Trying to guess your DB table structure, probably something of the sorts of the following should work:
I would assume you are using
You can check the documentation regarding DB methods in the following link:
https://docs.mybb.com/1.8/development/pl...e-methods/
$mybb->user['uid'] = (int)$mybb->user['uid'];//(probably not necessary) (current user)
$query = $db->simple_select('YOUR_TABLE_NAME', '*', "uid='{$mybb->user['uid']}'");
if($db->num_rows($query))
{
error("There is a row for you already in the database, regardless of its content you can't create a new one.");
}
I would assume you are using
$db->insert_query()
to insert your data into the DB, and you can use $db->update_query()
if you want to update data as well.You can check the documentation regarding DB methods in the following link:
https://docs.mybb.com/1.8/development/pl...e-methods/