This library provides an adapter for the Ember Data persistence framework for Ember.js, allowing to store application models as JSON documents in elasticsearch.
It handles the full model lifecycle (create/read/update/delete), in the same way
as the DS.RESTAdapter
bundled with Ember Data.
It does not provide support for any Rails-like has_many
associations and probably never will.
It does not provide support for the bulk Ember Data API, yet.
First, load the ember-data/lib/adapters/elasticsearch_adapter.js
file in your application.
Use the adapter in your application's store:
var App = Em.Application.create();
App.store = DS.Store.create({
revision: 4,
adapter: DS.ElasticSearchAdapter.create({url: 'http://localhost:9200'})
});
To define a model in your application, use the standard Ember Data API:
App.Person = DS.Model.extend({
name: DS.attr('string')
});
Define an index and type for the adapter as the model's url
property:
App.Person.reopenClass({
url: 'people/person'
});
To create a new record:
App.Person.createRecord({ id: 1, name: "John" });
App.Person.createRecord({ id: 2, name: "Mary" });
store.commit();
To load models from the store, use the find
method:
var people = App.Person.find();
people.toArray().map( function(person) { return person.get("name") } );
// => ["John", "Mary"]
To load a single model by ID:
var person = App.Person.find( 1 );
person.get("name");
// => "John"
To load multiple models by their IDs, pass them as an Array:
var people = App.Person.find( [2, 1] );
people.toArray().map( function(person) { return person.get("name") } );
// => ["Mary", "John"]
To load models by an elasticsearch query, pass it as an Object:
var people = App.Person.find( {query: { query_string: { query: "john" } }} );
people.get("length");
// => 1
To persist model changes to the store, use the store's commit
method:
person.set("name", "Frank");
store.commit();
To remove the record from the store:
person.deleteRecord();
store.commit();
Note, that all the methods are asynchronous, so the returned object is empty; bindings and observers take care of updating the object with loaded data in an Ember.js application.
See the Ember Data documentation for more information.
The library includes an example “todos” application, as required by law.
The library comes with a QUnit-based integration test suite
in ember-data/test/elasticsearch_adapter_tests.js
.
Apart from running it in the browser, you can run it on the command line with the PhantomJS JavaScript runtime via a Rake task:
rake test