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เกิดจาก

ดูที่ HellosControllerHelloต้องมี Hello ต่อท้ายด้วย

ไฟล์ controller.php

class HellosController extends JController
{

}

controllers/Hello.php

class HellosControllerHello extends HellosController
{
/**
* constructor (registers additional tasks to methods)
* @return void
*/
function __construct()
{
parent::__construct();

// Register Extra tasks
$this->registerTask( 'add' , 'edit' );
}

/**
* display the edit form
* @return void
*/
function edit()
{
JRequest::setVar( 'view', 'hello' );
JRequest::setVar( 'layout', 'form' );
JRequest::setVar('hidemainmenu', 1);

parent::display();
}

/**
* save a record (and redirect to main page)
* @return void
*/
function save()
{
$model = $this->getModel('hello');

if ($model->store($post)) {
$msg = JText::_( 'Greeting Saved!' );
} else {
$msg = JText::_( 'Error Saving Greeting' );
}

// Check the table in so it can be edited.... we are done with it anyway
$link = 'index.php?option=com_hello';
$this->setRedirect($link, $msg);
}

/**
* remove record(s)
* @return void
*/
function remove()
{
$model = $this->getModel('hello');
if(!$model->delete()) {
$msg = JText::_( 'Error: One or More Greetings Could not be Deleted' );
} else {
$msg = JText::_( 'Greeting(s) Deleted' );
}

$this->setRedirect( 'index.php?option=com_hello', $msg );
}

/**
* cancel editing a record
* @return void
*/
function cancel()
{
$msg = JText::_( 'Operation Cancelled' );
$this->setRedirect( 'index.php?option=com_hello', $msg );
}
}