=head2 fetch_AoH()

      @aoh = $database->fetch_AoH($sql)

=cut

sub fetch_AoH {
        my ($self, @p) = getSelf(@_);
        my $sql = shift @p;
        my @r;
        eval('
        my $sth = $dbh->prepare($sql);
        if(defined $p[0]) {
                $sth->execute(@p) or warn $dbh->errstr;
        } else {
                $sth->execute() or warn $dbh->errstr;
        }
        while(my $h = $sth->fetchrow_hashref) {
                push(@r, $h);
        }
        $sth->finish();');
        @r = $@ if $@;
        return @r;
}

=head2 fetch_hashref()

      $hashref = $database->fetch_hashref($sql)

=cut

sub fetch_hashref {
        my ($self, @p) = getSelf(@_);
        my $sql = shift @p;
        my $h;
        eval('
        my $sth = $dbh->prepare($sql);
        if(defined $p[0]) {
                $sth->execute(@p) or warn $dbh->errstr;
        } else {
                $sth->execute() or warn $dbh->errstr;
        }
        my @r;
        $h = $sth->fetchrow_hashref();
        $sth->finish();
        ');
        $h = "$@" if $@;
        return $h;
}

=head2 void()

        void(sql)

=cut

sub void {
        my ($self, @p) = getSelf(@_);
        my $sql = shift @p;
        my $sth = $dbh->prepare($sql);
        eval('
        if(defined $p[0]) {
                $sth->execute(@p) or warn $dbh->errstr;
        } else {
                $sth->execute() or warn $dbh->errstr;
        }');
        $sth->finish();
        return "$@" if $@;
}

=head2 quote()

       $quotedString = $database->quote($sql);

=cut

sub quote {
        my ($self, @p) = getSelf(@_);
        my $sql = $p[0];
        return $dbh->quote($sql);
}

=head1 Privat

=head2 updateModules()

=cut

sub updateModules {
        my ($self, @p) = getSelf(@_);
        my @q = $self->fetch_array("select title from querys");
        $functions{$_} = $_ foreach (@q);
}

=head2 getSelf()

=cut

sub getSelf {
        return @_ if defined($_[0]) && (!ref($_[0])) && ($_[0] eq 'DBI::LZE');
        return (defined($_[0]) && (ref($_[0]) eq 'DBI::LZE' || UNIVERSAL::isa($_[0], 'DBI::LZE'))) ? @_ : ($DBI::LZE::DefaultClass->new, @_);
}

=head2 AUTOLOAD()

        statements add by addexecute can called like 

        $database->showTables()

=cut

sub AUTOLOAD {
        my ($self, @p) = getSelf(@_);
        our $AUTOLOAD;
        if($AUTOLOAD =~ /.*::(\w+)$/ and grep $1 eq $_, %functions) {
                my $attr = $1;
                {
                        no strict 'refs';
                        *{$AUTOLOAD} = sub {
                                $self->useexecute($attr, @p);
                        };
                }
                goto &{$AUTOLOAD};
        }
}

package DBI::LZE::db;
use vars qw(@ISA);
@ISA = qw(DBI::db);

=head2 prepare()


=cut

sub prepare {
        my ($dbh, @args) = @_;
        my $sth = $dbh->SUPER::prepare(@args) or return;
        return $sth;
}

package DBI::LZE::st;
use vars qw(@ISA);
@ISA = qw(DBI::st);

=head2 execute()


=cut

sub execute {
        my ($sth, @args) = @_;
        my $rv;
        eval('$rv = $sth->SUPER::execute(@args)');
        return "$@" if $@;
        return $rv;
}

=head2 fetch()


=cut

sub fetch {
        my ($sth, @args) = @_;
        my $row = $sth->SUPER::fetch(@args) or return;
        return $row;
}

1;