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ucfirst($entity);
Chapter 4
[ 85 ]
// check if we already instantiated this controller
if (!isset($instances[$class]))
{
// check if we need to find the controller class
if (!class_exists( $class ))
{
jimport('joomla.filesystem.file');
$path = JPATH_COMPONENT.DS.'controllers',
strtolower($entity).'.php';
// search for the file in the controllers path
if (JFile::exists($path)
{
// include the class file
require_once $path;
if (!class_exists( $class ))
{
// class file does not include the class
return JError::raiseWarning('SOME_ERROR',
JText::_('Invalid controller'));
}
}
else
{
// class file not found
return JError::raiseWarning('SOME_ERROR',
JText::_('Unknown controller'));
}
}
// create controller instance
$instances[$class] = new $class();
}
// return a reference to the controller
return $instances[$class];
}
We can now alter the component root file to use the getInstance() method:
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die('Restricted Access');
// get the base controller
require_once(JPATH_COMPONENT.


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