| protected static _append ( array $changes, string $key, mixed $value, string $change ) : array | ||
| $changes | array | The full set of changes to be made to the database. |
| $key | string | The key of the field to append, which may be a dot-separated path if the value is or is contained within a nested object. |
| $value | mixed | The value to append to the changeset. Can be a scalar value, array, a nested object, or part of a nested object. |
| $change | string | The type of change, as to whether update/remove or rename etc. |
| return | array | Returns the value of `$changes`, with any new changed values appended. |
protected static function _append($changes, $key, $value, $change)
{
$options = array('finalize' => false);
if (!is_object($value) || !method_exists($value, 'export')) {
$changes[$change][$key] = $change === 'update' ? $value : true;
return $changes;
}
if (!$value->exists()) {
$changes[$change][$key] = static::_create($value->export(), $options);
return $changes;
}
if ($change === 'update') {
$export = compact('key') + $value->export();
return Set::merge($changes, static::_update($export));
}
if ($children = static::_update($value->export())) {
return Set::merge($changes, $children);
}
$changes[$change][$key] = true;
return $changes;
}