-package # hide from PAUSE
+package # hide from PAUSE
DBIx::Class::Relationship::HasMany;
use strict;
use warnings;
+use Try::Tiny;
+use namespace::clean;
+
+our %_pod_inherit_config =
+ (
+ class_map => { 'DBIx::Class::Relationship::HasMany' => 'DBIx::Class::Relationship' }
+ );
sub has_many {
my ($class, $rel, $f_class, $cond, $attrs) = @_;
-
- eval "require $f_class";
- if ($@) {
- $class->throw_exception($@) unless $@ =~ /Can't locate/;
- }
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) = try { $class->_pri_cols }
+ catch {
+ $class->throw_exception("Can't infer join condition for '$rel' on ${class}: $_");
+ };
+
+ $class->throw_exception(
+ "has_many can only infer join for a single primary key; ".
+ "${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) {
$guess = "using our class name '$class' as foreign key";
}
- my $f_class_loaded = eval { $f_class->columns };
- $class->throw_exception("No such column ${f_key} on foreign class ${f_class} ($guess)")
- if $f_class_loaded && !$f_class->has_column($f_key);
-
+ my $f_class_loaded = try { $f_class->columns };
+ $class->throw_exception(
+ "No such column '$f_key' on foreign class ${f_class} ($guess)"
+ ) if $f_class_loaded && !$f_class->has_column($f_key);
+
$cond = { "foreign.${f_key}" => "self.${pri}" };
}
- $class->add_relationship($rel, $f_class, $cond,
- { accessor => 'multi',
- join_type => 'LEFT',
- cascade_delete => 1,
- cascade_copy => 1,
- %{$attrs||{}} } );
+ my $default_cascade = ref $cond eq 'CODE' ? 0 : 1;
+
+ $class->add_relationship($rel, $f_class, $cond, {
+ accessor => 'multi',
+ join_type => 'LEFT',
+ cascade_delete => $default_cascade,
+ cascade_copy => $default_cascade,
+ %{$attrs||{}}
+ });
}
1;