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  • Rails migration won't run, no error thrown

    - by kouak
    Here's a simple migration I'd like to run : class AddTimeOfRevisionToBrandWikis < ActiveRecord::Migration def self.up add_column :brand_wikis, :time_of_revision, :datetime end def self.down remove_column :brand_wikis, :time_of_revision end end Here's what I get when I try to run it : $ rake db:migrate (in /Users/kouak/Documents/workspace/wtb) You have 1 pending migrations: 20100404115341 AddTimeOfRevisionToBrandWikis Run "rake db:migrate" to update your database then try again. What's wrong with rake db:migrate ?

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  • Javascript scope problem with object and setTimeout

    - by Shabbyrobe
    I'm trying to make a jQuery plugin that executes a method on a timer. I'd like it to work on multiple elements on a page independently. I've reached a point where the timer executes for each element, but the method called in the setTimeout seems to only know about the last instance of the plugin. I know I'm doing something fundamentally stupid here, but I'm danged if I know what. I know stuff like this has been asked 8 million times on here before, but I've not managed to find an answer that relates to my specific problem. Here's a script that demonstrates the structure of what I'm doing. <html> <head> <script type="text/javascript" src="assets/jquery.min.js"></script> <script type="text/javascript"> var crap = 0; (function($) { jQuery.fn.pants = function(options) { var trousers = { id: null, current: 0, waitTimeMs: 1000, begin: function() { var d = new Date(); this.id = crap++; console.log(this.id); // do a bunch of stuff window.setTimeout(function(self) {return function() {self.next();}}(this), this.waitTimeMs); }, next: function() { this.current ++; console.log(this.id); window.setTimeout(function(self) {return function() {self.next();}}(this), this.waitTimeMs); }, }; options = options || {}; $.extend(trousers, options); this.each(function(index, element) { trousers.begin(); }); return this; }; } )(jQuery); jQuery(document).ready(function() { jQuery("div.wahey").pants(); }); </script> </head> <body> <div class="wahey"></div> <div class="wahey"></div> </body> </html> The output I get is this: 0 1 1 1 1 1 The output I expect to get is this: 0 1 0 1 0 1

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  • Storing an subtitle on an annotation with NSUserDefualts

    - by Krismutt
    Hey everybody! Basically: what i try to do is to save the street address of an annotation so that when I quit the application and launch it again the street address still will be there...see the following code: SavePosition.m -(NSString *)subtitle{ if (!subtitle) { return @"Ingen gata i närheten"; } else { return subtitle; } } -(NSString *)title{ return @"Sparad Position"; } -(id)initWithCoordinate:(CLLocationCoordinate2D) coor{ self.coordinate=coor; NSLog(@"%f,%f",coor.latitude,coor.longitude); return self; } - (void)setCoordinate:(CLLocationCoordinate2D)koor { MKReverseGeocoder *geocoder = [[[MKReverseGeocoder alloc] initWithCoordinate:koor] autorelease]; geocoder.delegate = self; coordinate = koor; [geocoder start]; } - (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error { NSLog(@"fail %@", error); } - (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark { self.subtitle = [placemark.addressDictionary valueForKey:@"Street"]; } -(void)applicationWillTerminate:(UIApplication *)application { NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults]; [userDef setValue:subtitle forKey:@"SavedAddress"]; [userDef setBool:YES forKey:@"Street"]; [userDef synchronize]; } @end mainViewController.m -(void)viewDidLoad { [super viewDidLoad]; NSUserDefaults *userDef = [NSUserDefaults standardUserDefaults]; if ([userDef boolForKey:@"sparadKoordinat-existerar"]) { CLLocationCoordinate2D savedCoordinate; savedCoordinate.latitude = [userDef doubleForKey:@"sparadKoordinat-latitud"]; savedCoordinate.longitude = [userDef doubleForKey:@"sparadKoordinat-longitud"]; SparaPosition *position=[[SparaPosition alloc] initWithCoordinate:savedCoordinate]; [mapView addAnnotation:position]; savedPosition = savedCoordinate; raderaSparad.enabled=YES; skickaMaps.enabled=YES; mStoreLocationButton.enabled=NO; friZoom = NO; NSString *savedAddress = [[NSUserDefaults standardUserDefaults] objectForKey:@"SavedAddress"]; if (savedAddress) { savedAddress.subtitle = [userDef valueForKey:@"Street"]; // what code should I add here? } MKCoordinateRegion region; region.center.latitude = savedCoordinate.latitude; region.center.longitude= savedCoordinate.longitude; MKCoordinateSpan span; span.latitudeDelta = 0.01; span.longitudeDelta = 0.01; region.span = span; region = [mapView regionThatFits:region]; [mapView setRegion:region animated:YES]; [mapView setRegion:region animated:TRUE]; }

