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  • CherryPy configuration tools.staticdir.root problem

    - by Alan Harris-Reid
    Hi there, How can I make my static-file root directories relative to my application root folder (instead of a hard-coded path)? In accordance with CP instructions (http://www.cherrypy.org/wiki/StaticContent) I have tried the following in my configuration file: tree.cpapp = cherrypy.Application(cpapp.Root()) tools.staticdir.root = cpapp.current_dir but when I run cherrpy.quickstart(rootclass, script_name='/', config=config_file) I get the following error builtins.ValueError: ("Config error in section: 'global', option: 'tree.cpapp', value: 'cherrypy.Application(cpapp.Root())'. Config values must be valid Python.", 'TypeError', ("unrepr could not resolve the name 'cpapp'",)) I know I can do configuration from within the main.py file just before quickstart is called (eg. using os.path.abspath(os.path.dirname(file))), but I prefer using the idea of a separate configuration file if possible. Any help would be appreciated (in case it is relevant, I am using CP 3.2 with Python 3.1) TIA Alan

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  • How to get Netty websocket client example working

    - by Paul Butcher
    I'm struggling to get the netty example websocket client working. I've compiled successfully with 4.0.0.Alpha8, but when I try to connect to a server (also a netty example) I get: Exception in thread "main" io.netty.handler.codec.http.websocketx.WebSocketHandshakeException: Invalid handshake response upgrade: websocket at io.netty.handler.codec.http.websocketx.WebSocketClientHandshaker13.finishHandshake(WebSocketClientHandshaker13.java:204) which makes no sense to me whatsoever, given that this piece of code reads: String upgrade = response.getHeader(Names.UPGRADE); if (!Values.WEBSOCKET.equalsIgnoreCase(upgrade)) { throw new WebSocketHandshakeException("Invalid handshake response upgrade: " + response.getHeader(Names.UPGRADE)); } And as the message in the exception demonstrates, the Upgrade header does contain websocket as expected. Any idea what's going on?

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  • Override default operations order in LINQ

    - by Erick
    For one of our applications we do use LINQ to update a few reccords of the database. For business reasons we do require that only one item of a list to be primary. When we designed we decided to fire all of queries at the database at once. The problems occurs when we add one row and update the primary element to be the second item. See, the default behavior for order of operations with LINQ is to Insert, Update, Delete. If I Insert a first element I get a check constraint error with SQL Server. The best in my opinion would be to override and make sure to Update before Insert, this way we make sure that check constraints are kept. Tho there is not a lot of documentation on the mather. Any idea ?

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  • Problem with Apache Commons Id UUID Version 1 generation

    - by Pekka Mattila
    My problem is to generate version 1 UUIDs. We use Jetty 6.x, Maven (to start Jetty among other things) and Apache Commons ID (to generate UUID version 1 from the current time). Apache Commons ID requires a configuration file that is told to the JVM, using a parameter, e.g. 'org.apache.commons.id.uuid.config.resource.filename=commons-id-uuid.xml'. I checked the Apache Commons ID code and it tries to find the file from the classpath. Jetty's documentation states that WEB-INF/lib and WEB-INF/classes are in the classpath. The 'commons-id-uuid.xml' can be found from the deployed war file from the root of WEB-INF/classes directory but Jetty cannot load it: Message: java.lang.RuntimeException: java.lang.IllegalStateException: commons-id-uuid.xml loaded as system resource is null Jetty was started using the following command: mvn jetty:run -Dorg.apache.commons.id.uuid.config.resource.filename=commons-id-uuid.xml Any idea what is going wrong? We just need to generate UUID version 1 identifiers. Any suggestions?

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  • The reasons to upgrade from Delphi 2009

    - by Serg
    I have made the question "community wiki" - it is subjective. I have upgraded to Delphi 2009 because of unicode support. I have found the anonymous methods a very interesting and useful language feature, I can't say the same about generics. The generics seemed important for me before the upgrade to Delphi 2009, but I have never used them and probably will never use. As for Delphi 2010, I don't need the attributes and I don't like the whole idea of extended RTTI - that is why Delphi 2009 is better for me. Sometimes I hit one or other annoying bug in Delphi 2009 IDE, but they are not critical and I can live with them. I have no plans to develop software for Mac or Linux. Sure sometime I will need 64-bit support, so I think about upgrading to Delphi 2012. Are where any more reasons that can force me to upgrade from Delphi 2009?

