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• Java 7u4 webstart security exception: Class does not match trust level

  - by Glstunna

  We began to notice that with Java 7 (particularly with update 4), that all our users began to see this with our Webstart app: [14:42:58,422] AWT-EventQueue-0(DEBUG) java.lang.SecurityException: class "CLASSNAME" does not match trust level of other classes in the same package [14:42:58,422] AWT-EventQueue-0(DEBUG) at com.sun.deploy.security.CPCallbackHandler$ChildElement.checkResource(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at com.sun.deploy.security.DeployURLClassPath$JarLoader.checkResource(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at com.sun.deploy.security.DeployURLClassPath$JarLoader.getResource(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at com.sun.deploy.security.DeployURLClassPath.getResource(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.net.URLClassLoader$1.run(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.net.URLClassLoader$1.run(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.security.AccessController.doPrivileged(Native Method) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.net.URLClassLoader.findClass(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.lang.ClassLoader.loadClass(Unknown Source) [14:42:58,422] AWT-EventQueue-0(DEBUG) at java.lang.ClassLoader.loadClass(Unknown Source)...More Where CLASSNAME = pretty much every class at random points from several jars in the app execution, breaking several behavior. If our users were to use Java 6, they have no problems! Just 7 (update 4). We sign ALL our jars, both the main application jar and it's library jars. i.e Users launching our webstart app see the blue shield instead of yellow or red. This is obviously an issue as users are more frequently now upgrading to Java 7. I have tried to force our app to use Java 6 on the user machine either by using a previous installation(works), or installing a new one....with the j2se version="1.6" tag around resources but this causes it's own problems that would probably be best to make into it's own thread (the auto-jre-installation part). Did Oracle break Webstart security with Java 7u4? How do I solve this securityexception issue?

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• Is this a tableView issue or a CoreData Issue

  - by monotreme

  I have a CoreData-driven navigation app and I'm trying to figure out why It's crashing. I've got a hierarchy which is 3 view Controllers deep, all related by coredata relatioships, like this. TableViewA =relationship= TableViewB =relationship= TableViewC I'm honestly a novice at core data and I think my problem lies in the fetched results controller. I have one in TableViewA and another in TableViewB, and no matter how deep I go, the console always cites TableViewB's fetched results controller methods after a crash. Is this the problem? What's happening specifically is if I launch my app and drill down into the hierarchy of one record, let's call it Record1, I can delete sub records to my hearts content. Gone! no problem! But the second I go back to TableViewA and drill down into a different record, let's call that one Record2, and try to delete it's subrecords my app crashes, with the console citing this code from TableViewB as the problem. - (void)controllerWillChangeContent:(NSFetchedResultsController *)controller { // The fetch controller is about to start sending change notifications, so prepare the table view for updates. [self.tableView beginUpdates]; } When I go into the debugger, the specific method it always has a problem with is: if (![x.managedObjectContext save:&error]) { NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } Just a confirmation of my idiocy with CoreData is all I'm looking for I think. Oh and how many ManagedObjectContexts should I have in an app of this type. I've been told I should have separate ones for adding content, which then should re-integrate into the main one. Is this true? Thanks!

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• Strange behavior using getchar() and -O3

  - by Eduardo

  I have these two functions void set_dram_channel_width(int channel_width){ printf("one\n"); getchar(); } void set_dram_transaction_granularity(int cacheline_size){ printf("two\n"); getchar(); } //output: one f //my keyboard input two one f //keyboard input two one f //keyboard input //No more calls Then I change the functions to: void set_dram_channel_width(int channel_width){ printf("one\n"); } void set_dram_transaction_granularity(int cacheline_size){ printf("two\n"); getchar(); } //output one two f //keyboard input //No more calls Both functions are called by an external code, the code for both programs is the same, just changing the getchar() I get those two different outputs. Is this possible or there is something that is really wrong in my code? Thanks This is the output I get with GDB** For the first code (gdb) break mem-dram.c:374 Breakpoint 1 at 0x71c810: file build/ALPHA_FS/mem/dramsim/mem-dram.c, line 374. (gdb) break mem-dram.c:381 Breakpoint 2 at 0x71c7b0: file build/ALPHA_FS/mem/dramsim/mem-dram.c, line 381. (gdb) run -d ./tmp/MyBench2/ one f [Switching to Thread 47368811512112 (LWP 17507)] Breakpoint 1, set_dram_channel_width (channel_width=64) (gdb) c Continuing. two one f Breakpoint 2, set_dram_transaction_granularity (cacheline_size=64) (gdb) c Continuing. Breakpoint 1, set_dram_channel_width (channel_width=8) 374 void set_dram_channel_width(int channel_width){ (gdb) c Continuing. two one f For the second code (gdb) break mem-dram.c:374 Breakpoint 1 at 0x71c7b6: file build/ALPHA_FS/mem/dramsim/mem-dram.c, line 374. (gdb) break mem-dram.c:380 Breakpoint 2 at 0x71c7f0: file build/ALPHA_FS/mem/dramsim/mem-dram.c, line 380. (gdb) run one two f [Switching to Thread 46985688772912 (LWP 17801)] Breakpoint 1, set_dram_channel_width (channel_width=64) (gdb) c Continuing. Breakpoint 2, set_dram_transaction_granularity (cacheline_size=64) (gdb) c Continuing. Breakpoint 1, set_dram_channel_width (channel_width=8) (gdb) c Continuing.

