Edp bootstrapping a-software_company

Zend Framework in 2009
Alan Seiden – Strategic Business Systems
alan@alanseiden.com
New York PHP
24-Feb-2009

NY-PHP Zend Framework | 24-Feb-2009 | 2
Speaker
Alan Seiden: alan@alanseiden.com
PHP and Zend Framework Consultant
Strategic Business Systems, Inc.
Contributor: Mantis/400 & IBM’s Zend Core for i5/OS
Writer about PHP for IBM i5 community
Mentor for teams learning Zend Framework
Zend Certified Engineer—Zend Framework

Tonight we will cover:
• Zend Framework (ZF) basics
 What, why, how
• ZF’s flexible model-view-controller (MVC)
implementation
 Keeps your code organized logically and handles “plumbing”
• Components (libraries)
 Including classes to access web services
• What’s new and what’s next

What is ZF?
• An open source, MVC-based PHP framework
• Is it a framework? Yes
 "Glue" to build applications
 Components developed, tested, distributed together
• But loosely coupled
 “Use at will” architecture
 Dependencies documented in manual
• Section A.1.4. Zend Framework Dependencies

Birth and early years
• 2005: PHP Collaboration Project at ZendCon
 Started as collection of components but coalesced
 PHP 5, object oriented (OO) from the start
 Set example of OO design patterns and practices
• July 2007: GA version 1.0
• February 17, 2009: version 1.75
• Frequent minor releases

What’s it made of?
• Robust, high quality object-oriented PHP 5
libraries
 Test-driven development
• 80+% code coverage
 Peer review of all code
 Coding standards
• http://framework.zend.com/manual/en/coding-standard.html
 Components not released until documented in manual and
inline
• phpDocumentor format: http://phpdoc.org

Flexible License
• “New BSD” license
 http://framework.zend.com/license
 Use code however you like
• Apache-like contributor license agreement (CLA)
 Safety for users/corporations
 All original code; no patent claims

Why I use it
• As I learn what it can do, the less boring code I write
 At first, I reinvented the wheel
 Realized that ZF already provided functionality
 I can write less “plumbing” code
• Can customize and extend
 Numerous integration points
 Interfaces and small methods give you control
• It keeps up with trends and APIs
 Compatibility with diverse database systems, authentication and
other APIs
 Including IBM i (AS/400)’s unique version of db2
 Web services

Community
• Contributors include individuals and companies.
Companies include:
 Zend (of course)
 IBM
 OmniTI
• Technology partners:
 Adobe, Google, IBM, Microsoft, nirvanix, StrikeIron
• Help available at zfforum.com, e-mail lists, #zftalk
IRC

Requirements for Zend Framework 1.75
• Required:
 PHP 5.2.4+
• Optional:
 mod_rewrite
• Recommended; route URLs through bootstrap file
 Extensions as needed. Examples:
• ext/session in Zend_Session
• ext/gd in Zend_Captcha
 PHPUnit 3.3.0 if use Zend_TestPHPUnit
• Full list of reqs and dependencies:
 framework.zend.com/manual/en/requirements.html

How it’s developed

Issue tracker

Timesaving conventions
• Autoloader
 PEAR convention for class/file names
• Example: Search_Product = Search/Product.php
• Put this in bootstrap file:
require_once 'Zend/Loader.php';
Zend_Loader::registerAutoload();
• Now you can do:
$prod = new Search_Product();
• Fluent interface
$select = $db->select()
->from( ...specify table and columns... )
->where( ...specify search criteria... )
->order( ...specify sorting criteria... );

Model-View-Model-View-
ControllerController

Model – View – Controller design pattern
• Model
 Classes that access your data
• View
 Templates to present that data (e.g. HTML for browser)
• Controller (action controller)
 Application flow
 Connects model and view
• (Bonus: front controller!)

