Komfort- und Hilfsfunktionen fuer den Datenbankzugriff.

diff --git a/SL/DBUtils.pm b/SL/DBUtils.pm
new file mode 100644 (file)
index 0000000..05837b5
--- /dev/null
+++ b/SL/DBUtils.pm
@@ -0,0 +1,43 @@
+package SL::DBUtils;
+
+require Exporter;
+@ISA = qw(Exporter);
+
+@EXPORT = qw(conv_i conv_date do_query dump_query);
+
+sub conv_i {
+  my ($value, $default) = @_;
+  return (defined($value) && "$value" ne "") ? $value * 1 : $default;
+}
+
+sub conv_date {
+  my ($value) = @_;
+  return (defined($value) && "$value" ne "") ? $value : undef;
+}
+
+sub do_query {
+  my ($form, $dbh, $query) = splice(@_, 0, 3);
+
+  if (0 == scalar(@_)) {
+    $dbh->do($query) || $form->dberror($query);
+  } else {
+    $dbh->do($query, undef, @_) ||
+      $form->dberror($query . " (" . join(", ", @_) . ")");
+  }
+}
+
+sub dump_query {
+  my ($level, $msg, $query) = splice(@_, 0, 3);
+  while ($query =~ /\?/) {
+    my $value = shift(@_);
+    $value =~ s/\'/\\\'/g;
+    $value = "'${value}'";
+    $query =~ s/\?/$value/;
+  }
+
+  $msg .= " " if ($msg);
+
+  $main::lxdebug->message($level, $msg . $query);
+}
+
+1;