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<?php
/*
* Framework base class.
*
* @todo test nested controllers
*/
class creovel
{
const VERSION = '0.01';
const RELEASE_DATE = 'Nov 24 2005 16:55:55';
/**
* Run framework.
*
* @author Nesbert Hidalgo
* @access public
* @param array $events optional assoc. array of CONTORLLER, ACTION & ID
* @param array $events optional assoc. array of params
* @param bool $return_as_str optional returns controller as string
* @return object
*/
public function run($events = null, $params = null, $return_as_str = false)
{
// set-up environment
require_once( CONFIG_PATH . 'environments' . DS . ( $_ENV['mode'] = ( isset($_ENV['mode']) ? $_ENV['mode'] : 'development' ) ) . '.php' );
// set event and params
$events = $events ? $events : self::get_events();
$params = $params ? $params : self::get_params();
// set controller & action
$events['controller'] = $events['controller'] ? $events['controller'] : $_ENV['routes']['default']['controller'];
$events['action'] = $events['action'] ? $events['action'] : $_ENV['routes']['default']['action'];
// include controllers and helpers
self::include_controller($events['nested_controller_path'] . $events['controller']);
// create controller object and build the framework
$controller = $events['controller'] . '_controller';
$controller = new $controller();
// set controller properties
$controller->_set_events($events);
$controller->_set_params($params);
// execute action
$controller->_execute_action();
// output to user
return $controller->_output($return_as_str);
}
/**
* Returns the framework events (CONTORLLER, ACTION & ID).
*
* @author Nesbert Hidalgo
* @access public
* @param string $event_to_return optional name of event to return
* @return array
*/
public function get_events($event_to_return = null)
{
// read URI which was given in order to access this page, remove any trailing forward slashes
$uri = explode('?', ( $_SERVER['REQUEST_URI']{strlen($_SERVER['REQUEST_URI']) - 1} == '/' ? substr($_SERVER['REQUEST_URI'], 0, strlen($_SERVER['REQUEST_URI']) - 1) : $_SERVER['REQUEST_URI'] ));
// get event args from uri
$args = explode(DS, substr($uri[0], 1));
// set events for framework with array indexes
if ( count($args) > 2 ) {
$events['controller'] = $args[ count($args) - 3 ];
$events['action'] = $args[ count($args) - 2 ];
$events['id'] = $args[ count($args) - 1 ];
} else {
$events['controller'] = $args[0];
$events['action'] = $args[1];
}
// check for nested controller
if ( count($args) > 3 ) {
$events['nested_controller_path'] = implode(DS, array_slice($args, 0, count($args) - 3) ) . DS;
}
return ( $event_to_return ? $events[$event_to_return] : $events );
}
/**
* Returns the framework params.
*
* @author Nesbert Hidalgo
* @access public
* @param string $param_to_return optional name of param to return
* @return array
*/
public function get_params($param_to_return = null)
{
// get id from events
$id = self::get_events('id');
// intialize params
$params = $id ? array('id'=>$id) : array();
$requests = array($_GET, $_POST);
// add each request add keys & values to $params
foreach ( $requests as $request ) {
if ( count($request) === 0 ) continue;
foreach ( $request as $field => $value ) $params[$field] = $value;
}
// $GLOBALS['HTTP_RAW_POST_DATA'] used for observer ajax calls
// Note: HTTP_RAW_POST_DATA must set to on in php.ini
if ( $GLOBALS['HTTP_RAW_POST_DATA'] ) {
$params['raw_post'] = str_replace('&_=', '', $GLOBALS['HTTP_RAW_POST_DATA']);
}
// unset blank vaiable set by $GLOBALS['HTTP_RAW_POST_DATA']
unset($params['_']);
return ( $param_to_return ? $params[$param_to_return] : $params );
}
/**
* Includes the required files for a controller and the controller helpers.
*
* @author Nesbert Hidalgo
* @access private
* @param string $controller_path required
*/
private function include_controller($controller_path)
{
// include application controller
$controllers = array_merge(array('application'), explode(DS, $controller_path));
$path = '';
foreach ( $controllers as $controller ) {
$class = $controller . '_controller';
$controller_path = CONTROLLERS_PATH . $path . $class . '.php';
$helper_path = HELPERS_PATH . $path . $controller . '_helper.php';
try {
if ( $class == '_controller' ) {
$_ENV['error']->add("Looking for an 'Unknown Controller' in <strong>".str_replace('_controller'.'.php', '', $controller_path)."</strong>");
}
if ( file_exists($controller_path) ) {
require_once($controller_path);
} else {
$controller_path = str_replace($class . '.php', '', $controller_path);
throw new Exception("Controller '{$class}' not found in <strong>".str_replace('_controller'.'.php', '', $controller_path)."</strong>");
}
} catch ( Exception $e ) {
// add to errors
$_ENV['error']->add($e->getMessage(), $e);
}
// include helper
if ( file_exists($helper_path) ) require_once($helper_path);
// append to path if a nested controller
$path .= str_replace('application'.DS, '', $controller.DS);
}
}
}
?>
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