new action method "list_extra_info" for better debugging, and did this for the new...

[catagits/Catalyst-Runtime.git] / lib / Catalyst / DispatchType / Chained.pm

diff --git a/lib/Catalyst/DispatchType/Chained.pm b/lib/Catalyst/DispatchType/Chained.pm
index 95e0bcd..5f72fba 100644 (file)
--- a/lib/Catalyst/DispatchType/Chained.pm
+++ b/lib/Catalyst/DispatchType/Chained.pm
@@ -187,7 +187,6 @@ sub recurse_match {
     return () unless $children;
     my $best_action;
     my @captures;
-    my $found=0;
     TRY: foreach my $try_part (sort { length($b) <=> length($a) }
                                    keys %$children) {
                                # $b then $a to try longest part first
@@ -198,11 +197,11 @@ sub recurse_match {
                               splice( # and strip them off @parts as well
                                 @parts, 0, scalar(@{[split('/', $try_part)]})
                               ))); # @{[]} to avoid split to @_
-           $found=1;
         }
         my @try_actions = @{$children->{$try_part}};
         TRY_ACTION: foreach my $action (@try_actions) {
             if (my $capture_attr = $action->attributes->{CaptureArgs}) {
+                $capture_attr ||= 0;
 
                 # Short-circuit if not enough remaining parts
                 next TRY_ACTION unless @parts >= $capture_attr->[0];
@@ -213,8 +212,11 @@ sub recurse_match {
                 # strip CaptureArgs into list
                 push(@captures, splice(@parts, 0, $capture_attr->[0]));
 
+                # check if the action may fit, depending on a given test by the app
+                if ($action->can('match_captures')) { next TRY_ACTION unless $action->match_captures($c, \@captures) }
+
                 # try the remaining parts against children of this action
-                my ($actions, $captures, $action_parts, $found) = $self->recurse_match(
+                my ($actions, $captures, $action_parts, $n_pathparts) = $self->recurse_match(
                                              $c, '/'.$action->reverse, \@parts
                                            );
                 #    No best action currently
@@ -222,16 +224,17 @@ sub recurse_match {
                 # OR The action has equal parts but less captured data (ergo more defined)
                 if ($actions    &&
                     (!$best_action                                 ||
-                      $#$action_parts < $#{$best_action->{parts}}  ||
+                     $#$action_parts < $#{$best_action->{parts}}   ||
                      ($#$action_parts == $#{$best_action->{parts}} &&
-                      $#$captures < $#{$best_action->{captures}} && ($found > $best_action->{found})
-                    ))) {
+                      $#$captures < $#{$best_action->{captures}} &&
+                      $n_pathparts > $best_action->{n_pathparts}))) {
+                    my @pathparts = split /\//, $action->attributes->{PathPart}->[0];
                     $best_action = {
                         actions => [ $action, @$actions ],
                         captures=> [ @captures, @$captures ],
                         parts   => $action_parts,
-                        found=>$found
-                        };
+                        n_pathparts => scalar(@pathparts) + $n_pathparts,
+                    };
                 }
             }
             else {
@@ -240,7 +243,7 @@ sub recurse_match {
                     next TRY_ACTION unless $action->match($c);
                 }
                 my $args_attr = $action->attributes->{Args}->[0];
-
+                my @pathparts = split /\//, $action->attributes->{PathPart}->[0];
                 #    No best action currently
                 # OR This one matches with fewer parts left than the current best action,
                 #    And therefore is a better match
@@ -250,18 +253,18 @@ sub recurse_match {
 
                 if (!$best_action                       ||
                     @parts < @{$best_action->{parts}}   ||
-                    (!@parts && $args_attr eq 0)){
+                    (!@parts && defined($args_attr) && $args_attr eq "0")){
                     $best_action = {
                         actions => [ $action ],
                         captures=> [],
                         parts   => \@parts,
-                        found=>$found,
-                    }
+                        n_pathparts => scalar(@pathparts),
+                    };
                 }
             }
         }
     }
-    return @$best_action{qw/actions captures parts found/} if $best_action;
+    return @$best_action{qw/actions captures parts n_pathparts/} if $best_action;
     return ();
 }
 
@@ -358,7 +361,7 @@ sub uri_for_action {
     my $curr = $action;
     while ($curr) {
         if (my $cap = $curr->attributes->{CaptureArgs}) {
-            return undef unless @captures >= $cap->[0]; # not enough captures
+            return undef unless @captures >= ($cap->[0]||0); # not enough captures
             if ($cap->[0]) {
                 unshift(@parts, splice(@captures, -$cap->[0]));
             }
@@ -405,6 +408,7 @@ sub expand_action {
 }
 
 __PACKAGE__->meta->make_immutable;
+1;
 
 =head1 USAGE
 
@@ -674,6 +678,13 @@ The C<forward>ing to other actions does just what you would expect. But if
 you C<detach> out of a chain, the rest of the chain will not get called
 after the C<detach>.
 
+=head2 match_captures
+
+A method which can optionally be implemented by actions to
+stop chain matching.
+
+See L<Catalyst::Action> for further details.
+
 =head1 AUTHORS
 
 Catalyst Contributors, see Catalyst.pm