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Difference between revisions of "Developing a MVC Component/Adding categories"

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< J2.5:Developing a MVC Component
(Modifying the form)
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{{underconstruction}}
+
{{version/tutor|2.5}}
{{future|1.6}}
+
{{Chunk:Developing a Model-View-Controller (MVC) Component for Joomla!2.5 - Contents}}
 
+
== Articles in this series ==
+
{{Chunk:Developing a Model-View-Controller (MVC) Component for Joomla!1.6 - Contents}}
+
  
 
== Introduction ==
 
== Introduction ==
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.
+
This tutorial is part of the [[Developing a Model-View-Controller (MVC) Component for Joomla!2.5]] tutorial. You are encouraged to read the previous parts of the tutorial before reading this.
  
The Joomla!1.6 framework has implemented the use of categories for all components. Adding categorized ability to a component is fairly simple.
+
The Joomla framework has implemented the use of categories for all components. Adding categorized ability to a component is fairly simple.
  
 
== Modifying the SQL ==
 
== Modifying the SQL ==
Line 33: Line 30:
 
</span>
 
</span>
  
<span id="admin/sql/updates/mysql/20100804.sql">
+
<span id="admin/sql/updates/mysql/0.0.12.sql">
''admin/sql/updates/mysql/20100804.sql''
+
''admin/sql/updates/mysql/0.0.12.sql''
 
<source lang="sql">
 
<source lang="sql">
 
ALTER TABLE `#__helloworld` ADD `catid` int(11) NOT NULL default '0'  
 
ALTER TABLE `#__helloworld` ADD `catid` int(11) NOT NULL default '0'  
Line 86: Line 83:
  
 
== Modifying the menu type ==
 
== Modifying the menu type ==
The HelloWorld menu type display a drop down list of all messages. If the message is categorized, we have to add the category in this display.
+
The HelloWorld menu type displays a drop down list of all messages. If the message is categorized, we have to add the category in this display.
  
 
In the ''admin/models/fields/helloworld.php'' file, put these lines:
 
In the ''admin/models/fields/helloworld.php'' file, put these lines:
Line 96: Line 93:
 
// No direct access to this file
 
// No direct access to this file
 
defined('_JEXEC') or die;
 
defined('_JEXEC') or die;
 +
 
// import the list field type
 
// import the list field type
jimport('joomla.html.html.list');
+
jimport('joomla.form.helper');
 +
JFormHelper::loadFieldClass('list');
 +
 
 
/**
 
/**
 
  * HelloWorld Form Field class for the HelloWorld component
 
  * HelloWorld Form Field class for the HelloWorld component
Line 109: Line 109:
 
*/
 
*/
 
protected $type = 'HelloWorld';
 
protected $type = 'HelloWorld';
 +
 
/**
 
/**
 
* Method to get a list of options for a list input.
 
* Method to get a list of options for a list input.
Line 114: Line 115:
 
* @return array An array of JHtml options.
 
* @return array An array of JHtml options.
 
*/
 
*/
protected function _getOptions()  
+
protected function getOptions()  
 
{
 
{
 
$db = JFactory::getDBO();
 
$db = JFactory::getDBO();
$query = new JDatabaseQuery;
+
 
 +
/// $query = new JDatabaseQuery; WARNING - There's an error in this line, JDatabaseQuery is an abstract class
 +
$query = $db->getQuery(true); // THIS IS THE FIX, WARNING IT MUST BE FIXED IN THE ZIP FILES
 +
 
 
$query->select('#__helloworld.id as id,greeting,#__categories.title as category,catid');
 
$query->select('#__helloworld.id as id,greeting,#__categories.title as category,catid');
 
$query->from('#__helloworld');
 
$query->from('#__helloworld');
Line 124: Line 128:
 
$messages = $db->loadObjectList();
 
$messages = $db->loadObjectList();
 
$options = array();
 
$options = array();
foreach($messages as $message)  
+
if ($messages)
 
