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.

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Mastering Symfony
Apr, 2016 | 290 pages
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Table of Contents (17 chapters)
Mastering Symfony
Mastering Symfony
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
Free Chapter
1
Installing and Configuring Symfony
Installing and Configuring Symfony
Why Symfony?
Installation
Composer and Packagist
Summary
2
The Request and Response Life Cycle
The Request and Response Life Cycle
The big picture
Anatomy of a bundle
Custom bundles versus AppBundle
Creating templates with TWIG
Creating data fixtures
Dynamic templates and controllers
The big picture with MVC
Summary
3
Setting Up the Environment
Setting Up the Environment
The importance of Continuous Integration
Amazon Web Services
Elastic Compute Cloud
Setting up the server
Simple Email Service
Installing PHP tools
Orchestrating the build process
Creating a new job in Jenkins
Running the first build
Do I need CI?
Summary
4
Using Behavior-Driven Development in Symfony
Using Behavior-Driven Development in Symfony
Getting started with BDD
What is Behat?
Writing a scenario for the about page
The about page does not follow BDD
More about the acceptance test flow in Mink
Defining and prioritizing features
Codeception – the BDD style testing framework
Summary
5
Business Logic
Business Logic
Choosing between creating a Model or entity
So where does the business logic live?
Reviewing the facts and building entity relationships
Some business logic features and scenarios
TDD and BDD with Codeception
On the CI side of the story
Summary
6
Dashboard and Security
Dashboard and Security
How security is organized in Symfony?
Handling users with FOSUserBundle
Generating automated data fixtures
The Sonata project
Integrating FOSUserBundle into the admin area
User dashboard
Generating CRUD
Summary
7
The Presentation Layer
The Presentation Layer
How assets are organized
Asset management
How templates are organized
Let's mold the clay
To navigate or not to navigate
What is Bootstrap?
MopaBootstrapBundle
Creating your first menu
The Dashboard template
Overriding templates
Changing the backend logo
Summary
8
Project Review
Project Review
The dashboard's contents
Uploading files with SonataMediaBundle
Team and team members
Adding a notification system
The notification business logic
Summary
9
Services and Service Containers
Services and Service Containers
How to create a service
How are services beneficial to our projects?
How to call a service
How to configure a service
Why is it called a Dependency Injection Container?
Why didn't we import services inside the bundle?
How to create and load services via autowiring
Organizing services with tags
Summary
10
Custom User Commands
Custom User Commands
Creating and registering commands
Creating commands for tasks
Adding interactivity to commands
Summary
11
More about Dev, Test and Prod Environments
More about Dev, Test and Prod Environments
Why do we need different environments?
Processing configuration files
Creating a new environment
Summary
12
Caching in Symfony
Caching in Symfony
Definition of a cache
Caches in a Symfony project
Key players in the HTTP cache header
Using the Symfony reverse proxy cache
How to mix expiration and validation strategies
Putting it all together
ESI for selective caching
Sophisticated bundles
Summary
Index
Index

Creating your first menu

Let's see how to create a bootstrap style menu. The menu feature of MopaBootstrapBundle is totally handled by KnpMenuBundle. Here are the required steps to create a menu:

  1. Go to your AppBundle and create a new folder called Menu.

  2. Add a new class and name it Builder.php; the contents of this class should be as follows:

    <?php
// mava/src/AppBundle/Menu/Builder.php
namespace Mava\CoreBundle\Menu;
use Knp\Menu\FactoryInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;

class Builder extends ContainerBuilder
{
    public function topMenu(FactoryInterface $factory, array $options)
    {
        $menu = $factory->createItem('root');
        $menu->setChildrenAttribute('class', 'nav navbar-top-links navbar-right');

        $dropdown2 = $menu->addChild(' ', array(
            'icon' => 'bell',
            'dropdown' => true,
            'caret' => true,
        ));

        // Create a dropdown header
        $dropdown2->addChild('notifications...
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