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  • Make dictionary from list with python

    - by prosseek
    I need to transform a list into dictionary as follows. The odd elements has the key, and even number elements has the value. x = (1,'a',2,'b',3,'c') - {1: 'a', 2: 'b', 3: 'c'} def set(self, val_): i = 0 for val in val_: if i == 0: i = 1 key = val else: i = 0 self.dict[key] = val My solution seems to long, is there a better way to get the same results?

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  • Rails - Accessing model class methods from within ActiveRecord model

    - by aaronrussell
    I have a simple standalone model that doesn't inherit from ActiveRecord or anything else, called SmsSender. As the name suggests, it delivers text messages to an SMS gateway. I also have an ActiveRecord model called SmsMessage which has an instance method called deliver: def deliver SmsSender.deliver_message(self) self.update_attributes :status => "Sent" end The above is returning uninitialized constant SmsSender. I'm sure this is dead simple, but how can I access the SmsSender class from within my model?

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  • Python ZSI : error while serializing an object ?

    - by KaluSingh Gabbar
    this is the code, I get error that it can not serialize reference (sumReq) sumReqClass = GED("http://www.some-service.com/sample", "getSumRequest").pyclass sumReq = sumReqClass() rq = GetSumSoapIn() sum._sumReqObj = sumReq rs=proxy.GetSum(rq, soapheaders=[credentials]) I get error : TypeError: bad usage, failed to serialize element reference (http://www.some-service.com/sample, getSumRequest), in: /SOAP-ENV:Body

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  • How to limit manytomanyfields on a model ?

    - by Tom
    I would like to check that I get not more than 3 relations set on a manytomanyfield. I tried on the clean method to do this : if self.tags.count()>3: raise ValidationError(_(u'You cannot add more than 3 tags')) But self.tags returns not the current updates... only saved objects. Do you have an idea to access to them ? Thanks

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  • firefox extension help

    - by Thomas
    Hi all, I am developing a firefox extension which needs to add some html on the page it runs. This element I will be writing needs to be decorated with css and also load some images. I have both the css file and the images in the plugin, but I do not know how to reference them. Do I need to insert the css file to the page I want to modify? In the css file how can I reference the images that are in the extensions? Thanks

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  • Exporting dates properly formatted on Google Appengine in Python

    - by Chris M
    I think this is right but google appengine seems to get to a certain point and cop-out; Firstly is this code actually right; and secondly is there away to skip the record if it cant output (like an ignore errors and continue)? class TrackerExporter(bulkloader.Exporter): def __init__(self): bulkloader.Exporter.__init__(self, 'SearchRec', [('__key__', lambda key:key.name(), None), ('WebSite', str, None), ('DateStamp', lambda x: datetime.datetime.strptime(x, '%d-%m-%Y').date(), None), ('IP', str, None), ('UserAgent', str, None)]) Thanks

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  • How do you use jQuery filter() on an attribute that is not a class or id