{
 
{
$options[] = JHtml::_('select.option', $message->id, $message->greeting . ($message->catid ? ' (' . $message->category . ')' : ''));
+
foreach($messages as $message)
 +
{
 +
$options[] = JHtml::_('select.option', $message->id, $message->greeting .
 +
                      ($message->catid ? ' (' . $message->category . ')' : ''));
 +
}
 
}
 
}
$options = array_merge(parent::getOptions() , $options);
+
$options = array_merge(parent::getOptions(), $options);
 
return $options;
 
return $options;
 
}
 
}
Line 138: Line 146:
  
 
== Managing the submenu ==
 
== Managing the submenu ==
The ''com_categories'' component allow to set the submenu using an helper file. With your favorite file manager and editor, put a ''admin/helpers/helloworld.php'' file containing these lines:
+
The ''com_categories'' component allows to set the submenu using a helper file. With your favorite file manager and editor, put a ''admin/helpers/helloworld.php'' file containing these lines:
  
 
<span id="admin/helpers/helloworld.php">
 
<span id="admin/helpers/helloworld.php">
Line 146: Line 154:
 
// No direct access to this file
 
// No direct access to this file
 
defined('_JEXEC') or die;
 
defined('_JEXEC') or die;
 +
 
/**
 
/**
 
  * HelloWorld component helper.
 
  * HelloWorld component helper.
 
  */
 
  */
class HelloWorldHelper
+
abstract class HelloWorldHelper
 
{
 
{
 
/**
 
/**
 
* Configure the Linkbar.
 
* Configure the Linkbar.
 
*/
 
*/
public static function addSubmenu($submenu)
+
public static function addSubmenu($submenu)  
 
{
 
{
JSubMenuHelper::addEntry(
+
JSubMenuHelper::addEntry(JText::_('COM_HELLOWORLD_SUBMENU_MESSAGES'),
JText::_('com_helloworld_Messages'),
+
                        'index.php?option=com_helloworld', $submenu == 'messages');
'index.php?option=com_helloworld',
+
JSubMenuHelper::addEntry(JText::_('COM_HELLOWORLD_SUBMENU_CATEGORIES'),
$submenu=='messages');
+
                        'index.php?option=com_categories&view=categories&extension=com_helloworld',
JSubMenuHelper::addEntry(
+
                        $submenu == 'categories');
JText::_('com_helloworld_Categories'),
+
// set some global property
'index.php?option=com_categories&view=categories&extension=com_helloworld',
+
$document = JFactory::getDocument();
$submenu=='categories');
+
$document->addStyleDeclaration('.icon-48-helloworld ' .
$document = &JFactory::getDocument();
+
                              '{background-image: url(../media/com_helloworld/images/tux-48x48.png);}');
$document->addStyleDeclaration('.icon-48-helloworld {background-image: url(../media/com_helloworld/images/tux-48x48.png);}');
+
if ($submenu == 'categories')  
if ($submenu=='categories')
+
 
{
 
{
$document->setTitle(JText::_('com_helloworld_Administration').' - '.JText::_('com_helloworld_Categories'));
+
$document->setTitle(JText::_('COM_HELLOWORLD_ADMINISTRATION_CATEGORIES'));
JToolBarHelper::title(JText::_('com_helloworld_Manager') . ': <small><small>[ ' . JText::_('com_helloworld_Categories') . ' ]</small></small>', 'helloworld');
+
}
JToolBarHelper::preferences('com_helloworld');
+
}
+
 
}
 
}
 
}
 
}
 
</source>
 
</source>
 
</span>
 
</span>
 +
'''NOTE:''' You MUST use your component name (without com_) for the helper file name, or else your submenus won't show in category view.
  
