observers

I have some code in the checkout where I set a key in the session if that key is set to false anywhere in the checkout I need to send them back to the billing page. I have the code for it, but I also can't have any of the code that is typically ran after the observer because it will call a third party service and come back as wrong because of this key that is missing in the session Here is my code, I have everything I want but i need the response to happen immediatly and for nothing after the dispatched event line to be fired only the response sent back to the browser. public function

I'm trying to get the UITextViewTextDidChangeNotification to work. I'm new to using the NSNotificationCenter, so I'm having a hard time understanding what's going on exactly. I have a UITextView in a storyboard, and I've created an IBOutlet for it in my ViewController class and called it textView. This is my viewDidLoad function: override func viewDidLoad() { super.viewDidLoad() origin = self.view.frame.origin.y if let field = textView{ field.placeholder = placeholder field.layer.cornerRadius = 8 field.layer.borderWidth = 0.5 field.layer.borderColor = UIColor.grayColor().CGColor

I am working on site where i want to add/subtract fee to cart total and grand total.I am firing this event to capture the cart details. sales_order_save_after . while in observer i got the price using this code public function modifyPrice(Varien_Event_Observer $obs) { $getotal = Mage::helper('checkout')->getQuote()->getGrandTotal(); $totals = Mage::getSingleton('checkout/session')->getQuote()->getTotals(); $subtotal = $totals["subtotal"]->getValue(); }. But i don't know how to add/subtract amount from total and than update accordingly.Thanks in advance Rehman, i am afraid this is not a

I need guidance in creating a file observer in Xamarin c# (Android) Some sort of workable example would be wonderful ! I've tried to convert the java ones over to C# but due to my lack on experience in the C# environment, it's throwing too many errors when being compiled .. and getting the write reference code within C# vs java is proving irritating .. So PLEASE !, may someone out there point me to some sort of workable This is a java example of a file observer https://gist.github.com/shirou/659180 Create a class that inherits from Android.OS.FileObserver , you only need to implement the

When using a separate class for a model observer, where exactly should I register the observer? The documentation says to call User::observe(new UserObserver); but I’m not sure where the best place to do this would be. https://laravel.com/docs/5.4/eloquent#observers Since an observer is just a collection of events you are listening to, I'd say place it where Laravel suggests you place individual events: on the boot method of the model itself. class User extends Eloquent { public static function boot() { parent::boot(); User::observe(new UserObserver); } } Where to put the UserObserver class is

How do I remove the observer after I receive the first result? Below are two code ways I've tried, but they both keep receiving updates even though I have removed the observer. Observer observer = new Observer<DownloadItem>() { @Override public void onChanged(@Nullable DownloadItem downloadItem) { if(downloadItem!= null) { DownloadManager.this.downloadManagerListener.onDownloadManagerFailed(null, "this item already exists"); return; } startDownload(); model.getDownloadByContentId(contentId).removeObservers((AppCompatActivity)context); } }; model.getDownloadByContentId(contentId).observeForever

Documentation says you need to call observeEventType:withBlock to remove an observer if you no longer need it. I've seen samples where it is called within ViewDidDisAppear . I also find some Obj-C code called this method within deinit , which is not ncessary in Swift. In my simple app, however, I want data to be synced as long as I am in the app. If this is the case, do I have to call observeEventType:withBlock ever? I checked the Chat-Swift sample code on Firebase website, and did not find observeEventType:withBlock . Does it mean it's ok not to call observeEventType:withBlock :. if I want