Datagrids with Symfony 2, Backbone and Backgrid

Eugenio Pombi & Giorgio Cefaro

requirements - composerhttp://getcomposer.org

Run this in your terminal to get the latest Composer version:

curl -sS https://getcomposer.org/installer | php

Or if you don't have curl:

php -r "eval('?>'.file_get_contents('https://getcomposer.org/installer'));"

requirements - symfonyhttp://symfony.com/download

Create a symfony 2.3.1 project in path/:

php composer.phar create-project symfony/framework-standard-edition path/ 2.3.1

requirements - dependenciescomposer.json:

"require": { [...] "friendsofsymfony/rest-bundle": "0.12", "jms/serializer-bundle": "dev-master", "jms/di-extra-bundle": "dev-master", "friendsofsymfony/jsrouting-bundle": "~1.1"},

requirements - FOSRestBundlehttps://github.com/FriendsOfSymfony/FOSRestBundle

app/config/config.yml:

fos_rest:param_fetcher_listener: truebody_listener: trueformat_listener: trueview:

view_response_listener: 'force'

requirements - javascript libsDownload the required libs:

http://backbonejs.org/http://underscorejs.org/http://jquery.com/http://backgridjs.com/http://twitter.github.io/bootstrap/

requirements - javascript libsPlace the libraries in src/Acme/MyBundle/Resources/public/js/ and include them with Assetic:

base.html.yml:{% block javascripts %}

{% javascripts'bundles/mwtbrokertool/js/di-lite.js''bundles/mwtbrokertool/js/jquery.js''bundles/mwtbrokertool/js/underscore.js''bundles/mwtbrokertool/js/bootstrap.js''bundles/mwtbrokertool/js/backbone.js'%}<script src="{{ asset_url }}" type="text/javascript"></script>{% endjavascripts %}<script src="{{ asset('/js/fos_js_routes.js') }}"></script>

{% endblock %}

controllers - index/*** @ParamConverter("user", class="MyBundle:User", options={"id" = "userId"})* @FosRest\Get("/ticket.{_format}",* name="mwt_brokertool_ticket",* defaults={"_format": "json"},* options={"expose"=true})*/public function indexAction(User $user){ $em = $this->getDoctrine()->getManager(); $repo = $em->getRepository('MyBundle:Ticket');

$tickets = $repo->findBySellerJoinAll($user);

return $tickets;}

controllers - new/**

* @ParamConverter("user", class="MyBundle:User", options={"id" = "userId"}) * @FosRest\Post("/ticket.{_format}", * name="My_bundle_ticket_new", * defaults={"_format": "json"}, * options={"expose"=true} * ) * @FosRest\View * @param User $user */

public function newAction(User $user){

[...]}

controllers - new ticket $ticket = new Ticket(); $form = $this->createForm(new TicketType(), $ticket); $data = $this->getRequest()->request->all(); $children = $form->all(); $data = array_intersect_key($data, $children); $form->submit($data); if ($form->isValid()) { $em = $this->getDoctrine()->getManager(); $em->persist($ticket); $em->flush();

return View::create($ticket, 201); }

return View::create($form, 400);

test indexpublic function testIndex(){ $client = static::createClient(); $crawler = $client->request('GET','/'.$this->user1->getId().'/ticket'); $this->assertTrue($client->getResponse()->isSuccessful()); $json_response = json_decode($client->getResponse()->getContent(), true); $this->assertTrue(is_array($json_response)); $this->assertTrue(isset($json_response[0]['event_id'])); $this->assertTrue(isset($json_response[1]['event_id'])); $this->assertTrue(isset($json_response[2]['event_id']));}

test new ticket$client = static::createClient();$client->request( 'POST', '/' . $this->user1->getId() . '/ticket', array(), array(), array('CONTENT_TYPE' => 'application/json'), '[aJsonString]');

$this->assertEquals(201, $client->getResponse()->getStatusCode());json_response = json_decode($client->getResponse()->getContent(), true);$this->assertTrue(is_array($json_response));

$ticket = $this->em->getRepository('ACMEMyBundle:Ticket')->findOneBy(array(...);$this->assertNotNull($ticket);

backgrid

backgrid

backgrid

backgridjs.com

The goal of Backgrid.js is to produce a set of core Backbone UI elements that offer you all the basic displaying, sorting and editing functionalities you'd expect, and to create an elegant API that makes extending Backgrid.js with extra functionalities easy.

backgrid

Backgrid.js depends on 3 libraries to function:● jquery >= 1.7.0● underscore.js ~ 1.4.0● backbone.js >= 0.9.10

backgrid● Solid foundation. Based on Backbone.js.

● Semantic and easily stylable. Just style with plain CSS like you would a normal HTML table.

● Low learning curve. Works with plain old Backbone models and collections. Easy things are easy, hards things possible.

● Highly modular and customizable. Componenets are just simple Backbone View classes, customization is easy if you already know Backbone.