 
This function will be automatically called by the ''com_categories'' component. Note that it will
 
This function will be automatically called by the ''com_categories'' component. Note that it will
Line 191: Line 198:
 
// No direct access to this file
 
// No direct access to this file
 
defined('_JEXEC') or die('Restricted access');
 
defined('_JEXEC') or die('Restricted access');
 +
 
// import Joomla controller library
 
// import Joomla controller library
 
jimport('joomla.application.component.controller');
 
jimport('joomla.application.component.controller');
 +
 
/**
 
/**
 
  * General Controller of HelloWorld component
 
  * General Controller of HelloWorld component
Line 203: Line 212:
 
* @return void
 
* @return void
 
*/
 
*/
function display($cachable = false)  
+
public function display($cachable = false, $urlparams = false)
 
{
 
{
 
// set default view if not set
 
// set default view if not set
JRequest::setVar('view', JRequest::getCmd('view', 'HelloWorldList'));
+
$input = JFactory::getApplication()->input;
 +
$input->set('view', $input->getCmd('view', 'HelloWorlds'));
 +
 
 
// call parent behavior
 
// call parent behavior
parent::display($cachable);
+
parent::display($cachable, $urlparams);
// Add submenu and icons
+
 
require_once JPATH_COMPONENT . DS . 'helpers' . DS . 'helloworld.php';
+
// Set the submenu
 
HelloWorldHelper::addSubmenu('messages');
 
HelloWorldHelper::addSubmenu('messages');
 
}
 
}
Line 223: Line 234:
 
// No direct access to this file
 
// No direct access to this file
 
defined('_JEXEC') or die('Restricted access');
 
defined('_JEXEC') or die('Restricted access');
 +
 +
// require helper file
 +
JLoader::register('HelloWorldHelper', dirname(__FILE__) . DS . 'helpers' . DS . 'helloworld.php');
 +
 
// import joomla controller library
 
// import joomla controller library
 
jimport('joomla.application.component.controller');
 
jimport('joomla.application.component.controller');
 +
 
// Get an instance of the controller prefixed by HelloWorld
 
// Get an instance of the controller prefixed by HelloWorld
 
$controller = JController::getInstance('HelloWorld');
 
$controller = JController::getInstance('HelloWorld');
 +
 
// Perform the Request task
 
// Perform the Request task
$controller->execute(JRequest::getCmd('task'));
+
$input = JFactory::getApplication()->input;
 +
$controller->execute($input->getCmd('task'));
 +
 
 
// Redirect if set by the controller
 
// Redirect if set by the controller
 
$controller->redirect();
 
$controller->redirect();
Line 240: Line 259:
 
''admin/language/en-GB/en-GB.com_helloworld.ini''
 
''admin/language/en-GB/en-GB.com_helloworld.ini''
 
<source lang="ini">
 
<source lang="ini">
# Joomla16.Tutorials
+
COM_HELLOWORLD="Hello World!"
# Copyright (C) 2005 - 2009 Open Source Matters. All rights reserved.
+
COM_HELLOWORLD_ADMINISTRATION="HelloWorld - Administration"
# License GNU General Public License version 2 or later; see LICENSE.txt, see LICENSE.php
+
COM_HELLOWORLD_ADMINISTRATION_CATEGORIES="HelloWorld - Categories"
# Note : All ini files need to be saved as UTF-8 - No BOM
+
COM_HELLOWORLD_HELLOWORLD_CREATING="HelloWorld - Creating"
 
