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package DBI::Gofer::Response;
# $Id: Response.pm 11565 2008-07-22 20:17:33Z Tim $
#
# Copyright (c) 2007, Tim Bunce, Ireland
#
# You may distribute under the terms of either the GNU General Public
# License or the Artistic License, as specified in the Perl README file.
use strict;
use Carp;
use DBI qw(neat neat_list);
use base qw(DBI::Util::_accessor Exporter);
our $VERSION = "0.011566";
use constant GOf_RESPONSE_EXECUTED => 0x0001;
our @EXPORT = qw(GOf_RESPONSE_EXECUTED);
__PACKAGE__->mk_accessors(qw(
version
rv
err
errstr
state
flags
last_insert_id
dbh_attributes
sth_resultsets
warnings
));
__PACKAGE__->mk_accessors_using(make_accessor_autoviv_hashref => qw(
meta
));
sub new {
my ($self, $args) = @_;
$args->{version} ||= $VERSION;
chomp $args->{errstr} if $args->{errstr};
return $self->SUPER::new($args);
}
sub err_errstr_state {
my $self = shift;
return @{$self}{qw(err errstr state)};
}
sub executed_flag_set {
my $flags = shift->flags
or return 0;
return $flags & GOf_RESPONSE_EXECUTED;
}
sub add_err {
my ($self, $err, $errstr, $state, $trace) = @_;
# acts like the DBI's set_err method.
# this code copied from DBI::PurePerl's set_err method.
chomp $errstr if $errstr;
$state ||= '';
carp ref($self)."->add_err($err, $errstr, $state)"
if $trace and defined($err) || $errstr;
my ($r_err, $r_errstr, $r_state) = ($self->{err}, $self->{errstr}, $self->{state});
if ($r_errstr) {
$r_errstr .= sprintf " [err was %s now %s]", $r_err, $err
if $r_err && $err && $r_err ne $err;
$r_errstr .= sprintf " [state was %s now %s]", $r_state, $state
if $r_state and $r_state ne "S1000" && $state && $r_state ne $state;
$r_errstr .= "\n$errstr" if $r_errstr ne $errstr;
}
else {
$r_errstr = $errstr;
}
# assign if higher priority: err > "0" > "" > undef
my $err_changed;
if ($err # new error: so assign
or !defined $r_err # no existing warn/info: so assign
# new warn ("0" len 1) > info ("" len 0): so assign
or defined $err && length($err) > length($r_err)
) {
$r_err = $err;
++$err_changed;
}
$r_state = ($state eq "00000") ? "" : $state
if $state && $err_changed;
($self->{err}, $self->{errstr}, $self->{state}) = ($r_err, $r_errstr, $r_state);
return undef;
}
sub summary_as_text {
my $self = shift;
my ($context) = @_;
my ($rv, $err, $errstr, $state) = ($self->{rv}, $self->{err}, $self->{errstr}, $self->{state});
my @s = sprintf("\trv=%s", (ref $rv) ? "[".neat_list($rv)."]" : neat($rv));
$s[-1] .= sprintf(", err=%s, errstr=%s", $err, neat($errstr))
if defined $err;
$s[-1] .= sprintf(", flags=0x%x", $self->{flags})
if defined $self->{flags};
push @s, "last_insert_id=%s", $self->last_insert_id
if defined $self->last_insert_id;
if (my $dbh_attr = $self->dbh_attributes) {
my @keys = sort keys %$dbh_attr;
push @s, sprintf "dbh= { %s }", join(", ", map { "$_=>".neat($dbh_attr->{$_},100) } @keys)
if @keys;
}
for my $rs (@{$self->sth_resultsets || []}) {
my ($rowset, $err, $errstr, $state)
= @{$rs}{qw(rowset err errstr state)};
my $summary = "rowset: ";
my $NUM_OF_FIELDS = $rs->{NUM_OF_FIELDS} || 0;
my $rows = $rowset ? @$rowset : 0;
if ($rowset || $NUM_OF_FIELDS > 0) {
$summary .= sprintf "%d rows, %d columns", $rows, $NUM_OF_FIELDS;
}
$summary .= sprintf ", err=%s, errstr=%s", $err, neat($errstr) if defined $err;
if ($rows) {
my $NAME = $rs->{NAME};
# generate
my @colinfo = map { "$NAME->[$_]=".neat($rowset->[0][$_], 30) } 0..@{$NAME}-1;
$summary .= sprintf " [%s]", join ", ", @colinfo;
$summary .= ",..." if $rows > 1;
# we can be a little more helpful for Sybase/MSSQL user
$summary .= " syb_result_type=$rs->{syb_result_type}"
if $rs->{syb_result_type} and $rs->{syb_result_type} != 4040;
}
push @s, $summary;
}
for my $w (@{$self->warnings || []}) {
chomp $w;
push @s, "warning: $w";
}
if ($context && %$context) {
my @keys = sort keys %$context;
push @s, join(", ", map { "$_=>".$context->{$_} } @keys);
}
return join("\n\t", @s). "\n";
}
sub outline_as_text { # one-line version of summary_as_text
my $self = shift;
my ($context) = @_;
my ($rv, $err, $errstr, $state) = ($self->{rv}, $self->{err}, $self->{errstr}, $self->{state});
my $s = sprintf("rv=%s", (ref $rv) ? "[".neat_list($rv)."]" : neat($rv));
$s .= sprintf(", err=%s %s", $err, neat($errstr))
if defined $err;
$s .= sprintf(", flags=0x%x", $self->{flags})
if $self->{flags};
if (my $sth_resultsets = $self->sth_resultsets) {
$s .= sprintf(", %d resultsets ", scalar @$sth_resultsets);
my @rs;
for my $rs (@{$self->sth_resultsets || []}) {
my $summary = "";
my ($rowset, $err, $errstr)
= @{$rs}{qw(rowset err errstr)};
my $NUM_OF_FIELDS = $rs->{NUM_OF_FIELDS} || 0;
my $rows = $rowset ? @$rowset : 0;
if ($rowset || $NUM_OF_FIELDS > 0) {
$summary .= sprintf "%dr x %dc", $rows, $NUM_OF_FIELDS;
}
$summary .= sprintf "%serr %s %s", ($summary?", ":""), $err, neat($errstr)
if defined $err;
push @rs, $summary;
}
$s .= join "; ", map { "[$_]" } @rs;
}
return $s;
}
1;
=head1 NAME
DBI::Gofer::Response - Encapsulate a response from DBI::Gofer::Execute to DBD::Gofer
=head1 DESCRIPTION
This is an internal class.
=head1 AUTHOR
Tim Bunce, L<http://www.tim.bunce.name>
=head1 LICENCE AND COPYRIGHT
Copyright (c) 2007, Tim Bunce, Ireland. All rights reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlartistic>.
=cut