package WebCoso::Collections;
use strict;
use warnings;
use Class::Std;
use List::MoreUtils 'any';
{
my %collections_of :ATTR( :get<collections_ref> );
sub BUILD {
my ($self,$ident,$args_ref)=@_;
$collections_of{$ident} = [];
}
sub add_collection {
my ($self, $collection)=@_;
return if any { $_ eq $collection } $self->get_all_collections();
push @{ $self->get_collections_ref() }, $collection;
}
sub get_all_collections {
my ($self)=@_;
return @{ $self->get_collections_ref() };
}
sub get_root_collections {
my ($self)=@_;
return grep {
$_->get_parents() == 0
} $self->get_all_collections();
}
sub get_leaf_collections {
my ($self)=@_;
return grep {
$_->get_children() == 0
} $self->get_all_collections();
}
sub get_axes {
return 'language';
}
sub get_axis_values {
my ($self,$axis_name)=@_;
if ($axis_name eq 'language') {
return $self->_get_languages();
}
else {
return;
}
}
sub _get_languages {
my ($self)=@_;
my %langs=();
for my $collection ($self->get_all_collections()) {
@langs{ $collection->get_axis_values('language') } = ();
}
delete $langs{''};
return keys %langs;
}
}
1;
