X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FRelationship%2FHasMany.pm;h=d74a9a4abcee236911b45e0ce4c489b78e1301ce;hb=9f0c231fcab6598822d36c8de64ed7a19f0d6b5c;hp=2c9a3bb723178eb60f7afc1ec92a08ec5cc24177;hpb=fd4df97578076cdb1a82385b21995ed28637e096;p=dbsrgits%2FDBIx-Class.git

diff --git a/lib/DBIx/Class/Relationship/HasMany.pm b/lib/DBIx/Class/Relationship/HasMany.pm
index 2c9a3bb..d74a9a4 100644
--- a/lib/DBIx/Class/Relationship/HasMany.pm
+++ b/lib/DBIx/Class/Relationship/HasMany.pm
@@ -4,6 +4,11 @@ package # hide from PAUSE
 use strict;
 use warnings;
 
+our %_pod_inherit_config = 
+  (
+   class_map => { 'DBIx::Class::Relationship::HasMany' => 'DBIx::Class::Relationship' }
+  );
+
 sub has_many {
   my ($class, $rel, $f_class, $cond, $attrs) = @_;
 
@@ -16,6 +21,11 @@ sub has_many {
       "${class} has more"
     ) if $too_many;
 
+    $class->throw_exception(
+      "has_many needs a primary key to infer a join; ".
+      "${class} has none"
+    ) if !defined $pri && (!defined $cond || !length $cond);
+
     my ($f_key,$guess);
     if (defined $cond && length $cond) {
       $f_key = $cond;
@@ -30,7 +40,7 @@ sub has_many {
     $class->throw_exception(
       "No such column ${f_key} on foreign class ${f_class} ($guess)"
     ) if $f_class_loaded && !$f_class->has_column($f_key);
-      
+
     $cond = { "foreign.${f_key}" => "self.${pri}" };
   }