Subgrid – Select with variable – empy results

QuestionsSubgrid – Select with variable – empy results
Mauro asked 7 years ago

Hi,
In my subgrid_detail i fetch the _POST(SN) then i want to use it to make a select…like this:

// you can provide custom SQL query to display data
$serial = mysql_real_escape_string($_POST['SN']);
$g->select_command = "SELECT * FROM thermo WHERE SN = '$serial'";

The issue is that mysql return no results…where is the error?

(if i do echo $serial i see that the SN is correct but it seems that into the query is empty)

Thanks

1 Answers
Abu Ghufran answered 7 years ago

The POST cannot be used in query directly.
You need a session variable persistance.

e.g.
if (!empty($_POST["SN"]))
{
$_SESSION["SN"] = $_POST["SN"];
}
$serial = $_SESSION["SN"];

and use `$serial` in your SQL.

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