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<?php
/**
* Specialized version of SimpleORMapCollection that accepts only
* OpenGraphURL objects and provides a method that renders the collection
* to html.
*
* @author Jan-Hendrik Willms <tleilax+studip@gmail.com>
* @license GPL2 or any later version
*/
class OpenGraphURLCollection extends SimpleORMapCollection
{
/**
* Returns the class name of the object this collection accepts.
*
* @return String containing the provided class name 'OpenGraphURL'
*/
public function getClassName()
{
return 'OpenGraphURL';
}
/**
* Renders the collection to html. The collection is usually wrapped in
* a wrapper element but in some edge cases you might want to choose not
* to do so. This is enabled by the only parameter this method accepts.
*
* Note: I advice you not to exclude the wrapper. The javascript that
* handles the collection will fail!
*
* @param bool $with_wrapper Should the collection be wrapped in a wrapper
* element (optional, defaults to true)
* @return String containing the rendered collection as a html chunk
*/
public function render($with_wrapper = true)
{
if (!Config::Get()->OPENGRAPH_ENABLE || count($this) === 0) {
return '';
}
$rendered_urls = $this->sendMessage('render');
$rendered_urls = array_filter($rendered_urls);
if (count($rendered_urls) === 0) {
return '';
}
if ($with_wrapper) {
$template = $GLOBALS['template_factory']->open('shared/opengraph-container.php');
$template->urls = $rendered_urls;
$result = $template->render();
} else {
$result = implode("\n", $rendered_urls);
}
return $result;
}
}
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