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

Adding interactivity to commands


If we run our command without any input, we will get a RuntimeException error:

$ bin/console mava:task:create
  [RuntimeException]     
  Not enough arguments.  

However, we have already seen commands that don't need initial inputs to fulfill their purpose. In Chapter 1, Installing and Configuring Symfony, for example, we simply called the following command to generate a whole bundle structure:

$ bin/console generate:bundle

It wasn't necessary to provide any inputs and yet, along the way, it communicated with us and told us what is needed for the next step to generate the bundle. This is a really nice feature. Let's add it to our command.

Console helpers

Console helpers are services that we can use to add interactivity to our commands. We are going to use the Question helper here. First, we need to add the required classes for different types of questions. So open your command class and add the following lines to it:

File source: // AppBundle/Command/TaskCommand...