Reusable bootstrap resources zend con 2010

Reusable Bootstrap Resources
Hector Virgen
ZendCon 2010

About Me
Average, everyday PHP developer.
Zend PHP5 Certified Engineer
Used ZF since 1.0.2 (December 2007)
Developed web applications for
RealTown 2004-2008
Houghton Mifflin 2008-2010
Disney 2010-current

What is Bootstrapping?
Or “What does footwear have to do with the interwebs?”

Typical Bootstrap Tasks
Define constants
Set up include path
Set up autoloader
Initialize resources
Database connections
Session
Web service clients

Welcome Zend_Application
Or “Bootstrapping with Style”

Start with Zend_Tool
$ zf create project quickstart
Creating project at /Users/hevirgen/Web/projects/quickstart
Note: This command created a web project, for more information setting up your VHOST, please see docs/README

Your App’s Configuration
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_PATH "/../library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
appnamespace = "Application"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
resources.frontController.params.displayExceptions = 0
[staging : production]
[testing : production]
[development : production]
resources.frontController.params.displayExceptions = 1

Bootstrap
<?php
class Bootstrap extends Zend_Application_Bootstrap_Bootstrap
{
}

Initializing Resources
Or “Loading up your application’s dependencies”

Choose Your Path Wisely, Grasshopper
Bootstrap resources by:
Providing protected _init*()methods.
Using resource plugins.

_init*() Methods
Coded directly in the application’s Bootstrap class.
Return value is stored in bootstrap registry.

_init*() Methods
{
protected function _initFoo()
{
$foo = new Foo();
return $foo;
}
}

Resource Plugin
Each resource is initialized in its own class.
Plugins are loaded in LIFO order.
Return value is stored in bootstrap registry.

Resource Plugin
class MyResource_Foo extends Zend_Application_Resource_Abstract
{
public function init()
{
$foo = new Foo();
return $foo;
}
}

Ensure Resource Plugin is Loaded
[production]
pluginPaths.My_Resource = APPLICATION_PATH “/resources”
resources.foo[] =
; or
resources.foo.key = “value”

Accessing Resources
Or “Gimmegimmegimme!”

Within an Action Controller
$bootstrap = $this->getInvokeArg(‘bootstrap’);
$foo = $bootstrap->getResource(‘foo’);

Within a Bootstrap Resource
$bootstrap = $this->getBootstrap();
$bootstrap->init(‘bar’);
$bar = $bootstrap->getResource(‘bar’);

Statically AKA “Globally”
$front = Zend_Controller_Front::getInstance();
$bootstrap = $front->getParam(‘bootstrap’);
$foo = $bootstrap->getResource(‘foo’);

_init*() or Plugin?
Which is better?

The Most Perfectest Bootstrap
{
// Empty!!
}

Or Use ZF Bootstrap
[production]
bootstrap.path= APPLICATION_PATH "/../library/Zend/Application/Bootstrap/Bootstrap.php"
bootstrap.class = ”Zend_Application_Bootstrap_Bootstrap”

Configuring Resources
Or “How to avoid hard-coding values”

_init*()
[production]
foo.bar = “bar”
foo.bar = “derp”

_init*()
protected function _initFoo()
{
$options = $this->getOptions();
assert($options[‘foo’][‘bar’] == ‘derp’); // true
}

Resource Plugin
[production]
resources.foo.bar= “bar”
resources.foo.bar= “derp”

Resource Plugin
Class MyResource_Foo extends Zend_Application_Resource_Abstract
{
{
$options = $this->getOptions();
assert($options[‘bar’] == ‘derp’); // true
}
}

Resource Plugin
Class MyResource_Foo extends Zend_Application_Resource_Abstract
{
protected $_bar;
public function setBar($bar)
{
$this->_bar = $bar;
}
{
assert($this->_bar == ‘derp’); // true
}
}

Why Plugins Are Awesomesauce
Reusable between projects
Easily unit-tested
Can be packaged with resource libraries
Can provide sane defaults
Loaded in LIFO order allows for extending plugins

When Plugins Can Be Weaksauce
Performance concerns with loading a class file for each resource plugin
Some editors (Notepad.exe) don’t support opening multiple files

print(“all done!”);http://www.virgentech.comdjvirgen@gmail.com

http://www.virgentech.com	80
http://www.berejeb.com	37
http://www.devetdesign.com	4
http://www.ofelio.com	2
http://localhost	1

Reusable bootstrap resources zend con 2010

by Hector Virgen on Nov 02, 2010

Accessibility

Categories

Tags

Upload Details

Usage Rights

5 Embeds 124

Statistics

Reusable bootstrap resources zend con 2010 — Presentation Transcript