return (undef,undef) if !CheckValidNewsgroups($Newsgroups);
# just one newsgroup?
return (SQLGroupWildcard($Newsgroups),$Newsgroups) if $Newsgroups !~ /:/;
+ my ($SQL,@WildcardGroups,@NoWildcardGroups);
# list of newsgroups separated by ':'
- my $SQL = '(';
my @GroupList = split /:/, $Newsgroups;
foreach (@GroupList) {
- $SQL .= ' OR ' if $SQL gt '(';
- $SQL .= SQLGroupWildcard($_);
+ if ($_ !~ /%/) {
+ # add to list of newsgroup names WITHOUT wildcard
+ push (@NoWildcardGroups,$_);
+ } else {
+ # add to list of newsgroup names WITH wildcard
+ push (@WildcardGroups,$_);
+ # add wildcard to SQL clause
+ # 'OR' if SQL clause is not empty
+ $SQL .= ' OR ' if $SQL;
+ $SQL .= 'newsgroup LIKE ?'
+ }
};
- $SQL .= ')';
+ if (scalar(@NoWildcardGroups)) {
+ # add 'OR' if SQL clause is not empty
+ $SQL .= ' OR ' if $SQL;
+ if (scalar(@NoWildcardGroups) < 2) {
+ # special case: just one newsgroup without wildcard
+ $SQL .= 'newsgroup = ?';
+ } else {
+ # create list of newsgroups to include: 'newsgroup IN (...)'
+ $SQL .= 'newsgroup IN (';
+ my $SQLin;
+ foreach (@NoWildcardGroups) {
+ $SQLin .= ',' if $SQLin;
+ $SQLin .= '?';
+ }
+ # add list to SQL clause
+ $SQL .= $SQLin .= ')';
+ }
+ }
+ # add brackets '()' to SQL clause as needed (more than one wildcard group)
+ if (scalar(@WildcardGroups)) {
+ $SQL = '(' . $SQL .')';
+ }
+ # rebuild @GroupList in (now) correct order
+ @GroupList = (@WildcardGroups,@NoWildcardGroups);
return ($SQL,@GroupList);
};