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  • parallel-python error: RuntimeError("Socket connection is broken")

    - by user288558
    I am using a simple program to send a function: import pp nodes=('mosura02','mosura03','mosura04','mosura05','mosura06', 'mosura09','mosura10','mosura11','mosura12') nodes=('miner:60001',) def pptester(): js=pp.Server(ppservers=nodes) js.set_ncpus(0) tmp=[] for i in range(200): tmp.append(js.submit(ppworktest,(),(),('os',))) return tmp def ppworktest(): import os return os.system("uname -a") the result is: wkerzend@mosura:/home/wkerzend/tmp/ppython_test>ssh miner "source ~/coala_python_setup.sh;ppserver.py -d -p 60001" 2010-04-12 00:50:48,162 - pp - INFO - Creating server instance (pp-1.6.0) 2010-04-12 00:50:52,732 - pp - INFO - pp local server started with 32 workers 2010-04-12 00:50:52,732 - pp - DEBUG - Strarting network server interface=0.0.0.0 port=60001 Exception in thread client_socket: Traceback (most recent call last): File "/usr/lib64/python2.6/threading.py", line 525, in __bootstrap_inner self.run() File "/usr/lib64/python2.6/threading.py", line 477, in run self.__target(*self.__args, **self.__kwargs) File "/home/wkerzend/python_coala/bin/ppserver.py", line 161, in crun ctype = mysocket.receive() File "/home/wkerzend/python_coala/lib/python2.6/site-packages/pptransport.py", line 178, in receive raise RuntimeError("Socket connection is broken") RuntimeError: Socket connection is broken

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  • iPhone: UIImagePickerController Randomly Fails to Take Picture

    - by pion
    I use a UIPickerViewController to take picture. It works 80% but seemingly at random it fails to take a picture. In tracing the code I found out that it occasionally goes to -PinRecordNewTableViewController:viewDidUnload. That is where it fails because it set nil to all ivars. @interface PinRecordNewTableViewController : UITableViewController { } ... @implementation PinRecordNewTableViewController ... - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { ... PinRecordNewPicture *pinRecordNewPicture = [[PinRecordNewPicture alloc] initWithNibName:@"PinRecordNewPicture" bundle:nil]; pinRecordNewPicture.delegate = self; [self.navigationController pushViewController:pinRecordNewPicture animated:YES]; [pinRecordNewPicture release]; ... } @interface PinRecordNewPicture : UIViewController ... @implementation PinRecordNewPicture ... - (void)picturePicker:(UIImagePickerControllerSourceType)theSource { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = theSource; picker.allowsEditing = YES; [self presentModalViewController:picker animated:YES]; [picker release]; } - (IBAction) takePicture:(id)sender { UIImagePickerControllerSourceType source = UIImagePickerControllerSourceTypeCamera; if ([UIImagePickerController isSourceTypeAvailable:source]) { [self picturePicker:source]; } What did I do wrong? Did I miss something that causes it to behave "randomly"? Thanks in advance for your help.

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  • NSXMLParser and Geonames

