if ($db->query("SELECT COUNT(*) FROM students")->fetch(PDO::FETCH_NUM)[0] == 0) {
block("red", "no students registered");
- break;
+ exit;
}
block("black", "summary of everything for " . date("d.m.Y H:i"));
- $result = $db->query("SELECT firstname, lastname, mnumber, blackboard FROM students ORDER BY lastname");
+ $result = $db->query("SELECT firstname, lastname, mnumber, blackboard FROM students ORDER BY LOWER(lastname)");
print "<table>";
print "<td><b>First name </b></td><td><b>Last name </b></td><td><b>Matr.nummer </b></td><td><b>Examples </b></td><td><b>Blackboard </b></td>";
while ($student = $result->fetch(PDO::FETCH_ASSOC)) {
- $exdone = $db->query("SELECT manydone FROM workdone WHERE mnumber=" . $student['mnumber'])->fetch(PDO::FETCH_NUM);
$totexdone = 0;
- foreach($exdone as $subdone) { $totexdone += $subdone; }
+ if( $db->query("SELECT COUNT(*) FROM workdone WHERE mnumber=" . $student['mnumber'])->fetch(PDO::FETCH_NUM)[0] > 0 ) {
+ $exdone = $db->query("SELECT manydone FROM workdone WHERE mnumber=" . $student['mnumber']);
+ while ( $subdone = $exdone->fetch(PDO::FETCH_NUM) ) { $totexdone += $subdone[0]; }
+ }
print "<tr>";
print "<td>" . $student['firstname'] . "</td>";
print "<td>" . $student['lastname'] . "</td>";