Front ControllerFront Controller

Front controller pattern
• Front controller sits in front of MVC
• All PHP requests funneled through index.php (bootstrap file)
• Front controller gets your application started
 Initializes request/response objects
 Can handle common settings and functionality
• “Include” paths
• Configurations
• Location of MVC components (if necessary)
• Logging, db (perhaps), authentication/authorization
 Converts URL to a “request” object with distinct parts
 Routes requests to appropriate action controllers
• Receives exceptions

Front controller to action controller

Routes URL request
• Default routing convention:
 http://example.com/controller/action/param1/value1...
Front
Controller
Controller1
action1()
action2()
Controller2
action1()
action2()
Bootstrap:
index.php
http
reques
t
Action maps to
method name
Param/value pairs
are passed to
action
Controller maps
to class name

Front controller needs two files in public folder
In document root
(public folder):
1. .htaccess
redirects requests
to bootstrap script
(index.php)
2. index.php
instantiates
Front Controller

Front controller file #1: .htaccess
RewriteEngine on
# funnel all requests to index.php
# except requests for static resources
RewriteRule !.(js|ico|gif|jpg|png|css)$ index.php

Front controller file #2: index.php
<?php
// bootstrap file
setincludepath('.' . PATHSEPARATOR . '../library' .
PATHSEPARATOR . '../application/default/models/' .
PATHSEPARATOR . getincludepath());
// Prepare the front controller
$frontController = Zend_Controller_Front::getInstance();
// Dispatch the request using the front controller
$frontController->dispatch();

Action ControllerAction Controller

Action Controller
• Controller classes handle groups of request URLs
http://example.com/controller/action
Default: IndexController
 Organizes and groups functionality
 One class (extending Zend_Controller_Action) for each controller
• Action methods in each controller class handle
requests
http://example.com/controller/action
Default: indexAction()
 Named like actionAction()
• Example: If action is “edit” then method is editAction()

More controller functionality
• Several standard methods help organize and
control the flow
 init() – called by the constructor
 preDispatch() – called before the action’s method
 postDispatch() – called after the action’s method
• Utility methods
 forward(), redirect(), getParam(), getRequest(), getResponse(),
render()
• Action helpers add functionality
 Built-in helpers. Example: gotoSimple()
 Your own helpers
 Avoids the need to build your own base controller class

Controller example

Action helpers
• They extend Zend_Controller_Action_Helper_Abstract
• Built-in action helpers
 ActionStack
 AjaxContext
 AutoComplete: Dojo, Scriptaculous
 ContextSwitch
 FlashMessenger
 Json
 Redirector
 Url
 ViewRenderer
• Create your own
 Place in the "My/Helper/" directory of your library (or any directory on your
includepath)

Action helper example: Redirector gotoSimple()
class Forward_Controller extends Zend_Controller_Action
{
protected $redirector = null;
public function init()
{
$this->redirector = $this->helper->getHelper('Redirector');
}
public function myAction()
{
/* do some stuff */
// Redirect to 'my-action' of 'my-controller' in the current
// module, using the params param1 => test and param2 => test2
$this->redirector->gotoSimple('my-action',
'my-controller',
null,
array('param1' => 'test',
'param2' => 'test2'
)
);
}
}

ViewView

View
• Scripts (templates)
 PHP-based script templates to present data
 Should contain only display logic, not business logic
 Default naming: “myaction.phtml”
• Helpers
 Classes and methods that provide reusable view functionality
• Examples of built in view helpers: escape(), formText(), partial(), partialLoop(),
headTitle()
• Write your own, too
• Output filters
• Layout
• Placeholders

Controller (again)…leads to view

View script automatically rendered

Zend_Layout

Zend_Layout
• Two-step view pattern
 Uses Zend_View for rendering
• Placeholders useful for setting javascript, titles, other variable data
• Layout view helper
 shortcut to layout placeholder
 These are equivalent:
// fetch 'content' key using layout helper:
echo $this->layout()->content;
// fetch ‘content' key using placeholder helper:
echo $this->placeholder('Zend_Layout')->content;
• Enable in bootstrap
   // accept default path
Zend_Layout::startMvc();
   // or specify path
   $layoutPath = realpath(dirname(__FILE__) .
'/../application/layouts');
   Zend_Layout::startMvc(array("layoutPath“ => $layoutPath));

