J3.x

Développement d'un composant MVC - Ajout de catégories

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Joomla! 
3.x
Didacticiel
Développement d'un composant MVC


Ceci est une série qui regroupe plusieurs articles pour devenir un didacticiel sur la façon de développer un Composant pour Joomla! Joomla 3.x suivant le principe Modèle-Vue-Contrôleur.

Commencez avec l'introduction, et naviguez dans les articles de cette série soit à l'aide des boutons de navigation en bas des articles, soit grâce au menu de droite : Les articles de cette série.



Introduction

Ce didacticiel fait partie de la série de didacticiels sur le Développement d'un Composant MVC pour Joomla! 3.x. Vous êtes invité à lire les articles précédents de cette série avant de lire celui-ci. Vous pouvez regarder une vidéo associée à cette étape ici Étape 12, ajout de catégories.

Dans cette étape, nous utiliserons la fonctionnalité Catégories de Joomla pour nous permettre de définir un ensemble de catégories à utiliser avec notre composant Helloworld et pour associer chaque message d'accueil Helloworld à l'une de ces catégories. Une grande partie de cela sera mis en œuvre de manière similaire à d'autres composants, tels que Articles (com_content) et Bannières.

Il y a plusieurs aspects à cela:

  1. We have to link our Helloworld database table with the Joomla Categories table; this will affect our SQL install and update scripts.
  2. We will update our Helloworld Edit form to allow an administrator to associate a category with any of the Helloworld greetings. This will impact the Helloworld Edit form XML definition.
  3. Until now when administrators define a menu item of type Helloworld they are asked to select the greeting to display from the list of available greetings. We'll enhance this list to show the associated category in brackets after the greeting, provided that that greeting has a category defined. This will impact our model FieldList code in admin/models/fields/helloworld.php.
  4. We will allow the administrator to define the Categories which are associated with our Helloworld component. This is functionality which the Joomla com_categories component provides for us automatically. It generates the form which allows administrators to do this – we just have to provide menu links to this form through the submenu described below and through the Components menu, and in addition we must define the access permissions to this functionality.
  5. We will change the Helloworlds form which shows all the Helloworld messages so that the Category associated with each message is displayed. This will impact our model (as we'll have to do a SQL Join with the Categories table in order to get the Category title) and our layout file (where we'll display the associated categories).
  6. We will create a submenu which can slide as a Sidebar in from the left, and which will show two items on the submenu:
    • Messages – which will go to our form with all the Helloworld messages
    • Categories – which will go to the form allowing the administrator to define the set of categories for the Helloworld component.
    This will affect our Helloworlds view (where we'll set up the sidebar) and layout (where we'll display the sidebar), as well as defining the sidebar submenu itself in a new Helper file. We'll also add a line to our main admin helloworld.php file telling Joomla to load and run that helper file.

Important Note (with hindsight). This step builds categories into the helloworld component by allowing them to be optional. This is different from the core Joomla components where a category must be always be defined, and by default items have a category of "uncategorised". If you allow categories to be optional you are likely to encounter difficulties later on because some core Joomla library functions assume that they are mandatory. If this tutorial series is updated for later Joomla versions it would be better to include categories in a way that follows the standard Joomla pattern.

Modification du SQL

Afin de gérer les catégories, nous devons changer les tables SQL. A l'aide de votre éditeur de texte préféré, modifiez le fichier admin/sql/installer.mysql.utf8.sql pour y ajouter ces lignes :

admin/sql/install.mysql.utf8.sql

DROP TABLE IF EXISTS `#__helloworld`;

CREATE TABLE `#__helloworld` (
	`id`       INT(11)     NOT NULL AUTO_INCREMENT,
	`greeting` VARCHAR(25) NOT NULL,
	`published` tinyint(4) NOT NULL,
	`catid`	    int(11)    NOT NULL DEFAULT '0',
	PRIMARY KEY (`id`)
)
	ENGINE =MyISAM
	AUTO_INCREMENT =0
	DEFAULT CHARSET =utf8;

INSERT INTO `#__helloworld` (`greeting`) VALUES
('Hello World!'),
('Good bye World!');

admin/sql/updates/mysql/0.0.12.sql

ALTER TABLE `#__helloworld` ADD `catid` int(11) NOT NULL DEFAULT '0';

