CICON2010: Adam Griffiths - CodeIgniter 2

CodeIgniter 2.0.0Adam Griffiths

@adam_griffiths

adamgriffiths.co.uk

[email protected]

bitbucket.org/adamgriffiths/

http://www.adamgriffiths.co.uk/

mailto:[email protected]

mailto:[email protected]

http://www.bitbucket.org/adamgriffiths/

Who am I?

•Author of programmersvoice.com

•AG Auth - Easiest Auth Library for CI

•AG Asset - simple Asset Management Library

•Author of CodeIgniter 1.7 Professional Development

CodeIgniter 2.0.0

•What’s been removed

•What’s been deprecated

•What’s changed

•What’s new

•Tips for upgrading

What’s been removed

Goodbye Scaffolding

•Deprecated for a number of versions

•Wasn’t a very good implementation

•Has now been removed for CodeIgniter 2.0.0

Au revoir Plugins

•Removed in favour of Helpers

•Nobody was ever sure what they were for

•Plugins & Helpers were too similar

•You should update your Plugins to Helpers

Validation Class

•Deprecated since 1.7.0

•More powerful Form Validation Class should be used instead

Deprecations

PHP 4

•Support now dropped for PHP 4

•YAY!!

•New CI 2 features may not support PHP 4

•All legacy features will no longer support PHP 4 as of 2.1.0

Changes...

Application Directory

•How many of you move your application directory out of the system directory?

•That won’t be an issue in CI2

index.php

•Configuration values can now be stored here.

•Allows a single application to have multiple front controllers with different configuration values.

•Routing overrides now added.

•Limits your application to one controller.

What’s new?

Drivers

•New type of library

•Parent class and any number of child classes

•CI Database Library could be a Driver

Using Drivers

•$this->load->driver(‘driver_name’);

•$this->driver_name->method();

•$this->driver_name->subclass->subclass_method();

Creating a Driver

File Structureapplication/

libraries/driver_name/

Driver_name.phpdrivers/Driver_name_subclass_1.phpDriver_name_subclass_2.php






















Parser File Structureapplication/

libraries/Parser/

Parser.phpdrivers/Parser_dwoo.phpParser_smarty.php


libraries/Parser/



libraries/Parser/



libraries/Parser/



libraries/Parser/



libraries/Parser/


Parser.php Class<?php

class Parser extends CI_Driver_Library {

} // class

?>



} // class

?>



} // class

?>

<?php


function __construct() {$this->valid_drivers = array('parser_dwoo', ‘parser_smarty’);

} // _construct()

} // class

?>

function __construct() {$this->valid_drivers = array('parser_dwoo', ‘parser_smarty’);

} // _construct()

Parser_dwoo.php Class<?php

class Parser_dwoo extends CI_Driver {

} // class

?>



} // class

?>



} // class

?>

Packages

•Allows for easy distribution of resources in a single directory.

•Can have it’s own library files, models, config files etc.

•Placed in application/third_party

•MojoMotor addons are packages

Creating a Package

Package File Structureapplication/ third_party/ package_name/ config/ helpers/ language/ libraries/ models/









Add Package Path

•Before you can load a package, you need to tell the Loader where to look for it.

•$this->load->add_package_path(APPPATH.'third_party/package_name/');

•$this->load->library(‘package_name’);

Remove Package Path

•When finished using a Packages resources.

•When you want to use multiple Packages.

•$this->load->remove_package_path(APPPATH.'third_party/package_name/');

Package View Files

•Disclaimer: not finished

•Save the original view path

•Set the view path to that of the Package

•Load views, etc

•Set the path back to the original

// ... save the original view path, and set to our package view folder$orig_view_path = $this->load->_ci_view_path;$this->load->_ci_view_path = APPPATH.'third_party/package_name/views/';// ... code using the package's view files// ... then return the view path to the application's original view path$this->load->_ci_view_path = $orig_view_path;

Mercurial/BitBucket

•In development code is now hosted on BitBucket

•Easier to get *your* code in the CI core

•Allows community to help squish bugs

•No SVN!! (Sorry but I really do hate Subversion)

Quick and Dirty Mercurial Tutorial

The Basics

•hg init

•hg pull <url>

•hg pull <constant>

•hg pull <path/to/local/repo>

•hg update

Continued...

•hg diff

•hg add .

•hg add <path/to/file>

•hg commit -m “Commit Message”

•hg push <url>

•hg push <constant>

.hgrc file

•mate $HOME/.hgrc

•[paths]

•ci_master = http://bitbucket.org/ellislab/codeigniter/

http://bitbucket.org/ellislab/codeigniter/

Upgrading Tips

Upgrading your Models

•CodeIgniter 1.7.2 Models extend Model

•CodeIgniter 2.0.0 Models extend CI_Model

Lazy mans Model Upgrade

•Create a new Library file: MY_Model.php<?php

class Model extends CI_Model{ function __construct() { parent::__construct(); } // construct()} // class

?>




?>




?>




?>

Controllers

•Controllers are currently unchanged

•Ellis Lab are evaluating changing the Controller class from Controller to CI_Controller

Lazy mans Controller Upgrade

•Create a new Library file: MY_Controller.php<?php

class Controller extends CI_Controller{ function __construct() { parent::__construct(); } // construct()} // class

?>




?>




?>




?>

Summary

•Plugins, Validation Library & Scaffolding have been removed

•PHP 4 support dropped

•Drivers & Packages

•Model Class renamed

•Mercurial/Bitbucket

Q & A

•@adam_griffiths

•Skype: adam-griffiths

•[email protected]

•www.adamgriffiths.co.uk

•www.bitbucket.org/adamgriffiths/

http://www.adamgriffiths.co.uk/

Documents

CICON2010: Adam Griffiths - CodeIgniter 2