--- loncom/interface/lonsearchcat.pm 2001/03/20 17:49:03 1.44 +++ loncom/interface/lonsearchcat.pm 2001/03/21 00:32:33 1.45 @@ -448,7 +448,7 @@ sub selectbox { return $selout.''; } -# ------------------------------------------------ Performing a advanced search +# ----------------------------------------------- Performing an advanced search sub advancedsearch { my ($r,$envhash)=@_; my %ENV=%{$envhash}; @@ -469,22 +469,22 @@ sub advancedsearch { my $query=''; - my $testquery=''; + my @queries; # Go through logical expression AND/OR/NOT phrase fields. foreach my $field ('title','author','subject','notes','abstract') { if ($ENV{'form.'.$field}) { - $testquery=build_SQL_query($field,$ENV{'form.'.$field}); + push @queries,&build_SQL_query($field,$ENV{'form.'.$field}); } } - -# my $concatarg=join('," ",', -# ('title', 'author', 'subject', 'notes', 'abstract')); - - $query="select * from metadata where $testquery"; - - my $reply=&Apache::lonnet::metadata_query($query); - - &output_results('Advanced',$r,$envhash,$query,$reply); + if (@queries) { + $query="(" . (join(") and ("),@queries) . ")"; + $query="select * from metadata where $testquery"; + my $reply=&Apache::lonnet::metadata_query($query); + &output_results('Advanced',$r,$envhash,$query,$reply); + } + else { + &output_results('Advanced',$r,$envhash,$query); + } return OK; }
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