+
COM_HELLOWORLD_HELLOWORLD_DETAILS="Details"
COM_HELLOWORLD_ADMINISTRATION=HelloWorld administration
+
COM_HELLOWORLD_HELLOWORLD_EDITING="HelloWorld - Editing"
COM_HELLOWORLD_CATEGORIES=Categories
+
COM_HELLOWORLD_HELLOWORLD_ERROR_UNACCEPTABLE="Some values are unacceptable"
COM_HELLOWORLD_MANAGER=HelloWorld manager
+
COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_DESC="The category the messages belongs to"
COM_HELLOWORLD_MESSAGES=Messages
+
COM_HELLOWORLD_HELLOWORLD_FIELD_CATID_LABEL="Category"
COM_HELLOWORLD_HELLOWORLD_CATEGORY=Category
+
COM_HELLOWORLD_HELLOWORLD_FIELD_GREETING_DESC="This message will be displayed"
COM_HELLOWORLD_HELLOWORLD_CATEGORY_DESC=Category of the message
+
COM_HELLOWORLD_HELLOWORLD_FIELD_GREETING_LABEL="Message"
COM_HELLOWORLD_HELLOWORLD_CREATING=Creating
+
COM_HELLOWORLD_HELLOWORLD_HEADING_GREETING="Greeting"
COM_HELLOWORLD_HELLOWORLD_DETAILS=Details
+
COM_HELLOWORLD_HELLOWORLD_HEADING_ID="Id"
COM_HELLOWORLD_HELLOWORLD_EDITING=Editing
+
COM_HELLOWORLD_MANAGER_HELLOWORLD_EDIT="HelloWorld manager: Edit Message"
COM_HELLOWORLD_HELLOWORLD_ERROR_SOME_VALUES_ARE_UNACCEPTABLE=Some values are unacceptable
+
COM_HELLOWORLD_MANAGER_HELLOWORLD_NEW="HelloWorld manager: New Message"
COM_HELLOWORLD_HELLOWORLD_GREETING_DESC=Message to be displayed
+
COM_HELLOWORLD_MANAGER_HELLOWORLDS="HelloWorld manager"
COM_HELLOWORLD_HELLOWORLD_GREETING=Greeting
+
COM_HELLOWORLD_N_ITEMS_DELETED_1="One message deleted"
COM_HELLOWORLD_HELLOWORLDLIST_ARE_YOU_SURE_YOU_WANT_TO_DELETE_THESE_GREETINGS=Are you sure you want to delete these greetings?
+
COM_HELLOWORLD_N_ITEMS_DELETED_MORE="%d messages deleted"
COM_HELLOWORLD_HELLOWORLDLIST_GREETING=Greeting
+
COM_HELLOWORLD_SUBMENU_MESSAGES="Messages"
COM_HELLOWORLD_HELLOWORLDLIST_GREETINGS_REMOVED=Greetings removed
+
COM_HELLOWORLD_SUBMENU_CATEGORIES="Categories"
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
+
 
</source>
 
</source>
 
</span>
 
</span>
Line 271: Line 286:
 
Content of your code directory
 
Content of your code directory
 
* ''[[#helloworld.xml|helloworld.xml]]''
 
* ''[[#helloworld.xml|helloworld.xml]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_02#site/helloworld.php|site/helloworld.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_02#site/helloworld.php|site/helloworld.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_02#site/controller.php|site/controller.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_02#site/controller.php|site/controller.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/views/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/views/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/views/helloworld/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/views/helloworld/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_04#site/views/helloworld/view.html.php|site/views/helloworld/view.html.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_04#site/views/helloworld/view.html.php|site/views/helloworld/view.html.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/views/helloworld/tmpl/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/views/helloworld/tmpl/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_06#site/views/helloworld/tmpl/default.xml|site/views/helloworld/tmpl/default.xml]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_06#site/views/helloworld/tmpl/default.xml|site/views/helloworld/tmpl/default.xml]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_02#site/views/helloworld/tmpl/default.php|site/views/helloworld/tmpl/default.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_02#site/views/helloworld/tmpl/default.php|site/views/helloworld/tmpl/default.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/models/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/models/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_06#site/models/helloworld.php|site/models/helloworld.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_06#site/models/helloworld.php|site/models/helloworld.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/language/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/language/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|site/language/en-GB/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|site/language/en-GB/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_08#site/language/en-GB/en-GB.com_helloworld.ini|site/language/en-GB/en-GB.com_helloworld.ini]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_08#site/language/en-GB/en-GB.com_helloworld.ini|site/language/en-GB/en-GB.com_helloworld.ini]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/index.html]]''
 
* ''[[#admin/helloworld.php|admin/helloworld.php]]''
 
* ''[[#admin/helloworld.php|admin/helloworld.php]]''
 
* ''[[#admin/controller.php|admin/controller.php]]''
 
