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) = @_;
- $class->ensure_class_loaded($f_class);
-
unless (ref $cond) {
- my ($pri, $too_many) = $class->primary_columns;
- $class->throw_exception( "has_many can only infer join for a single ".
- "primary key; ${class} has more" )
- if $too_many;
+ $class->ensure_class_loaded($f_class);
+ my ($pri, $too_many) = eval { $class->_pri_cols };
+ $class->throw_exception(
+ "Can't infer join condition for ${rel} on ${class}: $@"
+ ) if $@;
+
+ $class->throw_exception(
+ "has_many can only infer join for a single primary key; ".
+ "${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) {
$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}" };
}