    - by Xcoder
    I'm trying to parse a call from Geonames with NSXMLParser in the iPhone SDK. I've used this before but for some reason I'm getting an empty dictionary back even though I get results back in a web browser. Can someone please point out what I may be doing wrong. Below is the code I'm using and the results that comes back pasting it in a browser. Thanks in advance #pragma mark - #pragma mark - Parcer Services -(void)beginLoadingFeed{ //[self startLoadingWithMessage:@"Loading Results...."]; NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(loadFeed) object:nil]; [operationQueue addOperation:operation]; [operation release]; } - (void)loadFeed{ NSString *path = [NSString stringWithFormat:@"http://ws.geonames.org/postalCodeSearch?placename=%@&long&maxRows=20",self.location]; [Logger log:@"Geonames Query: %@",path]; [self parseXMLFileAtURL:path]; [self performSelectorOnMainThread:@selector(didfinishedLoadingFeed) withObject:nil waitUntilDone:YES]; } -(void)didfinishedLoadingFeed{ } - (void)parserDidStartDocument:(NSXMLParser *)parser{ [Logger log:@"found file and started parsing"]; } //Called when the parser runs into an open tag (<tag>) - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict { if ([elementName isEqualToString:@"code"]) { currentResult = [NSMutableDictionary dictionary]; } else { currentElement = [elementName copy]; } } //This is just to resolve random HTML entities - (NSData *)parser:(NSXMLParser *)parser resolveExternalEntityName:(NSString *)entityName systemID:(NSString *)systemID { return [entityName dataUsingEncoding:NSASCIIStringEncoding]; } - (void)parseXMLFileAtURL:(NSString *)URL{ self.results = [[[NSMutableArray alloc] init] autorelease]; NSURL *xmlURL = [NSURL URLWithString:URL]; NSXMLParser *parser = [[NSXMLParser alloc] initWithContentsOfURL:xmlURL]; [parser setDelegate:self]; [parser parse]; [parser autorelease]; } - (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError { NSString * errorString = [NSString stringWithFormat:@"Unable to connect to web site (Error code %i )", [parseError code]]; [Logger log:@"error parsing : %@", errorString]; [self stopLoadingView]; [self showMessage:@"Error loading content" withTitle:@"Error Loading"]; } /*** Called when the parser runs into a close tag (</tag>). If it is the Result tag that is closing, we should add the currentResult to the array, and then forget about it ***/ - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if ([elementName isEqualToString:@"code"]) { [self.results addObject:currentResult]; currentResult = nil; } } - (void)parserDidEndDocument:(NSXMLParser *)parser { [Logger log:@"all done!"]; [Logger log:@"results array has %d items", [self.results count]]; [Logger log:@"Results:%@",results]; [theTableView reloadData]; [self stopLoadingView]; } Below is the result that comes back in a browser using the same call above when doing the search for the term "boston": <?xml version="1.0" encoding="UTF-8" standalone="no"?> <geonames> <totalResultsCount>2808</totalResultsCount> <code> <postalcode>02101</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.370567</lat> <lng>-71.026964</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02108</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.357603</lat> <lng>-71.068432</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02109</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.360027</lat> <lng>-71.054495</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02110</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.357636</lat> <lng>-71.051417</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02111</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.350348</lat> <lng>-71.0629</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02114</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.361111</lat> <lng>-71.06823</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02115</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.342706</lat> <lng>-71.092215</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02116</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.349201</lat> <lng>-71.076798</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02118</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.336162</lat> <lng>-71.072854</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02128</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.364197</lat> <lng>-71.025694</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02199</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.347873</lat> <lng>-71.082543</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02210</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.348921</lat> <lng>-71.046511</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02215</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.347088</lat> <lng>-71.102689</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>22713</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>38.538241</lat> <lng>-78.142285</lng> <adminCode1>VA</adminCode1> <adminName1>Virginia</adminName1> <adminCode2>047</adminCode2> <adminName2>Culpeper</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>24592</postalcode> <name>South Boston</name> <countryCode>US</countryCode> <lat>36.696335</lat> <lng>-78.918829</lng> <adminCode1>VA</adminCode1> <adminName1>Virginia</adminName1> <adminCode2>083</adminCode2> <adminName2>Halifax</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02102</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.338947</lat> <lng>-70.919635</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02103</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.338947</lat> <lng>-70.919635</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02104</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.338947</lat> <lng>-70.919635</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02105</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.338947</lat> <lng>-70.919635</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> <code> <postalcode>02106</postalcode> <name>Boston</name> <countryCode>US</countryCode> <lat>42.354318</lat> <lng>-71.073449</lng> <adminCode1>MA</adminCode1> <adminName1>Massachusetts</adminName1> <adminCode2>025</adminCode2> <adminName2>Suffolk</adminName2> <adminCode3/> <adminName3/> </code> </geonames>

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  • What's best practice to check if an object is part of a ManyToMany relationship in Django

    - by PhilGo20
    from an instance of Site with a ManyToMany relationship to Kiosk, i'd like to check if a Kiosk object is part of the relationship. I could do self.apps.get(id=app_id).exists() and check if True or self.apps.get(id=app_id) and catch the ObjectDoesNotExist error or self.apps.filter(id=app_id) and check if True If I have to catch a possible ObjectDoesNotExist error, I may as well use the second one I can do the second but doesnt seem super clean can use the third one but using filter on a unique ID seems wrong to me You can tell me to use whatever works and that'll be a valid answer ;-)

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  • How do i deserialize an object with pyYaml using safe_load?

    - by systempuntoout
    Having a snippet like this: import yaml class User(object): def __init__(self, name, surname): self.name= name self.surname= surname user = User('spam', 'eggs') serialized_user = yaml.dump(user) deserialized_user = yaml.load(serialized_user) print "name: %s, surname %s" % (deserialized_user.name, deserialized_user.surname) Yaml docs says that it is not safe to call yaml.load with any data received from an untrusted source; so, what do i need to modify to my snippet\class to use safe_load method? Is it possible?

