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<?php
/**
* Class to handle all intreaction between models, views, and controllers
*
* @todo filiters
*/
class controller
{
/**
* Controller name
*
* @author Nesbert Hidalgo
* @access protected
* @var string
*/
protected $_controller;
/**
* Action name
*
* @author Nesbert Hidalgo
* @access protected
* @var string
*/
protected $_action;
/**
* Page to be outputted
*
* @author Nesbert Hidalgo
* @access public
* @var string
*/
public $render;
/**
* Layout name
*
* @author Nesbert Hidalgo
* @access public
* @var string
*/
public $layout;
/**
* Array of all server-side requests
*
* @author Nesbert Hidalgo
* @access public
* @var array
*/
public $params;
/**
* Set the controller's events and layout
*
* @author Nesbert Hidalgo
* @access public
*/
public function _set_events($events)
{
$this->_controller = $events['controller'];
$this->_action = $events['action'];
if (!$this->render) $this->render = $events['action'];
if (!$this->layout) $this->layout = $_ENV['routes']['default']['layout'];
$this->_nested_controller_path = $events['nested_controller_path'];
}
/**
* Set the controller's params
*
* @author Nesbert Hidalgo
* @access public
*/
public function _set_params($params)
{
$this->params = $params;
}
/**
* Executes the controller's action.
*
* @author John Faircloth, Nesbert Hidalgo
* @access public
*/
public function _execute_action()
{
try {
if ( method_exists($this, $this->_action) ) {
// call before filter
$this->before_filter();
// controller execute action
$action = $this->_action;
$this->$action();
// call before filter
$this->after_filter();
} else {
throw new Exception("Action '{$this->_action}' not found in <strong>{$this->_controller}_controller</strong>");
}
} catch ( Exception $e ) {
// add to errors
$_ENV['error']->add($e->getMessage(), $e);
}
}
/**
* Output contents to user
*
* @author Nesbert Hidalgo
* @access public
* @param bool $return_as_str
* @return mixed
*/
public function _output($return_as_str)
{
// set options for view
$options['controller'] = $this->_controller;
$options['action'] = $this->_action;
$options['layout'] = $this->layout;
$options['render'] = $this->render;
$options['text'] = $this->render_text;
return $this->render($options);
}
/**
* Get the path of the view file
*
* @author Nesbert Hidalgo
* @access private
* @param string $view
* @param string $controller
* @return string
*/
private function _get_view_path($view = null, $controller = null)
{
// nested controllers check [NH] might need to find a better way to do this
if ( $this->_nested_controller_path ) {
$view_path = VIEWS_PATH.$this->_nested_controller_path.( $controller ? $controller : $this->_controller ).DS.$view.'.php';
if ( file_exists($view_path) ) {
return $view_path;
} else {
return VIEWS_PATH.( $controller ? $controller : $this->_controller ).DS.$view.'.php';
}
} else {
return VIEWS_PATH.( $controller ? $controller : $this->_controller ).DS.$view.'.php';
}
}
/**
* Get the path of the layout file
*
* @author Nesbert Hidalgo
* @access private
* @param string $layout
* @return string
*/
private function _get_layout_path($layout = null)
{
return VIEWS_PATH.'layouts'.DS.( $layout ? $layout : $this->layout ).'.php';
}
/**
* Render views with options
*
* @author Nesbert Hidalgo
* @access public
* @param array $options
*/
public function render($options)
{
// check options
if ( !is_array($options) ) return false;
// set and unset reserved $options
if ( $options['partial'] ) {
$view = '_'.$options['partial'];
unset($options['partial']);
}
if ( isset($options['action']) ) {
$view = $options['action'];
unset($options['action']);
}
if ( isset($options['render']) ) {
$view = $options['render'];
unset($options['render']);
}
if ( $options['controller'] ) {
$controller = $options['controller'];
unset($options['controller']);
}
if ( isset($options['layout']) ) {
$layout = $options['layout'];
unset($options['layout']);
}
if ( $options['to_str'] ) {
$return_as_str = true;
unset($options['to_str']);
}
// set view path
$view_path = $this->_get_view_path($view, $controller);
switch ( true ) {
// if view equaqls false render nothing
case ( $view === false ):
return;
break;
// if layout get page content with layout
case ( $layout ):
if ( $return_as_str ) {
return view::_get_view($view_path, $this->_get_layout_path($layout), $options);
} else {
return view::_show_view($view_path, $this->_get_layout_path($layout), $options);
}
break;
// if same layout include files and set variables
case ( file_exists($view_path) ):
// create a variable foreach other option, using its key as the variable name
if ( count($options) ) foreach ( $options as $key => $values ) $$key = $values;
// include partial
include ( $view_path );
return;
break;
default:
//print_obj($options, 1);
$_ENV['error']->add("Unable to render 'view'. File not found <strong>{$view_path}</strong>.");
break;
}
}
/**
* Render views with options to a string
*
* @author Nesbert Hidalgo
* @access public
* @param array $options
*/
public function render_to_str($options)
{
$options['to_str'] = true;
return $this->render($options);
}
/**
* Include a view into the current page
*
* @author Nesbert Hidalgo
* @access public
* @param mixed $options action to render or an array of render $options
* @param array $locals optional
* @param string $controller optional controller name
*/
public function build_partial($partial, $locals = null, $controller = null)
{
if ( is_array($partial) ) {
$options = $partial;
} else {
$options['render'] = $partial;
}
if ( $locals ) $options['locals'] = $locals;
if ( $controller ) $options['controller'] = $controller;
$this->render($options);
}
/**
* Alias to build_partial and adds an underscore to the view
*
* @author Nesbert Hidalgo
* @access public
* @param mixed $options partial to render or an array of render $options
* @param array $locals optional
* @param string $controller optional controller name
*/
public function render_partial($partial, $locals = null, $controller = null)
{
if ( is_array($partial) ) {
$options = $partial;
} else {
$options['partial'] = $partial;
}
if ( $locals ) $options['locals'] = $locals;
if ( $controller ) $options['controller'] = $controller;
$this->render($options);
}
/**
* Allows the ability build a controller within a controller
*
* @author John Faircloth, Nesber Hidalgo
* @access public
* @param string $controller
* @param string $action optional
* @param string $id optional
* @param string $extras optional
* @param bool $to_str optional return controller as string
* @return object controller object
*/
public function build_controller($controller, $action = '', $id = '', $extras = array(), $to_str = false)
{
$events = array('controller'=>$controller, 'action'=>$action);
$params = array();
if ( $id ) $params['id'] = $id;
return creovel::run($events, array_merge($params, $extras), $to_str);
}
/**
* Alias to build_controller return controller as a string
*
* @author Nesber Hidalgo
* @access public
* @param string $controller
* @param string $action optional
* @param string $id optional
* @param string $extras optional
* @return string controller object
*/
public function build_controller_to_str($controller, $action = '', $id = '', $extras = array())
{
return $this->build_controller($controller, $action, $id, $extras, true);
}
/**
* Magic functions
*
* @author Nesbert Hidalgo
* @access public
*/
public function __call($method, $arguments)
{
try {
throw new Exception("Call to undefined method '{$method}' not found in <strong>".get_class($this)."</strong>.");
} catch ( Exception $e ) {
// add to errors
$_ENV['error']->add($e->getMessage(), $e);
}
}
/**
* Callback functions
*
* @author Nesbert Hidalgo
* @access public
*/
public function before_filter() {}
public function after_filter() {}
}
?>
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