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• Microsoft OLE DB Provider for SQL Server error '80040e14' Could not find stored procedure

  - by BBlake

  I am migrating a classic ASP web app to new servers. The database back end is migrating from SQL Server 2000 to SQL Server 2008, and the app is moving from Win2000 x86 to Win2003R2 x64. I am getting the above error on every single stored procedure call within the application. I have verified: Yes, the SQL user is set up, using correct username and password Yes, the SQL user has execute permissions on the stored procedures in the database Yes, I have updated the TypeLib references to the new UUID Yes, I have logged into the database via SSMS with the SQL user id and it can see and execute the stored procedures just fine in SSMS, but not from the web app. Yes, the SQL user has the database set as its default database. The most frustrating thing is it works fine on the DEV server, but not on the production server. I have gone through every IIS setting 5 or 6 times and the web app is set up precisely the same in both environments. The only difference is the database server name in the connection string (DEV vs prod) EDIT: I have also tried pointing the prod web box at the dev database server and get the same error so I'm fairly sure the issue isn't on the database side.

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• How to terminate a particular Azure worker role instance

  - by Oliver Bock

  Background I am trying to work out the best structure for an Azure application. Each of my worker roles will spin up multiple long-running jobs. Over time I can transfer jobs from one instance to another by switching them to a readonly mode on the source instance, spinning them up on the target instance, and then spinning the original down on the source instance. If I have too many jobs then I can tell Azure to spin up extra role instance, and use them for new jobs. Conversely if my load drops (e.g. during the night) then I can consolidate outstanding jobs to a few machines and tell Azure to give me fewer instances. The trouble is that (as I understand it) Azure provides no mechanism to allow me to decide which instance to stop. Thus I cannot know which servers to consolidate onto, and some of my jobs will die when their instance stops, causing delays for users while I restart those jobs on surviving instances. Idea 1: I decide which instance to stop, and return from its Run(). I then tell Azure to reduce my instance count by one, and hope it concludes that the broken instance is a good candidate. Has anyone tried anything like this? Idea 2: I predefine a whole bunch of different worker roles, with identical contents. I can individually stop and start them by switching their instance count from zero to one, and back again. I think this idea would work, but I don't like it because it seems to go against the natural Azure way of doing things, and because it involves me in a lot of extra bookkeeping to manage the extra worker roles. Idea 3: Live with it. Any better ideas?

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• TimeoutException when WCF Host and Client are in the same process

  - by Pharao2k

  I've ran into a really weird problem. I am building a heavily distributed application where each app instance can either be a Host and/or Client to a WCF-Service (very p2p-like). Everything works fine, as long as the Client and the targeted Host (By which I mean the app, not the Host, since currently everything runs on a single computer (so no Firewall problems etc.)) are NOT the same. IF they are the same, then the app hangs for exactly 1 Minute and then throws a TimeoutException. WCF-Logging did not produce anything helpful. Here is a small app which demonstrates the Problem: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { var binding = new NetTcpBinding(); var baseAddress = new Uri(@"net.tcp://localhost:4000/Test"); ServiceHost host = new ServiceHost(typeof(TestService), baseAddress); host.AddServiceEndpoint(typeof(ITestService), binding, baseAddress); var debug = host.Description.Behaviors.Find<ServiceDebugBehavior>(); if (debug == null) host.Description.Behaviors.Add(new ServiceDebugBehavior { IncludeExceptionDetailInFaults = true }); else debug.IncludeExceptionDetailInFaults = true; host.Open(); var clientBinding = new NetTcpBinding(); var testProxy = new TestProxy(clientBinding, new EndpointAddress(baseAddress)); testProxy.Test(); } } [ServiceContract] public interface ITestService { [OperationContract] void Test(); } public class TestService : ITestService { public void Test() { MessageBox.Show("foo"); } } public class TestProxy : ClientBase<ITestService>, ITestService { public TestProxy(NetTcpBinding binding, EndpointAddress remoteAddress) : base(binding, remoteAddress) { } public void Test() { Channel.Test(); } } What am I doing wrong? Regards, Pharao2k