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  • add methods in subclasses within the super class constructor

    - by deamon
    I want to add methods (more specifically: method aliases) automatically to Python subclasses. If the subclass defines a method named 'get' I want to add a method alias 'GET' to the dictionary of the subclass. To not repeat myself I'd like to define this modifation routine in the base class. But if I check in the base class init method, there is no such method, since it is defined in the subclass. It will become more clear with some source code: class Base: def __init__(self): if hasattr(self, "get"): setattr(self, "GET", self.get) class Sub(Base): def get(): pass print(dir(Sub)) Output: ['__doc__', '__init__', '__module__', 'get'] It should also contain 'GET'. Is there a way to do it within the base class?

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  • Activity Indicator not displaying based on whether the UIWebView is loading or not...

    - by Jack W-H
    Hi folks Sorry if this is an easy one. Basically, here is my code: MainViewController.h: // // MainViewController.h // Site // // Created by Jack Webb-Heller on 19/03/2010. // Copyright __MyCompanyName__ 2010. All rights reserved. // #import "FlipsideViewController.h" @interface MainViewController : UIViewController <UIWebViewDelegate, FlipsideViewControllerDelegate> { IBOutlet UIWebView *webView; IBOutlet UIActivityIndicatorView *spinner; } - (IBAction)showInfo; @property(nonatomic,retain) UIWebView *webView; @property(nonatomic,retain) UIActivityIndicatorView *spinner; @end MainViewController.m: // // MainViewController.m // Site // // Created by Jack Webb-Heller on 19/03/2010. // Copyright __MyCompanyName__ 2010. All rights reserved. // #import "MainViewController.h" #import "MainView.h" @implementation MainViewController @synthesize webView; @synthesize spinner; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Custom initialization } return self; } // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { NSURL *siteURL; NSString *siteURLString; siteURLString=[[NSString alloc] initWithString:@"http://www.site.com"]; siteURL=[[NSURL alloc] initWithString:siteURLString]; [webView loadRequest:[NSURLRequest requestWithURL:siteURL]]; [siteURL release]; [siteURLString release]; [super viewDidLoad]; } - (void)flipsideViewControllerDidFinish:(FlipsideViewController *)controller { [self dismissModalViewControllerAnimated:YES]; } - (void)webViewDidFinishLoad:(UIWebView *)webView { [spinner stopAnimating]; spinner.hidden=FALSE; NSLog(@"viewDidFinishLoad went through nicely"); } - (void)webViewDidStartLoad:(UIWebView *)webView { [spinner startAnimating]; spinner.hidden=FALSE; NSLog(@"viewDidStartLoad seems to be working"); } - (IBAction)showInfo { FlipsideViewController *controller = [[FlipsideViewController alloc] initWithNibName:@"FlipsideView" bundle:nil]; controller.delegate = self; controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:controller animated:YES]; [controller release]; } - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (void)dealloc { [spinner release]; [webView release]; [super dealloc]; } @end Unfortunately nothing is ever written to my log, and for some reason the Activity Indicator never seems to appear. What's going wrong here? Thanks folks Jack

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  • python-social-auth AuthCanceled exception

    - by vero4ka
    I'm using python-social-auth in my Django application for authentication via Facebook. But when a user tries to login and when it's been refirected to Facebook app page clicks on "Cancel" button, appears the following exception: ERROR 2014-01-03 15:32:15,308 base :: Internal Server Error: /complete/facebook/ Traceback (most recent call last): File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 114, in get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 57, in wrapped_view return view_func(*args, **kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/apps/django_app/utils.py", line 45, in wrapper return func(request, backend, *args, **kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/apps/django_app/views.py", line 21, in complete redirect_name=REDIRECT_FIELD_NAME, *args, **kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/actions.py", line 54, in do_complete *args, **kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/strategies/base.py", line 62, in complete return self.backend.auth_complete(*args, **kwargs) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/facebook.py", line 63, in auth_complete self.process_error(self.data) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/facebook.py", line 56, in process_error super(FacebookOAuth2, self).process_error(data) File "/home/vera/virtualenv/myapp/local/lib/python2.7/site-packages/social/backends/oauth.py", line 312, in process_error raise AuthCanceled(self, data.get('error_description', '')) AuthCanceled: Authentication process canceled Is the any way to catch it Django?

