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package Reaction::UI::ViewPort::Collection::Role::Order;
use Reaction::Role;
use namespace::clean -except => [ qw(meta) ];
has enable_order_by => (is => 'rw', isa => 'ArrayRef');
has coerce_order_by => (isa => 'HashRef', is => 'rw');
has order_by => (
isa => 'Str',
is => 'rw',
trigger_adopt('order_by'),
clearer => 'clear_order_by'
);
has order_by_desc => (
isa => 'Int',
is => 'rw',
trigger_adopt('order_by'),
lazy_build => 1
);
sub _build_order_by_desc { 0 }
sub adopt_order_by {
shift->clear_current_collection;
}
sub can_order_by {
my ($self,$order_by) = @_;
return 1 unless $self->has_enable_order_by;
return scalar grep { $order_by eq $_ } @{ $self->enable_order_by };
}
sub _order_search_attrs {
my $self = shift;
my %attrs;
if ($self->has_order_by) {
my $order_by = $self->order_by;
if( $self->has_coerce_order_by ){
$order_by = $self->coerce_order_by->{$order_by}
if exists $self->coerce_order_by->{$order_by};
}
my $key = $self->order_by_desc ? '-desc' : '-asc';
$attrs{order_by} = { $key => $order_by };
}
return \%attrs;
}
after clear_order_by => sub {
my ($self) = @_;
$self->order_by_desc(0);
$self->clear_current_collection;
};
around _build_current_collection => sub {
my $orig = shift;
my ($self) = @_;
my $collection = $orig->(@_);
return $collection->where(undef, $self->_order_search_attrs);
};
around accept_events => sub { ('order_by', 'order_by_desc', shift->(@_)); };
1;
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