Modification du formulaire

Un message HelloWorld peut désormais appartenir à une catégorie. Il nous faut maintenant modifier le formulaire d'édition. Dans le fichier admin/models/forms/helloworld.xml, ajoutez ces lignes :

admin/models/forms/helloworld.xml

<?xml version="1.0" encoding="utf-8"?>
<form
				addrulepath="/administrator/components/com_helloworld/models/rules"
>
	<fieldset>
		<field
				name="id"
				type="hidden"
				/>
		<field
				name="greeting"
				type="text"
				label="COM_HELLOWORLD_HELLOWORLD_GREETING_LABEL"
				description="COM_HELLOWORLD_HELLOWORLD_GREETING_DESC"
				size="40"
				class="inputbox validate-greeting"
				validate="greeting"
				required="true"
				default=""
				/>
		<field
				name="catid"
				type="category"
				extension="com_helloworld"
				class="inputbox"
				default=""
				label="COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_LABEL"
				description="COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_DESC"
				required="true"
		>
			<option value="0">JOPTION_SELECT_CATEGORY</option>
		</field>
	</fieldset>
</form>

Notez que la catégorie peut être 0 (c'est à dire aucune catégorie).

Modification du type de menu

Le type de menu HelloWorld affiche une liste déroulante de tous les messages. Si le message est catégorisé, il nous faut ajouter la catégorie à cet affichage.

Dans le fichier admin/models/fields/helloworld.php, ajoutez ces lignes :

admin/models/fields/helloworld.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

JFormHelper::loadFieldClass('list');

/**
 * HelloWorld Form Field class for the HelloWorld component
 *
 * @since  0.0.1
 */
class JFormFieldHelloWorld extends JFormFieldList
{
	/**
	 * The field type.
	 *
	 * @var         string
	 */
	protected $type = 'HelloWorld';

	/**
	 * Method to get a list of options for a list input.
	 *
	 * @return  array  An array of JHtml options.
	 */
	protected function getOptions()
	{
		$db    = JFactory::getDBO();
		$query = $db->getQuery(true);
		$query->select('#__helloworld.id as id,greeting,#__categories.title as category,catid');
		$query->from('#__helloworld');
		$query->leftJoin('#__categories on catid=#__categories.id');
		// Retrieve only published items
		$query->where('#__helloworld.published = 1');
		$db->setQuery((string) $query);
		$messages = $db->loadObjectList();
		$options  = array();

		if ($messages)
		{
			foreach ($messages as $message)
			{
				$options[] = JHtml::_('select.option', $message->id, $message->greeting .
				                      ($message->catid ? ' (' . $message->category . ')' : ''));
			}
		}

		$options = array_merge(parent::getOptions(), $options);

		return $options;
	}
}

Cela permet désormais d'afficher la catégorie entre parenthèses. Remarque : nous avons également ajouté une clause where pour pouvoir filtrer les éléments non publiés.

Gestion du sous-menu

Le composant com_categories permet de définir le sous-menu à l'aide d'un fichier helper. A l'aide de votre gestionnaire de fichiers et éditeur préférés, ajoutez un fichier admin/helpers/helloworld.php contenant ces lignes :

admin/helpers/helloworld.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

/**
 * HelloWorld component helper.
 *
 * @param   string  $submenu  The name of the active view.
 *
 * @return  void
 *
 * @since   1.6
 */
abstract class HelloWorldHelper extends JHelperContent
{
	/**
	 * Configure the Linkbar.
	 *
	 * @return Bool
	 */

	public static function addSubmenu($submenu) 
	{
		JHtmlSidebar::addEntry(
			JText::_('COM_HELLOWORLD_SUBMENU_MESSAGES'),
			'index.php?option=com_helloworld',
			$submenu == 'helloworlds'
		);

		JHtmlSidebar::addEntry(
			JText::_('COM_HELLOWORLD_SUBMENU_CATEGORIES'),
			'index.php?option=com_categories&view=categories&extension=com_helloworld',
			$submenu == 'categories'
		);

		// Set some global property
		$document = JFactory::getDocument();
		$document->addStyleDeclaration('.icon-48-helloworld ' .
										'{background-image: url(../media/com_helloworld/images/tux-48x48.png);}');
		if ($submenu == 'categories') 
		{
			$document->setTitle(JText::_('COM_HELLOWORLD_ADMINISTRATION_CATEGORIES'));
		}
	}
}

REMARQUE : vous DEVEZ utiliser le nom de votre composant (sans le com_) pour le nom du fichier helper, sinon vos sous-menus ne s'afficheront pas dans la vue de catégories.

