public function setData(ExportDataInterface $data)
{
$this->export_data = $data;
$data->normalize('');
return $this;
}
public function merge(ExportDataInterface $data, $empty_value)
{
// Normalize columns on incoming
$this->normalize($empty_value);
$data->normalize($empty_value);
foreach (array_keys($this->data) as $page_id) {
foreach ($this->data[$page_id] as $key => $row) {
$this->data[$page_id][$key] += $row;
}
}
// Normalize result
$this->normalize($empty_value);
return $this;
}
