Shipping Address City","Shipping State/Province","Shipping Zip/Postal Code","Shipping Address Country","Shipping Method","Address Status","Contact Phone Number","Gross Amount","Receipt ID","Custom Field","Option 1 Name","Option 1 Value","Option 2 Name","Option 2 Value","Note","Auction Site","Auction User ID","Item URL","Auction Closing Date","Insurance Amount","Currency","Fees","Net Amount","Shipping & Handling Amount","Sales Tax Amount","To Email","Time","Time Zone" "1T","",5/5/2010 2:10:44 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User1","[email protected]","","","","","","","","","N","","68.18","R1","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","01:40","Asia/Calcutta" "2T","",5/19/2010 4:04:08 PM,"Payment Processed","CFP Self Study Kit","1","CFP Self Study Kit","","User2","[email protected]","","","","","","","","","N","","68.18","R2","","","","","","","","","",,"","USD","-2.62","65.56","0","0","[email protected]","03:34","Asia/Calcutta" "3T","1RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","17492.6","","","","","","","","","","",,"","INR","0","17492.6","0","0","","04:58","Asia/Calcutta" "4T","2RT",5/19/2010 5:28:45 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-393.36","","","","","","","","","","",,"","USD","0","-393.36","0","0","","04:58","Asia/Calcutta" "5T","",5/19/2010 5:28:45 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","04:58","Asia/Calcutta" "6T","",5/20/2010 5:38:02 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-17492.6","","","","","","","","","","",,"","INR","0","-17492.6","0","0","","05:08","Asia/Calcutta" "7T","",5/21/2010 12:32:37 PM,"Payment Processed","FP - LVC Plus","","FP - LVC Plus","","User3","[email protected]","User3","NEW DELHI","BEHIND KARNATAKA BANK LD","SOUTH","NEW DELHI","110023","IN","","N","","283.96","","","","","","","","","","",,"","USD","-9.95","274.01","0","0","[email protected]","00:02","Asia/Calcutta" "8T","",5/25/2010 4:40:48 PM,"Transfer to Bank Initiated","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:10","Asia/Calcutta" "9T","3RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","-274.01","","","","","","","","","","",,"","USD","0","-274.01","0","0","","04:10","Asia/Calcutta" "10T","4RT",5/25/2010 4:40:48 PM,"Currency Conversion Completed","","","",""," ","","","","","","","","","","N","","12569.85","","","","","","","","","","",,"","INR","0","12569.85","0","0","","04:10","Asia/Calcutta" "11T","",5/26/2010 4:57:39 PM,"Transfer to Bank Completed","P1006","","P1006",""," ","","","","","","","","","","N","","-12569.85","","","","","","","","","","",,"","INR","0","-12569.85","0","0","","04:27","Asia/Calcutta" "Total","-247.05 USD","-15.19","-262.24" "Total","0.00 INR","0.00","0.00" Please help me on this Thanks

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• Multiple elements with the same name with SimpleXML and Java

  - by LouieGeetoo

  I'm trying to use SimpleXML to parse an XML document (an ItemLookupResponse for a book from the Amazon Product Advertising API) which contains the following element: <ItemAttributes> <Author>Shane Conder</Author> <Author>Lauren Darcey</Author> <Manufacturer>Pearson Educacion</Manufacturer> <ProductGroup>Book</ProductGroup> <Title>Android Wireless Application Development: Barnes & Noble Special Edition</Title> </ItemAttributes> My problem is that I don't know how to deal with the multiple possible Author elements. Here's what I have right now for the corresponding POJO (Plain Old Java Object), keeping in mind that it's not handling the case of multiple Authors: @Element public class ItemAttributes { @Element public String Author; @Element public String Manufacturer; @Element public String Title; } (I don't care about the ProductGroup, so it's not in the class -- I'm just setting SimpleXML's strict mode to off to allow for that.) I couldn't find an example in the documentation that corresponded with such a case. Using an ElementList with (inline=true) seemed along the right lines, but I didn't see how to do it for String (as opposed to a separate Author class, which I have no need for and don't see how it would even work). Here's a similar question and answer, but for PHP: php - simpleXML how to access a specific element with the same name as others? I don't know what the Java equivalent would be to the accepted answer. Thanks in advance.

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• RestSharp post object to WCF

  - by steve

  Im having an issue posting an object to my wcf rest webservice. On the WCF side I have the following: [WebInvoke(UriTemplate = "", Method = "POST")] public void Create(myObject object) { //save some stuff to the db } When im debugging this never gets hit - it does however get hit when I remove the parameter so im guessing ive done something wrong on the restSharp side of things. Heres my code for that part: var client = new RestClient(ApiBaseUri); var request = new RestRequest(Method.POST); request.RequestFormat = DataFormat.Xml; request.AddBody(myObject); var response = client.Execute(request); Am I doing this wrong? How can the WCF side see my object? What way should I be making the reqest? Or should I be handling it differently WCF side? Things ive tried: request.AddObject(myObject); and request.AddBody(request.XmlSerialise.serialise(myObject)); Any help and understanding in what could possibly be wrong would be much appreciated. Thanks.

