POC store.cachedQuery()

adapters.application.js

import DS from "ember-data";

export default DS.JSONAPIAdapter.extend();

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  actions: {
    update() {
      let persons = this.store.cachedQuery('person', {});
      persons.then((result) => {
        this.set("model", result);
      });
    }
  }
});

initializers.pretender.js

export function returnJSON(status, body) {
  return json(...arguments);
};

export function json(status, body) {
  if (arguments.length === 1) {
    body = status;
    status = 200;
  }
  
  return [
    status,
    { "Content-Type": "application/json" },
    JSON.stringify(body)
  ];
};

export const server = new Pretender();

export function initialize() {
  server.handledRequest = function(verb, path, request) {
    console.log(`handled request to ${verb} ${path}`);
  }

  server.unhandledRequest = function(verb, path, request) {
    console.log(`undhandled request ${verb} ${path}`);
  }
};

export default {
  name: 'pretender',
  initialize
};

models.person.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  name: attr()
});

routes.application.js

import Ember from 'ember';
import { server, json } from '../initializers/pretender';

let count = 1;

server.map(function() {
  this.get('/people', function() {
    return json({
      data: [{
        type: 'person',
        id: 1,
        attributes: {
          name: `George Michael Bluth, the ${count++}`
        }
      }]
    });
  }, 500);
});

export default Ember.Route.extend({
  model: function() {
    return this.store.cachedQuery('person', {}); 
  }
});

serializers.application.js

import DS from "ember-data";

export default DS.JSONAPISerializer.extend();

services.store.js

import Ember from "ember";
import Store from "ember-data/store";

export default Store.extend({
  init() {
    this._super(...arguments);
    
    let store = this;
    this._queryCache = Ember.MapWithDefault.create({
      defaultValue(type) {
        return Ember.MapWithDefault.create({
          defaultValue(query) {
            return store.query(type, JSON.parse(query));
          }
        });
      }
    });
  },
  
  cachedQuery: function(type, query) {
    // note that this is not be stable, so this might
    // need some adaption regarding ordering of keys
    let stringifiedQuery = JSON.stringify(query);

    let queriesForType = this._queryCache.get(type);

    let shouldUpdateQuery = queriesForType.has(stringifiedQuery);
    let cachedQuery = queriesForType.get(stringifiedQuery);
    
    // update query if it isn't newly created; this could be configurable
    // via an argument to this function 
    if (shouldUpdateQuery) {
      cachedQuery.then(function(result) {
        result.update();
      });
    }
    
    return cachedQuery;
  }
});

templates.application.hbs

Updating query: {{model.isUpdating}}

<ul>
	{{#each model as |person| }}
  	<li>{{person.name}}</li>
  {{/each}}
</ul>

<button {{action "update" }}>update</button>

twiddle.json

{
  "version": "0.7.2",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "release",
    "ember-data": "2.5.1",
    "ember-template-compiler": "release",
    "route-recognizer": "https://rawgit.com/tildeio/route-recognizer/56f5fcec6ae58d8e86b5dc77609809fb91198142/dist/route-recognizer.js",
    "FakeXMLHttpRequest": "https://rawgit.com/pretenderjs/FakeXMLHttpRequest/23c3a96b5b24f1bfe595867437e4f128a29c2840/fake_xml_http_request.js",
    "pretender": "https://rawgit.com/pretenderjs/pretender/c6de9afe18b1472aded2592f5a80ad9a26a0e262/pretender.js"
  }
}