public function render(Varien_Object $row)
{
if (in_array($row->getTypeId(), array('simple', 'virtual', 'downloadable'))) {
if (!$row->getManageLocalStock()) {
$html = "<span id='stock_difference_" . $row->getId() . "' style=''>-</span>";
} else {
if ($row->getDifference() == 0) {
$html = "<span id='stock_difference_" . $row->getId() . "' style='color:green'> == </span>";
} elseif ($row->getDifference() > 0) {
$html = "<span id='stock_difference_" . $row->getId() . "' style='color:red'> <b style='font-size:16px;'>> </b> (+" . $row->getDifference() . ") </span>";
} else {
$html = "<span id='stock_difference_" . $row->getId() . "' style='color:orange; '><b style='font-size:16px;'>< </b>(" . $row->getDifference() . ")</span>";
}
}
return "<input type='hidden' value='" . $row->getManageLocalStock() . "' id='manage_local_stock_" . $row->getId() . "' name='inventory[" . $row->getId() . "][manage_local_stock]'>" . $html;
} else {
return "-";
}
}
