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1 | package DBIx::Class::CDBICompat::ColumnGroups; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | |
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6 | use base qw/DBIx::Class::Row/; |
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7 | |
8 | __PACKAGE__->mk_classdata('_column_groups' => { }); |
9 | |
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10 | sub columns { |
11 | my $proto = shift; |
12 | my $class = ref $proto || $proto; |
13 | my $group = shift || "All"; |
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14 | $class->_add_column_group($group => @_) if @_; |
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15 | return $class->all_columns if $group eq "All"; |
16 | return $class->primary_column if $group eq "Primary"; |
17 | return keys %{$class->_column_groups->{$group}}; |
18 | } |
19 | |
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20 | sub _add_column_group { |
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21 | my ($class, $group, @cols) = @_; |
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22 | $class->add_columns(@cols); |
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23 | $class->_register_column_group($group => @cols); |
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24 | } |
25 | |
26 | sub _register_column_group { |
27 | my ($class, $group, @cols) = @_; |
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28 | |
29 | my $groups = { %{$class->_column_groups} }; |
30 | |
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31 | if ($group eq 'Primary') { |
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32 | $class->set_primary_key(@cols); |
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33 | $groups->{'Essential'}{$_} ||= {} for @cols; |
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34 | } |
35 | |
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36 | if ($group eq 'All') { |
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37 | unless (exists $class->_column_groups->{'Primary'}) { |
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38 | $groups->{'Primary'}{$cols[0]} = {}; |
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39 | $class->set_primary_key($cols[0]); |
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40 | } |
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41 | unless (exists $class->_column_groups->{'Essential'}) { |
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42 | $groups->{'Essential'}{$cols[0]} = {}; |
43 | } |
44 | } |
45 | |
46 | $groups->{$group}{$_} ||= {} for @cols; |
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47 | |
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48 | $class->_column_groups($groups); |
49 | } |
50 | |
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51 | sub all_columns { return shift->result_source_instance->columns; } |
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52 | |
53 | sub primary_column { |
54 | my ($class) = @_; |
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55 | my @pri = $class->primary_columns; |
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56 | return wantarray ? @pri : $pri[0]; |
57 | } |
58 | |
59 | sub find_column { |
60 | my ($class, $col) = @_; |
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61 | return $col if $class->has_column($col); |
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62 | } |
63 | |
64 | sub __grouper { |
65 | my ($class) = @_; |
66 | return bless({ class => $class}, 'DBIx::Class::CDBICompat::ColumnGroups::GrouperShim'); |
67 | } |
68 | |
69 | sub _find_columns { |
70 | my ($class, @col) = @_; |
71 | return map { $class->find_column($_) } @col; |
72 | } |
73 | |
74 | package DBIx::Class::CDBICompat::ColumnGroups::GrouperShim; |
75 | |
76 | sub groups_for { |
77 | my ($self, @cols) = @_; |
78 | my %groups; |
79 | foreach my $col (@cols) { |
80 | foreach my $group (keys %{$self->{class}->_column_groups}) { |
81 | $groups{$group} = 1 if $self->{class}->_column_groups->{$group}->{$col}; |
82 | } |
83 | } |
84 | return keys %groups; |
85 | } |
86 | |
87 | |
88 | 1; |