从服务访问Ember-cli模型类

Question

I'm trying define a Person class within an Ember-cli project which I can then call from within a service. I've got a basic service working that updates when various inputs are changed but I can't reference the Person class at all. This is what I currently have:

# app/models/person.js 

import Ember from "ember";

var Person = Ember.Object.extend({
  helloWorld: function() {
    alert("Hi, my name is " + this.get('name'));
  }
});

export default Person; 

and in the router I've got:

# app/router.js

import Ember from 'ember';
import config from './config/environment';
import Person from './models/person';

var Router = Ember.Router.extend({
  location: config.locationType,
  model: function() {
    return Person.create({
      name: "Tom Dale"
    });
  }
});

I'm pretty sure it's referenced the "import Person" correctly because if it's wrong I see an error about the file not being found.

then in the service I've got:

# /app/services/calculator.js

import Ember from 'ember';

export default Ember.Service.extend({

  init: function () {

    // this gives "Person is not defined"
    const person = new Person();

    // this gives "Person is not defined"
    const person = Person.create({ name: "Tom Jones" });

    // this gives "store not defined" 
    const person = this.store.createRecord('person', { name: "Tom Jones" });

  },
});

Any pointers on how I can access the Person class from the service would be greatly appreciated. Thanks!

Answer 1

I'll try to address what I think are some misunderstandings.

First off, you have a Person class but it isn't a DS.Model so you won't be able to use it through Ember Data ( this.store ).

Your router.js file is where you define your routes, as shown in the guides . You seem to be confusing it with how to specify a route's model ? Pay close attention to the file paths in the code samples.

As for the service, Person is not defined because unlike your router.js code, you are not importing Person into the module. Imports are per-module, so you also need import Person from './models/person'; in your service. Check jsmodules.io for more information.
Ember Data's store is injected into Route s and Controllers only, that's why this.store is undefined in the Service . If you want to access the store, do the following:

export default Ember.Service.extend({
  store: Ember.inject.service(),

  init() {
    const person = this.get('store').createRecord('person', { name: "Tom Jones" });
  }
});

Mind you, the above should not work with the code you posted as Person isn't a DS.Model

Answer 2

You need to import Person in every file that references it.

Add import Person from './models/person'; to your service class.