My own view helper: TitleCase.php
<?php
Require_once 'Zend/View/Interface.php';
/**
* TitleCase helper
*/
class Zend_View_Helper_Title_Case {
public $view;
public function titleCase($string = '')
{
    // convert incoming string so that
    // first letter of each word is capitalized/
    // but all other letters are lowercase.
    // Also trim the string.
    return ucwords(strtolower(trim($string)));
} //(public function titleCase())
public function setView(Zend_View_Interface $view) {
$this->view = $view;
}
}
Usage:
echo $this->titleCase(‘mozilla
firefox’);
// Mozilla Firefox

ModelModel

Model
• Models are abstract representations of data
 Can be extended from:
• Zend_Db_Table_Row – For database abstraction
• Zend_Feed_Element – For RSS abstraction
• Yahoo_Result – For Yahoo abstraction
• Or any other class that fits your needs
• Or build your own own abstract representations of your data

Models (more)
• Model classes contain business logic to prepare
complex data for presentation
• I stuff any “weird” code in models so that
controllers/views are clean

Model: example
<?php
// model: Busyflag.php
class Busyflag
{
    // The table name
    protected $name = ‘SYSFLAGS'; // old-fashioned “System 36” table
    // isSiteUp: return true if up, false if down
    public function isSiteUp() {
        // one record, with key "B"
        $sql = "select BZYFLG from {$this->name} where RECID = 'B'";
        $row = SBSDbhelp::getOneRow($sql);
        // true if Y, false otherwise.
        return $row['BZYFLG'] == 'Y';
    } //(public function isSiteUp())
} //(class Busyflag)
// usage (from a preDispatch front controller plugin)
$busyFlag = new Busyflag();
if (!$busyFlag->isSiteUp()) {
    // Take user to "site down" page.
    $request->setControllerName("Down");
    $request->setActionName("index");
} //(if (!$busyFlag->isSiteUp()))

Controller + Model + View: traditional
<?php
// Controllers/SearchController.php
require_once 'Zend/Controller/Action.php';
class SearchController extends Zend_Controller_Action
{
public function indexAction()
    {
        $prodid = $this->_getParam('prodid');

        // look up product data in model
        $products = new Search_Products();
        $results = $products->find($prodid);

        // assign results to view
     $this->view->results = $results;
    }
}
<?php
// views/scripts/search/index.phtml
?>
Products found:<ul>
<?php
foreach ($this->results as $result) {
    echo "<li>{$this->escape($result->prodname)}</b>{$this->escape($result-
>available)}</li>";
}
?>
</ul>

MVC your way: custom routing rules
• Can declare custom routing rules with
Zend_Controller_Router_Route classes
 Not limited to “controller/action/param” format
 Example: “year/month/day/title” as in a blog
posting:
 URL: http://myblog.com/2008/02/24/i-like-routers
 $route = new Zend_Controller_Router_Route(
    ':year/:month/:day/:title',
    array(
        'year'       => 2009,
        'controller' => ‘articles',
        'action'     => 'show'
    ),
    array(
           'year'  => 'd+‘,
           ‘month' => 'd+‘,
           ‘day‘   => 'd+‘,
       )
);
$router->addRoute(‘posts', $route);

MVC your way: multi-MVC
• Can separate app sections into modules
(Mitch P.’s “atomic MVC”)
$front->setControllerDirectory(array(
'default' => '/demo/application/controllers',
'blog' => '/demo/application/blog/controllers' ));
• Blog_IndexController is class name of index
action controller within blog app/module
 URL: example.com/blog or /blog/index or
/blog/index/index
• IndexController is still class name within
default app/module
 URL: / or /index or /index/index

Tools can help get you started
• Zend Studio for Eclipse creates default directory structures and
classes for you
 Free trial: http://www.zend.com/en/products/studio/

ComponentsComponents

Library of Zend components
Reminder:
Zend/Db.php = Zend_Db
Zend/Db/Table.php = Zend_Db_Table

