Archived

Difference between revisions of "Developing a MVC Component/Adding decorations to the backend"

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< Archived:Developing a MVC Component
(protected functions should not use underscores)
Line 47: Line 47:
 
$this->pagination = $pagination;
 
$this->pagination = $pagination;
 
// Set the toolbar
 
// Set the toolbar
$this->_setToolBar();
+
$this->setToolBar();
 
// Display the template
 
// Display the template
 
parent::display($tpl);
 
parent::display($tpl);
 
// Set the document
 
// Set the document
$this->_setDocument();
+
$this->setDocument();
 
}
 
}
 
/**
 
/**
 
* Setting the toolbar
 
* Setting the toolbar
 
*/
 
*/
protected function _setToolBar()
+
protected function setToolBar()
 
{
 
{
 
JToolBarHelper::title(JText::_('com_helloworld_Manager'), 'helloworld');
 
JToolBarHelper::title(JText::_('com_helloworld_Manager'), 'helloworld');
Line 68: Line 68:
 
* @return void
 
* @return void
 
*/
 
*/
protected function _setDocument()  
+
protected function setDocument()  
 
{
 
{
 
JFactory::getDocument()->setTitle(JText::_('com_helloworld_Administration'));
 
JFactory::getDocument()->setTitle(JText::_('com_helloworld_Administration'));
Line 113: Line 113:
 
$this->form = $form;
 
$this->form = $form;
 
// Set the toolbar
 
// Set the toolbar
$this->_setToolBar();
+
$this->setToolBar();
 
// Display the template
 
// Display the template
 
parent::display($tpl);
 
parent::display($tpl);
 
// Set the document
 
// Set the document
$this->_setDocument();
+
$this->setDocument();
 
}
 
}
 
/**
 
/**
 
* Setting the toolbar
 
* Setting the toolbar
 
*/
 
*/
protected function _setToolBar()  
+
protected function setToolBar()  
 
{
 
{
 
JRequest::setVar('hidemainmenu', 1);
 
JRequest::setVar('hidemainmenu', 1);
Line 135: Line 135:
 
* @return void
 
* @return void
 
*/
 
*/
protected function _setDocument()  
+
protected function setDocument()  
 
{
 
{
 
$isNew = ($this->form->getValue('id') < 1);
 
$isNew = ($this->form->getValue('id') < 1);

Revision as of 18:50, 14 May 2010

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Template:Future

Articles in this series[edit]


Introduction[edit]

This tutorial is part of the Developing a Model-View-Controller (MVC) Component for Joomla!1.6 tutorial. You are encouraged to read the previous parts of the tutorial before reading this.

Adding some icons[edit]

With your favorite file manager put a 16x16 image and a 48x48 image (I choose tux) in a media/images/ folder and add a media tag in your install file. Modify the menu tag in order to use the new icon.

Modifying the views[edit]

In the admin/views/helloworldlist/view.html.php file put these lines:

admin/views/helloworldlist/view.html.php

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
// import Joomla view library
jimport('joomla.application.component.view');
/**
 * HelloWorldList View
 */
class HelloWorldViewHelloWorldList extends JView {
	/**
	 * items to be displayed
	 */
	protected $items;
	/**
	 * pagination for the items
	 */
	protected $pagination;
	/**
	 * HelloWorldList view display method
	 * @return void
	 */
	function display($tpl = null)
	{
		// Get data from the model
		$items = $this->get('Items');
		$pagination = $this->get('Pagination');
		// Assign data to the view
		$this->items = $items;
		$this->pagination = $pagination;
		// Set the toolbar
		$this->setToolBar();
		// Display the template
		parent::display($tpl);
		// Set the document
		$this->setDocument();
	}
	/**
	 * Setting the toolbar
	 */
	protected function setToolBar()
	{
		JToolBarHelper::title(JText::_('com_helloworld_Manager'), 'helloworld');
		JToolBarHelper::deleteListX('com_helloworld_HelloWorldList_Are_you_sure_you_want_to_delete_these_greetings', 'helloworldlist.remove');
		JToolBarHelper::editListX('helloworld.edit');
		JToolBarHelper::addNewX('helloworld.add');
	}
	/**
	 * Method to set up the document properties
	 *
	 * @return void
	 */
	protected function setDocument() 
	{
		JFactory::getDocument()->setTitle(JText::_('com_helloworld_Administration'));
	}
}

This view uses a second parameter for the JToolBarHelper::title function. It will be used to construct the css class for the title. The _setDocument method set the browser title.

In admin/views/helloworld/view.html.php, put these lines: admin/views/helloworld/view.html.php