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  • create app that has plugin which contains PyQt widget

    - by brian
    I'm writing an application that will use plugins. In the plugin I want to include a widget that allows the options for that plugin to be setup. The plugin will also include methods to operate on the data. What is is the best way to include a widget in a plugin? Below is pseudo code for what I've tried to do. My original plan was to make the options widget: class myOptionsWidget(QWidget): “”” create widget for plug in options “”” …. Next I planned on including the widget in my plugin: class myPlugin def __init__(self): self.optionWidget = myOptionsWidget() self.pluginNum = 1 …. def getOptionWidget(self): return(self.optionWidget) Then at the top level I'd do something like a = myPlugin() form = createForm(option=a.getOptionWidget()) … where createForm would create the form and include my plugin options widget. But when I try "a = myPlugin()" I get the error "QWidget: Must construct a QApplication before a QpaintDevice" so this method won't work. I know I would store the widget as a string and call eval on it but I'd rather not do that in case later on I want to convert the program to C++. What is the best way to write a plugin that includes a widget that has the options? Brian

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  • Testing MPMoviePlayerViewController in iPad simulator

    - by hgpc
    I have a view that shows a MPMoviePlayerViewController modally. When testing it in the iPad simulator it works well on the first try. If I dismiss the video and then show the view again, the player only plays the audio, but not the video. Is this a simulator quirk or am I doing something wrong? Here's my code: - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; MPMoviePlayerViewController* v = [[MPMoviePlayerViewController alloc] initWithContentURL:url]; [[NSNotificationCenter defaultCenter] addObserver:self selector: @selector(playbackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:v.moviePlayer]; [self presentMoviePlayerViewControllerAnimated:v]; [v release]; } -(void) playbackDidFinish:(NSNotification*)aNotification { MPMoviePlayerController *player = [aNotification object]; [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:player]; [player stop]; [self dismissMoviePlayerViewControllerAnimated]; }

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  • Avoiding EXC_BAD_ACCESS when using the delegate pattern

    - by Kenny Winker
    A have a view controller, and it creates a "downloader" object, which has a reference to the view controller (as a delegate). The downloader calls back the view controller if it successfully downloads the item. This works fine as long as you stay on the view, but if you navigate away before the download is complete I get EXC_BAD_ACCESS. I understand why this is happening, but is there any way to check if an object is still allocated? I tried to test using delegate != nil, and [delegate respondsToSelector:], but it chokes. if (!self.delegate || ![self.delegate respondsToSelector:@selector(downloadComplete:)]) { // delegate is gone, go away quietly [self autorelease]; return; } else { // delegate is still around [self.delegate downloadComplete:result]; } I know I could, a) have the downloader objects retain the view controller b) keep an array of downloaders in the view controller, and set their delegate values to nil when I deallocate the view controller. But I wonder if there is an easier way, where I just test if the delegate address contains a valid object?

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  • How can I pass latitude and longitude values from UIViewController to MKMapView?

    - by jerincbus
    I have a detail view that includes three UIButtons, each of which pushes a different view on to the stack. One of the buttons is connected to a MKMapView. When that button is pushed I need to send the latitude and longitude variables from the detail view to the map view. I'm trying to add the string declaration in the IBAction: - (IBAction)goToMapView { MapViewController *mapController = [[MapViewController alloc] initWithNibName:@"MapViewController" bundle:nil]; mapController.mapAddress = self.address; mapController.mapTitle = self.Title; mapController.mapLat = self.lat; mapController.mapLng = self.lng; //Push the new view on the stack [[self navigationController] pushViewController:mapController animated:YES]; [mapController release]; //mapController = nil; } And on my MapViewController.h file I have: #import <UIKit/UIKit.h> #import <MapKit/MapKit.h> #import "DetailViewController.h" #import "CourseAnnotation.h" @class CourseAnnotation; @interface MapViewController : UIViewController <MKMapViewDelegate> { IBOutlet MKMapView *mapView; NSString *mapAddress; NSString *mapTitle; NSNumber *mapLat; NSNumber *mapLng; } @property (nonatomic, retain) IBOutlet MKMapView *mapView; @property (nonatomic, retain) NSString *mapAddress; @property (nonatomic, retain) NSString *mapTitle; @property (nonatomic, retain) NSNumber *mapLat; @property (nonatomic, retain) NSNumber *mapLng; @end And on the pertinent parts of the MapViewController.m file I have: @synthesize mapView, mapAddress, mapTitle, mapLat, mapLng; - (void)viewDidLoad { [super viewDidLoad]; [mapView setMapType:MKMapTypeStandard]; [mapView setZoomEnabled:YES]; [mapView setScrollEnabled:YES]; MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } }; region.center.latitude = mapLat; //40.105085; region.center.longitude = mapLng; //-83.005237; region.span.longitudeDelta = 0.01f; region.span.latitudeDelta = 0.01f; [mapView setRegion:region animated:YES]; [mapView setDelegate:self]; CourseAnnotation *ann = [[CourseAnnotation alloc] init]; ann.title = mapTitle; ann.subtitle = mapAddress; ann.coordinate = region.center; [mapView addAnnotation:ann]; } But I get this when I try to build: 'error: incompatible types in assignment' for both lat and lng variables. So my questions are am I going about passing the variables from one view to another the right way? And does the MKMapView accept latitude and longitude as a string or a number?

