Introduction to Yii & performance comparison with Drupal

By Shahzad Malik (cadet018@gmail.com)

IS it fast? ...
IS it secure? ...
IS it professional? ...
IS it right for my next project?

Topics
• Introduction to Yii
– Workflow (MVC)
– Installation Steps
• Features
• Some Code Samples
– Model
– Using Model from Controller
– Controller
– View

Introduction
Yii is a free, open-source Web application
development framework written in PHP5 that
promotes clean, DRY design and encourages
rapid development. It works to streamline
your application development and helps to
ensure an extremely efficient, extensible, and
maintainable end product.
Source: http://www.yiiframework.com/about/

Introduction – Workflow (MVC)

Introduction - Installation
http://www.yiiframework.com/download

Extract framework folder to any directory with access rights

Extract requirements folder to a web-accessible
directory http://www.example.com/requirements

Open console (Command Prompt) and run following command from
web-accessible directory
/path/to/php.exe /path/to/framework/yiic.php webapp myfirstyiiapp

That’s it

Introduction – Installation - Summary
Extract framework folder
Check requirements
Run install command from console
Download

Introduction – Installation - Preview

Features
• Skinning and theming
You can select theme at project
level, controller level, action level Or based on
some condition in action.
• Error handling and logging
Errors are handled and presented more
nicely, and log messages can be
categorized, filtered and routed to different
destinations.

Features
• Automatic code generation
Yii provides a set of spontaneous and highly
extensible code generation tools that can help
you quickly generate the code you need for
features such as form input, CRUD.
• Unit and functionality testing
Test-Driven Development - using PHPUnit and
Selenium Remote Control

Features
• Authentication and authorization
Yii has built-in authentication support. It also
supports authorization via hierarchical role-
based access control.
• Layered caching scheme
Yii supports data caching, page
caching, fragment caching and dynamic
content. The storage medium of caching can
be changed easily without touching the
application code.

Features - Extensions
Auth (42)
Caching (22)
Console (17)
Database (100)
Date and Time (24)
Error Handling (4)
File System (29)
Logging (26)
Mail (16)
Networking (21)
Security (15)
User Interface (475)
Validation (65)
Web Service (77)
Others (289)

Model
class Post extends CActiveRecord
{
/**
* Retrieves a list of models based on the current search/filter conditions.
* @return CActiveDataProvider the data provider that can return the models based on the
search/filter conditions.
*/
public function search()
{
$criteria=new CDbCriteria;
$criteria->compare('content ',$this->content );
$criteria->compare('title ',$this->title ,true);
return new CActiveDataProvider($this, array(
'criteria'=>$criteria,
));
}
}

Model From Controller
Create
$post = new Post;
$post->title = 'sample post';
$post->content = 'post body content';
$post->save(); <- This is validated
Select
$post=Post::model()->find(array(
'select'=>'title',
'condition'=>'postID=:postID',
'params'=>array(':postID'=>2),
));
Update
$post = Post::model()->findByPk(2);
$post->title = ‘New title’;
$post->save(); <- This is validated

Controller
class PostController extends Controller {
/**
* Displays a particular model.
* @param integer $id the ID of the model to be displayed
*/
public function actionView($id)
{
$post = Post::model()->findByPk($id);
if(!$post)
throw new CHttpException(404);
$this->render('view', array(
'post' => $post,
));
}
}

View
$this->breadcrumbs=array(
'Posts'=>array('index'),
$post>title,
);
?>
<h1>View Post #<?php echo $post>id; ?></h1>
<?php $this->widget('zii.widgets.CDetailView', array(
'data'=>$post,
'attributes'=>array(
'title', 'content',
),
)); ?>

Performance – Lazy loading example
/**
* @return array relational rules.
*/
public function relations()
{
return array(
'userRole' => array(self::BELONGS_TO, 'TblRole', 'user_role_id'),
);
}
TblUserModal
Schema

<table>
<tr><th>User id</th><td><?php echo $user->id; ?></td></tr>
<tr><th>User name</th><td><?php echo $user->username; ?></td></tr>
<tr><th>Role</th><td><?php echo $user->user_role_id; ?></td></tr>
</table>

<table>
<tr><th>User id</th><td><?php echo $user->id; ?></td></tr>
<tr><th>User name</th><td><?php echo $user->username; ?></td></tr>
<tr><th>Role</th><td><?php echo $user->userRole->role_name; ?></td></tr>
</table>

Introduction to Yii & performance comparison with Drupal

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