Add a self-explanatory *compile-time* $ENV{DBIC_SHUFFLE_UNORDERED_RESULTSETS}

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Storage / DBI / Cursor.pm

diff --git a/lib/DBIx/Class/Storage/DBI/Cursor.pm b/lib/DBIx/Class/Storage/DBI/Cursor.pm
index 6681d23..4d15401 100644 (file)
--- a/lib/DBIx/Class/Storage/DBI/Cursor.pm
+++ b/lib/DBIx/Class/Storage/DBI/Cursor.pm
@@ -3,10 +3,11 @@ package DBIx::Class::Storage::DBI::Cursor;
 use strict;
 use warnings;
 
-use base qw/DBIx::Class::Cursor/;
+use base 'DBIx::Class::Cursor';
 
 use Try::Tiny;
-use Scalar::Util qw/refaddr weaken/;
+use Scalar::Util qw(refaddr weaken);
+use List::Util 'shuffle';
 use namespace::clean;
 
 __PACKAGE__->mk_group_accessors('simple' =>
@@ -177,7 +178,14 @@ sub all {
 
   (undef, $sth) = $self->storage->_select( @{$self->{args}} );
 
-  return @{$sth->fetchall_arrayref};
+  return (
+    DBIx::Class::_ENV_::SHUFFLE_UNORDERED_RESULTSETS
+      and
+    ! $self->{attrs}{order_by}
+  )
+    ? shuffle @{$sth->fetchall_arrayref}
+    : @{$sth->fetchall_arrayref}
+  ;
 }
 
 sub sth {