package Bookmarks::M::DB::Tags;

use strict;

__PACKAGE__->has_many( links => ['Bookmarks::M::DB::LinksTags' => 'link'] );

__PACKAGE__->set_sql('related_tags', <<'END_SQL');
SELECT DISTINCT tags.pk
  FROM tags, links_tags lt1, links_tags lt2
 WHERE tags.pk  = lt1.tag
   AND lt1.link = lt2.link
   AND lt2.tag  = ?
   AND lt1.tag != lt2.tag
END_SQL

__PACKAGE__->set_sql('popularity', <<'END_SQL');
SELECT tags.pk, COUNT(links_tags.link) AS how_many
  FROM tags, links_tags
 WHERE tags.pk = links_tags.tag
GROUP BY links_tags.tag
ORDER BY how_many DESC
END_SQL

__PACKAGE__->columns(TEMP=> 'how_wany');

sub count_links {
    my ($self)=@_;
    return scalar $self->links();
}

sub related_tags {
    my ($self)=@_;

    return $self->search_related_tags($self->pk());
}

sub get_all_tags_by_popularity {
    return $_[0]->search_popularity();
}

sub ordered_links {
    my ($self)=@_;
    my @links=$self->links();
    return sort {
        ($b->access_count || 0)
            <=>
        ($a->access_count || 0)
    } @links;
}

=head1 NAME

Bookmarks::M::DB::Tags - CDBI Model Component Table Class

=head1 SYNOPSIS

    Very simple to use

=head1 DESCRIPTION

Very nice component.

=head1 AUTHOR

Clever guy

=head1 LICENSE

This library is free software . You can redistribute it and/or modify it under
the same terms as perl itself.

=cut

1;