Pour importe la classe helper, ajoutez ces lignes au fichier admin/helloworld.php :

admin/helloworld.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

// Set some global property
$document = JFactory::getDocument();
$document->addStyleDeclaration('.icon-helloworld {background-image: url(../media/com_helloworld/images/tux-16x16.png);}');

// Require helper file
JLoader::register('HelloWorldHelper', JPATH_COMPONENT . '/helpers/helloworld.php');

// Get an instance of the controller prefixed by HelloWorld
$controller = JControllerLegacy::getInstance('HelloWorld');

// Perform the Request task
$input = JFactory::getApplication()->input;
$controller->execute($input->getCmd('task'));

// Redirect if set by the controller
$controller->redirect();

Cette fonction sera appelée automatiquement par le composant com_categories. A noter que cela va :

  • modifier le sous-menu,
  • modifier certaines propriétés css (pour l'affichage des icônes),
  • changer le titre du navigateur, si le sous-menu est catégories,
  • modifier le titre et ajouter un bouton préférences.

La classe css .icon-48-helloworld est désormais définie dans la fonction addSubmenu. Il nous faut maintenant appeler cette fonction dans la vue helloworlds :

admin/views/helloworlds/view.html.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access to this file
defined('_JEXEC') or die('Restricted access');

/**
 * HelloWorlds View
 *
 * @since  0.0.1
 */
class HelloWorldViewHelloWorlds extends JViewLegacy
{
	/**
	 * Display the Hello World view
	 *
	 * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
	 *
	 * @return  void
	 */

	function display($tpl = null)
	{
		
		// Get application
		$app = JFactory::getApplication();
		$context = "helloworld.list.admin.helloworld";
		// Get data from the model
		$this->items			= $this->get('Items');
		$this->pagination		= $this->get('Pagination');
		$this->state			= $this->get('State');
		$this->filter_order 	= $app->getUserStateFromRequest($context.'filter_order', 'filter_order', 'greeting', 'cmd');
		$this->filter_order_Dir = $app->getUserStateFromRequest($context.'filter_order_Dir', 'filter_order_Dir', 'asc', 'cmd');
		$this->filterForm    	= $this->get('FilterForm');
		$this->activeFilters 	= $this->get('ActiveFilters');

		// Check for errors.
		if (count($errors = $this->get('Errors')))
		{
			JError::raiseError(500, implode('<br />', $errors));

			return false;
		}

		// Set the submenu
		HelloWorldHelper::addSubmenu('helloworlds');

		// Set the toolbar and number of found items
		$this->addToolBar();

		// Display the template
		parent::display($tpl);

		// Set the document
		$this->setDocument();
	}

	/**
	 * Add the page title and toolbar.
	 *
	 * @return  void
	 *
	 * @since   1.6
	 */
	protected function addToolBar()
	{
		$title = JText::_('COM_HELLOWORLD_MANAGER_HELLOWORLDS');

		if ($this->pagination->total)
		{
			$title .= "<span style='font-size: 0.5em; vertical-align: middle;'>(" . $this->pagination->total . ")</span>";
		}

		JToolBarHelper::title($title, 'helloworld');
		JToolBarHelper::addNew('helloworld.add');
		JToolBarHelper::editList('helloworld.edit');
		JToolBarHelper::deleteList('', 'helloworlds.delete');
	}
	/**
	 * Method to set up the document properties
	 *
	 * @return void
	 */
	protected function setDocument() 
	{
		$document = JFactory::getDocument();
		$document->setTitle(JText::_('COM_HELLOWORLD_ADMINISTRATION'));
	}
}

Getting the associated category titles

Update the helloworlds model so that it does a SQL join with the Joomla Categories table to find the associated category title.

admin/models/helloworlds.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */
// No direct access to this file
defined('_JEXEC') or die('Restricted access');