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  • MySQLdb through proxy

    - by MihaiD
    I'm using the above mentioned Python lib to connect to a MySQL server. So far I've worked locally and all worked fine, until i realized I'll have to use my program in a network where all access goes through a proxy. Does anyone now how I can set the connections managed by that lib to use a proxy? Alternatively: do you know of another Python lib for MySQL that can handle this? I also have no idea if the if the proxy server will allow access to the standard MySQL port or how I can trick it to allow it. Help on this is also welcomed.

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  • Rails belongs_to issues

    - by Rahul
    I was trying to follow the answer provided by this post About Event_calendar.Showing only events for current user and not all events present However when I tried to add the belongs_to user in the event model, it gives me the following error. NameError (undefined local variable or method 'user' for #<Class:0x007fff15d1f6c0>): app/models/event.rb:3:in '<class:Event>' app/models/event.rb:1:in '<top (required)>' app/controllers/calendar_controller.rb:9:in 'index' Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.8ms) Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms) Rendered .../.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (23.6ms) in my user.rb model I have included has_many :events Any idea how to fix this?

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  • Am I crazy? (How) should I create a jQuery content editor?

    - by Brendon Muir
    Ok, so I created a CMS mainly aimed at Primary Schools. It's getting fairly popular in New Zealand but the one thing I hate with a passion is the largely bad quality of in browser WYSIWYG editors. I've been using KTML (made by InterAKT which was purchased by Adobe a few years ago). In my opinion this editor does a lot of great things (image editing/management, thumbnailing and pretty good content editing). Unfortunately time has had its nasty way with this product and new browsers are beginning to break features and generally degrade the performance of this tool. It's also quite scary basing my livelihood on a defunct product! I've been hunting, in fact I regularly hunt around to see if anything has changed in the WYSIWYG arena. The closest thing I've seen that excites me is the WYSIHAT framework, but they've decided to ignore a pretty relevant editing paradigm which I'm going to outline below. This is the idea for my proposed editor, and I don't know of any existing products that can do this properly: Right, so the traditional model for editing let's say a Page in a CMS is to log into a 'back end' and click edit on the page. This will then load another screen with the editor in it and perhaps a few other fields. More advanced CMS's will maybe have several editing boxes that are for different portions of the page. Anyway, the big problem with this way of doing things is that the user is editing a document outside of the final context it will appear in. In the simplest terms, this means the page template. Many things can be wrong, e.g. the with of the editing area might be different to the width of the actual template area. The height is nearly always fixed because existing editors always seem to use IFRAMES for backward compatibility. And there are plenty of other beefs which I'm sure you're quite aware of if you're in this development area. Here's my editor utopia: You click 'Edit Page': The actual page (with its actual template) displays. Portions of the page have been marked as editable via a class name. You click on one of these areas (in my case it'd just be the big 'body' area in the middle of the template) and a editing bar drops down from the top of the screen with all your standard controls (bold, italic, insert image etc...). Iframes are never used, instead we rely on setting contentEditable to true on the DIV's in question. Firefox 2 and IE6 can go away, let's move on. You can edit the page knowing exactly how it will look when you save it. Because all the styles for this template are loaded, your headings will look correct, everything will be just dandy. Is this such a radical concept? Why are we still content with TinyMCE and that other editor that is too embarrassing to use because it sounds like a swear word!? Let's face the facts: I'm a JavaScript novice. I did once play around in this area using the Javascript Anthology from SitePoint as a guide. It was quite a cool learning experience, but they of course used the IFRAME to make their lives easier. I tried to go a different route and just use contentEditable and even tried to sidestep the native content editing routines (execCommand) and instead wrote my own. They kind of worked but there were always issues. Now we have jQuery, and a few libraries that abstract things like IE's lack of Range support. I'm wondering, am I crazy, or is it actually a good idea to try and build an editor around this editing paradigm using jQuery and relevant plugins to make the job easier? My actual questions: Where would you start? What plugins do you know of that would help the most? Is it worth it, or is there a magical project that already exists that I should join in on? What are the biggest hurdles to overcome in a project like this? Am I crazy? I hope this question has been posted on the right board. I figured it is a technical question as I'm wanting to know specific hurdles and pitfalls to watch out for and also if it is technically feasible with todays technology. Looking forward to hearing peoples thoughts and opinions.

