+sub process_query {
+ $main::lxdebug->enter_sub();
+
+ my ($self, $dbh, $filename, $version_or_control, $db_charset) = @_;
+
+ my $form = $self->{form};
+ my $fh = IO::File->new($filename, "r") or $form->error("$filename : $!\n");
+ my $query = "";
+ my $sth;
+ my @quote_chars;
+
+ my $file_charset = Common::DEFAULT_CHARSET;
+ while (<$fh>) {
+ last if !/^--/;
+ next if !/^--\s*\@charset:\s*(.+)/;
+ $file_charset = $1;
+ last;
+ }
+ $fh->seek(0, SEEK_SET);
+
+ $db_charset ||= Common::DEFAULT_CHARSET;
+
+ $dbh->begin_work();
+
+ while (<$fh>) {
+ $_ = SL::Iconv::convert($file_charset, $db_charset, $_);
+
+ # Remove DOS and Unix style line endings.
+ chomp;
+
+ # remove comments
+ s/--.*$//;
+
+ for (my $i = 0; $i < length($_); $i++) {
+ my $char = substr($_, $i, 1);
+
+ # Are we inside a string?
+ if (@quote_chars) {
+ if ($char eq $quote_chars[-1]) {
+ pop(@quote_chars);
+ }
+ $query .= $char;
+
+ } else {
+ if (($char eq "'") || ($char eq "\"")) {
+ push(@quote_chars, $char);
+
+ } elsif ($char eq ";") {
+
+ # Query is complete. Send it.
+
+ $sth = $dbh->prepare($query);
+ if (!$sth->execute()) {
+ my $errstr = $dbh->errstr;
+ $sth->finish();
+ $dbh->rollback();
+ $form->dberror("The database update/creation did not succeed. " .
+ "The file ${filename} containing the following " .
+ "query failed:<br>${query}<br>" .
+ "The error message was: ${errstr}<br>" .
+ "All changes in that file have been reverted.");
+ }
+ $sth->finish();
+
+ $char = "";
+ $query = "";
+ }
+
+ $query .= $char;
+ }
+ }
+
+ # Insert a space at the end of each line so that queries split
+ # over multiple lines work properly.
+ if ($query ne '') {
+ $query .= @quote_chars ? "\n" : ' ';
+ }
+ }
+
+ if (ref($version_or_control) eq "HASH") {
+ $dbh->do("INSERT INTO schema_info (tag, login) VALUES (" .
+ $dbh->quote($version_or_control->{"tag"}) . ", " .
+ $dbh->quote($form->{"login"}) . ")");
+ } elsif ($version_or_control) {
+ $dbh->do("UPDATE defaults SET version = " .
+ $dbh->quote($version_or_control));
+ }
+ $dbh->commit();
+
+ $fh->close();
+
+ $main::lxdebug->leave_sub();
+}
+