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1 | package DBIx::Class::CDBICompat::ColumnGroups; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use NEXT; |
6 | |
7 | use base qw/Class::Data::Inheritable/; |
8 | |
9 | __PACKAGE__->mk_classdata('_column_groups' => { }); |
10 | |
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11 | sub columns { |
12 | my $proto = shift; |
13 | my $class = ref $proto || $proto; |
14 | my $group = shift || "All"; |
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15 | $class->_add_column_group($group => @_) if @_; |
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16 | return $class->all_columns if $group eq "All"; |
17 | return $class->primary_column if $group eq "Primary"; |
18 | return keys %{$class->_column_groups->{$group}}; |
19 | } |
20 | |
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21 | sub _add_column_group { |
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22 | my ($class, $group, @cols) = @_; |
23 | $class->_register_column_group($group => @cols); |
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24 | $class->add_columns(@cols); |
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25 | } |
26 | |
27 | sub _register_column_group { |
28 | my ($class, $group, @cols) = @_; |
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29 | |
30 | my $groups = { %{$class->_column_groups} }; |
31 | |
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32 | if ($group eq 'Primary') { |
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33 | $class->set_primary_key(@cols); |
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34 | $groups->{'Essential'}{$_} ||= {} for @cols; |
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35 | } |
36 | |
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37 | if ($group eq 'All') { |
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38 | unless (exists $class->_column_groups->{'Primary'}) { |
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39 | $groups->{'Primary'}{$cols[0]} = {}; |
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40 | $class->set_primary_key($cols[0]); |
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41 | } |
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42 | unless (exists $class->_column_groups->{'Essential'}) { |
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43 | #$class->_register_column_group('Essential' => $cols[0]); |
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44 | $groups->{'Essential'}{$cols[0]} = {}; |
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45 | #$groups->{'Essential'}{$_} ||= {} for keys %{ $class->_primaries || {} }; |
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46 | } |
47 | } |
48 | |
49 | $groups->{$group}{$_} ||= {} for @cols; |
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50 | #if ($group eq 'Essential') { |
51 | # $groups->{$group}{$_} ||= {} for keys %{ $class->_primaries || {} }; |
52 | #} |
53 | |
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54 | $class->_column_groups($groups); |
55 | } |
56 | |
57 | sub all_columns { return keys %{$_[0]->_columns}; } |
58 | |
59 | sub primary_column { |
60 | my ($class) = @_; |
61 | my @pri = keys %{$class->_primaries}; |
62 | return wantarray ? @pri : $pri[0]; |
63 | } |
64 | |
65 | sub find_column { |
66 | my ($class, $col) = @_; |
67 | return $col if $class->_columns->{$col}; |
68 | } |
69 | |
70 | sub __grouper { |
71 | my ($class) = @_; |
72 | return bless({ class => $class}, 'DBIx::Class::CDBICompat::ColumnGroups::GrouperShim'); |
73 | } |
74 | |
75 | sub _find_columns { |
76 | my ($class, @col) = @_; |
77 | return map { $class->find_column($_) } @col; |
78 | } |
79 | |
80 | package DBIx::Class::CDBICompat::ColumnGroups::GrouperShim; |
81 | |
82 | sub groups_for { |
83 | my ($self, @cols) = @_; |
84 | my %groups; |
85 | foreach my $col (@cols) { |
86 | foreach my $group (keys %{$self->{class}->_column_groups}) { |
87 | $groups{$group} = 1 if $self->{class}->_column_groups->{$group}->{$col}; |
88 | } |
89 | } |
90 | return keys %groups; |
91 | } |
92 | |
93 | |
94 | 1; |