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1 | package # hide from PAUSE |
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2 | DBIx::Class::Relationship::ManyToMany; |
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3 | |
4 | use strict; |
5 | use warnings; |
6 | |
7 | sub many_to_many { |
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8 | my ($class, $meth, $rel, $f_rel, $rel_attrs) = @_; |
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9 | { |
10 | no strict 'refs'; |
11 | no warnings 'redefine'; |
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12 | |
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13 | my $add_meth = "add_to_${meth}"; |
14 | my $remove_meth = "remove_from_${meth}"; |
15 | my $set_meth = "set_${meth}"; |
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16 | |
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17 | *{"${class}::${meth}"} = sub { |
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18 | my $self = shift; |
19 | my $attrs = @_ > 1 && ref $_[$#_] eq 'HASH' ? pop(@_) : {}; |
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20 | $self->search_related($rel)->search_related( |
21 | $f_rel, @_ > 0 ? @_ : undef, { %{$rel_attrs||{}}, %$attrs } |
22 | ); |
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23 | }; |
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24 | |
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25 | *{"${class}::${add_meth}"} = sub { |
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26 | my $self = shift; |
27 | @_ > 0 or $self->throw_exception( |
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28 | "${add_meth} needs an object or hashref" |
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29 | ); |
30 | my $source = $self->result_source; |
31 | my $schema = $source->schema; |
32 | my $rel_source_name = $source->relationship_info($rel)->{source}; |
33 | my $rel_source = $schema->resultset($rel_source_name)->result_source; |
34 | my $f_rel_source_name = $rel_source->relationship_info($f_rel)->{source}; |
35 | my $f_rel_rs = $schema->resultset($f_rel_source_name); |
36 | my $obj = ref $_[0] |
37 | ? ( ref $_[0] eq 'HASH' ? $f_rel_rs->create($_[0]) : $_[0] ) |
38 | : ( $f_rel_rs->create({@_}) ); |
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39 | my $link_vals = @_ > 1 && ref $_[$#_] eq 'HASH' ? pop(@_) : {}; |
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40 | my $link = $self->search_related($rel)->new_result({}); |
41 | $link->set_from_related($f_rel, $obj); |
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42 | $link->set_columns($link_vals); |
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43 | $link->insert(); |
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44 | }; |
45 | |
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46 | *{"${class}::${set_meth}"} = sub { |
47 | my $self = shift; |
48 | @_ > 0 or $self->throw_exception( |
49 | "{$set_meth} needs a list of objects or hashrefs" |
50 | ); |
51 | $self->search_related($rel, {})->delete; |
52 | $self->$add_meth(shift) while (defined $_[0]); |
53 | }; |
54 | |
55 | *{"${class}::${remove_meth}"} = sub { |
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56 | my $self = shift; |
57 | @_ > 0 && ref $_[0] ne 'HASH' |
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58 | or $self->throw_exception("${remove_meth} needs an object"); |
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59 | my $obj = shift; |
60 | my $rel_source = $self->search_related($rel)->result_source; |
61 | my $cond = $rel_source->relationship_info($f_rel)->{cond}; |
62 | my $link_cond = $rel_source->resolve_condition( |
63 | $cond, $obj, $f_rel |
64 | ); |
65 | $self->search_related($rel, $link_cond)->delete; |
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66 | }; |
67 | |
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68 | } |
69 | } |
70 | |
71 | 1; |