Components vs. straight PHP
• Additional functionality
 Zend_Session vs. straight $_SESSION
 Zend_Debug::dump() vs. vardump
• Thread-safety
 Zend_Translate vs. gettext
 Zend_Locale vs. setlocale
• OO
 OO Syntax
 May be extended with custom functionality
 ZF components reduce coding when used together
• They’ve been tested and integrated for you

Components in 1.75
Zend_Acl
Zend_Amf
Zend_Auth
Zend_Cache
Zend_Captcha
Zend_Config
Zend_Config_Writer
Zend_Console_Getopt
Zend_Controller
Zend_Currency
Zend_Date
Zend_Db
Zend_Debug
Zend_Dojo
Zend_Dom
Zend_Exception
Zend_Feed
Zend_File
Zend_Filter
Zend_FilterInput
Zend_Form
Zend_Gdata
Zend_Http
Zend_Infocard
Zend_Json
Zend_Layout
Zend_Ldap
Zend_Loader
Zend_Locale
Zend_Log
Zend_Mail
Zend_Measure
Zend_Memory
Zend_Mime
Zend_OpenId
Zend_Paginator
Zend_Pdf
Zend_ProgressBar
Zend_Registry
Zend_Rest
Zend_Search_Lucene
Zend_Server_Reflection
Zend_Akismet
Zend_Amazon
Zend_Audioscrobbler
Zend_Delicious
Zend_Flickr
Zend_Nirvanix
Zend_ReCaptcha
Zend_Simpy
Zend_SlideShare
Zend_StrikeIron
Zend_Technorati
Zend_Twitter
Zend_Yahoo
Zend_Session
Zend_Soap
Zend_Test
Zend_Text
Zend_Timesync
Zend_Translate
Zend_Uri
Zend_Validate
Zend_Version
Zend_View
Zend_Wildfire
Zend_XmlRpc
Zend_XConsoleProcessUnix
Zend_XJQuery

Component categories
• MVC
• Formatting
• Ajax
• Identity, Authentication, and Authorization
• Forms
• Datastore
• Web Services
• Enterprise
• Debugging, Logging, and Testing
• I18n and L10n
• Mail
• Infrastructure

MVC components (you already know these)
• Zend_Controller
• Zend_Layout
• Zend_View

Formatting
• Zend_Text
• Zend_Paginator

Ajax
• Zend_Dojo
• Zend_Json

Identity, authentication, and authorization
• Zend_Acl
• Zend_Auth
• Zend_Infocard
• Zend_OpenId
• Zend_Session

Form and input validation
• Zend_Captcha
• Zend_Form
• Zend_Validate
• Zend_Filter

Database access
• Zend_Db
• Zend_Db_Table
• Zend_Db_Profiler

Web services
• Zend_Feed
• Zend_Gdata
• Zend_Http
• Zend_Rest
• Zend_Server_Reflection
• Zend_Soap
• Zend_Uri
• Zend_XmlRpc

Zend_Service_* clients
• Akismet
• Amazon
• Audioscrobbler
• Delicious
• Flickr
• Nirvanix
• ReCaptcha
• Simpy
• SlideShare
• StrikeIron
• Technorati
• Twitter
• Yahoo

Additional categories
• Zend_Ldap
• Zend_Search_Lucene
• Zend_Pdf

Debugging, logging, and testing
• Zend_Debug
• Zend_Log
• Zend_Test
• Zend_Wildfire

I18n and L10n
• Zend_Currency
• Zend_Calendar
• Zend_Date
• Zend_Locale
• Zend_Measure
• Zend_TimeSync
• Zend_Translate

Mail
• Zend_Mail
• Zend_Mime

Infrastructure
• Zend_Cache
• Zend_Config
• Zend_Console
• Zend_File
• Zend_Loader
• Zend_Memory
• Zend_Registry
• Zend_Version