/**
 * HelloWorldList Model
 *
 * @since  0.0.1
 */
class HelloWorldModelHelloWorlds extends JModelList
{
	/**
	 * Constructor.
	 *
	 * @param   array  $config  An optional associative array of configuration settings.
	 *
	 * @see     JController
	 * @since   1.6
	 */
	public function __construct($config = array())
	{
		if (empty($config['filter_fields']))
		{
			$config['filter_fields'] = array(
				'id',
				'greeting',
				'published'
			);
		}

		parent::__construct($config);
	}

	/**
	 * Method to build an SQL query to load the list data.
	 *
	 * @return      string  An SQL query
	 */
	protected function getListQuery()
	{
		// Initialize variables.
		$db    = JFactory::getDbo();
		$query = $db->getQuery(true);

		// Create the base select statement.
		$query->select('a.id as id, a.greeting as greeting, a.published as published')
			  ->from($db->quoteName('#__helloworld', 'a'));

		// Join over the categories.
		$query->select($db->quoteName('c.title', 'category_title'))
			->join('LEFT', $db->quoteName('#__categories', 'c') . ' ON c.id = a.catid');

		// Filter: like / search
		$search = $this->getState('filter.search');

		if (!empty($search))
		{
			$like = $db->quote('%' . $search . '%');
			$query->where('greeting LIKE ' . $like);
		}

		// Filter by published state
		$published = $this->getState('filter.published');

		if (is_numeric($published))
		{
			$query->where('a.published = ' . (int) $published);
		}
		elseif ($published === '')
		{
			$query->where('(a.published IN (0, 1))');
		}

		// Add the list ordering clause.
		$orderCol	= $this->state->get('list.ordering', 'greeting');
		$orderDirn 	= $this->state->get('list.direction', 'asc');

		$query->order($db->escape($orderCol) . ' ' . $db->escape($orderDirn));

		return $query;
	}
}

Mise à jour de la mise en page

Mettez à jour le fichier de mise en page helloworlds pour afficher la barre latérale et la catégorie associée au message d'accueil.

admin/views/helloworlds/tmpl/default.php

<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_helloworld
 *
 * @copyright   Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access to this file
defined('_JEXEC') or die('Restricted Access');

JHtml::_('formbehavior.chosen', 'select');

$listOrder     = $this->escape($this->filter_order);
$listDirn      = $this->escape($this->filter_order_Dir);
?>
<form action="index.php?option=com_helloworld&view=helloworlds" method="post" id="adminForm" name="adminForm">
	<div id="j-sidebar-container" class="span2">
		<?php echo JHtmlSidebar::render(); ?>
	</div>
	<div id="j-main-container" class="span10">
		<div class="row-fluid">
			<div class="span6">
				<?php echo JText::_('COM_HELLOWORLD_HELLOWORLDS_FILTER'); ?>
				<?php
					echo JLayoutHelper::render(
						'joomla.searchtools.default',
						array('view' => $this)
					);
				?>
			</div>
		</div>
		<table class="table table-striped table-hover">
			<thead>
			<tr>
				<th width="1%"><?php echo JText::_('COM_HELLOWORLD_NUM'); ?></th>
				<th width="2%">
					<?php echo JHtml::_('grid.checkall'); ?>
				</th>
				<th width="90%">
					<?php echo JHtml::_('grid.sort', 'COM_HELLOWORLD_HELLOWORLDS_NAME', 'greeting', $listDirn, $listOrder); ?>
				</th>
				<th width="5%">
					<?php echo JHtml::_('grid.sort', 'COM_HELLOWORLD_PUBLISHED', 'published', $listDirn, $listOrder); ?>
				</th>
				<th width="2%">
					<?php echo JHtml::_('grid.sort', 'COM_HELLOWORLD_ID', 'id', $listDirn, $listOrder); ?>
				</th>
			</tr>
			</thead>
			<tfoot>
				<tr>
					<td colspan="5">
						<?php echo $this->pagination->getListFooter(); ?>
					</td>
				</tr>
			</tfoot>
			<tbody>
				<?php if (!empty($this->items)) : ?>
					<?php foreach ($this->items as $i => $row) :
						$link = JRoute::_('index.php?option=com_helloworld&task=helloworld.edit&id=' . $row->id);
					?>
						<tr>
							<td><?php echo $this->pagination->getRowOffset($i); ?></td>
							<td>
								<?php echo JHtml::_('grid.id', $i, $row->id); ?>
							</td>
							<td>
								<a href="<?php echo $link; ?>" title="<?php echo JText::_('COM_HELLOWORLD_EDIT_HELLOWORLD'); ?>">
									<?php echo $row->greeting; ?>
								</a>
								<div class="small">
									<?php echo JText::_('JCATEGORY') . ': ' . $this->escape($row->category_title); ?>
								</div>
							</td>
							<td align="center">
								<?php echo JHtml::_('jgrid.published', $row->published, $i, 'helloworlds.', true, 'cb'); ?>
							</td>
							<td align="center">
								<?php echo $row->id; ?>
							</td>
						</tr>
					<?php endforeach; ?>
				<?php endif; ?>
			</tbody>
		</table>
		<input type="hidden" name="task" value=""/>
		<input type="hidden" name="boxchecked" value="0"/>
		<input type="hidden" name="filter_order" value="<?php echo $listOrder; ?>"/>
		<input type="hidden" name="filter_order_Dir" value="<?php echo $listDirn; ?>"/>
		<?php echo JHtml::_('form.token'); ?>
	</div>
</form>