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• How do I add IIS Virtual Directories and arbitrary files in TFS Solution

  - by chriscena

  We have a web portal product from which we customize portals from customers. We use the precompiled web app and create a virtual directory (vd) where the customization resides. In addition to this we do some changes web.config in the web app folder. We would obviously like to keep these customizations under TFS source control. When I try to add the precompiled web app (which I don't want to add to source control), a warning tells me that the vds cannot be added. If I only add the folder that is referenced to by the vd, I lose the references to assemblies in the precompiled web app. My questions are: How do I structure a solution for adding IIS (sub application level) virtual directories and still retain the references to assemblies? Is it possible to add other directories/files from the web application level (like App_Theme, web.config etc.) to the solution? Since we already use Visual Source Safe, we have established a tree structure for each customization project: Project Root | |-Custom Sql | |-Custom Portal Files (which is added as a virtual directory) | |-Other Customizations I could probably do a lot of this manually through the source control explorer, but I'd like to have everything done through a solution. I've followed the instructions using this article: http://msdn.microsoft.com/en-us/library/bb668986.aspx, but this doesn't address the exact problem that I have. Oh, and we are currently using Visual Source Safe for portal customizaton, but are eager to make the move to TFS. TIA

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• What is the best way to handle autorotation with multiple subview?

  - by thangnguyen

  I am learning and programing an application. I do this project based on what I learned from the book Beginning iphone 3 development. I have two main questions here: I would like to create a multi utility application so I need multiple-view. I have a main view controller which will control switching between views. In this example I have two views A and B. I have 2 view controller A and B which will handles all of events on these 2 views. I have 2 nib files viewA.xib and viewB.xib. One of the uitility is reading PDF. So I create another class which handle the PDF file which can load a PDF page call PDFview. From Interface Builder, I selected class identity for view of the viewB.xib as PDFView class. The result is I can switching between View A and view B. View B will display the content of the PDF page. I am not sure if my solution is right or wrong but now I don't know how to handle the autorotation. The rotation will active the view controller B. But the PDFView handle how to display the PDF on the View. Could you please tell me how I should handle this in a right way? Second question: Should I create the subview automatically? In case I need to do the swipe page animation, how can I do that? I think that I need to load another subview so I can do the animation when swap view. But I think this solution will waste the resource. I can just load another page of the PDF, but in this case I don't know how to use animation? Please tell me how I should solve this? I highly appreciate your time reading and answering my question. Thang Nguyen

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• ASP.NET webservice API security.

  - by Tejaswi Yerukalapudi

  Hi, I have an iPhone app accessing an ASP.NET Webservice for data. Since I'm building both the ASP.NET end and the iPhone part of the app, and we'll shortly be publishing it in the Appstore, I'd like to know what security checks I need to make. The basic flow of the program (without divulging too much info about it) is as follows - . Login (Enter Username, pass on the app) . Primary screen where the data is loaded from a webservice and presented . And post data back after a few updates by the user I'm using POST to send the data to the Webservice via HTTPS. I'm sanitizing the inputs, checking for length of the inputs, but that's the limit of my knowledge as far as security goes. Any other tips are greatly appreciated! Edit: I should probably add that our service needs to be subscribed to separately and the iPhone component of it cannot be used alone. So the average user will not have login credentials. And the app itself has healthcare data in it, so I'd rather not have anyone trying attacks from my login page. Thanks, Teja.

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• Trying to Use LoadMoreElement in Monotouch.Dialog

  - by user1487581

  I am using Monotouch to write an Ipad app. The app uses tables to browse down through a directory tree and then select a file. I have used Monotouch.Dialog to browse the directories and I set up the directory tables as the app starts.However there are too many files to set up in a table as the app starts and so I want to set up the 'file table' as the file is selected from the lowest level directory table. I am trying to use LoadMoreElement to do this but I cannot make it work or find any examples online. I have coded the 'Elements API Walkthrough' in the Xamarin tutorial at:- http://docs.xamarin.com/ios/tutorials/MonoTouch.Dialog I then add a new section to the code:- _addButton.Clicked += (sender, e) => { ++n; var task = new Task{Name = "task " + n, DueDate = DateTime.Now}; var taskElement = new RootElement (task.Name){ new Section () { new EntryElement (task.Name, "Enter task description", task.Description) }, new Section () { new DateElement ("Due Date", task.DueDate) }, new Section() { new LoadMoreElement("Passive","Active", delegate {MyAction();}) } }; _rootElement [0].Add (taskElement); Where MyAction is:- public void MyAction() { Console.WriteLine ("we have been actioned"); } The problem is that MyAction is triggered and Console.Writeline writes the message but the table stays in the active state and never returns to passive. the documentation says:- Once your code in the NSAction is finished, the UIActivity indicator stops animating and the normal caption is displayed again. What am I missing? Ian

