Book Image

Yii2 By Example

By : Fabrizio Caldarelli
Book Image

Yii2 By Example

By: Fabrizio Caldarelli

Overview of this book

Yii is a high-performance PHP framework best for developing Web 2.0 applications. It provides fast, secure, and professional features to create robust projects, however, this rapid development requires the ability to organize common tasks together to build a complete application. It's all too easy to get confused; this is where this book comes in. This book contains a series of practical project examples for developers starting from scratch. Each section contains the most relevant theories for every topic as you walk through developing each project, focusing on key aspects that commonly confuse users. The book starts with all the framework’s basic concepts, such as controllers and views, to introduce you to Yii and creating your first application, a simple news reader. You will be learn to configure URL rules to make a pretty URL, essential for search engine optimization. Next, you will walk through Model and ActiveRecord, key concepts in database interaction. The second application you will develop is a reservation system that allows you to manage rooms, customers, and reservations. For this, you will use database connection through SQL and ActiveRecord. More complex than the first one, this application will introduce you to the advanced template of Yii 2, splitting the app into two parts: a frontend for all visitors and a backend for the admin. Finally, you will move on to the last two applications: one that allows connections from remote clients, through RESTful components of Yii 2, and another that creates and organizes automatic tasks using the console application structure of Yii 2.
Table of Contents (20 chapters)
Yii2 By Example
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Customizing authentication and response


Yii allows us to quickly create a custom authentication method for our application. This is useful because in some cases, the previously mentioned authentications are not sufficient.

A custom authentication model can be made by extending the yii\filters\auth\AuthMethod class, which implements yii\filters\auth\AuthInterface that requires overriding the authenticate ($user, $request, and $response) method:

<?php

namespace api\components;

use yii\filters\auth\AuthMethod;
use Yii;

class CustomAuthMethod extends AuthMethod {

    public function authenticate($user, $request, $response) {
    …
    …
    …
}
…
…
…
}

Even though the REST API should be stateless, or rather should not save session data, it could be necessary to store some information or preferences during a session across requests.

So, if we need to support a session, we can start it through the authenticate() method called in the beforeAction() event. The idea is to use QueryParamAuth using...