lib/DX/ActionBuilder/BoundValue.pm

   1 package DX::ActionBuilder::BoundValue;
   2
   3 use DX::Action::SetBoundValue;
   4 use DX::Action::AddBoundValue;
   5 use DX::Class;
   6
   7 with 'DX::Role::ActionBuilder';
   8
   9 has target_path => (is => 'ro', required => 1);
  10
  11 has rebind_path => (is => 'ro', required => 1);
  12
  13 has bound_to_path => (is => 'ro', required => 1);
  14
  15 has inner_action_builder => (is => 'ro', required => 1);
  16
  17 sub can_set_value { shift->inner_action_builder->can_set_value }
  18
  19 sub action_for_set_value {
  20   my ($self, $value) = @_;
  21   my $inner_action = $self->inner_action_builder->action_for_set_value($value);
  22   return undef unless $inner_action;
  23   DX::Action::SetBoundValue->new(
  24     target_path => $self->target_path,
  25     bound_to_path => $self->bound_to_path,
  26     rebind_path => $self->rebind_path,
  27     new_value => $value,
  28     inner_action => $inner_action,
  29   )
  30 }
  31
  32 sub action_for_add_member {
  33   my ($self, $at, $value) = @_;
  34   $at = $at->string_value if ref($at);
  35   my $inner_action = $self->inner_action_builder
  36                           ->action_for_add_member($at, $value);
  37   return undef unless $inner_action;
  38   DX::Action::AddBoundValue->new(
  39     target_path => [ @{$self->target_path}, $at ],
  40     bound_to_path => [ @{$self->bound_to_path}, $at ],
  41     rebind_path => $self->rebind_path,
  42     new_value => $value,
  43     inner_action => $inner_action
  44   );
  45 }
  46
  47 sub apply_to_value {
  48   my ($self, $value, $inner_value) = @_;
  49   my $new_value = $value->but_set_action_builder($self);
  50   return $new_value unless $new_value->isa('DX::Value::Dict');
  51   my %m = %{$new_value->members};
  52   return $new_value->but(
  53     members => {
  54       map {
  55         my $this_inner = $inner_value->get_member_at($_);
  56         ($_ => $self->but(
  57                  target_path => [ @{$self->target_path}, $_ ],
  58                  bound_to_path => [ @{$self->bound_to_path}, $_ ],
  59                  inner_action_builder => $this_inner->action_builder,
  60                )->apply_to_value($m{$_}, $this_inner))
  61       } keys %m
  62     },
  63   );
  64 }
  65
  66 1;