X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FResultSource.pm;h=a0263397cfd5c53e90c6b46677380b93a40a9a86;hb=249963d4c07b676fdd1c186361bebfe4e0186882;hp=b723517caa07f150bffb605b261f3e72c83a36b5;hpb=838ef78d24f66da1c2d45a88495fe40bfe8ee522;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/ResultSource.pm b/lib/DBIx/Class/ResultSource.pm
index b723517..a026339 100644
--- a/lib/DBIx/Class/ResultSource.pm
+++ b/lib/DBIx/Class/ResultSource.pm
@@ -905,6 +905,16 @@ sub resolve_prefetch {
       $self->throw_exception(
         "Can't prefetch has_many ${pre} (join cond too complex)")
         unless ref($rel_info->{cond}) eq 'HASH';
+      my $dots = @{[$as_prefix =~ m/\./g]} + 1; # +1 to match the ".${as_prefix}"
+      if (my ($fail) = grep { @{[$_ =~ m/\./g]} == $dots }
+                         keys %{$collapse}) {
+        my ($last) = ($fail =~ /([^\.]+)$/);
+        $self->throw_exception(
+          "Can't prefetch multiple has_many rels ${last} and ${pre}"
+          .(length($as_prefix) ? "at the same level (${as_prefix})"
+                               : "at top level"
+        ));
+      }
       #my @col = map { (/^self\.(.+)$/ ? ("${as_prefix}.$1") : ()); }
       #              values %{$rel_info->{cond}};
       $collapse->{".${as_prefix}${pre}"} = [ $rel_source->primary_columns ];