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  • Call child's method or cast parent to child in Rails

    - by Brian
    I have some STI structure like following: class Box has_many :part,:class_name = "Part" end class Part def self.dosomething() end end class TypeA<Part def self.dosomething() end end class TypeB<Part def self.dosomething() end end assuming we have some codes like boxtypeA = Box.new. I am wondering if there is a way to make boxtypeA.part.dosomething() to call TypeA's method not Part's or TypeB's. I think basically what we need to do is to convert the part to TypeA, how can we achieve that? Thx in advance!

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  • Removing a fields from a dynamic ModelForm

    - by Jérôme Pigeot
    In a ModelForm, i have to test user permissions to let them filling the right fields : It is defined like this: class TitleForm(ModelForm): def __init__(self, user, *args, **kwargs): super(TitleForm,self).__init__(*args, **kwargs) choices = [] # company if user.has_perm("myapp.perm_company"): self.fields['company'] = forms.ModelChoiceField(widget=forms.HiddenInput(), queryset=Company.objects.all(), required=False) choices.append('Company') # association if user.has_perm("myapp.perm_association") self.fields['association'] = forms.ModelChoiceField(widget=forms.HiddenInput(), queryset=Association.objects.all(), required=False) choices.append('Association') # choices self.fields['type_resource'] = forms.ChoiceField(choices = choices) class Meta: Model = Title This ModelForm does the work : i hide each field on the template and make them appearing thanks to javascript... The problem is this ModelForm is that each field defined in the model will be displayed on the template. I would like to remove them from the form if they are not needed: exemple : if the user has no right on the model Company, it won't be used it in the rendered form in the template. The problem of that is you have to put the list of fields in the Meta class of the form with fields or exclude attribute, but i don't know how to manage them dynamically. Any Idea?? Thanks by advance for any answer.

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  • problem with reload data from table view after come back from another view

    - by user129677
    I have a problem in my application. Any help will be greatly appreciated. Basically it is from view A to view B, and then come back from view B. In the view A, it has dynamic data loaded in from the database, and display on the table view. In this page, it also has the edit button, not on the navigation bar. When user tabs the edit button, it goes to the view B, which shows the pick view. And user can make any changes in here. Once that is done, user tabs the back button on the navigation bar, it saves the changes into the NSUserDefaults, goes back to the view A by pop the view B. When coming back to the view A, it should get the new data from the UIUserDefaults, and it did. I user NSLog to print out to the console and it shows the correct data. Also it should invoke the viewWillAppear: method to get the new data for the table view, but it didn't. It even did not call the tableView:numberOfRowsInSection: method. I place a NSLog statement inside this method but didn't print out in the console. as the result, the view A still has the old data. the only way to get the new data in the view A is to stop and start the application. both view A and view B are the subclass of UIViewController, with UITableViewDelegate and UITableViewDataSource. here is my code in the view A : - (void)viewWillAppear:(BOOL)animated { NSLog(@"enter in Schedule2ViewController ..."); // load in data from database, and store into NSArray object //[self.theTableView reloadData]; [self.theTableView setNeedsDisplay]; //[self.theTableView setNeedsLayout]; } in here, the "theTableView" is a UITableView variable. And I try all three cases of "reloadData", "setNeedsDisplay", and "setNeedsLayout", but didn't seem to work. in the view B, here is the method corresponding to the back button on the navigation bar. - (void)viewDidLoad { UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(savePreference)]; self.navigationItem.leftBarButtonItem = saveButton; [saveButton release]; } - (IBAction) savePreference { NSLog(@"save preference."); // save data into the NSUSerDefaults [self.navigationController popViewControllerAnimated:YES]; } Am I doing in the right way? Or is there anything that I missed? Many thanks.