RegistryRegistry

Registry
• Store global data without polluting the global
scope
 Zend_Registry::set(‘key’, $value);
 Zend_Registry::get(‘key’);
 Useful for storing sessions, configuration data or any data that
could potentially be important on a per-request basis

LoggingLogging

Logging
• Structured, flexible logging class
• Zend_Log has several backends
 Stream (write to a file)
 Firebug
 Mail
 Db
• Example of logging to file system
$writer = new Zend_Log_Writer_Stream('/path/to/logfile');
// Only email warning level entries and higher.
$writer->addFilter(Zend_Log::WARN);
$logger = new Zend_Log($writer);
// later…
$logger->info('Informational message');
$logger->err(‘Error message');
// “Error message”

Logging: Firebug backend
• Zend_Log_Writer_Firebug, Zend_Db_Profiler_Firebug
• Install Firebug and FirePHP in Firefox
// in bootstrap
$logger = new Zend_Log();
$writer = new Zend_Log_Writer_Firebug();
$logger->addWriter($writer);
Zend_Registry::set('logger',$logger);
// in action controller or anywhere
$logger = Zend_Registry::get('logger');
$logger->log(‘Log message', Zend_Log::DEBUG);
$logger->log(‘Info message', Zend_Log::INFO);
$logger->log(‘Warn message', Zend_Log::WARN);
$logger->log(‘Error message', Zend_Log::ERR);

ConfigConfig

Zend_Config
• OO syntax for reading/writing config files
• Internally it’s an array
• Multiple backends
 INI
 XML
• Divide sections with [ ], good for dev/prod
 And hierarchichy with periods after that
• db.params.username = xxxx
• Many components accept Zend_Config object as well as array
 Db
 Forms

Config + Registry
Config.ini:
[dev]
db.adapter = PDO_MYSQL
db.params.username = admin
db.params.password = xxxx
db.params.dbname = appdb
db.params.host = 192.168.9.1
log.filename = /appdev/logs/app.log
$config = new Zend_Config_Ini(realpath(dirname(__FILE__) .
'/../application/config.ini'), 'dev');
$registry = Zend_Registry::getInstance();
$registry->set('config', $config);
$db = Zend_Db::factory($config->db);
Zend_Db_Table::setDefaultAdapter($db);
$registry->set('db', $db);
// create logger; store it in registry
$logFile = $registry->get('config')->log->filename;
$writer = new Zend_Log_Writer_Stream($logFile);
$logger = new Zend_Log($writer);
$registry->set('logger', $logger);

SessionsSessions

Sessions
• Zend_Session does more than PHP’s ext/session
 Namespaces let multiple applications (or sections of application) run in the
same $_SESSION without risking key name collision
 Used by Zend_Auth by default
 Can set data to expire based on time or clicks/requests
$s = new Zend_Session_Namespace(‘myNamespace');
$s->a = 'apple';
$s->p = 'pear';
$s->o = 'orange';
$s->setExpirationSeconds(5, 'a'); // expire only the key "a" in
5 seconds
// expire entire namespace in 5 "hops"
$s->setExpirationHops(5);
$s->setExpirationSeconds(60);
// The "expireAll" namespace will be marked "expired" on
// the first request received after 60 seconds have elapsed,
// or in 5 hops, whichever happens first.

AuthenticationAuthentication

Authentication
• Built over an adapter that implements
Zend_Auth_Adapter_Interface
 Must have an authenticate() method that returns a
Zend_Auth_Result object
• Several pre-defined adapter classes can
authenticate against common data stores
 Zend_Auth_Adapter_Db_Table, Digest, Http, Ldap, Openid
• Zend_Auth_Storage_Session uses a session
namespace of "Zend_Auth" by default

Authentication example
// created db adapter earlier
$dbAdapter=Zend_Registry::get('db');
$authAdapter = new Zend_Auth_Adapter_DbTable($dbAdapter);
$authAdapter
->setTableName('users')
->setIdentityColumn('username')
->setCredentialColumn('password')
;
// Perform the authentication query, saving the result in $_SESSION
$result = $authAdapter->authenticate();
if($result->isValid) {
echo ‘logged in’;
} else {
echo ‘failed’;
}
// Print the result row
print_r($authAdapter->getResultRowObject());
/* Output:
my_username
Array
(
[id] => 1
[username] => my_username
[password] => my_password
[real_name] => My Real Name
)
*/