* ''[[#admin/controller.php|admin/controller.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/sql/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/sql/index.html]]''
* ''[[#admin/sql/install.mysql.utf8.sql|admin/sql/install.mysql.utf8.sql]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_06#admin/sql/install.mysql.utf8.sql|admin/sql/install.mysql.utf8.sql]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_06#admin/sql/uninstall.mysql.utf8.sql|admin/sql/uninstall.mysql.utf8.sql]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_06#admin/sql/uninstall.mysql.utf8.sql|admin/sql/uninstall.mysql.utf8.sql]]''
* ''[[#admin/sql/update.mysql.utf8.sql|admin/sql/update.mysql.utf8.sql]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/sql/updates/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/models/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/sql/updates/mysql/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/models/fields/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#admin/sql/updates/mysql/0.0.1.sql|admin/sql/updates/mysql/0.0.1.sql]]''
 +
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_06#admin/sql/install.mysql.utf8.sql|admin/sql/updates/mysql/0.0.6.sql]]''
 +
* ''[[#admin/sql/updates/mysql/0.0.12.sql|admin/sql/updates/mysql/0.0.12.sql]]''
 +
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/models/index.html]]''
 +
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/models/fields/index.html]]''
 
* ''[[#admin/models/fields/helloworld.php|admin/models/fields/helloworld.php]]''
 
* ''[[#admin/models/fields/helloworld.php|admin/models/fields/helloworld.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/models/forms/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/models/forms/index.html]]''
 
* ''[[#admin/models/forms/helloworld.xml|admin/models/forms/helloworld.xml]]''
 
* ''[[#admin/models/forms/helloworld.xml|admin/models/forms/helloworld.xml]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/models/forms/helloworld.js|admin/models/forms/helloworld.js]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/models/forms/helloworld.js|admin/models/forms/helloworld.js]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/models/rules/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/models/rules/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/models/rules/greeting.php|admin/models/rules/greeting.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/models/rules/greeting.php|admin/models/rules/greeting.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/models/helloworld.php|admin/models/helloworld.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/models/helloworld.php|admin/models/helloworld.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_09#admin/models/helloworldlist.php|admin/models/helloworldlist.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_09#admin/models/helloworlds.php|admin/models/helloworlds.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/views/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/views/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/views/helloworldlist/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/views/helloworlds/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_10#admin/views/helloworldlist/view.html.php|admin/views/helloworldlist/view.html.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_10#admin/views/helloworlds/view.html.php|admin/views/helloworlds/view.html.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/views/helloworldlist/tmpl/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/views/helloworlds/tmpl/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/views/helloworldlist/tmpl/default.php|admin/views/helloworldlist/tmpl/default.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_09#admin/views/helloworlds/tmpl/default.php|admin/views/helloworlds/tmpl/default.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_07#admin/views/helloworldlist/tmpl/default_head.php|admin/views/helloworldlist/tmpl/default_head.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_07#admin/views/helloworlds/tmpl/default_head.php|admin/views/helloworlds/tmpl/default_head.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_07#admin/views/helloworldlist/tmpl/default_body.php|admin/views/helloworldlist/tmpl/default_body.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_07#admin/views/helloworlds/tmpl/default_body.php|admin/views/helloworlds/tmpl/default_body.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_07#admin/views/helloworldlist/tmpl/default_foot.php|admin/views/helloworldlist/tmpl/default_foot.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_07#admin/views/helloworlds/tmpl/default_foot.php|admin/views/helloworlds/tmpl/default_foot.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/views/helloworldlist/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/views/helloworlds/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/views/helloworld/view.html.php|admin/views/helloworld/view.html.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/views/helloworld/view.html.php|admin/views/helloworld/view.html.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/views/helloworld/submitbutton.js|admin/views/helloworld/submitbutton.js]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/views/helloworld/submitbutton.js|admin/views/helloworld/submitbutton.js]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/views/helloworld/tmpl/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/views/helloworld/tmpl/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/views/helloworld/tmpl/edit.php|admin/views/helloworld/tmpl/edit.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/views/helloworld/tmpl/edit.php|admin/views/helloworld/tmpl/edit.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/tables/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/helpers/index.html]]''
 +
* ''[[#admin/helpers/helloworld.php|admin/helpers/helloworld.php]]''
 +
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/tables/index.html]]''
 