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  • Django deployment - can't import app.urls

    - by hora
    I just moved a django project to a deployment server from my dev server, and I'm having some issues deploying it. My apache config is as follows: <Location "/"> Order allow,deny Allow from all SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE project.settings PythonDebug On PythonPath "['/home/django/'] + sys.path" </Location> Django does work, since it renders the Django debug views, but I get the following error: ImportError at / No module named app.urls And here is all the information Django gives me: Request Method: GET Request URL: http://myserver.com/ Django Version: 1.1.1 Python Version: 2.6.5 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.admin', 'django.contrib.admindocs', 'project.app'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware') Traceback: File "/usr/lib64/python2.6/site-packages/django/core/handlers/base.py" in get_response 83. request.path_info) File "/usr/lib64/python2.6/site-packages/django/core/urlresolvers.py" in resolve 218. sub_match = pattern.resolve(new_path) File "/usr/lib64/python2.6/site-packages/django/core/urlresolvers.py" in resolve 216. for pattern in self.url_patterns: File "/usr/lib64/python2.6/site-packages/django/core/urlresolvers.py" in _get_url_patterns 245. patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) File "/usr/lib64/python2.6/site-packages/django/core/urlresolvers.py" in _get_urlconf_module 240. self._urlconf_module = import_module(self.urlconf_name) File "/usr/lib64/python2.6/site-packages/django/utils/importlib.py" in import_module 35. __import__(name) Exception Type: ImportError at / Exception Value: No module named app.urls Any ideas as to why I get an import error?

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  • How can I pop a view from a UINavigationController and replace it with another in one operation?

    - by Matt Brandt
    I have an application where I need to remove one view from the stack of a UINavigationController and replace it with another. The situation is that the first view creates an editable item and then replaces itself with an editor for the item. When I do the obvious solution within the first view: MyEditViewController *mevc = [[MYEditViewController alloc] initWithGizmo: gizmo]; [self retain]; [self.navigationController popViewControllerAnimated: NO]; [self.navigationController pushViewController: mevc animated: YES]; [self release]; I get very strange behavior. Usually the editor view will appear, but if I try to use the back button on the nav bar I get extra screens, some blank, and some just screwed up. The title becomes random too. It is like the nav stack is completely hosed. What would be a better approach to this problem? Thanks, Matt

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  • Animate multiple UIView in a cicle

    - by Giovanni
    Hi all, i'm creating a card game on iphone. My problem is that i want to animate the cards at the beginning of the game making the cards animate from a point to another point in a deck. I move my cards that are UIView, in afor cicle. this is what i do With this code, alla tha cards move together, i need to move the cards separately one after another CGPoint point; // Create the deck of playing cards for (int i = 0; i < 28; i++) { CardView *aCardView = [self.mazzo objectAtIndex:i]; point.x = -100; point.y = 200; aCardView.center = point; aCardView.zPosition = i; [self.viewGioco addSubview:aCardView]; [aCardView release]; //Here i call the method to position the card [aCardView positionCard]; } in the card view there are this methods -(void)positionCard{ [self performSelector:@selector(_positionCard) withObject:nil afterDelay:0.0]; } -(void)_positionCard{ [UIView beginAnimations:@"posizionacarta" context:nil]; [UIView setAnimationCurve:UIViewAnimationCurveEaseIn]; [UIView setAnimationDuration:0.3f]; CGPoint point; point.x = 280 + ((arc4random() % 2) - 1); point.y = 240 + ((arc4random() % 2) - 1); self.center = point; [UIView commitAnimations]; [self setNeedsLayout]; }

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  • TableView frame not resizing properly when pushing a new view controller and the keyboard is hiding

    - by Pete
    Hi, I must be missing something fundamental here. I have a UITableView inside of a NavigationViewController. When a table row is selected in the UITableView (using tableView:didSelectRowAtIndexPath:) I call pushViewController to display a different view controller. The new view controller appears correctly, but when I pop that view controller and return the UITableView is resized as if the keyboard was being displayed. I need to find a way to have the keyboard hide before I push the view controller so that the frame is restored correctly. If I comment out the code to push the view controller then the keyboard hides correctly and the frame resizes correctly. The code I use to show the keyboard is as follows: - (void) keyboardDidShowNotification:(NSNotification *)inNotification { NSLog(@"Keyboard Show"); if (keyboardVisible) return; // We now resize the view accordingly to accomodate the keyboard being visible keyboardVisible = YES; CGRect bounds = [[[inNotification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue]; bounds = [self.view convertRect:bounds fromView:nil]; CGRect tableFrame = tableViewNewEntry.frame; tableFrame.size.height -= bounds.size.height; // subtract the keyboard height if (self.tabBarController != nil) { tableFrame.size.height += 48; // add the tab bar height } [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(shrinkDidEnd:finished:contextInfo:)]; tableViewNewEntry.frame = tableFrame; [UIView commitAnimations]; } The keyboard is hidden using: - (void) keyboardWillHideNotification:(NSNotification *)inNotification { if (!keyboardVisible) return; NSLog(@"Keyboard Hide"); keyboardVisible = FALSE; CGRect bounds = [[[inNotification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue]; bounds = [self.view convertRect:bounds fromView:nil]; CGRect tableFrame = tableViewNewEntry.frame; tableFrame.size.height += bounds.size.height; // add the keyboard height if (self.tabBarController != nil) { tableFrame.size.height -= 48; // subtract the tab bar height } tableViewNewEntry.frame = tableFrame; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(_shrinkDidEnd:finished:contextInfo:)]; tableViewNewEntry.frame = tableFrame; [UIView commitAnimations]; [tableViewNewEntry scrollToNearestSelectedRowAtScrollPosition:UITableViewScrollPositionMiddle animated:YES]; NSLog(@"Keyboard Hide Finished"); } I trigger the keyboard being hidden by resigning first responser for any control that is the first responder in ViewWillDisappear. I have added NSLog statements and see things happening in the log file as follows: Show Keyboard ViewWillDisappear: Hiding Keyboard Hide Keyboard Keyboard Hide Finished PushViewController (an NSLog entry at the point I push the new view controller) From this trace, I can see things happening in the right order, but It seems like when the view controller is pushed that the keyboard hide code does not execute properly. Any ideas would be really appreciated. I have been banging my head against the keyboard for a while trying to find out what I am doing wrong.