AuthorizationAuthorization

Authorization
• Classes used
 Zend_Acl_Role
 Zend_Acl_Resource
• Three concepts
 Role
• Assigns particular groups of access to an individual
 Resource
• An object to which access is controlled
• Resources can have privileges (e.g., "create", "read", "update", "delete")
 Access Control List (ACL)
• A hierarchical list that connects role/resource permissions

Authorization
$acl = new Zend_Acl();
$acl->addRole(new Zend_Acl_Role('guest'))
->addRole(new Zend_Acl_Role('member'))
->addRole(new Zend_Acl_Role('admin'));
$parents = array('guest', 'member', 'admin');
$acl->addRole(new Zend_Acl_Role('someUser'), $parents);
$acl->add(new Zend_Acl_Resource('someResource'));
$acl->deny('guest', 'someResource');
$acl->allow('member', 'someResource');
echo $acl->isAllowed('someUser', 'someResource') ?
'allowed' : 'denied';

FormsForms

Zend_Form
• Flexible solution for building forms
• Create in code
 Put it in a model class
• Or create in config file
• Factory pattern lets you determine element type at runtime
• Pass $form to view script, where it’s output
 echo $form; or
 echo $form->ordernum; or
 echo $form->getElement(‘ordernum’);
• Decorators

Zend_Form example
class My_Form extends Zend_Form
{
$form->addElement('text', 'username', array(
'validators' => array(
'alnum',
array('regex', false, '/^[a-z]/i')
),
'required' => true,
'filters' => array('StringToLower'),
));
}
// in your controller…
$form = new My_Form();
$this->view = $form
// in your view…
cho $this->form;

AJAX/DojoAJAX/Dojo

Dojo Integration
Since May 2008
Integration points:
• JSON-RPC Server
• dojo.data Envelopes
• Dojo View Helper
• Dijit integration with Zend_Form & Zend_View
• Dojo Library Re-distribution
• Also JQuery in extras folder
+

Zend_Dojo_Form
class My_Form extends Zend_Dojo_Form
{
protected $_selectOptions = array(
'red' => 'Rouge',
'blue' => 'Bleu',
'white' => 'Blanc',
'orange' => 'Orange',
'black' => 'Noir',
'green' => 'Vert',
);
$this->addElement(
'FilteringSelect',
'filterselect',
array(
'label' => 'FilteringSelect (select)',
'value' => 'blue',
'autocomplete' => false,
'multiOptions' => $this->_selectOptions,
)
)
}

DatabasesDatabases

Databases
• Adapters for various database drivers
 IBM DB2/informix (PDO)
 IBM DB2 and DB2/i5 (IBM i) (non-PDO)
 Firebird/Interbase (non-PDO)
 MS SQL (PDO)
 MySQL (PDO) and MySQLi (non-PDO)
 Oracle (PDO and non-PDO)
 PostgreSQL (PDO)
 SQLite (PDO)
 or build your own by extending Zend_Db_Adapter_Abstract

Databases: connect
$db = new
Zend_Db_Adapter_Pdo_Mysql(array(
'host' => '127.0.0.1',
'username' => 'webuser',
'password' => 'xxxxxxxx',
'dbname' => 'test'
));

Databases
• Several classes give you a good start
 Zend_Db_Adapter_Abstract
• Abstract class for all adapters
• You will most likely use this or concrete implementations
(such as Zend_Db_Adapter_Pdo_Mysql) for your
database access
 Zend_Db_Table
• Gateway class for doing queries on a given table
 Zend_Db_Table_Row
• An instance of a given row
 Zend_Db_Statement

