1 files changed, 28 insertions, 1 deletions
diff --git a/usr/src/libpiny/lib/Piny/User.pm b/usr/src/libpiny/lib/Piny/User.pm
index 53e310b..e4b865c 100644
--- a/usr/src/libpiny/lib/Piny/User.pm
+++ b/usr/src/libpiny/lib/Piny/User.pm
@@ -4,10 +4,19 @@
 package Piny::User;
 
 use Moose;
+use Moose::Util::TypeConstraints;
 
 use Piny::Email;
 use Piny::Group;
 
+# Types
+
+subtype 'Username'
+  => as 'Str'
+  => where { $_ =~ /^(?!(git|ikiwiki)-)[[a-zA-Z0-9][a-zA-Z0-9_.-]*$/ }
+  => message { 'That username is not in the correct format for a piny user.' }
+  ;
+
 # Attributes
 
 has 'uid' =>
@@ -18,7 +27,7 @@ has 'uid' =>
 
 has 'username' =>
   ( is          => 'ro'
-  , isa         => 'Str'
+  , isa         => 'Username'
   , lazy_build  => 1
   );
 
@@ -50,6 +59,24 @@ has 'groups' =>
   , init_arg    => undef
   );
 
+# Public methods
+
+sub add_group {
+  my ( $s, @groups ) = @_;
+
+  foreach my $group ( @groups ) {
+    $group->add_member( $s );
+  };
+};
+
+sub remove_group {
+  my ( $s, @groups ) = @_;
+
+  foreach my $group ( @groups ) {
+    $group->remove_member( $s );
+  };
+};
+
 # Builder methods
 
 # If constructed with just one argument, then