X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2F_Util.pm;h=29b196dce4283da9a5a474557ddebe36cb9922c3;hb=e5c6382908ee65577e53c0771629384d70959a3d;hp=08f3b6901a9df9f0d630de93d2ade8782d4ae215;hpb=a3ae79ed1009ae4679909f4ec7dc0327c1adaae8;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/_Util.pm b/lib/DBIx/Class/_Util.pm
index 08f3b69..29b196d 100644
--- a/lib/DBIx/Class/_Util.pm
+++ b/lib/DBIx/Class/_Util.pm
@@ -204,7 +204,7 @@ our @EXPORT_OK = qw(
   scope_guard detected_reinvoked_destructor emit_loud_diag
   true false
   is_exception dbic_internal_try dbic_internal_catch visit_namespaces
-  quote_sub qsub perlstring serialize deep_clone dump_value uniq
+  quote_sub qsub perlstring serialize deep_clone dump_value uniq bag_eq
   parent_dir mkdir_p
   UNRESOLVABLE_CONDITION DUMMY_ALIASPAIR
 );
@@ -387,6 +387,34 @@ sub uniq {
   ) } @_;
 }
 
+sub bag_eq ($$) {
+  croak "bag_eq() requiress two arrayrefs as arguments" if (
+    ref($_[0]) ne 'ARRAY'
+      or
+    ref($_[1]) ne 'ARRAY'
+  );
+
+  return '' unless @{$_[0]} == @{$_[1]};
+
+  my( %seen, $numeric_preserving_copy );
+
+  ( defined $_
+    ? $seen{'value' . ( $numeric_preserving_copy = $_ )}++
+    : $seen{'undef'}++
+  ) for @{$_[0]};
+
+  ( defined $_
+    ? $seen{'value' . ( $numeric_preserving_copy = $_ )}--
+    : $seen{'undef'}--
+  ) for @{$_[1]};
+
+  return (
+    (grep { $_ } values %seen)
+      ? ''
+      : 1
+  );
+}
+
 my $dd_obj;
 sub dump_value ($) {
   local $Data::Dumper::Indent = 1