ember.js

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago . Having started learning Ember, I get confused whenever there is a reference to Promise Object. I am aware of objects e.g. instance of class X or a JSON object. For instance, when somebody says that method m returns a JSON object then I know to expect key-value pairs. How do I

问题 Is there any way to pass a variable context to the {{render}} helper? For instance, I have a polymorphic relationship on my model, and I want to render the appropriate view for each different type (without have to write a whole string of if statements. my events template looks like this: <ul> {{#each event in model}} <li> {{event.time}} {{render event.type event.eventable}} </li> {{/each}} </ul> the event.type is a string and is set to song . If I use {{render 'song' event.eventable}}

问题 I have a route main which has a query param search . I have subroutes main.sub1 , main.sub2 Going to /main/sub1?search=hello or /main/sub2?search=hello sets the query param of the main route to hello . This part works fine. Now I would like to be able to refresh the model of main.sub1 when the query param search in route main changes, so I here is the code of the route main.sub1 : export default Ember.Route.extend({ queryParams: { search: { refreshModel: true } }, model(params) { // here I

问题 I have a collection of objects (MyApp.instrsController, an ArrayController) and each object has a property called 'action' (a float number), how can I display it using the handlebars template? Below is the code I've tried: <ul> {{#each MyApp.instrsController}} <li>{{action}}</li> {{/each}} </ul> But since 'action' is a 'keyword', it throws javascript runtime error 'options is undefined'. Thanks in advanced. 回答1: You can manually specify that you're looking for a property in the current

问题 I'm trying to figure out how to use this._super when the Ember's object method is called from a callback. I know that I could assign var _super = this._super before the callback is called but I don't like it. I want to have the this object containing proper _super method inside the callback. My code is here: http://emberjs.jsbin.com/hasehija/6/edit. App.BaseMixin = Ember.Mixin.create({ init: function() { console.log("base"); } }); App.Utils = Ember.Object.extend({ callbackMethod: function

问题 This official guide describes how you can bind a boolean property to disabled attribute of a HTML element. Yet it talks about a controller. I have a button, that when clicked transitions the route (sorry it has to be a button and cannot be a link-to): /templates/trails.hbs <button type="button" class="btn btn-primary" disabled={{isEditing}} onclick={{route-action 'addNew'}}>Add New</button> (route-action is a helper that allows me to use closure actions in routes) /routes/trails.js import

问题 I hope this is not duplicate question, but I am not able to find solution... I have Jobs and Users, one user has many jobs: JP.User = DS.Model.extend({ firstName: DS.attr('string'), lastName: DS.attr('string'), email: DS.attr('string'), jobs: DS.hasMany("JP.Job") }); I am inserting data in user_dashboard.handlebar: {{#each job in jobs}} <li> {{job.shortDescription}}<br /> {{job.startsAt}}</li> {{/each}} This is my route: JP.DashboardRoute = Ember.Route.extend({ setupController: function

问题 Hi there and thank you for clicking my question. I have just upgraded my application to the latest ember-cli release ( 2.3.0-beta.1 ) and now one (or more) of my templates messed with the build. What coming next seems like a trivial issue, yet I never fully got around to it very well, so I'm finally asking. As the title suggests, I previously had <script> tags in my templates for minor things, such as a small jQuery conditional append() or anything doable by 2 or 3 lines of code. I never

问题 I've got a controller method that takes a string argument so I can test if a user has a capability. The user has many roles and the roles has an array of permissions attached that we need to check if it contains the capability. I know this is overly verbose, but for the sake of understanding, I've left it so. Will refactor later... App.WorkspaceIndexController = Ember.Controller.extend({ userCan: function(capability) { var userHasCapability = false; var userPromise = this.get('session.user');

问题 In my ember app I have a models: App.Schedule = DS.Model.extend({ manager:DS.belongsTo('App.Manager', { embedded: true }), entries:DS.hasMany('App.Reservation', { embedded: true }) }); App.Reservation = DS.Model.extend({ name:DS.attr('string') }); and a handelbars view: {{#each schedule in controller}} <td> {{#each reservation in schedule.entries)}} <div>{{reservation.name}}</div> {{/each}} </td> {{/each}} But with this view a've got exception Expecting 'ID', got 'undefined' This workaround