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[webpac] / index_DBI.pm

diff --git a/index_DBI.pm b/index_DBI.pm
index 6729bd3..c366976 100644 (file)
--- a/index_DBI.pm
+++ b/index_DBI.pm
@@ -10,14 +10,19 @@ use HTML::Entities;
 use DBI;
 
 my %Table;     # index tables which where visited in this run
+my %sth_cache; # cache prepared statements
 
 sub new {
        my $class = shift;
        my $self = {};
        bless($self, $class);
 
-       # FIX: config params
-       $self->{dbh} = DBI->connect("DBI:Pg:dbname=webpac","dpavlin","") || die $DBI::errstr;
+       my $dbd = shift || die "need dbi_dbd= in [global] section of configuration file";
+       my $dsn = shift || die "need dbi_dsn= in [global] section of configuration file";
+       my $user = shift || die "need dbi_user= in [global] section of configuration file";
+       my $passwd = shift || die "need dbi_passwd= in [global] section of configuration file";
+
+       $self->{dbh} = DBI->connect("DBI:$dbd:$dsn",$user,$passwd) || die $DBI::errstr;
        # begin transaction
        $self->{dbh}->begin_work || die $self->{dbh}->errstr();
 
@@ -73,22 +78,25 @@ sub insert {
 
        if (! $Table{$field}) {
                $self->delete_and_create($field);
+
+               my $sql = "select item from $field where upper(item)=upper(?)";
+               $sth_cache{$field."select"} = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
+
+               $sql = "insert into $field (item,ident,count) values (?,?,?)";
+               $sth_cache{$field."insert"} = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
+
+               $sql = "update $field set count = count + 1 where item = ? and ident = ?";
+               $sth_cache{$field."update"} = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
        }
        $Table{$field}++;
 
-       my $sql = "select item from $field where upper(item)=upper(?)";
-       my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
-       $sth->execute($index_data) || die "sql: $sql; ".$self->{dbh}->errstr();
-       if (! $sth->fetchrow_hashref) {
-               my $sql = "insert into $field (item,ident,count) values (?,?,?)";
-               my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
+       $sth_cache{$field."select"}->execute($index_data) || die "cache: $field select; ".$self->{dbh}->errstr();
+       if (! $sth_cache{$field."select"}->fetchrow_hashref) {
                $index_data = substr($index_data,0,255);
-               $sth->execute($index_data,$ident,1) || die "sql: $sql; ".$self->{dbh}->errstr();
+               $sth_cache{$field."insert"}->execute($index_data,$ident,1) || die "cache: $field insert; ".$self->{dbh}->errstr();
 #print stderr "in index: $index_data\n";
        } else {
-               my $sql = "update $field set count = count + 1 where item = ? and ident = ?";
-               my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
-               $sth->execute($index_data,$ident) || die "sql: $sql; ".$self->{dbh}->errstr();
+               $sth_cache{$field."update"}->execute($index_data,$ident) || die "cache: $field update; ".$self->{dbh}->errstr();
        }
 }
 
@@ -137,7 +145,7 @@ sub fetch {
        $sth->execute() || die "execute: $sql; ".$self->{dbh}->errstr();
        my @arr;
        while (my $row = $sth->fetchrow_hashref) {
-               $row->{item} = HTML::Entities::encode($row->{item});
+               $row->{item} = HTML::Entities::encode($row->{item},'<>&"');
                push @arr,$row;
        }
        return @arr;
@@ -177,6 +185,9 @@ sub close {
 # FIX
 print STDERR "creating ord for $table...\n";
                        create_ord($table);
+                       undef $sth_cache{$table."select"};
+                       undef $sth_cache{$table."insert"};
+                       undef $sth_cache{$table."update"};
                }
 
                $self->{dbh}->disconnect;