● Lightweight. Extra features are separated into extensions, which keeps the bloat away.

di-lite.js

minimalistic dependency injection container

ctx.register("name", instance);

ctx.get("name");

My.Stuff = Backbone.Collection.extend({ dependencies: "name", [...]});

di-lite.js - examplevar ctx = di.createContext();

var user = function () {

this.id = $("#grid").attr('data-user);

};

ctx.register("user", user);

var App.Collections.Articles = Backbone.Collection.extend({

dependencies: "user",

model: App.Models.Article,

url: function() {

return '/article?userId=' + this.user.id;

}

[...]

});

ctx.register("articles", App.Collections.Articles);

backbone model + collection

var Ticket = Backbone.Model.extend({});

var Tickets = Backbone.Collection.extend({ model: Territory, url: Routing.generate('my_bundle_ticket', { userId: App.userId })});

var tickets = new Tickets();

backbone associations

Associations allows Backbone applications to model 1:1 & 1:N associations between application models and Collections.

https://github.com/dhruvaray/backbone-associations

var TicketGroup = Backbone.AssociatedModel.extend({

relations: [ { type: Backbone.Many, key: 'tickets', relatedModel: 'Ticket' }]});

backgrid columns

var columns = [{ name: "event_name", label: "Event", cell: "string" , editable: false,}, { name: "event_datetime", label: "Event Date", cell: "datetime"}];

backgrid initialize

var grid = new Backgrid.Grid({ columns: columns, collection: tickets});

$("#my-list").append(grid.render().$el);

// Fetch some tickets from the urltickets.fetch({reset: true});

backgrid - computed fieldshttps://github.com/alexanderbeletsky/backbone-computedfields

var CartItem = Backbone.Model.extend({ initialize: function () { this.computedFields = new Backbone.ComputedFields(this); },

computed: { grossPrice: { depends: ['netPrice', 'vatRate'], get: function (fields) { return fields.netPrice * (1 + fields.vatRate / 100); } } }});

backgrid - computed fieldsvar columns = [{ name: "netPrice", label: "Net Price", cell: "number" }, { name: "vatRate", label: "VAT Rate", cell: "integer"}, {

name: "grossPrice",

label: "Gross price", cell: "number"}];

backgrid - select editor

{ name: "country", label: "Country", cell: Backgrid.SelectCell.extend({ optionValues: ctx.get('countries').getAsOptions() })}

backgrid - select editor

App.Collections.Countries = Backbone.Collection.extend({getAsOptions: function () {

var options = new Array(); this.models.forEach(function(item) { options.push([item.get('name'), item.get('id')]) }); return options;

}});

toggle cell - column definition

{ name: 'nonModelField', label: 'Details', editable: false, cell: Backgrid.ToggleCell, subtable: function(el, model) { var subtable = new Backgrid.Grid({ columns: columns, collection: model.get('tickets') }); el.append(subtable.render().$el); return subtable; }

toggle cell - cell extensionBackgrid.ToggleCell = Backgrid.Cell.extend({ [...]});

toggle cell - cell extension - renderBackgrid.ToggleCell = Backgrid.Cell.extend({ [...] render: function() { this.$el.empty(); var new_el = $('<span class="toggle"></span>'); this.$el.append(new_el); this.set_toggle().delegateEvents(); return this; }});

toggle cell - cell extension - event

set_toggle: function() {

var self = this;

var td_el = this.$el;

td_el.find('.toggle').click( function() {

var details_row = td_el.closest('tr').next('.child-table');

if (details_row.length > 0) {

$(details_row).remove();

} else {

details_row = $('<tr class="child-table"><td colspan="100"></td></tr>');

$(this).closest('tr').after(details_row);

self.subtable = self.column.get('subtable')(details_row.find('td'), self.model);

}

});

return this;

}

retrieve data - modelApp.Models.TicketGroup = Backbone.AssociatedModel.extend({ relations: [ { type: Backbone.Many, key: tickets, relatedModel: 'App.Models.Ticket' } ],

[...]});

retrieve data - collectionApp.Collections.TicketGroups = Backbone.Collection.extend({ model: App.Models.TicketGroup, parse: function(tickets, options) {

[...]

return ticketGroups; },});

retrieve data - collection var ticketGroups = []; _.each(tickets, function (element, index, list) { var foundElement = _.findWhere(

ticketGroups, {event_id: element.event_id}

)

if (foundElement == null) { ticketGroups.push({ "event_id": element.event_id, "event_name": element.event_name, "tickets": [element] }); } else { foundElement.tickets.push(element); } }, this);

testing!describe("TicketGroups Collection", function () { describe("parse", function () { beforeEach(function () { this.ticketGroupCollection = new App.Collections.TicketGroups(); }); it("parse should return a ticketGroup with nested tickets", function () { var jsonWith3Records = [...]; var result = this.ticketGroupCollection.parse(jsonWith3Records, {}); result.should.have.length(2); var firstResult = result[0]; firstResult.event_name.should.equal("Concerto Iron Maiden"); firstResult.tickets.should.have.length(2); var secondResult = result[1]; secondResult.event_name.should.equal("Battle Hymns Tour"); secondResult.tickets.should.have.length(1);//close brackets

thanks

@giorrrgiogiorgiocefaro.com

@euxpomnerd2business.net