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• WSMethodInvocationSetCallBack symbol not found after importing files generated from WSMakeStubs

  - by racingcow

  Hello, I am pretty new to Objective-C, and I am trying to write an iPhone app to call a simple web service. I used WSMakeStubs to point to my WSDL file, and it generated 4 files for me... WSGeneratedObj.h WSGeneratedObj.m CtServices2.h CtServices2.m I added only the WSGeneratedObj.h and WSGeneratedObj.m files into a new iPhone app, added in the mobile core services framework from... /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk/System/Library/Frameworks/MobileCoreServices.framework ...and then compiled. I get the following errors... Building target “iMagioSearch2” of project “iMagioSearch2” with configuration “Debug” Checking Dependencies Ld /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator/iMagioSearch2.app/iMagioSearch2 normal i386 cd /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2 setenv MACOSX_DEPLOYMENT_TARGET 10.5 setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.sdk -L/Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator -F/Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator -filelist /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/iMagioSearch2.build/Debug-iphonesimulator/iMagioSearch2.build/Objects-normal/i386/iMagioSearch2.LinkFileList -mmacosx-version-min=10.5 -framework Foundation -framework UIKit -framework CoreGraphics -framework MobileCoreServices -o /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator/iMagioSearch2.app/iMagioSearch2 Undefined symbols: "_kWSSOAPBodyEncodingStyle", referenced from: _kWSSOAPBodyEncodingStyle$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationCreate", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o "_kWSSOAPMethodNamespaceURI", referenced from: _kWSSOAPMethodNamespaceURI$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationUnscheduleFromRunLoop", referenced from: -[WSGeneratedObj getResultDictionary] in WSGeneratedObj.o -[WSGeneratedObj unscheduleFromRunLoop:mode:] in WSGeneratedObj.o "_WSMethodResultIsFault", referenced from: -[WSGeneratedObj isFault] in WSGeneratedObj.o "_kWSMethodInvocationResult", referenced from: _kWSMethodInvocationResult$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationSetProperty", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o "_WSMethodInvocationScheduleWithRunLoop", referenced from: -[WSGeneratedObj getResultDictionary] in WSGeneratedObj.o -[WSGeneratedObj scheduleOnRunLoop:mode:] in WSGeneratedObj.o "_kWSHTTPExtraHeaders", referenced from: _kWSHTTPExtraHeaders$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationSetParameters", referenced from: -[WSGeneratedObj setParameters:values:names:] in WSGeneratedObj.o "_WSMethodInvocationSetCallBack", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o ld: symbol(s) not found collect2: ld returned 1 exit status Does anyone know of anything I can check or why I might be getting this error? Thanks, David

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• Rails CSS not Loading using Heroku

  - by eWizardII

  I have the following site set up here on Heroku - http://www.peerinstruction.net/users/sign_up the issue is that I have updated the css yet it is not being actively reflected on the site, it just shows a textbox, with some edited/custom fonts. I have attached the css file in the following gist - https://gist.github.com/f74b626c54ecbb60bbde The signup page controller: !!! Strict %html %head %title= yield(:title) || "Untitled" = stylesheet_link_tag 'application', 'web-app-theme/base', 'web-app-theme/themes/activo/style', 'web-app-theme/override' = javascript_include_tag :defaults = csrf_meta_tag = yield(:head) %body #container #header %h1 %a{:href => "/"} Peer Instruction Network #user-navigation %ul.wat-cf %li .content.login .flash - flash.each do |type, message| %div{ :class => "message #{type}" } %p= message = form_for(resource, :as => resource_name, :url => session_path(resource_name), :html => { :class => "form login" }) do |f| .group.wat-cf .left= f.label :email, :class => "label right" .right= f.text_field :email, :class => "text_field" .group.wat-cf .left= f.label :password, :class => "label right" .right= f.password_field :password, :class => "text_field" .group.wat-cf .right %button.button{ :type => "submit" } Login /= link_to "Sign In", destroy_user_session_path #box = yield The signup pages haml file: %h2 .block .content.login .flash - flash.each do |type, message| %div{ :class => "message #{type}" } %p= message = form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| = devise_error_messages! %div = f.label :firstname %br/ = f.text_field :firstname %div = f.label :middlename %br/ = f.text_field :middlename %div = f.label :lastname %br/ = f.text_field :lastname %div = f.label :email %br/ = f.email_field :email %div = f.label :password %br/ = f.password_field :password %div = f.label :academic %br/ = f.text_field :academic %div= f.submit "Continue" = render :partial => "devise/shared/links" I used web-app-theme to create an activo theme and then modify it.

