X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FCatalyst.pm;h=c7b8bceb5c5ac3e605f37804fa6312809cdf9449;hb=fd5fb3a83e89bd8d5872be6e8cff921a3bb02e78;hp=aa9892699c15f98742ec1064144aea95734f9809;hpb=3efd4eb3c8b9b735b4671fcf6f0bced1f6e81a85;p=catagits%2FCatalyst-Runtime.git

diff --git a/lib/Catalyst.pm b/lib/Catalyst.pm
index aa98926..c7b8bce 100644
--- a/lib/Catalyst.pm
+++ b/lib/Catalyst.pm
@@ -65,6 +65,8 @@ sub _build_request_constructor_args {
     my %p = ( _log => $self->log );
     $p{_uploadtmp} = $self->_uploadtmp if $self->_has_uploadtmp;
     $p{data_handlers} = {$self->registered_data_handlers};
+    $p{_use_hash_multivalue} = $self->config->{use_hash_multivalue_in_request}
+      if $self->config->{use_hash_multivalue_in_request};
     \%p;
 }
 
@@ -118,7 +120,7 @@ __PACKAGE__->stats_class('Catalyst::Stats');
 
 # Remember to update this in Catalyst::Runtime as well!
 
-our $VERSION = '5.90049_003';
+our $VERSION = '5.90049_004';
 
 sub import {
     my ( $class, @arguments ) = @_;
@@ -3397,6 +3399,26 @@ In the future this might become the default behavior.
 
 =item *
 
+C<use_hash_multivalue_in_request>
+
+In L<Catalyst::Request> the methods C<query_parameters>, C<body_parametes>
+and C<parameters> return a hashref where values might be scalar or an arrayref
+depending on the incoming data.  In many cases this can be undesirable as it
+leads one to writing defensive code like the following:
+
+    my ($val) = ref($c->req->parameters->{a}) ?
+      @{$c->req->parameters->{a}} :
+        $c->req->parameters->{a};
+
+Setting this configuration item to true will make L<Catalyst> populate the
+attributes underlying these methods with an instance of L<Hash::MultiValue>
+which is used by L<Plack::Request> and others to solve this very issue.  You
+may prefer this behavior to the default, if so enable this option (be warned
+if you enable it in a legacy application we are not sure if it is completely
+backwardly compatible).
+
+=item *
+
 C<psgi_middleware> - See L<PSGI MIDDLEWARE>.
 
 =item *