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();
my $field = shift;
+#print "#### delete_and_create($field)\n";
+
$self->{dbh}->commit;
- $self->{dbh}->begin_work;
my $sql = "select count(*) from $field";
my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr();
# FIX: this is not a good way to check if table exists!
- if (1 || $sth->execute() && $sth->fetchrow_hashref) {
+ if ($sth->execute() && $sth->fetchrow_hashref) {
my $sql = "drop table $field";
-# my $sth = $self->{dbh}->do($sql) || die "SQL: $sql ".$self->{dbh}->errstr();
+ $self->{dbh}->begin_work;
+ my $sth = $self->{dbh}->do($sql) || die "SQL: $sql ".$self->{dbh}->errstr();
+ $self->{dbh}->commit;
}
$sql = "create table $field (
item varchar(255),
ord int,
primary key (item,ident)
)";
-# $sth = $self->{dbh}->do($sql) || die "SQL: $sql ".$self->{dbh}->errstr();
- $sth = $self->{dbh}->do($sql) || warn "SQL: $sql ".$self->{dbh}->errstr();
+ $self->{dbh}->begin_work;
+ $sth = $self->{dbh}->do($sql); # || warn "SQL: $sql ".$self->{dbh}->errstr();
$self->{dbh}->commit;
+
$self->{dbh}->begin_work;
}
my $self = shift;
my $field = shift;
- my $index_data = shift || return;
- my $ident = shift || return; # e.g. library id
+ my $index_data = shift || print STDERR "\$index->insert($field,NULL,...)";
+ my $ident = shift || ''; # e.g. library id
if (! $index_data) {
print STDERR "\$index->insert() -- no value to insert\n";
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();
- $sth->execute($index_data,$ident,1) || die "sql: $sql; ".$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);
+ $sth_cache{$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();
}
}
$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;
$self->{dbh}->begin_work || die $self->{dbh}->errstr();
- my $sql = "select oid from $table order by item";
+ my $sql = "select oid from $table order by upper(item)";
my $sth = $self->{dbh}->prepare($sql) || die "sql: $sql; ".$self->{dbh}->errstr();
$sql = "update $table set ord=? where oid=?";
my $sth_update = $self->{dbh}->prepare($sql) || die "sql: $sql; ".$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;