CGI::Ex 2.08

[chaz/p5-CGI-Ex] / lib / CGI / Ex / App.pm

diff --git a/lib/CGI/Ex/App.pm b/lib/CGI/Ex/App.pm
index 4a62f920b390b9228abc345090b23c1429e0415b..296285893b1e55f18783cfc7c24a5d9504215cf6 100644 (file)
--- a/lib/CGI/Ex/App.pm
+++ b/lib/CGI/Ex/App.pm
@@ -2,7 +2,7 @@ package CGI::Ex::App;
 
 ###----------------------------------------------------------------###
 #  See the perldoc in CGI/Ex/App.pod
-#  Copyright 2006 - Paul Seamons                                     #
+#  Copyright 2007 - Paul Seamons                                     #
 #  Distributed under the Perl Artistic License without warranty      #
 ###----------------------------------------------------------------###
 
@@ -10,9 +10,10 @@ use strict;
 use vars qw($VERSION);
 
 BEGIN {
-    $VERSION = '2.05';
+    $VERSION = '2.08';
 
     Time::HiRes->import('time') if eval {require Time::HiRes};
+    eval {require Scalar::Util};
 }
 
 sub croak {
@@ -121,6 +122,19 @@ sub nav_loop {
         ### allow for becoming another package (allows for some steps in external files)
         $self->morph($step);
 
+        ### allow for mapping path_info pieces to form elements
+        if (my $info = $ENV{'PATH_INFO'}) {
+            my $maps = $self->run_hook('path_info_map', $step) || [];
+            croak 'Usage: sub path_info_map { [[qr{/path_info/(\w+)}, "keyname"]] }'
+                if ! UNIVERSAL::isa($maps, 'ARRAY') || (@$maps && ! UNIVERSAL::isa($maps->[0], 'ARRAY'));
+            foreach my $map (@$maps) {
+                my @match = $info =~ $map->[0];
+                next if ! @match;
+                $self->form->{$map->[$_]} = $match[$_ - 1] foreach grep {! defined $self->form->{$map->[$_]}} 1 .. $#$map;
+                last;
+            }
+        }
+
         ### run the guts of the step
         my $handled = $self->run_hook('run_step', $step);
 
@@ -181,10 +195,21 @@ sub path {
     if (! $self->{'path'}) {
         my $path = $self->{'path'} = []; # empty path
 
-        my $step = $self->form->{ $self->step_key };
-        $step = lc($1) if ! $step && $ENV{'PATH_INFO'} && $ENV{'PATH_INFO'} =~ m|^/(\w+)|;
+        ### add initial items to the form hash from path_info
+        if (my $info = $ENV{'PATH_INFO'}) {
+            my $maps = $self->path_info_map_base || [];
+            croak 'Usage: sub path_info_map_base { [[qr{/path_info/(\w+)}, "keyname"]] }'
+                if ! UNIVERSAL::isa($maps, 'ARRAY') || (@$maps && ! UNIVERSAL::isa($maps->[0], 'ARRAY'));
+            foreach my $map (@$maps) {
+                my @match = $info =~ $map->[0];
+                next if ! @match;
+                $self->form->{$map->[$_]} = $match[$_ - 1] foreach grep {! defined $self->form->{$map->[$_]}} 1 .. $#$map;
+                last;
+            }
+        }
 
         ### make sure the step is valid
+        my $step = $self->form->{$self->step_key};
         if (defined $step) {
             if ($step =~ /^_/) {         # can't begin with _
                 $self->stash->{'forbidden_step'} = $step;
@@ -204,6 +229,11 @@ sub path {
     return $self->{'path'};
 }
 
+sub path_info_map_base {
+    my $self = shift;
+    return [[qr{/(\w+)}, $self->step_key]];
+}
+
 sub set_path {
     my $self = shift;
     my $path = $self->{'path'} ||= [];
@@ -673,9 +703,34 @@ sub stash {
     return $self->{'stash'} ||= {};
 }
 
+sub clear_app {
+    my $self = shift;
+
+    delete @{ $self }{qw(
+        cgix
+        vob
+        form
+        cookies
+        stash
+        path
+        path_i
+        history
+        __morph_lineage_start_index
+        __morph_lineage
+        hash_errors
+        hash_fill
+        hash_swap
+        hash_common
+    )};
+
+    return $self;
+}
+
 ###----------------------------------------------------------------###
 ### default hook implementations
 
+sub path_info_map { }
+
 sub run_step {
     my $self = shift;
     my $step = shift;
@@ -767,7 +822,9 @@ sub swap_template {
     my ($self, $step, $file, $swap) = @_;
 
     my $args = $self->run_hook('template_args', $step);
-    $args->{'INCLUDE_PATH'} ||= sub { $self->base_dir_abs || die "Could not find base_dir_abs while looking for template INCLUDE_PATH on step \"$step\"" };
+    my $copy = $self;
+    eval {require Scalar::Util; Scalar::Util::weaken($copy)};
+    $args->{'INCLUDE_PATH'} ||= sub { $copy->base_dir_abs || die "Could not find base_dir_abs while looking for template INCLUDE_PATH on step \"$step\"" };
 
     require CGI::Ex::Template;
     my $t = CGI::Ex::Template->new($args);
@@ -799,7 +856,7 @@ sub pre_step   { 0 } # success indicates we handled step (don't continue step or
 sub skip       { 0 } # success indicates to skip the step (and continue loop)
 sub prepare    { 1 } # failure means show step
 sub finalize   { 1 } # failure means show step
-sub post_print { 0 } # success indicates we handled step (don't continue loop)
+sub post_print { 0 }
 sub post_step  { 0 } # success indicates we handled step (don't continue step or loop)
 
 sub name_step {
@@ -951,14 +1008,8 @@ sub hash_base {
 
     return $self->{'hash_base'} ||= do {
         ### create a weak copy of self to use in closures
-        my $copy;
-        if (eval {require Scalar::Util} && defined &Scalar::Util::weaken) {
-            $copy = $self;
-            Scalar::Util::weaken($copy);
-        } else {
-            $copy = bless {%$self}, ref($self); # hackish way to avoid circular refs on older perls (pre 5.8)
-        }
-
+        my $copy = $self;
+        eval {require Scalar::Util; Scalar::Util::weaken($copy)};
         my $hash = {
             script_name     => $ENV{'SCRIPT_NAME'} || $0,
             path_info       => $ENV{'PATH_INFO'}   || '',