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CODEIGNITER LOVESYOU

An Introduction to thisFriendly Framework

Wednesday, January 13, 2010


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Frameworks are awesome

Controller

Model

View

Model/View/Controller is adesign pattern to separate out

function from output and

abstract data sources.

Many popular PHP frameworksuse the model including the

Zend Framework, CakePHP andCodeIgniter



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Why frameworks anyway?



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Simplify the small stuff



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Standardized structure



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Standardized structurePromotes good coding standards (and healthy code)



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Speed!



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Speed!

Interoperability



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Frameworks are the answer

(except when theyre not)



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Not worth the overhead



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Might just need the parts (Zend Framework)



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Might just need the parts (Zend Framework)

Like it or not, procedural is here to stay



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Who is EllisLab?

CodeIgniter

ExpressionEngine

ExpressionHosting



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CodeIgniter

CodeIgniter is an Application Development Framework -a toolkit - for people who build web sites using PHP. Its

goal is to enable you to develop projects much faster thanyou could if you were writing code from scratch, byproviding a rich set of libraries for commonly needed

tasks, as well as a simple interface and logical structure toaccess these libraries. CodeIgniter lets you creatively focuson your project by minimizing the amount of code needed

for a given task.

Source: CodeIgniter.com Manual



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What is CodeIgniter?(a framework, duh)



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Simplicity is king



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Simplicity is king

A real framework (not like those Zenders)



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Simplicity is king


Tiny



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Simplicity is king


Tiny

Light



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Simplicity is king


Tiny

Light

...and, oh yeah, simple



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Just how Small?

0

7.5

15

22.5

30CodeIgniter

Symfony

Zend FrameworkCakePHP

Solar

Lithium

Zend Framework above is minimal install, the others huge.

Prados just as bad...



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Naming ConventionsControllers

In the file: /system/application/controllers/blog.php



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Naming ConventionsModels

In the file: /system/application/models/blog_model.php



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Naming ConventionsLibraries

In the file: /system/application/libraries/Defensio.php



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Naming ConventionsHelpers

In the file: /system/application/helpers/blog_helper.php



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Setting Up



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Setting Up

Almost no configuration



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Setting Up


PHP4 Support



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Setting Up


PHP4 SupportNo default templating



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Setting Up


PHP4 SupportNo default templating

Bundled Libraries



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Configuration

Make changes to the config.php file

hostname

Make changes to the database.php file

connection information

Make changes to the routes.php file

Change default controller



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Whats in the Box



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Community



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Community

Great documentation (included)



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Community


Active forums



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Community


Active forums

IRC channel (Freenode)



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Community


Active forums


User support



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Community


Active forums


User support

Community Wiki



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Library Spotlight:

Form/ValidationForm Helper

Easily create forms - just echo

Simple interface for simple or detailed config

The usual suspects

Validation Library

Set up rules and fieldsRules include: required, alpha_numeric, valid_email, valid_ip

Callbacks



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Library Spotlight:

Form/Validation



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Library Spotlight:

LoaderIncluded by default

Methods for major types:

$this->load->model(my_model);

$this->load->library(mylib);

$this->load->view(myview);

Named correctly? Loader is your best friend$this->load->model(blog_post_model);$this->blog_post_model->foo();

$this->load->model(blog_post_model,bpm);$this->bpm->bar();



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Library Spotlight:

Input/SecurityXSS filtering

Security filteringGET

all globals

filters POST/COOKIE on array key

Only \n for newlines



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Library Spotlight:

Doctrine IntegrationMake changes to the database.php file

create DSN

set up paths and autoloader

create the Doctrine connection

make command line interface

make Doctrine directories (fixtures, migrations, etc.)All standard commands available with CLI

Extend Doctrine_Record & Doctrine_Table



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Credits/Contact

Photo credit: Nicholas Smale - Urbis Blocks

Chris [email protected]

Leave me some feedback!http://joind.in/talk/view/1254

Now who wants some code?
http://joind.in/talk/view/1254http://joind.in/talk/view/1254mailto:[email protected]:[email protected]

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