Joomla! Components - Uma visão geral
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This document provides an overview of Joomla components. It discusses PHP and object-oriented programming concepts like classes, objects and the MVC pattern. It then explains how to create a basic "Hello World" Joomla component with 5 required files - a controller, view files and an XML installation file. The document is intended to introduce developers to creating Joomla components.
Joomla! Components - Uma visão geral
- 1. Joomla! Components (Uma Visão Geral) René Muniz Desenvolvedor Joomla! Fábrica Livre
- 2. Por que?
- 3. Conceitos • PHP (Doh!) • OOP (Programação Orientada a Objetos) • MVC (Model-View-Controller) • Joomla! Framework
- 4. Programação Orientada a Objetos (OOP)
- 5. Objeto
- 6. 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); Classe StarFighter
- 12. Joomla!
- 13. 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
- 14. Getting Started Hello World!
- 15. Criando um componente Para um componente básico são necessários 5 arquivos • site/hello.php • site/controller.php • site/views/hello/view.html.php • site/views/hello/tmpl/default.php • hello.xml
- 16. index.php?option=com_hello&view=hello /** * @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 access defined( '_JEXEC' ) or die( 'Restricted access' ); // Require the base controller require_once( JPATH_COMPONENT.DS.'controller.php' ); // Require specific controller if requested if($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 $controller->redirect(); site/hello.php
- 17. /** * @package Joomla.Tutorials * @subpackage Components * @link http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1 * @license GNU/GPL */ // No direct access defined( '_JEXEC' ) or die( 'Restricted access' ); jimport('joomla.application.component.controller'); /** * Hello World Component Controller * * @package Joomla.Tutorials * @subpackage Components */ class HelloController extends JController { /** * Method to display the view * * @access public */ function display() { parent::display(); } } site/controller.php
- 18. /** * @package Joomla.Tutorials * @subpackage Components * @link http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1 * @license GNU/GPL */ // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); jimport( 'joomla.application.component.view' ); /** * HTML View class for the HelloWorld Component * * @package HelloWorld */ class HelloViewHello extends JView { function display($tpl = null) { $greeting = "Hello World!"; $this->assignRef( 'greeting', $greeting ); parent::display($tpl); } } site/views/hello/view.html.php
- 19. <?php // No direct access defined( '_JEXEC' ) or die( 'Restricted access' ); ?> <h1><?php echo $this->greeting; ?></h1> site/views/hello/tmpl/default.php
- 20. <?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>[email protected]</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
- 21. Perguntas? [email protected] http://docs.joomla.org/Developing_a_Model-View-Controller_Component_-_Part_1