public function removeNode(Path $path)
{
// cannot remove the entire gds data system
if ($path->root()) {
throw new NodeReadonlyException();
}
// load the row we're gonna be working with
try {
$this->getRow($path[0]);
} catch (TableRowNotFoundException $e) {
return false;
}
// removing an entire row
if ($path->length() == 1) {
// remove from loaded rows
if (array_key_exists($path[0], $this->loadedRows)) {
unset($this->loadedRows[$path[0]]);
}
// remove from unsaved rows
if (($i = array_search($path[0], $this->unsavedRows)) !== false) {
unset($this->unsavedRows[$i]);
}
// remove from rows to create
if (($i_toCreate = array_search($path[0], $this->rowsToCreate)) !== false) {
unset($this->rowsToCreate[$i_toCreate]);
}
// add to rows to remove, but only if it wasn't in rows to create
if (!in_array($path[0], $this->rowsToRemove) && $i_toCreate === false) {
$this->rowsToRemove[] = $path[0];
}
// successfully removed
return true;
}
if (!TraverseArray::remove($this->loadedRows, $path)) {
return false;
}
// unsaved
if (!in_array($path[0], $this->unsavedRows)) {
$this->unsavedRows[] = $path[0];
}
return true;
// current node pointer
$currentNode =& $this->loadedRows;
}
/**
* Append some segments at the end of this path
*/
public function append($path)
{
if (!is_array($path) && !is_string($path) && !$path instanceof Path) {
$path = [$path];
}
$path = new Path($path);
$this->path = array_merge($this->toArray(), $path->toArray());
return $this;
}
/**
* Remove a node
* @return bool Returns true if node node has been removed, false if it doesn't exist already
*/
public static function remove(&$array, $path, $handleMounting = false, $onMountHit = null)
{
$path = new Path($path);
if ($path->root()) {
throw new MyceliumException("Cannot remove entire array.");
}
$node =& $array;
for ($i = 0; $i < $path->length(); $i++) {
// is the current node a mounted node?
if ($handleMounting && array_key_exists("@mount", $node)) {
// callback(mounterClass, relativePath, pathToTheMountNode)
$onMountHit($node["@mount"], $path->cut($i), $path->clamp($i));
}
// does the next node exist?
if (!array_key_exists($path[$i], $node)) {
return false;
}
// last path segment?
if ($i == $path->length() - 1) {
// remove the node
unset($node[$path[$i]]);
return true;
}
// is the next node an array?
if (!is_array($node[$path[$i]])) {
return false;
}
// continue deeper
$node =& $node[$path[$i]];
}
}