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• Solution for cleaning an image cache directory on the SD card

  - by synic

  I've got an app that is heavily based on remote images. They are usually displayed alongside some data in a ListView. A lot of these images are new, and a lot of the old ones will never be seen again. I'm currently storing all of these images on the SD card in a custom cache directory (ala evancharlton's magnatune app). I noticed that after about 10 days, the directory totals ~30MB. This is quite a bit more than I expected, and it leads me to believe that I need to come up with a good solution for cleaning out old files... and I just can't think of a great one. Maybe you can help. These are the ideas that I've had: Delete old files. When the app starts, start a background thread, and delete all files older than X days. This seems to pose a problem, though, in that, if the user actively uses the app, this could make the device sluggish if there are hundreds of files to delete. After creating the files on the SD card, call new File("/path/to/file").deleteOnExit(); This will cause all files to be deleted when the VM exits (I don't even know if this method works on Android). This is acceptable, because, even though the files need to be cached for the session, they don't need to be cached for the next session. It seems like this will also slow the device down if there are a lot of files to be deleted when the VM exits. Delete old files, up to a max number of files. Same as #1, but only delete N number of files at a time. I don't really like this idea, and if the user was very active, it may never be able to catch up and keep the cache directory clean. That's about all I've got. Any suggestions would be appreciated.

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• Syncing data between devel/live databases in Django

  - by T. Stone

  With Django's new multi-db functionality in the development version, I've been trying to work on creating a management command that let's me synchronize the data from the live site down to a developer machine for extended testing. (Having actual data, particularly user-entered data, allows me to test a broader range of inputs.) Right now I've got a "mostly" working command. It can sync "simple" model data but the problem I'm having is that it ignores ManyToMany fields which I don't see any reason for it do so. Anyone have any ideas of either how to fix that or a better want to handle this? Should I be exporting that first query to a fixture first and then re-importing it? from django.core.management.base import LabelCommand from django.db.utils import IntegrityError from django.db import models from django.conf import settings LIVE_DATABASE_KEY = 'live' class Command(LabelCommand): help = ("Synchronizes the data between the local machine and the live server") args = "APP_NAME" label = 'application name' requires_model_validation = False can_import_settings = True def handle_label(self, label, **options): # Make sure we're running the command on a developer machine and that we've got the right settings db_settings = getattr(settings, 'DATABASES', {}) if not LIVE_DATABASE_KEY in db_settings: print 'Could not find "%s" in database settings.' % LIVE_DATABASE_KEY return if db_settings.get('default') == db_settings.get(LIVE_DATABASE_KEY): print 'Data cannot synchronize with self. This command must be run on a non-production server.' return # Fetch all models for the given app try: app = models.get_app(label) app_models = models.get_models(app) except: print "The app '%s' could not be found or models could not be loaded for it." % label for model in app_models: print 'Syncing %s.%s ...' % (model._meta.app_label, model._meta.object_name) # Query each model from the live site qs = model.objects.all().using(LIVE_DATABASE_KEY) # ...and save it to the local database for record in qs: try: record.save(using='default') except IntegrityError: # Skip as the record probably already exists pass

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• auto m3u creation

  - by newbie69

  Hi, I am looking for a solution to automatically create .m3u playlists for each music folder in my sdcard so that the music player can play music by folders. I had written a simple VB.Net app in the past that does exactly the above but apparently, it has to be run from Windows. Since I have no Java nor Android developing experience I found it quite hard to try to write a similar app that can be run directly from the phone. In a few words, the app does the following: 1) Searches the SD and lists all folders that contain 2 or more .mp3 files (just for user verification) 2) Creates in every listed folder above, a .m3u file that simply lists line-by-line all the mp3 files that exist in the specific folder. Is there such an app or could someone spare some time and give me some rough instructions on how to create it in Eclipse 3.5.2 environment? (device used: Motorola Droid/Milestone, Android 2.1) I don't care about any graphics or complex UI, just a script to execute the above procedure that would give every "playlist-supporting" music player in Android, the precious ability to play music by folders. I know it is too much to ask but just in case! Thanx in advance.

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• How to solve timing problems in automated UI tests with C# and Visual Studio?

