private function get_style_children($style_id)
{
// Load children for PROPFIND purposes
$children = array(array('uri' => "{midgardmvc_core::get_instance()->context->prefix}mgd:styles{$this->object_path}/", 'title' => $this->object_path, 'mimetype' => 'httpd/unix-directory', 'resource' => 'collection'));
// Styles
$mc = midgard_style::new_collector('up', $style_id);
$mc->set_key_property('name');
$mc->execute();
$styles = $mc->list_keys();
if (is_array($styles)) {
foreach ($styles as $name => $array) {
if (empty($name)) {
continue;
}
$children[] = array('uri' => "{midgardmvc_core::get_instance()->context->prefix}mgd:styles{$this->object_path}/{$name}/", 'title' => $name, 'mimetype' => 'httpd/unix-directory', 'resource' => 'collection');
}
}
// Elements
$qb = new midgard_query_builder('midgard_element');
$qb->add_constraint('style', '=', $style_id);
$qb->add_constraint('name', '<>', '');
$elements = $qb->execute();
if (is_array($elements)) {
foreach ($elements as $element) {
$children[] = array('uri' => "{midgardmvc_core::get_instance()->context->prefix}mgd:styles{$this->object_path}/{$element->name}.php", 'title' => $element->name, 'mimetype' => 'text/plain', 'size' => $element->metadata->size, 'revised' => $element->metadata->revised);
}
}
return $children;
}
/**
* Returns a style element that matches $name and is in style $id.
* Unlike mgd_get_element_by_name2 it also returns an element if it is not in
* the given style, but in one of its parent styles.
*
* @param int $id The style id to search in.
* @param string $name The element to locate.
* @return string Value of the found element, or false on failure.
*/
private function _get_element_in_styletree($id, $name)
{
static $cached = array();
if (!isset($cached[$id])) {
$cached[$id] = array();
}
if (array_key_exists($name, $cached[$id])) {
return $cached[$id][$name];
}
$element_mc = midgard_element::new_collector('style', $id);
$element_mc->set_key_property('guid');
$element_mc->add_value_property('value');
$element_mc->add_constraint('name', '=', $name);
$element_mc->execute();
$elements = $element_mc->list_keys();
if ($elements) {
foreach ($elements as $element_guid => $value) {
$value = $element_mc->get_subkey($element_guid, 'value');
midcom::get('cache')->content->register($element_guid);
$cached[$id][$name] = $value;
return $value;
}
}
// No such element on this level, check parents
$style_mc = midgard_style::new_collector('id', $id);
$style_mc->set_key_property('guid');
$style_mc->add_value_property('up');
$style_mc->execute();
$styles = $style_mc->list_keys();
foreach ($styles as $style_guid => $value) {
// FIXME: Should we register this also in the other case
midcom::get('cache')->content->register($style_guid);
$up = $style_mc->get_subkey($style_guid, 'up');
if ($up && $up != 0) {
$value = $this->_get_element_in_styletree($up, $name);
$cached[$id][$name] = $value;
return $value;
}
}
$cached[$id][$name] = false;
return $cached[$id][$name];
}