|
package SL::Helper::Csv::Dispatcher;
|
|
|
|
use strict;
|
|
|
|
use Data::Dumper;
|
|
use Carp;
|
|
use Scalar::Util qw(weaken);
|
|
use Rose::Object::MakeMethods::Generic scalar => [ qw(
|
|
_specs _errors
|
|
) ];
|
|
|
|
use SL::Helper::Csv::Error;
|
|
|
|
sub new {
|
|
my ($class, $parent) = @_;
|
|
my $self = bless { }, $class;
|
|
|
|
weaken($self->{_csv} = $parent);
|
|
$self->_errors([]);
|
|
|
|
return $self;
|
|
}
|
|
|
|
sub dispatch {
|
|
my ($self, $obj, $line) = @_;
|
|
|
|
for my $spec (@{ $self->_specs }) {
|
|
$self->apply($obj, $spec, $line->{$spec->{key}});
|
|
}
|
|
}
|
|
|
|
sub apply {
|
|
my ($self, $obj, $spec, $value) = @_;
|
|
return unless $value;
|
|
|
|
for my $step (@{ $spec->{steps} }) {
|
|
my ($acc, $class, $index) = @$step;
|
|
if ($class) {
|
|
|
|
# autovifify
|
|
if (defined $index) {
|
|
if (! $obj->$acc || !$obj->$acc->[$index]) {
|
|
my @objects = $obj->$acc;
|
|
$obj->$acc(@objects, map { $class->new } 0 .. $index - @objects);
|
|
}
|
|
$obj = $obj->$acc->[$index];
|
|
} else {
|
|
if (! $obj->$acc) {
|
|
$obj->$acc($class->new);
|
|
}
|
|
$obj = $obj->$acc;
|
|
}
|
|
|
|
} else {
|
|
$obj->$acc($value);
|
|
}
|
|
}
|
|
}
|
|
|
|
sub is_known {
|
|
my ($self, $col) = @_;
|
|
return grep { $col eq $_->{key} } $self->_specs;
|
|
}
|
|
|
|
sub parse_profile {
|
|
my ($self, %params) = @_;
|
|
|
|
my $header = $self->_csv->header;
|
|
my $profile = $self->_csv->profile;
|
|
my @specs;
|
|
|
|
for my $col (@$header) {
|
|
next unless $col;
|
|
if ($self->_csv->strict_profile) {
|
|
if (exists $profile->{$col}) {
|
|
push @specs, $self->make_spec($col, $profile->{$col});
|
|
} else {
|
|
$self->unknown_column($col, undef);
|
|
}
|
|
} else {
|
|
push @specs, $self->make_spec($col, $profile->{$col} || $col);
|
|
}
|
|
}
|
|
|
|
$self->_specs(\@specs);
|
|
$self->_csv->_push_error($self->errors);
|
|
return ! $self->errors;
|
|
}
|
|
|
|
sub make_spec {
|
|
my ($self, $col, $path) = @_;
|
|
|
|
my $spec = { key => $col, steps => [] };
|
|
my $cur_class = $self->_csv->class;
|
|
|
|
for my $step_index ( split /\.(?!\d)/, $path ) {
|
|
my ($step, $index) = split /\./, $step_index;
|
|
if ($cur_class->can($step)) {
|
|
if (my $rel = $cur_class->meta->relationship($step)) { #a
|
|
if ($index && ! $rel->isa('Rose::DB::Object::Metadata::Relationship::OneToMany')) {
|
|
$self->_push_error([
|
|
$path,
|
|
undef,
|
|
"Profile path error. Indexed relationship is not OneToMany around here: '$step_index'",
|
|
undef,
|
|
0,
|
|
]);
|
|
return;
|
|
} else {
|
|
my $next_class = $cur_class->meta->relationship($step)->class;
|
|
push @{ $spec->{steps} }, [ $step, $next_class, $index ];
|
|
$cur_class = $next_class;
|
|
eval "require $cur_class; 1" or die "could not load class '$cur_class'";
|
|
}
|
|
} else { # simple dispatch
|
|
push @{ $spec->{steps} }, [ $step ];
|
|
last;
|
|
}
|
|
} else {
|
|
$self->unknown_column($col, $path);
|
|
}
|
|
}
|
|
|
|
return $spec;
|
|
}
|
|
|
|
sub unknown_column {
|
|
my ($self, $col, $path) = @_;
|
|
return if $self->_csv->ignore_unknown_columns;
|
|
|
|
$self->_push_error([
|
|
$col,
|
|
undef,
|
|
"header field '$col' is not recognized",
|
|
undef,
|
|
0,
|
|
]);
|
|
}
|
|
|
|
sub _csv {
|
|
$_[0]->{_csv};
|
|
}
|
|
|
|
sub errors {
|
|
@{ $_[0]->_errors }
|
|
}
|
|
|
|
sub _push_error {
|
|
my ($self, @errors) = @_;
|
|
my @new_errors = ($self->errors, map { SL::Helper::Csv::Error->new(@$_) } @errors);
|
|
$self->_errors(\@new_errors);
|
|
}
|
|
|
|
1;
|