* ''[[#admin/tables/helloworld.php|admin/tables/helloworld.php]]''
 
* ''[[#admin/tables/helloworld.php|admin/tables/helloworld.php]]''
 
* ''[[#admin/language/en-GB/en-GB.com_helloworld.ini|admin/language/en-GB/en-GB.com_helloworld.ini]]''
 
* ''[[#admin/language/en-GB/en-GB.com_helloworld.ini|admin/language/en-GB/en-GB.com_helloworld.ini]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_08#admin/language/en-GB/en-GB.com_helloworld.menu.ini|admin/language/en-GB/en-GB.com_helloworld.menu.ini]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_08#admin/language/en-GB/en-GB.com_helloworld.menu.ini|admin/language/en-GB/en-GB.com_helloworld.menu.ini]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|admin/controllers/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|admin/controllers/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/controllers/helloworld.php|admin/controllers/helloworld.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/controllers/helloworld.php|admin/controllers/helloworld.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_11#admin/controllers/helloworldlist.php|admin/controllers/helloworldlist.php]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_11#admin/controllers/helloworlds.php|admin/controllers/helloworldlist.php]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_08#language/en-GB/en-GB.ini|language/en-GB/en-GB.ini]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_08#language/en-GB/en-GB.ini|language/en-GB/en-GB.ini]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|media/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|media/index.html]]''
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!1.6_-_Part_01#index.html|media/images/index.html]]''
+
* ''[[Developing_a_Model-View-Controller_(MVC)_Component_for_Joomla!2.5_-_Part_01#index.html|media/images/index.html]]''
 
* ''media/images/tux-16x16.png''
 
* ''media/images/tux-16x16.png''
 
* ''media/images/tux-48x48.png''
 
* ''media/images/tux-48x48.png''
  
Create a compressed file of this directory or directly download the [http://joomlacode.org/gf/download/frsrelease/11394/46171/com_helloworld-1.6-part12.zip 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.
+
Create a compressed file of this directory or directly download the [http://joomlacode.org/gf/download/frsrelease/11394/58410/com_helloworld-1.6-part12.zip archive] and install it using the extension manager of Joomla. You can add a menu item of this component using the menu manager in the backend.
  
 
<span id="helloworld.xml">
 
<span id="helloworld.xml">
Line 334: Line 355:
 
<source lang="xml">
 
<source lang="xml">
 
<?xml version="1.0" encoding="utf-8"?>
 
<?xml version="1.0" encoding="utf-8"?>
<extension type="component" version="1.6.0" method="upgrade">
+
<extension type="component" version="2.5.0" method="upgrade">
<name>Hello World!</name>
+
 
 +
<name>COM_HELLOWORLD</name>
 +
<!-- The following elements are optional and free of formatting constraints -->
 
<creationDate>November 2009</creationDate>
 
<creationDate>November 2009</creationDate>
 
<author>John Doe</author>
 
<author>John Doe</author>
Line 342: Line 365:
 
<copyright>Copyright Info</copyright>
 
<copyright>Copyright Info</copyright>
 
<license>License Info</license>
 
<license>License Info</license>
 +
<!--  The version string is recorded in the components table -->
 
<version>0.0.12</version>
 
<version>0.0.12</version>
<description>com_helloworld_Description</description>
+
<!-- The description is optional and defaults to the name -->
 +
<description>COM_HELLOWORLD_DESCRIPTION</description>
  
 
<install> <!-- Runs on install -->
 
<install> <!-- Runs on install -->
Line 355: Line 380:
 
</sql>
 
</sql>
 
</uninstall>
 
</uninstall>
<update> <!-- Runs on update -->
+
<update> <!-- Runs on update; New in 2.5 -->
<sql>
+
<schemas>
<file driver="mysql" charset="utf8">sql/update.mysql.utf8.sql</file>
+
<schemapath type="mysql">sql/updates/mysql</schemapath>
</sql>
+
</schemas>
 
</update>
 
</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">
 
<files folder="site">
 
<filename>index.html</filename>
 
<filename>index.html</filename>
Line 374: Line 403:
 