Zend_Db examples
// Using "select" method to select and display
records
$rows = $db->select()->from('CUSTOMERS')
->where('CUSTNO >= 0');
// or write your own SQL with parameters
$sql = 'SELECT * FROM CUSTOMERS WHERE CUSTNO > ? and
CUSTNO < ?';
$rows = $db->fetchAll($sql, array(100, 2000));
// either way, output results
foreach ($rows as $row) {
echo $row['CUSTNO'] . ' ' . $row['CUSTNAME'];
}

Zend_Db_Table example
class Orders extends Zend_Db_Table_Abstract
{
protected $_name = ‘orders';
}
// instantiating your class
$db = Zend_Db::factory('PDO_MYSQL', $options);
// don’t need to specify db if used setDefaultAdapter method earlier
// Zend_Db_Table_Abstract::setDefaultAdapter($db);
$table = new Orders(array('db' => $db));
$data = array(
‘custid' => ‘12345',
‘custname' => ‘Irving Jones’,
);
$table->insert($data);

CachingCaching

Caching
• Frontend
 Core
 Output
 Function
 File
 Class
• Backend
 Apc
 File
 Memcached
 Sqlite
 ZendPlatform

Caching
$frontendOptions = array(
'lifetime' => 7200
);
$backendOptions = array(
'cache_dir' => '../application/cache/'
);
$cache = Zend_Cache::factory(‘Output’, ‘File’,
$frontendOptions, $backendOptions);
if (!($cache->start(‘name-of-cached-item’)) {
// produce output
$cache->end();
}

Unit TestsUnit Tests

Zend_Test_PHPUnit
• Extend Zend_Test_PHPUnit_ControllerTestCase
class User_Controller_Test extends Zend_Test_PHPUnit_ControllerTestCase
{
// ...
public function testCallWithoutActionShouldPullFromIndexAction()
{
$this->dispatch('/user');
$this->assertController('user');
$this->assertAction('index');
}
public function testLoginFormShouldContainLoginAndRegistrationForms()
{
$this->dispatch('/user');
$this->assertQueryCount('form', 2);
}
}

More testing examples
• Valid response codes and login

ValidationValidation

Validation
• Uses the Zend_Validate* classes
$check = new Zend_Validate_Alnum();
if ($check->isValid($GET[‘data’])) {
// do stuff
}
• Each class extends the Zend_Validate_Interface
interface
 You can use the internal validation classes or build your own

Validation
• Pre-defined classes
Alnum
Alpha
Between
Ccnum
Date
Digits
EmailAddress
Float
GreaterThan
Hex
Hostname
InArray
Int
Ip
LessThan
NotEmpty
Regex
StringLength

Web ServicesWeb Services

Client for web services
• Interfaces into web service providers
 Example: Google data
Calendar
Docs
Exif
Feed
Gapps
Gbase
Geo
Media
Photos
Query
Spreadsheets
YouTube

Client classes for web services
• Akismet
• Amazon
• Audioscrobbler
• Delicious
• Flickr
• Nirvanix
• ReCaptcha
• Simpy
• SlideShare
• StrikeIron
• Technorati
• Twitter
• Yahoo

Zend_Service_Yahoo
• Search the web with Yahoo
 Get your application ID from
http://developer.yahoo.com/wsregapp/
 Class uses Zend_Rest_Client under the covers
 Returns Zend_Service_Yahoo_WebResultSet containing
instances of Zend_Service_Yahoo_WebResult
$yahoo = new Zend_Service_Yahoo("YAHOO_APPLICATION_ID");
$results = $yahoo->webSearch('IBM PHP',
array('results' => ‘10',
'start' => 1));
foreach ($results as $result) {
echo '<b>' . $result->Title . '</b> ' . $result->Url . '<br />';
}

Results from $yahoo->webSearch

Other Yahoo search methods
• $yahoo->imageSearch
• $yahoo->videoSearch
• $yahoo->localSearch
• $yahoo->newsSearch

News FeedsNews Feeds

Importing news feeds
• Usage
$feed = Zend_Feed::import($url);
 Returns an instance of Zend_Feed_Abstract
• Implements the Iterator interface
• Understands
 RSS 1.0
 RSS 2.0
 Atom

What’s New?What’s New?