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  • Django Form Preview

    - by Mark Kecko
    I'm trying to use django's FormPreview and I can't get it to work properly. Here's my code: forms.py class MyForm(forms.ModelForm): status = forms.TypedChoiceField( coerce=int, choices=LIST_STATUS, label="type", widget=forms.RadioSelect ) description = forms.CharField(widget = forms.Textarea) stage = forms.CharField() def __init__(self, useradd=None, *args, **kwargs): super(MyForm, self).__init__(*args, **kwargs) self.fields['firm'].label = "Firm" class Meta: model = MyModel fields = ['status', 'description', 'stage'] class MyFormPreview(FormPreview): form_template = 'templates/post.html' preview_template = 'templates/review.html' def process_preview(self, request, cleaned_data): print "processed" def done(self, request, cleaned_data): print "done" # Do something with the cleaned_data, then redirect # to a "success" page. return HttpResponseRedirect('/') urls.py (r'^post/$', MyFormPreview(MyForm)), post.html <form id = "post_ad" action = "" method = "POST" enctype="multipart/form-data"> <table> {{form.as_table}} </table> <input type="submit" name="save" value="Post" /> </form> When I go to /post/ I get the correct form and I fill it out. When I submit the form it goes right back to /post/ but but there are no errors (I've tried displaying {{errors}}) and the form is empty. None of my print statements execute. I'm not sure what I'm missing. Can anyone help me out? I can't find any documentation besides what's on the django site. Also, what's the "preview" variable called that I should use in my preview.html template? {{preview}} or do I just do {{form}} again? -- Answered below. I tried adding 'django.contrib.formtools' to my installed_apps in settings and I tried using the code from the default form templates from django.contrib as suggested below. Still, when I submit the form I go right back to the post template, none of my print statements execute :(

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  • Why don't these class attributes register?

    - by slypete
    I have a factory method that generates django form classes like so: def get_indicator_form(indicator, patient): class IndicatorForm(forms.Form): #These don't work! indicator_id = forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput()) patient_id = forms.IntegerField(initial=patient.id, widget=forms.HiddenInput()) def __init__(self, *args, **kwargs): forms.Form.__init__(self, *args, **kwargs) self.indicator = indicator self.patient = patient #These do! setattr(IndicatorForm, 'indicator_id', forms.IntegerField(initial=indicator.id, widget=forms.HiddenInput())) setattr(IndicatorForm, 'patient_id', forms.IntegerField(initial=patient.id, widget=forms.HiddenInput())) for field in indicator.indicatorfield_set.all(): setattr(IndicatorForm, field.name, copy(field.get_field_type())) return type('IndicatorForm', (forms.Form,), dict(IndicatorForm.__dict__)) I'm trying to understand why the top form field declarations don't work, but the setattr method below does work. I'm fairly new to python, so I suspect it's some language feature that I'm misunderstanding. Can you help me understand why the field declarations at the top of the class don't add the fields to the class? In a possibly related note, when these classes are instantiated, instance.media returns nothing even though some fields have widgets with associated media. Thanks, Pete

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  • python Socket.IO client for sending broadcast messages to TornadIO2 server

