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();
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();
}
}
# 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;