Joomla!Components

(Uma Visão Geral)

René MunizDesenvolvedor Joomla!Fábrica Livre

Por que?

• PHP (Doh!)

• OOP (Programação Orientada a Objetos)

• MVC (Model-View-Controller)

• Joomla! Framework

Conceitos

Programação Orientada a Objetos (OOP)

Objeto

Classe StarFighter

class StarFighter{

public $size;public $color;public $wings;public $droid;public $guns = array();

function accelerate() {/* Procedure to accelerate here */

}

function shoot() {/* Procedure to shoot something here */

}}

$XWing = new StarFighter();$XWing->size = "2.2 metters";$XWing->color = "#FFFFFF";$XWing->wings = "4";$XWing->droid = "1";$XWing->guns = array("regular" => 4, "bomb" => 1);

Model-View-Controller

Modelo == Objeto

View == Interface

Controller == Regras

Joomla! Framework

Joomla!

Joomla’s API(http://api.joomla.org)

JFactory, JRoute, JText, JVersion, JApplication, JApplicationHelper, JComponentHelper, JController, JMenu, JModel, JModuleHelper, JPathway, JRouter, JView, JObject, JObservable, JObserver, JTree, JNode, JCache, JCacheCallback, JCacheOutput, JCachePage, JCacheStorage, JCacheStorageApc, JCacheStorageEaccelerator, JCacheStorageFile, JCacheStorageMemcache, JCacheStorageXCache, JCacheView, JClientHelper, JFTP, JLDAP, JDatabase, JDatabaseMySQL, JDatabaseMySQLi, JRecordSet, JTable, JTableARO, JTableAROGroup, JTableCategory, JTableComponent, JTableContent, JTableMenu, JTableMenuTypes, JTableModule, JTablePlugin, JTableSection, JTableSession, JTableUser, JDocument, JDocumentError, JDocumentFeed, JDocumentHTML, JDocumentPDF, JDocumentRaw, JDocumentRenderer, JDocumentRendererAtom, JDocumentRendererComponent, JDocumentRendererHead, J D o c u m e n t R e n d e r e r M e s s a g e , JDocumentRendererModule, JDocumentRendererModules, JDocumentRendererRSS, JBrowser, JRequest, JResponse, JURI, JError, JException, JLog, JProfiler, JDispatcher, JEvent, JArchive, JArchiveBzip2, JArchiveGzip, JArchiveTar, JArchiveZip, JFile, JFolder, JPath, JFilterInput, JFilterOutput, JButton, JButtonConfirm, JButtonCustom, JButtonHelp, JButtonLink, JButtonPopup, JButtonSeparator, JButtonStandard, JEditor, JElement, JElementCalendar, JElementCategory, JElementEditors, JElementFileList, JElementFolderList, JElementHelpsites, JElementHidden, JElementImageList, JElementLanguages, JElementList, JElementMenu, JElementMenuItem, JElementPassword, JElementRadio, JElementSection, JElementSpacer, JElementSQL, JElementText, JElementTextarea, JElementTimezones, JElementUserGroup, JHtml, JHtmlBehavior, JHtmlContent, JHtmlEmail, JHtmlForm, JHtmlGrid, JHtmlImage, JHtmlList, JHtmlMenu, JHtmlSelect, JPagination, JPane, JParameter, JToolBar, JInstaller, JInstallerComponent, JInstallerHelper, JInstallerLanguage, JInstallerModule, JInstallerPlugin, JInstallerTemplate, JHelp, JLanguageHelper, JLanguage, JMailHelper, JMail, JPluginHelper, JPlugin, JRegistry, JRegistryFormat, JRegistryFormatINI, JRegistryFormatPHP, JRegistryFormatXML, JSession, JSessionStorage, JSessionStorageApc, JSessionStorageDatabase, JSessionStorageEaccelerator, JSessionStorageMemcache, JSessionStorageNone, JSessionStorageXcache, JAuthentication, JAuthorization, JUserHelper, JUser, JArrayHelper, JBuffer, JDate, JSimpleCrypt, JSimpleXML, JSimpleXMLElement, JString, JUtility

Getting StartedHello World!

Criando um componente

• site/hello.php

• site/controller.php

• site/views/hello/view.html.php

• site/views/hello/tmpl/default.php

• hello.xml

Para um componente básicosão necessários 5 arquivos

/** * @package Joomla.Tutorials * @subpackage Components * components/com_hello/hello.php * @link http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1 * @license GNU/GPL*/ // No direct accessdefined( '_JEXEC' ) or die( 'Restricted access' ); // Require the base controller

require_once( JPATH_COMPONENT.DS.'controller.php' ); // Require specific controller if requestedif($controller = JRequest::getWord('controller')) { $path = JPATH_COMPONENT.DS.'controllers'.DS.$controller.'.php'; if (file_exists($path)) { require_once $path; } else { $controller = ''; }} // Create the controller$classname = 'HelloController'.$controller;$controller = new $classname( ); // Perform the Request task$controller->execute( JRequest::getVar( 'task' ) ); // Redirect if set by the controller$controller->redirect();

index.php?option=com_hello&view=hello

site/hello.php

/** * @package Joomla.Tutorials * @subpackage Components * @link http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1 * @license GNU/GPL */ // No direct accessdefined( '_JEXEC' ) or die( 'Restricted access' );

jimport('joomla.application.component.controller'); /** * Hello World Component Controller * * @package Joomla.Tutorials * @subpackage Components */class HelloController extends JController{ /** * Method to display the view * * @access public */ function display() { parent::display(); }}

site/controller.php

/** * @package Joomla.Tutorials * @subpackage Components * @link http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1 * @license GNU/GPL*/ // no direct accessdefined( '_JEXEC' ) or die( 'Restricted access' ); jimport( 'joomla.application.component.view' ); /** * HTML View class for the HelloWorld Component * * @package HelloWorld */class HelloViewHello extends JView{ function display($tpl = null) { $greeting = "Hello World!"; $this->assignRef( 'greeting', $greeting ); parent::display($tpl); }}

site/views/hello/view.html.php

<?php// No direct accessdefined( '_JEXEC' ) or die( 'Restricted access' );?>

<h1><?php echo $this->greeting; ?></h1>

site/views/hello/tmpl/default.php

<?xml version="1.0" encoding="utf-8"?><install type="component" version="1.5.0"> <name>Hello</name> <!-- The following elements are optional and free of formatting constraints --> <creationDate>2007-02-22</creationDate> <author>John Doe</author> <authorEmail>john.doe@example.org</authorEmail> <authorUrl>http://www.example.org</authorUrl> <copyright>Copyright Info</copyright> <license>License Info</license> <!-- The version string is recorded in the components table --> <version>1.01</version> <!-- The description is optional and defaults to the name --> <description>Description of the component ...</description> <!-- Site Main File Copy Section --> <!-- Note the folder attribute: This attribute describes the folder to copy FROM in the package to install therefore files copied in this section are copied from /site/ in the package --> <files folder="site"> <filename>controller.php</filename> <filename>hello.php</filename> <filename>index.html</filename> <filename>views/index.html</filename> <filename>views/hello/index.html</filename> <filename>views/hello/view.html.php</filename> <filename>views/hello/tmpl/default.php</filename> <filename>views/hello/tmpl/index.html</filename> </files></install>

site/views/hello/tmpl/default.php

Perguntas?rene.muniz@fabricalivre.com.br

http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1