  - by Lernkurve

  Question What is the standard approach to solve timing problems in automated UI tests? Concrete example I am using Visual Studio 2010 and Team Foundation Server 2010 to create automated UI tests and want to check whether my application has really stopped running: [TestMethod] public void MyTestMethod() { Assert.IsTrue(!IsMyAppRunning(), "App shouldn't be running, but is."); StartMyApp(); Assert.IsTrue(IsMyAppRunning(), "App should have been started and should be running now."); StopMyApp(); //Pause(500); Assert.IsTrue(!IsMyAppRunning(), "App was stopped and shouldn't be running anymore."); } private bool IsMyAppRunning() { foreach (Process runningProcesse in Process.GetProcesses()) { if (runningProcesse.ProcessName.Equals("Myapp")) { return true; } } return false; } private void Pause(int pauseTimeInMilliseconds) { System.Threading.Thread.Sleep(pauseTimeInMilliseconds); } StartMyApp() and StopMyApp() have been recorded with MS Test Manager 2010 and reside in UIMap.uitest. The last assert fails because the assertion is executed while my application is still in the process of shutting down. If I put a delay after StopApp() the test case passes. The above is just an example to explain my problem. What is the standard approach to solve these kinds of timing issues? One idea would be to wait with the assertion until I get some event notification that my app has been stopped.

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• Window Leaked on FBConnect in Android?

  - by Praveen Chandrasekaran

  how to rectify this Window Leaked Exception. i cant find why its occured. My LogCat Info: 05-07 17:25:05.402: ERROR/WindowManager(13595): Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): android.view.WindowLeaked: Activity com.codecarpet.fbconnect.FBLoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@433b9ae0 that was originally added here 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.ViewRoot.<init>(ViewRoot.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:148) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.view.Window$LocalWindowManager.addView(Window.java:409) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.Dialog.show(Dialog.java:238) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:107) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ProgressDialog.show(ProgressDialog.java:95) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBProgressDialog.show(FBProgressDialog.java:106) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.codecarpet.fbconnect.FBDialog$WebViewClientImpl.onPageStarted(FBDialog.java:508) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:214) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Handler.dispatchMessage(Handler.java:99) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.os.Looper.loop(Looper.java:123) 05-07 17:25:05.402: ERROR/WindowManager(13595): at android.app.ActivityThread.main(ActivityThread.java:4203) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invokeNative(Native Method) 05-07 17:25:05.402: ERROR/WindowManager(13595): at java.lang.reflect.Method.invoke(Method.java:521) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791) 05-07 17:25:05.402: ERROR/WindowManager(13595): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549) 05-07 17:25:05.402: ERROR/WindowManager(13595): at dalvik.system.NativeStart.main(Native Method)

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• How to get NEW width/height of root layout in onConfigurationChanged?

  - by jboxer

  One of our views has a ScrollView as its root layout. When the device is rotated and onConfigurationChanged() is called, we'd like to be able to get the ScrollView's new width/height. Our code looks like this: @Override public void onConfigurationChanged(Configuration newConfig) { Log.d(TAG, "Width: '" + findViewById(R.id.scrollview).getWidth() + "'"); Log.d(TAG, "Height: '" + findViewById(R.id.scrollview).getHeight() + "'"); super.onConfigurationChanged(newConfig); Log.d(TAG, "Width: '" + findViewById(R.id.scrollview).getWidth() + "'"); Log.d(TAG, "Height: '" + findViewById(R.id.scrollview).getHeight() + "'"); } And the relevant section of our AndroidManifest.xml looks like this: <activity android:name=".SomeActivity" android:configChanges="keyboardHidden|orientation"> <intent-filter> <action android:name="android.intent.action.MAIN" /> </intent-filter> </activity> On our Droid, we expected to see the ScrollView's width go to 854 when switched into landscape, and to 480 when switched back to portrait (and the height do the equivalent switch, minus the menu bar). However, we're seeing the opposite. Here's our LogCat: // Switching to landscape: 03-26 11:26:16.490: DEBUG/ourtag(17245): Width: '480' // Before super 03-26 11:26:16.490: DEBUG/ourtag(17245): Height: '778' // Before super 03-26 11:26:16.529: DEBUG/ourtag(17245): Width: '480' // After super 03-26 11:26:16.536: DEBUG/ourtag(17245): Height: '778' // After super // Switching to portrait: 03-26 11:26:28.724: DEBUG/ourtag(17245): Width: '854' // Before super 03-26 11:26:28.740: DEBUG/ourtag(17245): Height: '404' // Before super 03-26 11:26:28.740: DEBUG/ourtag(17245): Width: '854' // After super 03-26 11:26:28.740: DEBUG/ourtag(17245): Height: '404' // After super Clearly, we're getting the portrait dimensions when we switch to landscape, and the landscape dimensions when we switch to portrait. Is there something we're doing wrong? We could get hacky and solve this, but I feel like there's a simple solution that we're missing.

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• Why can't I pass an argument to create this window using wxpython?