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  • Simulating mouse clicks on Mac OSX does not work for some applications.

    - by Thomi
    Hi, I'm writing an App for Mac OSX 10.6 and later in C++. One part of theapp needs to simulate mouse movement and mouse clicks. I do this currently by posting CGEvent objects using CGEventPost(kCGHIDEventTap, event);. This works, for the msot part - I can simulate mouse movement and clicks just fine, but it seems to fail in some areas. For example: In Mozilla firefox & Safari, I can click on all the menus, but cannot click on a link within a website. When I try, the link is highlighted, but the browser never follows the link. However, I can right-click on a link, select "open link in new tab", and everything works as expected. I can click on the "Dashboard" icon to brink up the dashboard, but I cannot click on the "i" button on any of the dashboard widgets. This inconsistency is along application boundaries - Does anyone have any idea what the cause might be?

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  • Simulating mouse clicks on Mac OSX does not work for some applications.

    - by Thomi
    Hi, I'm writing an App for Mac OSX 10.6 and later in C++. One part of theapp needs to simulate mouse movement and mouse clicks. I do this currently by posting CGEvent objects using CGEventPost(kCGHIDEventTap, event);. This works, for the msot part - I can simulate mouse movement and clicks just fine, but it seems to fail in some areas. For example: In Mozilla firefox & Safari, I can click on all the menus, but cannot click on a link within a website. When I try, the link is highlighted, but the browser never follows the link. However, I can right-click on a link, select "open link in new tab", and everything works as expected. I can click on the "Dashboard" icon to brink up the dashboard, but I cannot click on the "i" button on any of the dashboard widgets. This inconsistency is along application boundaries - Does anyone have any idea what the cause might be?

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  • comparator with null values.

    - by pvgoddijn
    Hi, We have some code wich sorts a list of addresses based on the distance between their coordinates. this is done through collections.sort with a custom comparator. However from time to time an adress without coordinates is in the list causing a NullPointerException. My initial idea to fix this was to have the comparator return 0 as dististance for addresses where at least one of the coordinates is null. I fear this might lead to corruption of the order the 'valid' elements in the list. so is returning a '0' values for null data in a comparator ok, or is there a cleaner way to resolve this.

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  • The finest way to store the HardCore Data i android

    - by david
    Hi All! I am working on an application where I have a long listing of different states approximately 20 states and each state consisting of several zones in addition to the weather forcast of each zone eventually. Now the thing is that I have already created the Listing of hardcore data in a list view of all the states. Again I need to add the hardcore data of several zones for each state(min 4 to 5 zones/ state). So , now I am wondering that whether I have to create the separate classes with hardcore names of all the zones in each state or is there any easy way out for doing the same. It would be great if anyone having the idea can tell me. Thanks, david

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  • How long does it take to iterate through a long loop?

    - by Carl Rosenberger
    On a modern 64-Bit machine, how long do you think it takes to iterate through all the positive long numbers? Below is a code snippet in Java to demonstrate the idea. Without running the code yourself, how long do you think this code is going to run? How long will similar code run in other programming languages? public class LongLoop { public static void main(String[] args) { long startTime = System.currentTimeMillis(); for (long i = 0; i < Long.MAX_VALUE; i++) { // do nothing, just loop } long stopTime = System.currentTimeMillis(); long duration = stopTime - startTime; System.out.println("Time taken: " + duration + " milliseconds"); } }

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  • Design Layout/Patterns

    - by wpfwannabe
    I am still fairly new to C# and I am trying to decide the best way to structure a new program. Here is what I want to do and I would like feed back on my idea. Presentation Layer Business Layer (Separate Class Library) Data Layer (Separate Class Library) Model Layer (Separate Class Library) What I am struggling with is if it is ok to have the classes in the Data Layer and Business Layer inherit from the types I define in Model Layer. This way I can extended the types as needed in my Business Layer with any new properties I see fit. I might not use every property from the Model type in my Business Layer class but is that really a big deal? If this isn't clear enough I can try and put together an example.

