/**
* Render a view. Will use context to call controller method, than load corresponding view. Only one
* or the other is required.
* @param mixed $view_name May be string or context array
* @param array $args Arbitrary data to pass to controller, view
* @param int $cache_expires Cache life in seconds
* @return void
*/
public static function render($view_name = null, $args = array(), $cache_expires = null)
{
$context = self::push_context($view_name, $parent);
\jmvc::trace('render ' . $context['controller'] . '.' . $context['view']);
if (method_exists('jmvc\\Controller', $context['view'])) {
\jmvc::do404();
}
if (!empty($parent)) {
$args['parent'] = $parent;
}
$controller = false;
if ($cache_expires !== null) {
$key = 'view' . self::cache_key($context, $args);
if (self::cache()->get($key . 'meta', $meta)) {
foreach ($meta['push'] as $push) {
self::push($push[0], $push[1], $push[2]);
}
foreach ($meta['set'] as $set) {
self::set($set[0], $set[1]);
}
foreach ($meta['reset'] as $reset) {
self::reset($reset[0], $reset[1]);
}
}
if (self::cache()->get($key, $output)) {
return $output;
}
self::$cacheme[$key] = array('set' => array(), 'push' => array(), 'reset' => array());
}
ob_start();
$controller = Controller::factory($context, $args);
if ($controller && method_exists($controller, $context['view'])) {
$controller->{$context}['view']();
if ($override = $controller->view_override()) {
$context = self::push_context($override);
}
} else {
$controller = false;
}
if ($view_file = self::exists($context)) {
if ($controller) {
extract(get_object_vars($controller));
}
include $view_file;
}
$output = ob_get_clean();
// must find either a controller method or view file
if (!$controller && !$view_file) {
throw new \ErrorException('Can\'t find view. View: ' . $context['view'] . ', Controller: ' . $context['controller'] . ',
Template: ' . $context['template'] . ', Site: ' . $context['site']);
}
if (isset($override) && $override) {
self::pop_context($override);
}
self::pop_context($view_name);
if ($cache_expires !== null) {
if ($cache_expires == 'controller') {
$cache_expires = $controller->cache_expires;
}
self::cache()->set($key, $output, $cache_expires);
self::cache()->set($key . 'meta', self::$cacheme[$key], $cache_expires);
unset(self::$cacheme[$key]);
}
return $output;
}
