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<?php // UTF-8 marker äöüÄÖÜ߀
/**
* Class PageTemplate for the exercises of the EWA lecture
* Demonstrates use of PHP including class and OO.
* Implements Zend coding standards.
* Generate documentation with Doxygen or phpdoc
*
* PHP Version 5
*
* @category File
* @package Pizzaservice
* @author Bernhard Kreling, <b.kreling@fbi.h-da.de>
* @author Ralf Hahn, <ralf.hahn@h-da.de>
* @license http://www.h-da.de none
* @Release 1.2
* @link http://www.fbi.h-da.de
*/
require_once './Page.php';
/**
* This is a template for top level classes, which represent
* a complete web page and which are called directly by the user.
* Usually there will only be a single instance of such a class.
* The name of the template is supposed
* to be replaced by the name of the specific HTML page e.g. baker.
* The order of methods might correspond to the order of thinking
* during implementation.
* @author Bernhard Kreling, <b.kreling@fbi.h-da.de>
* @author Ralf Hahn, <ralf.hahn@h-da.de>
*/
class Baking extends Page
{
// to do: declare reference variables for members
// representing substructures/blocks
/**
* Instantiates members (to be defined above).
* Calls the constructor of the parent i.e. page class.
* So the database connection is established.
*
* @return none
*/
protected function __construct()
{
parent::__construct();
// to do: instantiate members representing substructures/blocks
}
/**
* Cleans up what ever is needed.
* Calls the destructor of the parent i.e. page class.
* So the database connection is closed.
*
* @return none
*/
protected function __destruct()
{
parent::__destruct();
}
/**
* Fetch all data that is necessary for later output.
* Data is stored in an easily accessible way e.g. as associative array.
*
* @return none
*/
protected function getViewData()
{
// to do: fetch data for this view from the database
}
/**
* First the necessary data is fetched and then the HTML is
* assembled for output. i.e. the header is generated, the content
* of the page ("view") is inserted and -if avaialable- the content of
* all views contained is generated.
* Finally the footer is added.
*
* @return none
*/
protected function generateView()
{
$this->getViewData();
$this->generatePageHeader('to do: change headline');
// to do: call generateView() for all members
// to do: output view of this page
$this->generatePageFooter();
}
/**
* Processes the data that comes via GET or POST i.e. CGI.
* If this page is supposed to do something with submitted
* data do it here.
* If the page contains blocks, delegate processing of the
* respective subsets of data to them.
*
* @return none
*/
protected function processReceivedData()
{
parent::processReceivedData();
// to do: call processReceivedData() for all members
}
/**
* This main-function has the only purpose to create an instance
* of the class and to get all the things going.
* I.e. the operations of the class are called to produce
* the output of the HTML-file.
* The name "main" is no keyword for php. It is just used to
* indicate that function as the central starting point.
* To make it simpler this is a static function. That is you can simply
* call it without first creating an instance of the class.
*
* @return none
*/
public static function main()
{
try {
$page = new Baking();
$page->processReceivedData();
$page->generateView();
}
catch (Exception $e) {
header("Content-type: text/plain; charset=UTF-8");
echo $e->getMessage();
}
}
}
// This call is starting the creation of the page.
// That is input is processed and output is created.
Baking::main();
// Zend standard does not like closing php-tag!
// PHP doesn't require the closing tag (it is assumed when the file ends).
// Not specifying the closing ? > helps to prevent accidents
// like additional whitespace which will cause session
// initialization to fail ("headers already sent").
//? >