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
// import Joomla view library
jimport('joomla.application.component.view');
/**
 * HelloWorld View
 */
class HelloWorldViewHelloWorld extends JView
{
	/**
	 * View form
	 *
	 * @var		form
	 */
	protected $form = null;
	/**
	 * display method of Hello view
	 * @return void
	 */
	public function display($tpl = null) 
	{
		// get the Form
		$form = & $this->get('Form');
		// get the Data
		$data = & $this->get('Data');
		// Bind the Data
		$form->bind($data);
		// Assign the form
		$this->form = $form;
		// Set the toolbar
		$this->setToolBar();
		// Display the template
		parent::display($tpl);
		// Set the document
		$this->setDocument();
	}
	/**
	 * Setting the toolbar
	 */
	protected function setToolBar() 
	{
		JRequest::setVar('hidemainmenu', 1);
		$isNew = ($this->form->getValue('id') < 1);
		JToolBarHelper::title(JText::_('com_helloworld_Manager') . ': <small><small>[ ' . ($isNew ? JText::_('JToolBar_New') : JText::_('JToolBar_Edit')) . ' ]</small></small>', 'helloworld');
		JToolBarHelper::save('helloworld.save');
		JToolBarHelper::cancel('helloworld.cancel', $isNew ? 'JToolBar_Cancel' : 'JToolBar_Close');
	}
	/**
	 * Method to set up the document properties
	 *
	 * @return void
	 */
	protected function setDocument() 
	{
		$isNew = ($this->form->getValue('id') < 1);
		$document = &JFactory::getDocument();
		$document->setTitle(JText::_('com_helloworld_Administration') . ' - ' . ($isNew ? JText::_('com_helloworld_HelloWorld_Creating') : JText::_('com_helloworld_HelloWorld_Editing')));
	}
}

This view also uses the second parameter of the JToolBarHelper::title function and set the browser title

Modifying the main entry file[edit]

In the admin/helloworld.php file, put these lines in order to use the 48x48 icon:

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
// Set some global property
$document = &JFactory::getDocument();
$document->addStyleDeclaration('.icon-48-helloworld {background-image: url(../media/com_helloworld/images/tux-48x48.png);}');
// import joomla controller library
jimport('joomla.application.component.controller');
// Get an instance of the controller prefixed by HelloWorld
$controller = JController::getInstance('HelloWorld');
// Perform the Request task
$controller->execute(JRequest::getCmd('task'));
// Redirect if set by the controller
$controller->redirect();

Adding some strings in the language file[edit]

Modify the admin/language/en-GB/en-GB.com_helloworld.ini and put these lines

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

# Joomla16.Tutorials
# Copyright (C) 2005 - 2009 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 - No BOM

COM_HELLOWORLD_ADMINISTRATION=HelloWorld administration
COM_HELLOWORLD_HELLOWORLD_CREATING=Creating
COM_HELLOWORLD_HELLOWORLD_DETAILS=Details
COM_HELLOWORLD_HELLOWORLD_EDIT_CANCELLED=Edit Cancelled
COM_HELLOWORLD_HELLOWORLD_EDITING=Editing
COM_HELLOWORLD_HELLOWORLD_ERROR_SAVING_GREETING=Error saving greeting: %s
COM_HELLOWORLD_HELLOWORLD_GREETING_DESC=Message to be displayed
COM_HELLOWORLD_HELLOWORLD_GREETING=Greeting
COM_HELLOWORLD_HELLOWORLD_GREETING_SAVED=Greeting saved
COM_HELLOWORLD_HELLOWORLDLIST_ARE_YOU_SURE_YOU_WANT_TO_DELETE_THESE_GREETINGS=Are you sure you want to delete these greetings?
COM_HELLOWORLD_HELLOWORLDLIST_GREETING=Greeting
COM_HELLOWORLD_HELLOWORLDLIST_GREETINGS_REMOVED=Greetings removed
COM_HELLOWORLD_HELLOWORLDLIST_ID=Id
COM_HELLOWORLD_HELLOWORLDLIST_ONE_OR_MORE_GREETINGS_COULD_NOT_BE_DELETED=One or more greetings could not be deleted: %s
COM_HELLOWORLD_HELLOWORLD_VIEW_DEFAULT_MSG_DESC=This message will be displayed
COM_HELLOWORLD_HELLOWORLD_VIEW_DEFAULT_MSG_LABEL=Message
COM_HELLOWORLD_MANAGER=HelloWorld manager

Packaging the component[edit]

Content of your code directory

Create a compressed file of this directory or directly download the archive and install it using the extension manager of Joomla!1.6. You can add a menu item of this component using the menu manager in the backend.

helloworld.xml

<?xml version="1.0" encoding="utf-8"?>
<extension type="component" version="1.6.0" method="upgrade">
	<name>Hello World!</name>
	<creationDate>November 2009</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>
	<version>0.0.10</version>
	<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 -->
		<sql>
			<file driver="mysql" charset="utf8">sql/update.mysql.utf8.sql</file>
		</sql>
	</update>

	<files folder="site">
		<filename>index.html</filename>
		<filename>helloworld.php</filename>
		<filename>controller.php</filename>
		<folder>views</folder>
		<folder>models</folder>
		<folder>language</folder>
	</files>

	<media destination="com_helloworld" folder="media">
		<filename>index.html</filename>
		<folder>images</folder>
	</media>
	
	<administration>
		<menu img="../media/com_helloworld/images/tux-16x16.png">Hello World!</menu>
		<files folder="admin">
			<filename>index.html</filename>
			<filename>helloworld.php</filename>
			<filename>controller.php</filename>
			<folder>sql</folder>
			<folder>tables</folder>
			<folder>models</folder>
			<folder>views</folder>
			<folder>controllers</folder>
		</files>		
		<languages folder="admin">
			<language tag="en-GB">language/en-GB/en-GB.com_helloworld.ini</language>
			<language tag="en-GB">language/en-GB/en-GB.com_helloworld.menu.ini</language>
		</languages>
	</administration>
</extension>

Contributors[edit]