--- lib/A3C/Model/User.pm	2008/03/18 19:22:30	33
+++ lib/A3C/Model/User.pm	2008/03/18 19:58:34	35
@@ -64,7 +64,7 @@
 
 	column hrEduPersonUniqueNumber =>
 #		is mandatory,
-		label is _('JMBG');
+		label is _('Unique number');
 
 	column hrEduPersonDateOfBirth =>
 		type is 'date',
@@ -340,6 +340,46 @@
 
 	return ( 1, 'OK' );
 }
+
+=head hrEduPersonUniqueNumber
+
+Check if JMBG is valid
+
+=cut
+
+sub validate_hrEduPersonUniqueNumber {
+	my ( $self, $value ) = @_;
+
+	if ( $value =~ m/^JMBG:\s+(\d+)$/ ) {
+
+		my $jmbg = $1;
+
+		return ( 0, _('JMBG must have 13 digits') ) unless length($jmbg) == 13;
+
+		sub digit_at {
+			my ($jmbg,$pos) = @_;
+			return ord(substr($jmbg,$pos,1)) - ord('0');
+		}
+
+		my $sum;
+		my $fact = 7;
+
+		foreach my $i ( 0 .. 11 ) {
+			my $c = digit_at( $jmbg, $i );
+			$sum += $c * $fact;
+#			warn "## $c * $fact => $sum\n";
+			$fact--;
+			$fact = 7 if $fact == 1;
+		}
+
+		my $ost = $sum % 11;
+		$ost = 11 - $ost if $ost > 1;
+
+		return ( 0, _("JMBG is invalid") ) if $ost != digit_at( $jmbg, 12 );
+	}
+
+	return ( 1, 'OK' );
+}
 
 =head2 canonicalize_hrEduPersonExpireDate