-
-my $sdate = DateTime->new(
- year => $cgi->param('start_year'),
- month => $cgi->param('start_month'),
-)->epoch();
-
-my $edate = DateTime->new(
- year => $cgi->param('end_year'),
- month => ($cgi->param('end_month') % 12 + 1) # first day of the next month
-)->epoch();
-
-my $where .= " AND signupdate >= $sdate ".
- " AND signupdate <= $edate ";
+my $sdate = $cgi->param('start_year').
+ '-'.
+ $cgi->param('start_month').
+ '-01';
+my $edate = ($cgi->param('end_year') +
+ ($cgi->param('end_month')==12)).
+ '-'.
+ ($cgi->param('end_month') % 12 + 1).
+ '-01'; # first day of the next month
+
+my $sql = "AND signupdate >= ".str2time($sdate).
+ " AND signupdate < ".str2time($edate);