/**
* Load content tree from a flat array of hashes (from the database?)
*
* This method uses recursion to load the tree.
*
* @internal
* @access private
* @param array The data to import
* @param integer (optional) The parent id to load the tree from (default is -1)
* @param cms_content_tree (optional) The cms_content_tree node to add generated objects to.
* @return cms_content_tree
*/
public static function load_from_list($data, $parent_id = -1, cms_content_tree &$tree = null)
{
for ($i = 0; $i < count($data); $i++) {
$row = $data[$i];
if ($row['parent_id'] < $parent_id) {
continue;
}
if ($row['parent_id'] > $parent_id) {
break;
}
// create a tree object
if (!is_object($tree)) {
$tree = new cms_content_tree();
}
$node = new cms_content_tree(array('id' => $row['content_id'], 'alias' => $row['content_alias']));
self::load_from_list($data, $row['content_id'], $node);
$tree->add_node($node);
}
return $tree;
}
/**
* Load tree from a flat, CSV encoded list.
*
* This function accepts an array of ASCII encoded lines like:
* the_alias,gr_grandparent.grandparent.parent
*
* @internal
* @access private
* @param array The csv data to import
* @param char The delimiter separating hierarchy paths
* @param char The delimiter separating the node alias from the path.
* @return cms_tree
*/
public static function load_from_list($data, $path_delim = '.', $alias_delim = ',')
{
$tree = new cms_content_tree();
$count = 0;
$nodelist = array();
if (!is_array($data)) {
return $count;
}
for ($i = 0; $i < count($data); $i++) {
$line =& $data[$i];
list($path, $alias) = explode($alias_delim, $line, 2);
$path_parts = explode($path_delim, $path);
if (count($path_parts) == 1) {
if (isset($node_list[$path])) {
continue;
}
$obj = new cms_content_tree(array('id' => (int) $path_parts[0], 'alias' => $alias));
$node_list[$path] = $obj;
$tree->add_node($obj);
} else {
$parent = $tree;
for ($j = 0; $j < count($path_parts); $j++) {
$cur_path = implode($path_delim, array_slice($path_parts, 0, $j + 1));
if (isset($node_list[$cur_path])) {
continue;
}
$parent_id = (int) $path_parts[$j - 1];
$parent = $tree->find_by_tag('id', $parent_id);
$obj = new cms_content_tree(array('id' => (int) $path_parts[$j], 'alias' => $alias));
$node_list[$cur_path] = $obj;
$parent->add_node($obj);
}
}
}
return $tree;
}