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  • using git on android

    - by Dave
    Hi all, I have a desktop application using git for synchronization. I have also an android application which do the same as the desktop, but I don't know how to do the synchronization part on it. I haven't found any implementation of git on android. I found a jgit, but its unwell documented and I was not able to do even a commit with that. I was thinking about remote commands to my git server from my android app, but this is really a tease for me. Could you tell me if any other git implementation which can be used on android exists? If you have any idea how to solve that, please tell me. Thanks for reply, Dave

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  • Java: "Could not find the main class. Program will exit"

    - by AJ
    I'm trying to run SQuirreL SQL. I've downloaded it and installed it, but when I try to run it I get this error message: Java Virtual Machine Launcher. Could not find the main class. Program will exit. I get the gist of this, but I have not idea how to fix it. Any help? more info: I'm on Windows XP pro. I have java 1.6 installed, and other apps are running OK. The install ran OK. I believe I've followed the installation instructions correctly. To run it, I'm invoking the squirrel-sql.bat file. Update This question: http://stackoverflow.com/questions/1417328/could-not-find-the-main-class gives some background on this error from the point of view of a java developer.

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  • Public-facing SharePoint 2007 portal - authentication question

    - by jdcorr
    I am involved in developing a portal with a public-facing side. For this i created a web application with windows authentication for intranet zone and after that, I created an extension for an internet zone with fba. In the internet extension we have the following requirement: - able to acess to sharepoint backoffice using fba. - have a authentication mecanism for portal visitors, where they can authenticate and acess to a page where they can subscribe the newsletter and define some site appearance (this users can't acess to sharepoint backoffice). My idea is use the aspnet membership provider to authenticate both users and create diferente roles for them. Anyone suggests another approach? Is there any way to ensure that visitors (2 case) do not enter the backoffice portal? Thanks

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  • To store images from UIGetScreenImage() in NSMutable Array

    - by sujyanarayan
    Hi, I'm getting images from UIGetScreenImage() and storing directly in mutable array like:- image = [UIImage imageWithScreenContents]; [array addObject:image]; [image release]; I've set this code in timer so I cant use UIImagePNGRepresentation() to store as NSData as it reduces the performance. I want to use this array directly after sometime i.e after capturing 1000 images in 100 seconds. When I use the code below:- UIImage *im = [[UIImage alloc] init]; im = [array objectAtIndex:i]; UIImageWriteToSavedPhotosAlbum(im, nil, nil, nil); the application crashes. And I dont want to use UIImagePNG or JPGRepresentation() in timer as it reduces performance. My problem is how to use this array so that it is converted into image. If anybody has idea related to it please share with me. Thanks in Advance.

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  • [Ubuntu] How can i log-in to Ubuntu using USB-serial console (rs232) ?

    - by marc
    Welcome, How can enable remote terminal login into Ubuntu 9.10 using usb-serial terminal ? I got created device ttyUSB0 and i want allow to log-in using hyper-terminal. I found some resources but they are related to real! hardware rs232 ports, i can't find any information about USB converter. Right now i have established connection between that usb-serial port and my laptop (i can send text writing to port cp sometext.txt /dev/ttyUSB0 and read using hyperterminal). Any idea ? Regards

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  • How can I retain carriage returns when I'm encrypting data?

