foo

[gitmo/MooseX-AttributeHelpers.git] / lib / MooseX / AttributeHelpers / Collection / Hash.pm

diff --git a/lib/MooseX/AttributeHelpers/Collection/Hash.pm b/lib/MooseX/AttributeHelpers/Collection/Hash.pm
index fa52a76..566972c 100644 (file)
--- a/lib/MooseX/AttributeHelpers/Collection/Hash.pm
+++ b/lib/MooseX/AttributeHelpers/Collection/Hash.pm
@@ -1,9 +1,70 @@
 
 package MooseX::AttributeHelpers::Collection::Hash;
+use Moose;
 
 our $VERSION   = '0.01';
 our $AUTHORITY = 'cpan:STEVAN';
 
+extends 'MooseX::AttributeHelpers::Collection';
+
+sub helper_type { 'HashRef' }
+
+has '+method_constructors' => (
+    default => sub {
+        return +{
+            'exists' => sub {
+                my $attr = shift;
+                return sub { exists $attr->get_value($_[0])->{$_[1]} ? 1 : 0 };
+            },            
+            'get' => sub {
+                my $attr = shift;
+                return sub { $attr->get_value($_[0])->{$_[1]} };
+            },    
+            'set' => sub {
+                my $attr = shift;
+                if ($attr->has_container_type) {
+                    my $container_type_constraint = $attr->container_type_constraint;
+                    return sub { 
+                        ($container_type_constraint->check($_[2])) 
+                            || confess "Value " . ($_[2]||'undef') . " did not pass container type constraint";                        
+                        $attr->get_value($_[0])->{$_[1]} = $_[2] 
+                    };
+                }
+                else {
+                    return sub { $attr->get_value($_[0])->{$_[1]} = $_[2] };
+                }
+            },    
+            'keys' => sub {
+                my $attr = shift;
+                return sub { keys %{$attr->get_value($_[0])} };        
+            },            
+            'values' => sub {
+                my $attr = shift;
+                return sub { values %{$attr->get_value($_[0])} };        
+            },            
+            'count' => sub {
+                my $attr = shift;
+                return sub { scalar keys %{$attr->get_value($_[0])} };        
+            },
+            'empty' => sub {
+                my $attr = shift;
+                return sub { scalar keys %{$attr->get_value($_[0])} ? 1 : 0 };        
+            },
+            'delete' => sub {
+                my $attr = shift;
+                return sub { delete $attr->get_value($_[0])->{$_[1]} };
+            }
+        }
+    }
+);
+
+no Moose;
+
+# register the alias ...
+package Moose::Meta::Attribute::Custom::Collection::Hash;
+sub register_implementation { 'MooseX::AttributeHelpers::Collection::Hash' }
+
+
 1;
 
 __END__