<folder>images</folder>
 
<folder>images</folder>
 
</media>
 
</media>
+
 
 
<administration>
 
<administration>
<menu img="../media/com_helloworld/images/tux-16x16.png">Hello World!</menu>
+
<!-- Administration Menu Section -->
 +
<menu 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">
 
<files folder="admin">
 +
<!-- Admin Main File Copy Section -->
 
<filename>index.html</filename>
 
<filename>index.html</filename>
 
<filename>helloworld.php</filename>
 
<filename>helloworld.php</filename>
 
<filename>controller.php</filename>
 
<filename>controller.php</filename>
 +
<!-- SQL files section -->
 
<folder>sql</folder>
 
<folder>sql</folder>
 +
<!-- tables files section -->
 
<folder>tables</folder>
 
<folder>tables</folder>
 +
<!-- models files section -->
 
<folder>models</folder>
 
<folder>models</folder>
 +
<!-- views files section -->
 
<folder>views</folder>
 
<folder>views</folder>
 +
<!-- controllers files section -->
 
<folder>controllers</folder>
 
<folder>controllers</folder>
 +
<!-- helpers files section -->
 
<folder>helpers</folder>
 
<folder>helpers</folder>
</files>
+
</files>
 +
 
 
<languages folder="admin">
 
<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.ini</language>
<language tag="en-GB">language/en-GB/en-GB.com_helloworld.menu.ini</language>
+
<language tag="en-GB">language/en-GB/en-GB.com_helloworld.sys.ini</language>
 
</languages>
 
</languages>
 
</administration>
 
</administration>
 +
 
</extension>
 
</extension>
 
</source>
 
</source>
 
</span>
 
</span>
 +
 +
== Zips ==
 +
Download the zip file for this Part:
 +
[https://github.com/downloads/rvsjoen/joomla-tutorials/com_helloworld-part12.zip]
 +
 +
== Navigate ==
 +
[[Developing a Model-View-Controller (MVC) Component for Joomla!2.5 - Part 11|Prev: Adding verifications]]
 +
[[Developing a Model-View-Controller (MVC) Component for Joomla!2.5 - Part 13|Next: Adding configuration]]
  
 
== Contributors ==
 
== Contributors ==
 
*[[User:cdemko|Christophe Demko]]
 
*[[User:cdemko|Christophe Demko]]
 +
*[[User:oaksu|Ozgur Aksu]]
 +
*[[User:Anibal.sanchez|Anibal Sanchez]] // Just a fix
  
 
[[Category:Development]]
 
[[Category:Development]]
[[category:Joomla! 1.6]]
+
[[Category:Joomla! 1.6]]
[[category:Manual]]
+
[[Category:Joomla! 1.7]]
 +
[[Category:Joomla! 2.5]]

Revision as of 14:46, 3 May 2013


Introduction

This tutorial is part of the Developing a Model-View-Controller (MVC) Component for Joomla!2.5 tutorial. You are encouraged to read the previous parts of the tutorial before reading this.

The Joomla framework has implemented the use of categories for all components. Adding categorized ability to a component is fairly simple.

Modifying the SQL

In order to manage categories, we have to change the SQL tables.

With your favorite editor, modify admin/sql/install.mysql.utf8.sql and put these lines:

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,
  `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'

Modifying the form

A HelloWorld message can now belong to a category. We have to modify the editing form. In the admin/models/forms/helloworld.xml file, put these lines:

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_FIELD_GREETING_LABEL"
                        description="COM_HELLOWORLD_HELLOWORLD_FIELD_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>

Note that the category can be 0 (representing no category).

Modifying the menu type

The HelloWorld menu type displays a drop down list of all messages. If the message is categorized, we have to add the category in this display.