    - by William Calleja
    I have this following setup, a textarea named with some data in it that may have carriage returns and another textarea that has style='display:none' in order to make it hidden as follows: <textarea id="myTextarea" onBlur="encryptMyData()"></textarea> <textarea name="encryptedText" style='display:none'></textarea> the user enters data in the first textarea and when that text area loses focus the 'encryptMyData()' javascript function is calling an ajax call to take whatever the user entered in the first textfield, encrypt it using rijndael, and paste it in the encryptedText textarea so that it is stored in the database later. Now what I need to do is this, find a way to convert the carriage returns before encryption to a tag like so [cr] so that when I retrieve the data, all formatting is retained. Any idea how I do this? I'm using asp.net and c# to perform the encryption.

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  • GUI freezes when executing def function. Use threads?

    - by wtzolt
    Hi, I've made a small program which has 2 buttons and each does certain thing. Here's a simplified version of the code. Thing is it works fine except that the button freezes and stays in a clicked position and whole GUI freezes until the command is completed. As far as I know threads would be best to use in this situation, but I have no idea how to implement it in this example. I use glade and pygtk for gui. def do1: t = 2 #do something time.sleep(t) #do something time.sleep(t) def do2: t = 3 #do something time.sleep(t) #do something time.sleep(t) class we: wTree = None def __init__( self ): self.wTree = gtk.glade.XML( "ui.glade" ) dic = { "on_buttonSone" : self.sone, "on_buttonStwo" : self.stwo, } self.wTree.signal_autoconnect( dic ) gtk.main() def sone(self, widget): i = 0 while i < 3: t = 1 #do something i += 1 time.sleep(t) self.wTree.get_widget("entryResult").set_text("Done.") def stwo(self, widget): start = time.clock() array = ['A','B'] adict = {'A':do1,'B':do2} for f in array: adict[f]() end = time.clock() elapsed = end - start gg = round(elapsed,2) self.wTree.get_widget("entryResult").set_text(str(gg)) go=we()

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  • What is the best IDE?

    - by venom
    Hello. As a not so experienced man in programming, I start to use netbeans PLATFORM. And I am really impressed by its power (for rich desktop app). I have been learning the programming in another way on university. I have never thought that something as powerful as nb Platform exists. My idea was that 30 people work on some rich desktop app for more than year to make it "beta". Now I know, that it is much more easier. But, I have never be satisfied with my own opinions about "something is best". I am still looking for better mouse trap. So the question is: What is most powerful IDE you know? (it does not strongly depends on language, it means if some combination of language/IDE is really powerful, feel free to answer.)

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  • Monotouch Binding to Linea Pro SDK

    - by jeffrapp
    I'm trying to create a binding to the Linea Pro (it's the barcode scanner they use in the Apple Stores, Lowes) SDK. I'm using David Sandor's bindings as a reference, but the SDK has been updated a few times since January of 2011. I have most everything working, except for the playSound call, which is used to, well, play a sound on the Linea Pro device. The .h file from the SDK has the call as follows: -(BOOL)playSound:(int)volume beepData:(int *)data length:(int)length error:(NSError **)error; I've tried using int[], NSArray, and an IntPtr to the int[], but nothing seems to work. The last unsuccessful iteration of my binding looks like: [Export ("playSound:beepData:length:")] void PlaySound (int volume, NSArray data, int length); Now, this doesn't work at all. Also note that I have no idea what to do with the error:(NSError **)error part, either. I am lacking some serious familiarity with C, so any help would be extremely appreciated.

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  • Variable for the field name of mysql row result

    - by ana
    I'm retrieving a row with php from mysql and it has fields like: name_en, name_es, name_de... I want to retrieve the right field base on my $lang variable (en, es, de...). If the $lang variable is 'es', I'd need to get $row['name_es']. I've tried this (based on this thread), but it's not working: $name = $row->{'name_'.$lang}; Any idea how can I use a variable as the name of the field of a row? Thanks in advance for your help!

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  • How to detect a Triangle gesture with kinect?

    - by Akhilesh Mishra
    I am trying to implement a gesture recognition system which interprets the geometric gestures user makes and draws it on screen, I have some idea of how circle can be recognized, however i have no clue how to get started with triangle recognition. the data I have is X and Y coordinates of all points the gesture passed through. I get this data by tracking right hand. I found something online called Hough Transform , which is used for detecting lines but i am not sure whether it will work for discrete collection of points, Any ideas folks?

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