private function _setDetails(array $data)
{
$this->_fieldCrawler->build($this->_product->type);
$details = new Product\Type\DetailCollection();
foreach ($this->_fieldCrawler as $name => $field) {
$value = $data[$this->_headingKeys->getKey($name)];
if ('' !== (string) $value) {
$field->setValue($value);
$details->{$name} = $field;
}
}
$this->_product->setDetails($details);
}