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1 | package # hide from PAUSE |
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2 | DBIx::Class::CDBICompat::TempColumns; |
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3 | |
4 | use strict; |
5 | use warnings; |
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6 | use base qw/DBIx::Class/; |
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7 | |
8 | __PACKAGE__->mk_classdata('_temp_columns' => { }); |
9 | |
10 | sub _add_column_group { |
11 | my ($class, $group, @cols) = @_; |
12 | if ($group eq 'TEMP') { |
13 | $class->_register_column_group($group => @cols); |
14 | $class->mk_group_accessors('temp' => @cols); |
15 | my %tmp = %{$class->_temp_columns}; |
16 | $tmp{$_} = 1 for @cols; |
17 | $class->_temp_columns(\%tmp); |
18 | } else { |
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19 | return $class->next::method($group, @cols); |
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20 | } |
21 | } |
22 | |
23 | sub new { |
24 | my ($class, $attrs, @rest) = @_; |
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25 | |
26 | my $temp = $class->_extract_temp_data($attrs); |
27 | |
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28 | my $new = $class->next::method($attrs, @rest); |
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29 | |
30 | $new->set_temp($_, $temp->{$_}) for keys %$temp; |
31 | |
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32 | return $new; |
33 | } |
34 | |
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35 | sub _extract_temp_data { |
36 | my($self, $data) = @_; |
37 | |
38 | my %temp; |
39 | foreach my $key (keys %$data) { |
40 | $temp{$key} = delete $data->{$key} if $self->_temp_columns->{$key}; |
41 | } |
42 | |
43 | return \%temp; |
44 | } |
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45 | |
46 | sub find_column { |
47 | my ($class, $col, @rest) = @_; |
48 | return $col if $class->_temp_columns->{$col}; |
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49 | return $class->next::method($col, @rest); |
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50 | } |
51 | |
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52 | sub set { |
53 | my($self, %data) = @_; |
54 | |
55 | my $temp_data = $self->_extract_temp_data(\%data); |
56 | |
57 | $self->set_temp($_, $temp_data->{$_}) for keys %$temp_data; |
58 | |
59 | return $self->next::method(%data); |
60 | } |
61 | |
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62 | sub get_temp { |
63 | my ($self, $column) = @_; |
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64 | $self->throw_exception( "Can't fetch data as class method" ) unless ref $self; |
65 | $self->throw_exception( "No such TEMP column '${column}'" ) unless $self->_temp_columns->{$column} ; |
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66 | return $self->{_temp_column_data}{$column} |
67 | if exists $self->{_temp_column_data}{$column}; |
68 | return undef; |
69 | } |
70 | |
71 | sub set_temp { |
72 | my ($self, $column, $value) = @_; |
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73 | $self->throw_exception( "No such TEMP column '${column}'" ) |
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74 | unless $self->_temp_columns->{$column}; |
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75 | $self->throw_exception( "set_temp called for ${column} without value" ) |
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76 | if @_ < 3; |
77 | return $self->{_temp_column_data}{$column} = $value; |
78 | } |
79 | |
80 | sub has_real_column { |
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81 | return 1 if shift->has_column(shift); |
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82 | } |
83 | |
84 | 1; |