Commit | Line | Data |
b8e1e21f |
1 | package DBIx::Class::CDBICompat::HasMany; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
6 | sub has_many { |
7 | my ($class, $rel, $f_class, $f_key, $args) = @_; |
8 | #die "No such column ${col}" unless $class->_columns->{$col}; |
9 | eval "require $f_class"; |
10 | my ($pri, $too_many) = keys %{ $class->_primaries }; |
11 | die "has_many only works with a single primary key; ${class} has more" |
12 | if $too_many; |
13 | if (ref $f_key eq 'HASH') { $args = $f_key; undef $f_key; }; |
14 | unless ($f_key) { |
15 | ($f_key) = grep { $f_class && $_->{class} eq $class } |
16 | $f_class->_relationships; |
17 | } |
18 | die "Unable to resolve foreign key for has_many from ${class} to ${f_class}" |
19 | unless $f_key; |
20 | die "No such column ${f_key} on foreign class ${f_class}" |
21 | unless $f_class->_columns->{$f_key}; |
22 | $class->add_relationship($rel, $f_class, |
23 | { "foreign.${f_key}" => "self.${pri}" }, |
24 | { _type => 'has_many', %{$args || {}} } ); |
25 | { |
26 | no strict 'refs'; |
27 | *{"${class}::${rel}"} = sub { shift->search_related($rel, @_); }; |
28 | *{"${class}::add_to_${rel}"} = sub { shift->create_related($rel, @_); }; |
29 | } |
30 | return 1; |
31 | } |
32 | |
33 | sub delete { |
34 | my ($self, @rest) = @_; |
35 | return $self->NEXT::ACTUAL::delete(@rest) unless ref $self; |
36 | # I'm just ignoring this for class deletes because hell, the db should |
37 | # be handling this anyway. Assuming we have joins we probably actually |
38 | # *could* do them, but I'd rather not. |
39 | |
40 | my $ret = $self->NEXT::ACTUAL::delete(@rest); |
41 | |
42 | my %rels = %{ $self->_relationships }; |
43 | my @hm = grep { $rels{$_}{attrs}{_type} |
44 | && $rels{$_}{attrs}{_type} eq 'has_many' } keys %rels; |
45 | foreach my $has_many (@hm) { |
46 | $_->delete for $self->search_related($has_many); |
47 | } |
48 | return $ret; |
49 | } |
50 | 1; |