ember-data

问题 I have instantiated the model using createRecord. Now how do I get the id of that record before it is saved ? 回答1: You can consider the generateIdForRecord http://emberjs.com/api/data/classes/DS.Adapter.html#method_generateIdForRecord If the globally unique IDs for your records should be generated on the client, implement the generateIdForRecord() method. This method will be invoked each time you create a new record, and the value returned from it will be assigned to the record's primaryKey.

问题 Individual models can be fetched with store.findRecord(modelTypeName, id); ; how can I get a list of all the possible modelTypeName s available in my app? I'm specifically trying to do this from within an app initializer. I'm using ember-cli version 1.13.8 with Ember 2.1.0 Edit : This question is somewhat of a duplicate, but it's not clear in what context he's working. It seems like introspection should be easier to achieve without hacks in an (instance) initializer where you're supposed to

问题 I am using ember and ember data in my application . How can we remove manually a record from the store in Ember . Currently i am pushing the record to store using push method . I have some issues with ember data save , so i used ajax function for save . Is there any method like record.remove()? 回答1: record.unloadRecord() or store.unloadRecord(record) , additionally you can remove all records for a type, store.unloadAll(type) 来源： https://stackoverflow.com/questions/28648200/delete-records-from

问题 According to the test implemented in ember-data, when we request child records from hasMany relationship, the store makes a get GET to child resources url and send the ids of needed child resources. test("finding many people by a list of IDs", function() { store.load(Group, { id: 1, people: [ 1, 2, 3 ] }); var group = store.find(Group, 1); equal(ajaxUrl, undefined, "no Ajax calls have been made yet"); var people = get(group, 'people'); equal(get(people, 'length'), 3, "there are three people

问题 Following this post : Ember-data resets queryParam to default value, I got another question. Can I retrieve the place where a property/queryParam changes with some kind of wizardry? I set up an observer, it effectively changes but I want to know where it is triggered. Any suggestions? 回答1: Write the observer like this to print out the stack on the console: observeFoo: function() { var error = new Error(); console.log(error.stack); }.observes('foo') Or, just put a breakpoint inside the

问题 I have the following code in ember 2.6; ember-data 2.6.1 import Ember from 'ember'; export default Ember.Route.extend({ activate() { var route = this; var sessionId = localStorage.getItem('sessionId'); if (sessionId) { localStorage.removeItem('sessionId'); this.store.findRecord('session', sessionId).then(function found(session) { session.destroyRecord(); route.transitionTo('index'); }); } else { this.transitionTo('sessions.new'); } } }); I have a logout button that has hbs template code as:

问题 I'm using Ember: 1.3.0-beta.2 and Ember Data: 1.0.0-beta.2 Here's my setup: Models Rise.User = DS.Model.extend({ //.... user_training_plans: DS.hasMany('training_plan', { async: true }), user_training_histories: DS.hasMany('training_history', { async: true }), }); Rise.TrainingHistory = DS.Model.extend({ //.... user: DS.belongsTo('user', { async: true }), training_resource: DS.belongsTo('training_resource', { async: true }) }); Rise.TrainingPlan = DS.Model.extend({ //.... user: DS.belongsTo(

问题 I have two models - sessions and tests (ember-data) a Session has_many tests. The thing is that in the JSON returned from the server (cannot be changed) has no test_ids in session object so I can't have it in the model. I want to have the ability when I go to #/session/4 - to have ember have another server API call to <server_address>/rest/sessions/4/tests and have it in a "tests" property The current code: App.Session = DS.Model.extend({ logicalId: DS.attr('string'), ..... // tests: DS

问题 I have inherited an Ember.js application built on top of a Rails API. This was originally running the following: Ember.VERSION : 1.0.0 ember.js DEBUG: Handlebars.VERSION : 1.0.0 ember.js DEBUG: jQuery.VERSION : 1.10.2 but these have been updated to the following: Ember : 1.7.1+pre.f095a455 ember.js DEBUG: Ember Data : 1.0.0-beta.10+canary.30d6bf849b ember.js DEBUG: Handlebars : 1.3.0 ember.js using the ember-rails gem. I am falling into a big blocker issue when trying to save a section model.

问题 I have a web service that returns something like this, where there is a fixed envelope and then a body that is json with a schema that depends on "body_schema". I'd like to be able to use ember-data to manage these, with first class fields for the fixed envelope and just an object for the body field. Is this possible? I can't seem to see anything like this in the docs but I can't imagine I'm the first with this issue. {"messages": [ {"id":"5", "from": "someone", "to": "somebody", "body_schema