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1 | package # hide from PAUSE |
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2 | DBIx::Class::Relationship::HasMany; |
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3 | |
4 | use strict; |
5 | use warnings; |
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6 | use Try::Tiny; |
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7 | use namespace::clean; |
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8 | |
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9 | our %_pod_inherit_config = |
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10 | ( |
11 | class_map => { 'DBIx::Class::Relationship::HasMany' => 'DBIx::Class::Relationship' } |
12 | ); |
13 | |
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14 | sub has_many { |
15 | my ($class, $rel, $f_class, $cond, $attrs) = @_; |
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16 | |
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17 | unless (ref $cond) { |
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18 | $class->ensure_class_loaded($f_class); |
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19 | |
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20 | my $pri = $class->result_source_instance->_single_pri_col_or_die; |
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21 | |
22 | my ($f_key,$guess); |
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23 | if (defined $cond && length $cond) { |
24 | $f_key = $cond; |
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25 | $guess = "caller specified foreign key '$f_key'"; |
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26 | } else { |
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27 | $class =~ /([^\:]+)$/; # match is safe - $class can't be '' |
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28 | $f_key = lc $1; # go ahead and guess; best we can do |
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29 | $guess = "using our class name '$class' as foreign key source"; |
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30 | } |
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31 | |
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32 | my $f_class_loaded = try { $f_class->columns }; |
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33 | $class->throw_exception( |
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34 | "No such column '$f_key' on foreign class ${f_class} ($guess)" |
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35 | ) if $f_class_loaded && !$f_class->has_column($f_key); |
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36 | |
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37 | $cond = { "foreign.${f_key}" => "self.${pri}" }; |
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38 | } |
39 | |
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40 | my $default_cascade = ref $cond eq 'CODE' ? 0 : 1; |
41 | |
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42 | $class->add_relationship($rel, $f_class, $cond, { |
43 | accessor => 'multi', |
44 | join_type => 'LEFT', |
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45 | cascade_delete => $default_cascade, |
46 | cascade_copy => $default_cascade, |
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47 | %{$attrs||{}} |
48 | }); |
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49 | } |
50 | |
51 | 1; |