    - by Ankur
    I want to filter based on an attribute called "level". Where I have written -- something here -- I don't know what to do to reference the level attribute. If it was an id attribute I would do #idName if it was a class I would do .className. I am not sure what to do to select the level attribute. $(".myClass").filter(--something here to reference the level attribute --).remove();

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  • Object leak using "retain"

    - by Abhinav
    I have a property defined with retain attribute which I am synthesizing: @property (nonatomic, retain) UISwitch *mySwitch; And inside my loadView I am doing this: self.mySwitch = [[UISwitch alloc] initWithFrame:CGRectMake(0, 0, 40, 20)]; And finally inside my dealloc I am doing this: self.mySwitch = nil; Am I leaking this object (mySwitch) as I have used one alloc? Should I autorelease it while assigning it frame? Please suggest.

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  • iPhone - Switch Tab from UIWebView

    - by user269737
    I have a webview and I want to manually switch to another tab during a specific event. The event is arbitray, but I can't figure out hwo to switch teh tab. On my other views, I have the following code: self.tabBarController.selectedViewController = [self.tabBarController.viewControllers objectAtIndex:2]; However, this does not work in my custom UIWebView class. Is there a simple solution to this? Thanks

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  • Visual Studio C#: Why is a "using" directive insufficient for some libraries?

    - by JYelton
    Scenario: I needed to add HttpUtility to my project, and I started by adding "using System.Web" to my collection of using directives. However the HttpUtility class would still not resolve, and I discovered (via this question) that I needed to add a reference to my project. Question: Why do I need to add a reference to this library when for most other classes a "using" directive will suffice?

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  • Unit testing MVC.net Redirection

    - by Dan
    How do I Unit Test a MVC redirection? public ActionResult Create(Product product) { _productTask.Save(product); return RedirectToAction("Success"); } public ActionResult Success() { return View(); } Is Ayende's approach still the best way to go, with preview 5: public static void RenderView(this Controller self, string action) { typeof(Controller).GetMethod("RenderView").Invoke(self,new object[] { action} ); } Seems odd to have to do this, especially as the MVC team have said they are writing the framework to be testable.

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  • How can I check for missing references in VB.NET?

    - by Tea With Cookies
    I need to check if all the references in a project exist to avoid possible errors but I can't find anywhere how to do it in VB.NET. I can do it in VBA like this: Dim vbProj As VBProject Dim chkRef As Reference Set vbProj = ThisWorkbook.VBProject For Each chkRef In vbProj.References If chkRef.IsBroken Then Debug.Print chkRef.Name " reference doesn't exist!" End If Next How do I accomplish this in VB.NET?

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  • UINavigationBar Background Image Problem

    - by tobi
    i have set my navigationbar background with this code in my App delegate: @implementation UINavigationBar (UINavigationBarCategory) - (void)drawRect:(CGRect)rect { UIImage *backgroundImage = [UIImage imageNamed: @"Nav-rightpane.png"]; CGContextDrawImage(UIGraphicsGetCurrentContext(), CGRectMake(0, 0, self.frame.size.width, self.frame.size.height), backgroundImage.CGImage); } @end This works perfect but now i must change the background to the default at UIPopoverController. Any idea for this? Thanks

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  • When I run cxxtest I get this error that I dont underdstand?

    - by user299648
    ./cxxtest/cxxtestgen.py -o tests.cpp --error-printer DrawTestSuite.h g++ -I./cxxtest/ -c tests.cpp g++ -o tests tests.o Color.o tests.o: In function DrawTestSuite::testLinewidthOne()': tests.cpp:(.text._ZN13DrawTestSuite16t… undefined reference toLinewidth::Linewidth(double)' tests.cpp:(.text._ZN13DrawTestSuite16t… undefined reference to `Linewidth::draw(std::basic_ostream &)' collect2: ld returned 1 exit status make: * [tests] Error 1// DrawTestSuite.h DrawTestSuite.h contains the unit-test and The test function calls on Linewidth.h to execute the constructer and member function draw I have include "Linewidth.h" in DrawTestSuite.h

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  • GetRef to capture methods?

