1 package DBIx::Class::FilterColumn;
6 use base qw/DBIx::Class::Row/;
9 my ($self, $col, $attrs) = @_;
11 $self->throw_exception("No such column $col to filter")
12 unless $self->has_column($col);
14 $self->throw_exception("filter_column needs attr hashref")
15 unless ref $attrs eq 'HASH';
17 $self->column_info($col)->{_filter_info} = $attrs;
18 my $acc = $self->column_info($col)->{accessor};
19 $self->mk_group_accessors('filtered_column' => [ (defined $acc ? $acc : $col), $col]);
23 sub _filtered_column {
24 my ($self, $col, $value) = @_;
26 return $value unless defined $value;
28 my $info = $self->column_info($col)
29 or $self->throw_exception("No column info for $col");
31 return $value unless exists $info->{_filter_info};
33 my $filter = $info->{_filter_info}{filter};
34 $self->throw_exception("No inflator for $col") unless defined $filter;
36 return $self->$filter($value);
39 sub _unfiltered_column {
40 my ($self, $col, $value) = @_;
42 my $info = $self->column_info($col) or
43 $self->throw_exception("No column info for $col");
45 return $value unless exists $info->{_filter_info};
47 my $unfilter = $info->{_filter_info}{unfilter};
48 $self->throw_exception("No unfilter for $col") unless defined $unfilter;
49 return $self->$unfilter($value);
52 sub get_filtered_column {
53 my ($self, $col) = @_;
55 $self->throw_exception("$col is not a filtered column")
56 unless exists $self->column_info($col)->{_filter_info};
58 return $self->{_filtered_column}{$col}
59 if exists $self->{_filtered_column}{$col};
61 my $val = $self->get_column($col);
63 return $self->{_filtered_column}{$col} = $self->_filtered_column($col, $val);
66 sub set_filtered_column {
67 my ($self, $col, $filtered) = @_;
69 $self->set_column($col, $self->_unfiltered_column($col, $filtered));
71 delete $self->{_filtered_column}{$col};
77 my ($self, $column) = @_;
79 if (exists $self->{_filtered_column}{$column}) {
80 return $self->store_column($column,
81 $self->_unfiltered_column($column, $self->{_filtered_column}{$column}));
84 return $self->next::method($column);