Ajout d'ACL

admin/access.xml

<?xml version="1.0" encoding="utf-8" ?>
<access component="com_helloworld">
	<section name="component">
		<action name="core.admin" title="JACTION_ADMIN" description="JACTION_ADMIN_COMPONENT_DESC" />
		<action name="core.manage" title="JACTION_MANAGE" description="JACTION_MANAGE_COMPONENT_DESC" />
		<action name="core.create" title="JACTION_CREATE" description="JACTION_CREATE_COMPONENT_DESC" />
		<action name="core.delete" title="JACTION_DELETE" description="JACTION_DELETE_COMPONENT_DESC" />
		<action name="core.edit" title="JACTION_EDIT" description="JACTION_EDIT_COMPONENT_DESC" />
	</section>
	<section name="message">
		<action name="core.delete" title="JACTION_DELETE" description="COM_HELLOWORLD_ACCESS_DELETE_DESC" />
		<action name="core.edit" title="JACTION_EDIT" description="COM_HELLOWORLD_ACCESS_EDIT_DESC" />
	</section>
</access>

REMARQUE : Si vous n'ajoutez pas ce fichier, les boutons Nouveau, Modifier et ... ne s'afficheront pas dans la vue de catégorie. Pour plus d'informations, veuillez consulter la section Ajout d'ACL, accessible depuis le haut de cette page.

Ajout de chaînes de traduction

Certains chaînes sont à traduire. Dans le fichier admin/language/en-GB/en-GB.com_helloworld.ini, ajoutez ces lignes :

admin/language/en-GB/en-GB.com_helloworld.ini

; Joomla! Project
; Copyright (C) 2005 - 2018 Open Source Matters. All rights reserved.
; License GNU General Public License version 2 or later; see LICENSE.txt, see LICENSE.php
; Note : All ini files need to be saved as UTF-8

COM_HELLOWORLD_ADMINISTRATION="HelloWorld - Administration"
COM_HELLOWORLD_ADMINISTRATION_CATEGORIES="HelloWorld - Categories"
COM_HELLOWORLD_NUM="#"
COM_HELLOWORLD_HELLOWORLDS_FILTER="Filters"
COM_HELLOWORLD_PUBLISHED="Published"
COM_HELLOWORLD_HELLOWORLDS_NAME="Name"
COM_HELLOWORLD_ID="Id"