    - by Thom Smith
    I've just discovered VBScript's GetRef function, which gets a reference to the function named by its argument. Is there any way to get a reference to a method in this way? I have a hunch that VBScript doesn't offer the sophistication of binding needed to do so, but it would sure be nice.

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  • Problem with NSMutableArray

    - by zp26
    Hi, I have a problem with NSMutableArray. In my program i have a lot of variabile "CFSocketRef". i want to save this in NSMutableArray but i can't. Can you help me? Thank and sorry for my english XP My code: CFSocketRef socketAccept; NSMutableArray *arrayIP = [[NSMutableArray alloc] init]; self.socketAccept = CFSocketCreateWithNative(NULL, fd, kCFSocketDataCallBack, AcceptDataCallback, &context); [arrayIP addObject:(id)self.socketAccept];

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  • How do I set an ABPeoplePickerNavigationController's prompt?

    - by mverzilli
    This is the code I'm using to call the people picker, but the prompt label text doesn't change: ABPeoplePickerNavigationController *picker = [[ABPeoplePickerNavigationController alloc] init]; picker.peoplePickerDelegate = self; picker.displayedProperties = [NSArray arrayWithObjects: [NSNumber numberWithInt:kABPersonEmailProperty], nil]; picker.navigationItem.prompt = @"Choose a contact to..."; [self presentModalViewController:picker animated:YES];

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  • How to return string name of calling method?

    - by keruilin
    Right now my code works as such: def method_a self.method_b ==> 'method_b' end def method_b puts self.name_of_calling_method end def name_of_calling_method if /`(.*)'/.match(caller.first) return $1 else return nil end end Instead of method_b printing 'method_b', how can I print the name of the calling method - 'method_a'?

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  • What's the best way to call an IBAction from within code?

    - by Rob
    Say for instance I have an IBAction that is hooked up to a button in interface builder. - (IBAction)functionToBeCalled:(id)sender { // do something here } Within my code, say for instance in another method, what is the best way to call that IBAction? If I try to call it like this, I receive an error: [self functionToBeCalled:]; But, if I try to call it like this (cheating a bit, I think), it works fine: [self functionToBeCalled:0]; What is the proper way to call it though?

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  • AppEngine: how do cursors work?

    - by victor a.k.a. python for ever
    hello, i have the following code def get(self): date = datetime.date.today() loc_query = Location.all() last_cursor = memcache.get('location_cursor') if last_cursor: loc_query.with_cursor(last_cursor) loc_result = loc_query.fetch(1) for loc in loc_result: self.record(loc, date) taskqueue.add( url='/task/query/simplegeo', params={'date':date, 'locid':loc.key().id()} ) if len(loc_result): memcache.add('location_cursor', loc_query.cursor()) taskqueue.add(url='/task/count/', method='GET') else: memcache.add('location_cursor', None) i don't know what i'm doing wrong, but i am getting the same cursor which is not the effect i wanted. why isn't the cursor moving?

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  • How can I dynamically hide a button from a view?

    - by jpm
    I would like to dynamically hide a button in one of my views, depending on a certain condition. I tried adding some code to the view controller's -viewWillAppear method, to make the button hidden before displaying the actual view, but I still don't know how to do that. I have a reference to the button through an IBOutlet, but I'm not sure how to move forward from here. For reference, this is a UIBarButtonItem instance.

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  • How to (simply) create new service objects in java jax-ws webservices?

    - by cibercitizen1
    Is it possible in jax-ws to have a webmethod that creates a new object (of a service class) and returns a reference to it to the client caller (for the client, it's a remote reference) so that the client and this new service object maintain a session? (Therefore each client is served by a different instance). Schematically: client server o:Session -------- -------- ---------- s = server.access() ------------------> o = new Session() return o <--- o.doSomething() ----------------------------------------------> make it <--- o.doMore() --------------------------------------------------> make it <---

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