+ my $left=$self->left();
+ my $right=$self->right();
+ return ("", @outjoins) unless($left || $right);
+ my ($leftstr, @leftjoins) = $left->to_sql($hasvals, $not, @joins) if($left);
+ push(@joins, @leftjoins);
+ push(@outjoins, @leftjoins);
+ my $op=$self->name();
+ if(defined($op) && $self->type() eq "boolean")
+ {
+ # if we are ANDing, add an inner join
+ # also if we are NOTing, but we are looking for a tag *value*
+ if( ($op eq "AND") || ($hasvals && ($op eq "NOT")))
+ {
+ # hack - if right child is a NOT, we don't need extra join/brackets
+ # NOT will do the same and we will end up with an extra one
+ unless($right && $right->name() && $right->name() eq "NOT")
+ {
+ push(@joins, "INNER");
+ push(@outjoins, "INNER");
+ }
+ }
+ elsif($op eq "NOT")
+ {
+ $not=1;
+ push(@joins, "LEFT");
+ push(@outjoins, "LEFT");
+# print("LEFT: ", $left->print(), "\n") if ($left);
+# print("RIGHT: ", $right->print(), "\n") if($right);
+ }
+ }
+ my ($rightstr, @rightjoins) = $right->to_sql($hasvals, $not, @joins) if($right);
+ push(@outjoins, @rightjoins);
+# print "LEFT (", scalar(@leftjoins), "): $leftstr\n";
+# print "RIGHT (", scalar(@rightjoins), "): $rightstr\n";
+ my $str=$leftstr;
+ $str .= " $op " if($op && !$not);
+ $str .= $rightstr;
+ if($op || ($left && $right))
+ {
+ $str="(" . $str . ")";
+ }
+# print "STR: $str\n";
+ return($str, @outjoins);