In the admin/models/fields/helloworld.php file, put these lines:

admin/models/fields/helloworld.php

<?php
// No direct access to this file
defined('_JEXEC') or die;
 
// import the list field type
jimport('joomla.form.helper');
JFormHelper::loadFieldClass('list');
 
/**
 * HelloWorld Form Field class for the HelloWorld component
 */
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 = new JDatabaseQuery; WARNING - There's an error in this line, JDatabaseQuery is an abstract class
                $query = $db->getQuery(true); // THIS IS THE FIX, WARNING IT MUST BE FIXED IN THE ZIP FILES
 
                $query->select('#__helloworld.id as id,greeting,#__categories.title as category,catid');
                $query->from('#__helloworld');
                $query->leftJoin('#__categories on catid=#__categories.id');
                $db->setQuery((string)$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;
        }
}

It will now display the category between parenthesis.

Managing the submenu

The com_categories component allows to set the submenu using a helper file. With your favorite file manager and editor, put a admin/helpers/helloworld.php file containing these lines:

admin/helpers/helloworld.php

<?php
// No direct access to this file
defined('_JEXEC') or die;
 
/**
 * HelloWorld component helper.
 */
abstract class HelloWorldHelper
{
        /**
         * Configure the Linkbar.
         */
        public static function addSubmenu($submenu) 
        {
                JSubMenuHelper::addEntry(JText::_('COM_HELLOWORLD_SUBMENU_MESSAGES'),
                                         'index.php?option=com_helloworld', $submenu == 'messages');
                JSubMenuHelper::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'));
                }
        }
}

NOTE: You MUST use your component name (without com_) for the helper file name, or else your submenus won't show in category view.

This function will be automatically called by the com_categories component. Note that it will

  • change the submenu
  • change some css properties (for displaying icons)
  • change the browser title if the submenu is categories
  • change the title and add a preferences button

We have to change the general controller to call this function and modify the component entry point (the .icon-48-helloworld css class is now set in the addSubmenu function)

admin/controller.php

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
 
// import Joomla controller library
jimport('joomla.application.component.controller');
 
/**
 * General Controller of HelloWorld component
 */
class HelloWorldController extends JController
{
        /**
         * display task
         *
         * @return void
         */
        public function display($cachable = false, $urlparams = false)
        {
                // set default view if not set
                $input = JFactory::getApplication()->input;
                $input->set('view', $input->getCmd('view', 'HelloWorlds'));
 
                // call parent behavior
                parent::display($cachable, $urlparams);
 
                // Set the submenu
                HelloWorldHelper::addSubmenu('messages');
        }
}

admin/helloworld.php

<?php
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
 
// require helper file
JLoader::register('HelloWorldHelper', dirname(__FILE__) . DS . 'helpers' . DS . 'helloworld.php');
 
// 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
$input = JFactory::getApplication()->input;
$controller->execute($input->getCmd('task'));
 
// Redirect if set by the controller
$controller->redirect();

Adding some translation strings

Some strings have to be translated. In the admin/language/en-GB/en-GB.com_helloworld.ini file, put these lines:

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

COM_HELLOWORLD="Hello World!"
COM_HELLOWORLD_ADMINISTRATION="HelloWorld - Administration"
COM_HELLOWORLD_ADMINISTRATION_CATEGORIES="HelloWorld - Categories"
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_N_ITEMS_DELETED_1="One message deleted"
COM_HELLOWORLD_N_ITEMS_DELETED_MORE="%d messages deleted"
COM_HELLOWORLD_SUBMENU_MESSAGES="Messages"
COM_HELLOWORLD_SUBMENU_CATEGORIES="Categories"

Packaging the component

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. 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="2.5.0" method="upgrade">
 
        <name>COM_HELLOWORLD</name>
        <!-- The following elements are optional and free of formatting constraints -->
        <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>
        <!--  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 in 2.5 -->
                <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>
                <folder>language</folder>
        </files>
 
        <media destination="com_helloworld" folder="media">
                <filename>index.html</filename>
                <folder>images</folder>
        </media>
 
        <administration>
                <!-- Administration Menu Section -->
                <menu 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>
                        <!-- 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 tag="en-GB">language/en-GB/en-GB.com_helloworld.ini</language>
                        <language tag="en-GB">language/en-GB/en-GB.com_helloworld.sys.ini</language>
                </languages>
        </administration>
 
</extension>

Zips

Download the zip file for this Part: [1]

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