Book Image

Mastering Symfony

Book Image

Mastering Symfony

Overview of this book

In this book, you will learn some lesser known aspects of development with Symfony, and you will see how to use Symfony as a framework to create reliable and effective applications. You might have developed some impressive PHP libraries in other projects, but what is the point when your library is tied to one particular project? With Symfony, you can turn your code into a service and reuse it in other projects. This book starts with Symfony concepts such as bundles, routing, twig, doctrine, and more, taking you through the request/response life cycle. You will then proceed to set up development, test, and deployment environments in AWS. Then you will create reliable projects using Behat and Mink, and design business logic, cover authentication, and authorization steps in a security checking process. You will be walked through concepts such as DependencyInjection, service containers, and services, and go through steps to create customized commands for Symfony's console. Finally, the book covers performance optimization and the use of Varnish and Memcached in our project, and you are treated with the creation of database agnostic bundles and best practices.
Table of Contents (17 chapters)
Mastering Symfony
Credits
About the Author
About the Reviewers
Index

Creating data fixtures


Technically, a data fixture is a PHP class with a few initialized objects. In AppBundle, create this directory and file structure:

/DataFixtures/ORM/LoadUsers.php

Add the following content to our class:

<?php
// mava/src/AppBundle/DataFixtures/ORM/LoadUsers.php
namespace AppBundle\DataFixtures\ORM;
use Doctrine\Common\DataFixtures\FixtureInterface;
use Doctrine\Common\Persistence\ObjectManager;
use AppBundle\Entity\User;

class LoadUsers implements FixtureInterface
{
  public function load(ObjectManager $manager)
  {
    // todo: create and persist objects
  }
}

This is the general structure of a data fixture. As you can see, it implements FixtureInterface and has a load() method for data persistence.

All we need to do is create a few objects, set their values, and ask our object manager to persist them:

  public function load(ObjectManager $manager)
  {
    $user1 = new User();
    $user1->setName('John');
    $user1->setBio('He is a cool guy');
    $user1-&gt...