Introduce GOVERNANCE document and empty RESOLUTIONS file.

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / Relationship / CascadeActions.pm

diff --git a/lib/DBIx/Class/Relationship/CascadeActions.pm b/lib/DBIx/Class/Relationship/CascadeActions.pm
index e1d1341..6fcfbe6 100644 (file)
--- a/lib/DBIx/Class/Relationship/CascadeActions.pm
+++ b/lib/DBIx/Class/Relationship/CascadeActions.pm
@@ -1,4 +1,16 @@
-package DBIx::Class::Relationship::CascadeActions;
+package # hide from PAUSE
+    DBIx::Class::Relationship::CascadeActions;
+
+use strict;
+use warnings;
+use DBIx::Class::Carp;
+use DBIx::Class::_Util 'dbic_internal_try';
+use namespace::clean;
+
+our %_pod_inherit_config =
+  (
+   class_map => { 'DBIx::Class::Relationship::CascadeActions' => 'DBIx::Class::Relationship' }
+  );
 
 sub delete {
   my ($self, @rest) = @_;
@@ -7,14 +19,29 @@ sub delete {
     # be handling this anyway. Assuming we have joins we probably actually
     # *could* do them, but I'd rather not.
 
-  my $ret = $self->next::method(@rest);
-
-  my %rels = map { $_ => $self->relationship_info($_) } $self->relationships;
+  my $source = $self->result_source;
+  my %rels = map { $_ => $source->relationship_info($_) } $source->relationships;
   my @cascade = grep { $rels{$_}{attrs}{cascade_delete} } keys %rels;
-  foreach my $rel (@cascade) {
-    $self->search_related($rel)->delete;
+
+  if (@cascade) {
+    my $guard = $source->schema->txn_scope_guard;
+
+    my $ret = $self->next::method(@rest);
+
+    foreach my $rel (@cascade) {
+      if( my $rel_rs = dbic_internal_try { $self->related_resultset($rel) } ) {
+        $rel_rs->delete_all;
+      } else {
+        carp "Skipping cascade delete on relationship '$rel' - related resultsource '$rels{$rel}{class}' is not registered with this schema";
+        next;
+      }
+    }
+
+    $guard->commit;
+    return $ret;
   }
-  return $ret;
+
+  $self->next::method(@rest);
 }
 
 sub update {
@@ -22,14 +49,31 @@ sub update {
   return $self->next::method(@rest) unless ref $self;
     # Because update cascades on a class *really* don't make sense!
 
-  my $ret = $self->next::method(@rest);
-
-  my %rels = map { $_ => $self->relationship_info($_) } $self->relationships;
+  my $source = $self->result_source;
+  my %rels = map { $_ => $source->relationship_info($_) } $source->relationships;
   my @cascade = grep { $rels{$_}{attrs}{cascade_update} } keys %rels;
-  foreach my $rel (@cascade) {
-    $_->update for $self->$rel;
+
+  if (@cascade) {
+    my $guard = $source->schema->txn_scope_guard;
+
+    my $ret = $self->next::method(@rest);
+
+    foreach my $rel (@cascade) {
+      next if (
+        $rels{$rel}{attrs}{accessor}
+          &&
+        $rels{$rel}{attrs}{accessor} eq 'single'
+          &&
+        !exists($self->{_relationship_data}{$rel})
+      );
+      $_->update for grep defined, $self->$rel;
+    }
+
+    $guard->commit;
+    return $ret;
   }
-  return $ret;
+
+  $self->next::method(@rest);
 }
 
 1;