/**
* Processes a view script and returns the output.
*
* @param string|ModelInterface $nameOrModel The script/resource process, or a view model
* @param null|array|\ArrayAccess $values Values to use during rendering
* @return string The script output.
*/
public function render($nameOrModel, $values = null)
{
$string = "BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//hacksw/handcal//NONSGML v1.0//EN\n";
foreach ($nameOrModel->getVariable('events') as $event) {
$string .= "BEGIN:VEVENT\n";
$string .= "UID:{$event->id}@stjornvisi.is\n";
$string .= "DTSTART:{$event->event_time->format('Ymd\\THis')}\n";
$string .= "DTEND:{$event->event_end->format('Ymd\\THis')}\n";
if ($event->lat && $event->lng) {
$string .= "GEO:{$event->lat};{$event->lng}\n";
}
$string .= "LOCATION:{$event->location}\n";
$string .= "ORGANIZER;CN=\"" . ($event->groups ? implode(', ', array_map(function ($g) {
return $g->name;
}, $event->groups)) : 'Stjónvísisviðburður') . "\":no-reply@stjornvisi.is\n";
$string .= "LOCATION:{$event->location}\n";
$string .= "URL:http://{$_SERVER['SERVER_NAME']}/vidburdir/{$event->id}\n";
$string .= "SUMMARY:{$event->subject}\n";
$string .= "END:VEVENT\n";
}
$string .= "END:VCALENDAR";
return $string;
}
/**
*
* @param ViewModel $block
* @return string
*/
protected function determineAnonymousBlockId(ModelInterface $block)
{
$blockId = $block->getVariable(self::BLOCK_ID_VAR);
if (!$blockId) {
$blockId = sprintf(self::ANONYMOUS_ID_PATTERN, $block->captureTo(), self::$anonymousSuffix++);
$block->setVariable(self::BLOCK_ID_VAR, $blockId);
}
return $blockId;
}
/**
* Prepare the layout, if any.
*
* Injects the view model in the layout view model, if present.
*
* If the view model contains a non-empty 'layout' variable, that value
* will be used to seed a layout view model, if:
*
* - it is a string layout template name
* - it is a ModelInterface instance
*
* If a layout is discovered in this way, it will override the one set in
* the constructor, if any.
*
* Returns the provided $viewModel unchanged if no layout is discovered;
* otherwise, a view model representing the layout, with the provided
* view model as a child, is returned.
*
* @param ModelInterface $viewModel
* @return ModelInterface
*/
private function prepareLayout(ModelInterface $viewModel)
{
$layout = $this->layout ? clone $this->layout : null;
$providedLayout = $viewModel->getVariable('layout', false);
if (is_string($providedLayout) && !empty($providedLayout)) {
$layout = new ViewModel();
$layout->setTemplate($providedLayout);
$viewModel->setVariable('layout', null);
} elseif ($providedLayout instanceof ModelInterface) {
$layout = $providedLayout;
$viewModel->setVariable('layout', null);
}
if ($layout) {
$layout->addChild($viewModel);
$viewModel = $layout;
}
return $viewModel;
}
