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1 | package # hide from PAUSE |
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2 | DBIx::Class::Relationship::Accessor; |
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3 | |
4 | use strict; |
5 | use warnings; |
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6 | use Sub::Name (); |
7 | use Class::Inspector (); |
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8 | |
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9 | sub register_relationship { |
10 | my ($class, $rel, $info) = @_; |
11 | if (my $acc_type = $info->{attrs}{accessor}) { |
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12 | $class->add_relationship_accessor($rel => $acc_type); |
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13 | } |
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14 | $class->next::method($rel => $info); |
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15 | } |
16 | |
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17 | sub add_relationship_accessor { |
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18 | my ($class, $rel, $acc_type) = @_; |
19 | my %meth; |
20 | if ($acc_type eq 'single') { |
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21 | my $rel_cond = $class->relationship_info($rel)->{cond}; |
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22 | $meth{$rel} = sub { |
23 | my $self = shift; |
24 | if (@_) { |
25 | $self->set_from_related($rel, @_); |
26 | return $self->{_relationship_data}{$rel} = $_[0]; |
27 | } elsif (exists $self->{_relationship_data}{$rel}) { |
28 | return $self->{_relationship_data}{$rel}; |
29 | } else { |
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30 | my $cond = $self->result_source->resolve_condition( |
31 | $rel_cond, $rel, $self |
32 | ); |
33 | return if grep { not defined } values %$cond; |
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34 | my $val = $self->find_related($rel, {}, {}); |
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35 | return unless $val; |
36 | return $self->{_relationship_data}{$rel} = $val; |
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37 | } |
38 | }; |
39 | } elsif ($acc_type eq 'filter') { |
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40 | $class->throw_exception("No such column $rel to filter") |
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41 | unless $class->has_column($rel); |
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42 | my $f_class = $class->relationship_info($rel)->{class}; |
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43 | $class->inflate_column($rel, |
44 | { inflate => sub { |
45 | my ($val, $self) = @_; |
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46 | return $self->find_or_new_related($rel, {}, {}); |
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47 | }, |
48 | deflate => sub { |
49 | my ($val, $self) = @_; |
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50 | $self->throw_exception("$val isn't a $f_class") unless $val->isa($f_class); |
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51 | return ($val->_ident_values)[0]; |
52 | # WARNING: probably breaks for multi-pri sometimes. FIXME |
53 | } |
54 | } |
55 | ); |
56 | } elsif ($acc_type eq 'multi') { |
57 | $meth{$rel} = sub { shift->search_related($rel, @_) }; |
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58 | $meth{"${rel}_rs"} = sub { shift->search_related_rs($rel, @_) }; |
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59 | $meth{"add_to_${rel}"} = sub { shift->create_related($rel, @_); }; |
60 | } else { |
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61 | $class->throw_exception("No such relationship accessor type $acc_type"); |
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62 | } |
63 | { |
64 | no strict 'refs'; |
65 | no warnings 'redefine'; |
66 | foreach my $meth (keys %meth) { |
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67 | my $name = join '::', $class, $meth; |
68 | *$name = Sub::Name::subname($name, $meth{$meth}); |
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69 | } |
70 | } |
71 | } |
72 | |
73 | 1; |