/**
* Check if any filter stored in Session must be cleared.
*
* It return true when:
*
* - $this->auto_clear_filter is set to true
* - HTTP referer doesn't belong to any CRUD action of the same Model and same prefix
*
* ex: current page = admin_index
* referer = admin_edit
* -> don't clean the filters)
*/
private function must_clear_filter()
{
if ($this->auto_clear_filter == false) {
return false;
} else {
if (isset($_SERVER['HTTP_REFERER'])) {
$plugin = $this->controller->params['plugin'];
$controller = $this->controller->params['controller'];
$prefix = !empty($this->controller->params['prefix']) ? $this->controller->params['prefix'] . '_' : null;
$index_action = Router::url(array('plugin' => $plugin, 'controller' => $controller, 'action' => $prefix . 'index'), true);
$explicit_index_action = $index_action . '/index';
$view_action = Router::url(array('plugin' => $plugin, 'controller' => $controller, 'action' => $prefix . 'view'), true);
$add_action = Router::url(array('plugin' => $plugin, 'controller' => $controller, 'action' => $prefix . 'add'), true);
$edit_action = Router::url(array('plugin' => $plugin, 'controller' => $controller, 'action' => $prefix . 'edit'), true);
$delete_action = Router::url(array('plugin' => $plugin, 'controller' => $controller, 'action' => $prefix . 'delete'), true);
if (in_array($_SERVER['HTTP_REFERER'], array($index_action, $explicit_index_action, $view_action, $add_action, $edit_action, $delete_action)) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($index_action, '/')) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($explicit_index_action, '/')) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($view_action, '/')) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($add_action, '/')) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($edit_action, '/')) || StringTool::start_with($_SERVER['HTTP_REFERER'], StringTool::ensure_end_with($delete_action, '/'))) {
return false;
}
}
return true;
}
}