COM_HELLOWORLD_HELLOWORLD_CREATING="HelloWorld - Creating"
COM_HELLOWORLD_HELLOWORLD_DETAILS="Details"
COM_HELLOWORLD_HELLOWORLD_EDITING="HelloWorld - Editing"
COM_HELLOWORLD_HELLOWORLD_ERROR_UNACCEPTABLE="Some values are unacceptable"
COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_DESC="The category the messages belongs to"
COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_LABEL="Category"
COM_HELLOWORLD_HELLOWORLD_FIELD_GREETING_DESC="This message will be displayed"
COM_HELLOWORLD_HELLOWORLD_FIELD_GREETING_LABEL="Message"
COM_HELLOWORLD_HELLOWORLD_HEADING_GREETING="Greeting"
COM_HELLOWORLD_HELLOWORLD_HEADING_ID="Id"
COM_HELLOWORLD_MANAGER_HELLOWORLD_EDIT="HelloWorld manager: Edit Message"
COM_HELLOWORLD_MANAGER_HELLOWORLD_NEW="HelloWorld manager: New Message"
COM_HELLOWORLD_MANAGER_HELLOWORLDS="HelloWorld manager"
COM_HELLOWORLD_EDIT_HELLOWORLD="Edit message"
COM_HELLOWORLD_N_ITEMS_DELETED_1="One message deleted"
COM_HELLOWORLD_N_ITEMS_DELETED_MORE="%d messages deleted"
COM_HELLOWORLD_N_ITEMS_PUBLISHED="%d message(s) published"
COM_HELLOWORLD_N_ITEMS_UNPUBLISHED="%d message(s) unpublished"
COM_HELLOWORLD_HELLOWORLD_GREETING_LABEL="Greeting"
COM_HELLOWORLD_HELLOWORLD_GREETING_DESC="Add Hello World Greeting"
COM_HELLOWORLD_SUBMENU_MESSAGES="Messages"
COM_HELLOWORLD_SUBMENU_CATEGORIES="Categories"

Empaqueter le composant

Contenu de votre répertoire de code. Chaque lien ci-dessous vous emmène vers l'étape du didacticiel qui contient la dernière version du code source de ce fichier.

Créez un fichier compressé de ce répertoire ou téléchargez directement l'archive et installez-le en utilisant le gestionnaire des extensions Joomla. Vous pouvez ajouter un lien de menu pour ce composant à l'aide du gestionnaire de menus dans le backend.

helloworld.xml

<?xml version="1.0" encoding="utf-8"?>
<extension type="component" version="3.0" method="upgrade">

	<name>COM_HELLOWORLD</name>
	<!-- The following elements are optional and free of formatting constraints -->
	<creationDate>January 2018</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>0.0.12</version>
	<!-- The description is optional and defaults to the name -->
	<description>COM_HELLOWORLD_DESCRIPTION</description>

	<install> <!-- Runs on install -->
		<sql>
			<file driver="mysql" charset="utf8">sql/install.mysql.utf8.sql</file>
		</sql>
	</install>
	<uninstall> <!-- Runs on uninstall -->
		<sql>
			<file driver="mysql" charset="utf8">sql/uninstall.mysql.utf8.sql</file>
		</sql>
	</uninstall>
	<update> <!-- Runs on update; New since J2.5 -->
		<schemas>
			<schemapath type="mysql">sql/updates/mysql</schemapath>
		</schemas>
	</update>

	<!-- 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>index.html</filename>
		<filename>helloworld.php</filename>
		<filename>controller.php</filename>
		<folder>views</folder>
		<folder>models</folder>
	</files>

        <languages folder="site/language">
		<language tag="en-GB">en-GB/en-GB.com_helloworld.ini</language>
        </languages>

	<media destination="com_helloworld" folder="media">
		<filename>index.html</filename>
		<folder>images</folder>
	</media>

	<administration>
		<!-- Administration Menu Section -->
		<menu link='index.php?option=com_helloworld' img="../media/com_helloworld/images/tux-16x16.png">COM_HELLOWORLD_MENU</menu>
		<!-- Administration 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 /admin/ in the package -->
		<files folder="admin">
			<!-- Admin Main File Copy Section -->
			<filename>index.html</filename>
			<filename>helloworld.php</filename>
			<filename>controller.php</filename>
			<filename>access.xml</filename>
			<!-- SQL files section -->
			<folder>sql</folder>
			<!-- tables files section -->
			<folder>tables</folder>
			<!-- models files section -->
			<folder>models</folder>
			<!-- views files section -->
			<folder>views</folder>
			<!-- controllers files section -->
			<folder>controllers</folder>
			<!-- helpers files section -->
			<folder>helpers</folder>
		</files>
		<languages folder="admin/language">
        		<language tag="en-GB">en-GB/en-GB.com_helloworld.ini</language>
                        <language tag="en-GB">en-GB/en-GB.com_helloworld.sys.ini</language>
		</languages>
	</administration>

</extension>

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