New in ZF 1.7x
• Just a few of the enhancements:
 Performance enhancements in Zend_Loader,
Zend_Controller, and server components
 Zend_Amf component
 Dojo Toolkit 1.2.1
 ZendX_JQuery component
 Zend_Tool in incubator
 Google book search API in Zend_Gdata
 Zend_Db_Table_Select support for Zend_Paginator

What’s Next?What’s Next?

Near future
• From ZF wiki:
 framework.zend.com/wiki/display/ZFPROP/Home
 In Standard Library Incubator
Zend_Action_Controller Directory Tree: Christopher Thompson
Zend_Crypt: Pádraic Brady
Zend_Db Firebird-Interbase support
Zend_MailRead Proposal: Nico Edtinger
Zend_Server Proposal: Davey Shafik
Zend_Uri Improvements: Shahar Evron
Zend_Validate_BarcodeISBN13: Andries Seutens
Zend_Mail_TransportQueue: Simon Mundy
Zend_Controller_Action_Helper_MultiPageForm: Jurriën Stutterheim
Zend_Db_Table_Plugin: Simon Mundy, Jack Sleight
Zend_Queue: Justin Plock
Zend_ Framework Default Project Structure: Wil Sinclair
Zend_FilterStripNewlines: Martin Hujer
Zend_Ascii: Ben Scholzen
Zend_CryptRsa: Pádraic Brady
Zend_Yadis: Pádraic Brady
Zend_Oauth: Pádraic Brady
Zend_View_Helper_Cycle: Kamil Nowakowski
Zend_Gravatar Proposal: Wojciech Naruniec
Zend_RememberTheMilk
Zend_Feed_Reader: Pádraic Brady & Jurriën
Stutterheim
Zend_Image_Barcode: Mickael Perraud & Julien
Pauli
Twitter
Zend_Log factory(): Martin Roest
Zend_LogWriterSyslog: Thomas Gelf
Zend_Json_Expr to allow Javascript Expressions
(functions) to be encoded using Zend_Json
Extended Zend_Ldap Proposal: Stefan Gehrig
Zend_Service_Digg: Luke Crouch
Zend_LogWriterMail
Zend_TagCloud: Ben Scholzen
Zend_LoaderAutoloader: Ralph Schindler
Zend_Markup: Pieter Kokx
Zend_Validate_Db_RecordExists:
Zend_Validate_Db_NoRecordExists: Ryan Mauger
Zend_Controller_Router_Route_Rest: Luke Crouch
Zend_Loader_Autoloader_Resource: Matthew Weier
O'Phinney

Further out in the future
• Emphasis on tooling to create and deploy projects
• Look here:
framework.zend.com/wiki/display/ZFPROP/Home

My goals
• For my own apps
 Write more view helpers
 Refactor pre-1.6 piecemeal Dojo code with ZF’s built-in Dojo
view helpers and form elements
 Replace homegrown database code with Zend_Db classes
• Consistent quoting, escaping, prepared statements, profiler
• And to provide feedback to developers
 Use more of Zend_Form’s power with Zend_Filter and
Zend_Validate.
• My controller actions now do too much
• ZF
 Contribute to Zend_Db_Adapter_Db2

In conclusion…In conclusion…

Zend Framework is…
A use-at-will component framework that is:
• built with OO, PHP 5
• intended to set a high standard for enterprise PHP
• flexible with MVC to put you on right track
• full of components that handle drudgery for you,
and web services, too
• always improving. You can contribute

Resources: books
Books in
Japanese,
German,
Portuguese:

• On the web:
 framework.zend.com/docs/quickstart
 survivethedeepend.com/pdf/survivethedeepend.pdf
 zfforums.com
• Send me your thoughts:
 alan@alanseiden.com
 http://alanseiden.com (my blog)
Resources: online

Questions?
alan@alanseiden.com
See you at TGIF!

Edp bootstrapping a-software_company

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