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• Python and Unicode: How everything should be Unicode

  - by A A

  Forgive if this a long a question: I have been programming in Python for around six months. Self taught, starting with the Python tutorial and then SO and then just using Google for stuff. Here is the sad part: No one told me all strings should be Unicode. No, I am not lying or making this up, but where does the tutorial mention it? And most examples also I see just make use of byte strings, instead of Unicode strings. I was just browsing and came across this question on SO, which says how every string in Python should be a Unicode string. This pretty much made me cry! I read that every string in Python 3.0 is Unicode by default, so my questions are for 2.x: Should I do a: print u'Some text' or just print 'Text' ? Everything should be Unicode, does this mean, like say I have a tuple: t = ('First', 'Second'), it should be t = (u'First', u'Second')? I read that I can do a from __future__ import unicode_literals and then every string will be a Unicode string, but should I do this inside a container also? When reading/ writing to a file, I should use the codecs module. Right? Or should I just use the standard way or reading/ writing and encode or decode where required? If I get the string from say raw_input(), should I convert that to Unicode also? What is the common approach to handling all of the above issues in 2.x? The from __future__ import unicode_literals statement? Sorry for being a such a noob, but this changes what I have been doing for a long time and so clearly I am confused.

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• Testing Finite State Machines

  - by Pondidum

  I have inherited a large and firaly complex state machine at work. It has 31 possbile states to be in. It has the following inputs: Enum: Current State (so 0 - 30) Enum: source (currently only 2 entries) Boolean: Request Boolean: type Enum: Status (3 states) Enum: Handling (3 states) Boolean: Completed The 31 States are really needed (big business process). Breaking into seperate state machines doesnt seem feasable - each state is distinct. I have written tests for one set of inputs (the most common set), with one test per input (all inputs constant, except for the State input): [Subject("Application Process States")] public class When_state_is_meeting2Requested : AppProcessBase { Establish context = () => { //Setup.... }; Because of = () => process.Load(jas, vac); It Current_node_should_be_meeting2Requested = () => process.CurrentNode.ShouldBeOfType<meetingRequestedNode>(); It Can_move_to_clientDeclined = () => Check(process, process.clientDeclined); It Can_move_to_meeting1Arranged = () => Check(process, process.meeting1Arranged); It Can_move_to_meeting2Arranged = () => Check(process, process.meeting2Arranged); It Can_move_to_Reject = () => Check(process, process.Reject); It Cannot_move_to_any_other_state = () => AllOthersFalse(process); } As no one is entirely sure on what the output should be for each state and set of inputs i have been starting to write tests for it, however on calculation i will need to write 4320 ( 30*2*2*2*3*3*2 ) tests for it. Does anyone have any suggestions on how i should go about testing this?

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• Django Image Upload: IOErrno2 Could not find path -- and yet it's saving the image there anyway?

  - by Rob

  I have an issue where the local version of django is handling image upload as expected but my server is not. Note: I am using a Django Container on MediaTemple.net (grid server) Here is my code. def view_settings(request): <snip> if request.POST: success_msgs = () mForm = MainProfileForm(request.POST, request.FILES, instance = mProfile) pForm = ChangePasswordForm(request.POST) eForm = ChangeEmailForm(request.POST) if mForm.is_valid(): m = mForm.save(commit = False) if mForm.cleaned_data['avatar']: m.avatar = upload_photo(request.FILES['avatar'], settings.AVATAR_SAVE_LOCATION) m.save() success_msgs += ('profile pictured updated',) <snip> def upload_photo(data,saveLocation): savePath = os.path.join(settings.MEDIA_ROOT, saveLocation, data.name) destination = open(savePath, 'wb+') for chunk in data.chunks(): destination.write(chunk) destination.close() return os.path.join(saveLocation, data.name) Here's where it gets whacky and I was hoping someone could shed a light on this error, because either a) it's the wrong error code, or b) something is happening with the file before it's completely handled. To recap, the file was actually uploaded to the server in the intended directory - and yet this err msg continues to persist. IOError at /user/settings [Errno 2] No such file or directory: u'/home/user66666/domains/example.com/html/media/images/avatars/DSC03852.JPG' Environment: Request Method: POST Request URL: http://111.111.111.111:2011/user/settings Django Version: 1.0.2 final Python Version: 2.4.4 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'ctrlme', 'usertools', 'easy_thumbnails'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware') Traceback: File "/home/user6666/containers/django/leonidas/usertools/views.py" in view_settings m.avatar = upload_photo(request.FILES['avatar'], settings.AVATAR_SAVE_LOCATION) File "/home/user666666/containers/django/leonidas/usertools/functions.py" in upload_photo destination = open(savePath, 'wb+')

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