From: Peter Rabbitson <ribasushi@cpan.org>
Date: Sun, 9 Aug 2009 12:39:29 +0000 (+0000)
Subject: Fix an arcane case with pk==fk tables (use the relationship direction specification... 
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=c39b48e57a46afde462f73aa683f70dfb1ebe9bf;p=dbsrgits%2FDBIx-Class-Historic.git

Fix an arcane case with pk==fk tables (use the relationship direction specification if it is available
---

diff --git a/lib/DBIx/Class/ResultSource.pm b/lib/DBIx/Class/ResultSource.pm
index f50cffd..c05f578 100644
--- a/lib/DBIx/Class/ResultSource.pm
+++ b/lib/DBIx/Class/ResultSource.pm
@@ -1258,18 +1258,22 @@ sub pk_depends_on {
 # hashref of columns of the related object.
 sub _pk_depends_on {
   my ($self, $relname, $rel_data) = @_;
-  my $cond = $self->relationship_info($relname)->{cond};
 
+  my $relinfo = $self->relationship_info($relname);
+
+  # don't assume things if the relationship direction is specified
+  return $relinfo->{attrs}{is_foreign_key_constraint}
+    if exists ($relinfo->{attrs}{is_foreign_key_constraint});
+
+  my $cond = $relinfo->{cond};
   return 0 unless ref($cond) eq 'HASH';
 
   # map { foreign.foo => 'self.bar' } to { bar => 'foo' }
-
   my $keyhash = { map { my $x = $_; $x =~ s/.*\.//; $x; } reverse %$cond };
 
   # assume anything that references our PK probably is dependent on us
   # rather than vice versa, unless the far side is (a) defined or (b)
   # auto-increment
-
   my $rel_source = $self->related_source($relname);
 
   foreach my $p ($self->primary_columns) {