  - by somefreakingguy

  I am trying to learn how to make a GUI in python! Following an online tutorial, I found that the following code 'works' in creating an empty window: import wx from sys import argv class bucky(wx.Frame): def __init__(self, parent, id): wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(300, 200)) if __name__=='__main__': app=wx.PySimpleApp() frame=bucky(parent=None,id=-1) frame.Show() app.MainLoop() That gives me a window, which is great. However, what if I want to get an argument passed onto the program to determine the window size? I thought something like this ought to do the trick: import wx from sys import argv script, x, y = argv class mywindow(wx.Frame): def __init__(self, parent, id): wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(x, y)) if __name__=='__main__': app=wx.PySimpleApp() frame=mywindow(parent=None,id=-1) frame.Show() app.MainLoop() But, alas, that does not work! Nor does the raw_input() function pass on the value. I keep getting the following error: C:/Python26/pythonw.exe -u "C:/Documents and Settings/Owner/Desktop/wz.py" File "C:/Documents and Settings/Owner/Desktop/wz.py", line 8 wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(x y)) ^ SyntaxError: invalid syntax Thanks for the help!

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• How to rename an existing Grails application

  - by Johan Pelgrim

  Hi there, Does anybody know how to (easily) "rename" an existing grails application? I'm running into this because my PaaS provider does not allow me to delete a subscription... So I want to deploy my application under a different name. Of course, I can do this manually, but I think it might be a useful 'top-level' script (i.e. "grails rename-app newappname") Manual hints: When I do a "grails create-app myappname" I can see the myappname exists in the following files (and filenames)... Of course this is done by the create-app script, which replaces @...@ tokens in the template. I guess once they are replaced, it's not trivial to do a rename. ./.project: <name>myappname</name> ./application.properties:app.name=myappname ./build.xml:<project xmlns:ivy="antlib:org.apache.ivy.ant" name="myappname" default="test"> ./ivy.xml: <info organisation="org.example" module="myappname"/> ./myappname-test.launch:<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="myappname"/> ./myappname.launch:<listEntry value="/myappname"/> ./myappname.launch:<listEntry value="<?xml version="1.0" encoding="UTF-8"?> <runtimeClasspathEntry containerPath="org.eclipse.jdt.launching.JRE_CONTAINER" javaProject="myappname" path="1" type="4"/> "/> ./myappname.launch:<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="myappname"/> ./myappname.launch:<stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-Dbase.dir="${project_loc:myappname}" -Dserver.port=8080 -Dgrails.env=development"/> ./myappname.tmproj: <string>myappname.launch</string> And of course... the top-level directory name is "myappname" Any hints, or information about ongoing initiatives in this area are welcome Greetz, Johan

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• How to open AsyncTask from a Thread

  - by Abhishek

  In my application I have created a SplashScreen that will b shown for 5 Seconds and after that it executes an if else case depending upon the values stored in the Preference file. If Preference file contains values then the AsyncTask code will run else the Login form will load. When i try to run my application. The thread is going to the Login form with the help of intent but when it comes to AsyncTask my application shows a force close error message. This is my SplashScreen code: public class SplashScreen extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.splashscreen); Thread timer = new Thread() { public void run() { try { sleep(5000); } catch(InterruptedException e) { e.printStackTrace(); } finally { if(GoGolfPref.getEmail(SplashScreen.this)!=null && GoGolfPref.getPass(SplashScreen.this)!=null) { new LoadingScreen(SplashScreen.this, SplashScreen.this).execute("login_page", Login.url+GoGolfPref.getEmail(SplashScreen.this)+"/"+GoGolfPref.getPass(SplashScreen.this)); } else { Intent in = new Intent(SplashScreen.this, Login.class); startActivity(in); finish(); } } } }; timer.start(); } } This is the error I am getting: 08-29 07:25:58.040: E/AndroidRuntime(2365): FATAL EXCEPTION: Thread-10 08-29 07:25:58.040: E/AndroidRuntime(2365): java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare() 08-29 07:25:58.040: E/AndroidRuntime(2365): at android.os.Handler.<init>(Handler.java:121) 08-29 07:25:58.040: E/AndroidRuntime(2365): at android.app.Dialog.<init>(Dialog.java:101) 08-29 07:25:58.040: E/AndroidRuntime(2365): at android.app.AlertDialog.<init>(AlertDialog.java:63) 08-29 07:25:58.040: E/AndroidRuntime(2365): at android.app.ProgressDialog.<init>(ProgressDialog.java:80) 08-29 07:25:58.040: E/AndroidRuntime(2365): at android.app.ProgressDialog.<init>(ProgressDialog.java:76) 08-29 07:25:58.040: E/AndroidRuntime(2365): at com.pnf.gogolf.LoadingScreen.<init>(LoadingScreen.java:130) 08-29 07:25:58.040: E/AndroidRuntime(2365): at com.pnf.gogolf.SplashScreen$1.run(SplashScreen.java:32) How to get this working? Thanks in advance...

