observers

问题 jsFiddle: https://jsfiddle.net/ghstahl/09tL1ku7/ <script src="https://cdn.rawgit.com/download/polymer-cdn/1.1.3/lib/webcomponentsjs/webcomponents-lite.js"></script> <link rel="import" href="https://cdn.rawgit.com/download/polymer-cdn/1.1.3/lib/polymer/polymer.html"> <link rel="import" href="https://cdn.rawgit.com/download/polymer-cdn/1.1.3/lib/paper-styles/paper-styles.html"> <link rel="import" href="https://cdn.rawgit.com/download/polymer-cdn/1.1.3/lib/paper-styles/color.html"> <link rel=

问题 I have added notification observer for UIMenuControllerWillHideMenu but it does not call selector added/associated with notification center. UIMenuControllerWillHideMenu is notification center identifier for UIMenuController and should be called when UIMenuController will hide. But somehow it's not working. Here is code I've tried (Swift 3.x): private func addMenuObserverNotification(){ NotificationCenter.default.addObserver(self, selector: #selector(self.menuControllerWillHideMenu), name:

问题 There is a parent element. One of its property is an array of objects. This array is initialised in the ready function. The display of this array is handed down to a child element. What I want to do is to update the quantity of each element in the array whenever the multiplier property changed. I tried to use the override dirty checking technique described in the docs but couldn't get it to work. I would appreciate some guidance. [plunker link][1] [1]: http://plnkr.co/edit

问题 I set an observer on to catch all polymer recognized events on an property that is an array, but I catch get it to catch the change. In my example below my observer function "bigup" only gets called on when the property, "bigs" is first initialzed. <dom-module id="parent-page"> <template> <paper-button on-click="updateAll">Update</paper-button> </template> <script> var temp=[]; temp.push({'conversation':[{'message':'hello'}]}); Polymer({ is: 'parent-page', properties: { bigs: { type: Array,

问题 Im trying to implement a simple message observer on Mule that don't need to mutate the message. This link on the documentation says that the easiest way is to extend the AbstractMessageObserver. But as i can see on this link the class has been removed in the earlier versions of Mule. So, the best way to do this now is implementing the MessageProcessor interface and simply return the MuleEvent param in the process method? 回答1: If you need to access the whole MuleEvent , either a

问题 Im trying to implement a simple message observer on Mule that don't need to mutate the message. This link on the documentation says that the easiest way is to extend the AbstractMessageObserver. But as i can see on this link the class has been removed in the earlier versions of Mule. So, the best way to do this now is implementing the MessageProcessor interface and simply return the MuleEvent param in the process method? 回答1: If you need to access the whole MuleEvent , either a

问题 I am trying to send the value of a JavaScript variable from ui.R to Server.R whenever it is changed. When a user clicks on a link, its href value is alerted . Till here it works fine. The links are of the form <a href="something.com" onclick=\"clickFunction(this.href); return false;\" target=\"_blank\">Sample link </a> Now, the href value is stored in variable link in ui.R . I am sending the value of link to server.R using Shiny.onInputChange function. But the observe function in server.R is

问题 I have a var declared in a class like so: @NSManaged var isFavorite: Bool I would like to declare a property observer, very similar to the one below. var organization: String { didSet { postNotificationWithName( "newData" ) } } However, Swift tells me that having property observers on NSManaged vars is not allowed. Is there any way I can implement such a feature or something similar for my isFavorite variable? 回答1: Yes-- delete the @NSManaged . It's not absolutely required, but if you delete

问题 when i try to write the observer for the checkout_type_onepage_save_order event like following <events> <checkout_type_onepage_save_order> <observers> <Appeal_Consignor_Model_Observer> <type>singleton</type> <class>consignor/observer</class> <method>savedata</method> </Appeal_Consignor_Model_Observer> </observers> </checkout_type_onepage_save_order> </events> above code i tried in frontend as well as global . Even i tried following as well. <events> <checkout_type_onepage_save_order>

问题 I've got a observer that has a update method: ObserverServiceProvider.php public function boot() { Relation::observe(RelationObserver::class); } RelationObserver.php public function updated(Relation $relation) { $this->cache->tags(Relation::class)->flush(); } So when I update a relation in my controller: public function update(Request $request, Relation $relation) { $relation->update($request->all())); return back(); } Everything is working as expected. But now I've got a pivot table. A