    - by Alp
    I am building a realtime web application. I want to be able to send broadcast messages from the server-side implementation of my python application. Here is the setup: socketio.js on the client-side TornadIO2 server as Socket.IO server python on the server-side (Django framework) I can succesfully send socket.io messages from the client to the server. The server handles these and can send a response. In the following i will describe how i did that. Current Setup and Code First, we need to define a Connection which handles socket.io events: class BaseConnection(tornadio2.SocketConnection): def on_message(self, message): pass # will be run if client uses socket.emit('connect', username) @event def connect(self, username): # send answer to client which will be handled by socket.on('log', function) self.emit('log', 'hello ' + username) Starting the server is done by a Django management custom method: class Command(BaseCommand): args = '' help = 'Starts the TornadIO2 server for handling socket.io connections' def handle(self, *args, **kwargs): autoreload.main(self.run, args, kwargs) def run(self, *args, **kwargs): port = settings.SOCKETIO_PORT router = tornadio2.TornadioRouter(BaseConnection) application = tornado.web.Application( router.urls, socket_io_port = port ) print 'Starting socket.io server on port %s' % port server = SocketServer(application) Very well, the server runs now. Let's add the client code: <script type="text/javascript"> var sio = io.connect('localhost:9000'); sio.on('connect', function(data) { console.log('connected'); sio.emit('connect', '{{ user.username }}'); }); sio.on('log', function(data) { console.log("log: " + data); }); </script> Obviously, {{ user.username }} will be replaced by the username of the currently logged in user, in this example the username is "alp". Now, every time the page gets refreshed, the console output is: connected log: hello alp Therefore, invoking messages and sending responses works. But now comes the tricky part. Problems The response "hello alp" is sent only to the invoker of the socket.io message. I want to broadcast a message to all connected clients, so that they can be informed in realtime if a new user joins the party (for example in a chat application). So, here are my questions: How can i send a broadcast message to all connected clients? How can i send a broadcast message to multiple connected clients that are subscribed on a specific channel? How can i send a broadcast message anywhere in my python code (outside of the BaseConnection class)? Would this require some sort of Socket.IO client for python or is this builtin with TornadIO2? All these broadcasts should be done in a reliable way, so i guess websockets are the best choice. But i am open to all good solutions.

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  • UIImagePickerController causing sqlite errors (Simulator only)

    - by MrHen
    When I display a UIImagePickerController in a UIPopoverController the console outputs the following warnings: sqlite error 8 [attempt to write a readonly database] sqlite error 8 [attempt to write a readonly database] sqlite error 8 [attempt to write a readonly database] sqlite error 1 [no such column: duration] sqlite error 1 [no such column: duration] sqlite error 8 [attempt to write a readonly database] sqlite error 8 [attempt to write a readonly database] sqlite error 8 [attempt to write a readonly database] Here is the code that displays the picker: - (void)openImagePickerController:(id)sender { //TODO only open one at a time UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init]; //imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; imagePicker.delegate = self; [self presentViewController:imagePicker sender:sender animated:YES modal:YES]; [imagePicker release]; } - (void)presentViewController:(UIViewController *)vc sender:(id)sender animated:(BOOL)animated modal:(BOOL)modal { BOOL useNavController = NO; //if((void *)UI_USER_INTERFACE_IDIOM() != NULL && if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { //are we on an iPad? Class popoverClass = NSClassFromString(@"UIPopoverController"); if(!popoverClass) { useNavController = YES; } else { if(currentPopover == nil || currentPopover.contentViewController != vc) { if(currentPopover != nil) { [currentPopover dismissPopoverAnimated:animated]; [currentPopover.delegate popoverControllerDidDismissPopover:currentPopover]; } UIPopoverController *popover = [[popoverClass alloc] initWithContentViewController:vc]; currentPopover = popover; currentPopover.delegate = self; [popover presentPopoverFromBarButtonItem:sender permittedArrowDirections:UIPopoverArrowDirectionAny animated:animated]; } } //[aPopover release]; } else { useNavController = YES; } if(useNavController) { if(modal) { [self presentModalViewController:vc animated:animated]; } else { [self.view addSubview:vc.view]; } } } Stepping with the debugger shows that the errors occur after [UIPopoverController presentPopoverFromBarButtonItem:permittedArrowDirections:animated: runs. Of note: The program continues running just fine No noticeable weirdness in UIImagePickerController's behavior when selecting an image or canceling Happens in Simulator 3.2 Unable to reproduce on iPad running 3.2 Is this just another simulator bug?

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  • can create a new thread on goog-app-engine ..(python)

    - by zjm1126
    i use this code can crteate ,but someone say it can't create ,why ? class LogText(db.Model): content = db.StringProperty(multiline=True) class MyThread(threading.Thread): def __init__(self,threadname): threading.Thread.__init__(self, name=threadname) def run(self,request): log=LogText() log.content=request.POST.get('content',None) log.put() def Log(request): thr = MyThread('haha') thr.run(request) return HttpResponse('')

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