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• Optimizing quality for available bandwidth in Flash/RTMFP

  - by Artem M.

  I'm developing a simple one-on-one P2P video chat using ActionScript, and I'd like to ensure the best video quality for the peers given their bandwidth. This means: Setting the best quality given the available bandwidth when the chat starts Responding to network congestions during chat by decreasing the quality. The task is similar to dynamic stream switching, but P2P has its specifics that make dynamic streaming approaches not work. For example, the maxBytesPerSecond metric monitored in dynamic stream switching is pretty useless in P2P where the receiving NetStream's buffer size is set to 0 to minimize latency. So far, it looks like the most reliable QoS metric for P2P is SRTT. In my simulated tests on a local network, a bandwidth congestion makes it shot up to 500 ms and more when there's a bandwidth limit introduced. However, it gives no hint as to how best adjust the value for bandwidth in Camera.setQuality(0, bandwidth) to respond to the congestion. I've done lots of experiments, and I still don't see a clear and simple solution to the problem. I'm also wondering how this issue is addressed (if at all) in other RTMFP chat solutions.

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• Sinatra application running on Dreamhost suddenly not working

  - by jbrennan

  My Sinatra application was running fine on Dreamhost until a few days ago (I'm not sure precisely when it went bad). Now when I visit my app I get this error: can't activate rack (~> 1.1, runtime) for ["sinatra-1.1.2"], already activated rack-1.2.1 for [] I have no idea how to fix this. I've tried updating all my gems, then touching the app/tmp/restart.txt file, but still no fix. I hadn't touched any files of my app, nor my Dreamhost account. It just busted on its own (my guess is DH changed something on their server which caused the bust). When I originally deployed my app, I had to go through some hoops to get it working, and I seem to think I was using gems in a custom location, but I can't remember exactly where or how. I don't know my way around Rack/Passenger very well. Here's my config.ru: (mostly grafted from around the web, I don't fully understand it) ENV['RACK_ENV'] = 'development' if ENV['RACK_ENV'].empty? #### Make sure my own gem path is included first ENV['GEM_HOME'] = "#{ENV['HOME']}/.gems" ENV['GEM_PATH'] = "#{ENV['HOME']}/.gems:" require 'rubygems' Gem.clear_paths ## NB! key part require 'sinatra' set :env, :production disable :run require 'MY_APP_NAME.rb' run Sinatra::Application

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• Using WCF to expose underlying process

  - by Steven

  I think I must be a little dull because I'm having so much difficulty with this. I use WCF for pretty much everything in-house, it's the most appropriate technology. I have a new Silverlight 3 app that is connecting to the WCF service and that's working fine. Where the problem begins is: Because of the expense in creating the objects within this service and the high correlation of individual objects being shared between clients I want to have a console application that basically gathers/calculates/caches all the data for the service 24/7 and the service basically connects to the console app (or whatever it is) and gets the pre-processed data. eg, think of it in terms of a stock reporting app (which it is). Person A has a portfolio of x, y z Person B has a portfolio of x, q, z, r The service needs to provide updated metrics on how their portfolio is performing. So instead of every 1 second processing person A, then person B, the app independently gathers the stock price and persons position information into memory and the service just queries the in memory result. Thanks for your help, I really am feeling dumb right now.

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• N-son tabbed/JsScrollbar, trying to force gif play from click of link using jquery

  - by user314286

  Hello everyone, Let me start off by stating the obvious; I am new here. That said I hope I am not violating some standard I missed by posting this. xD For several days now I've been trying to update a rather old site of mine, to which I wont link to given that the update is so drastic that the current product on which I seek your help for doesn't resemble the old site in any other way then appearance. Anywho! I am using the tabbed div and JsScrollbar created by N-son (http://www.downloadjavascripts.com/list/javasitek60/Details.aspx) and so far have only used jquery to dynamically center content on the page. My problem however is this...I have a gif on the page that acts as a background (it's not tiled) and I'd like to be able to have it so that when you click on one of the links used in n-sons tabs (EX: news) it also causes the gif to load and play through itself once. So far all my attempts at accomplishing this myself have failed and break wither the scrollbar or prevent the content from switching when you click the tabs. (Except for one failed attempt where it all worked fine except the handle for the scrollbar would vanish upon switching tabs) I hope I've been clear in this and that someone is able to help. I know it may seem like a silly question but we're all new at some point. :P If need be I'll upload what coding I have but it is not pretty. Thank you in advance.

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