source/Spiral/ORM/Entities/Nodes/AbstractNode.php
private function ensurePlaceholders(array &$data)
    {
        //Let's force placeholders for every sub loaded
        foreach ($this->nodes as $name => $node) {
            $data[$name] = $node instanceof ArrayInterface ? [] : null;
        }
    }
private function ensurePlaceholders(array &$data)
    {
        //Let's force placeholders for every sub loaded
        foreach ($this->nodes as $name => $node) {
            $data[$name] = $node instanceof ArrayInterface ? [] : null;
        }
    }
private function ensurePlaceholders ( array & $ data ) { //Let's force placeholders for every sub loaded foreach ( $ this -> nodes as $ name => $ node ) { $ data [ $ name ] = $ node instanceof ArrayInterface ? [ ] : null ; } }
Create placeholders for each of sub nodes.

@param array $data
Create placeholders for each of sub nodes .