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package Wikibase::Datatype::Struct::Statement; |
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1037682
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use base qw(Exporter); |
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2402
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4
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187
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use strict; |
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79
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492
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5
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use warnings; |
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719
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1494
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use Error::Pure qw(err); |
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34336
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838
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300
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use Readonly; |
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73
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851
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8655
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use Wikibase::Datatype::Statement; |
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92047
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942
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11268
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use Wikibase::Datatype::Struct::Reference; |
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1185
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10841
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use Wikibase::Datatype::Struct::Snak; |
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1218
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use Wikibase::Datatype::Struct::Utils qw(obj_array_ref2struct struct2snaks_array_ref); |
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9560
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Readonly::Array our @EXPORT_OK => qw(obj2struct struct2obj); |
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our $VERSION = 0.11; |
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sub obj2struct { |
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16382
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my ($obj, $base_uri) = @_; |
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100
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if (! defined $obj) { |
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1
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err "Object doesn't exist."; |
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} |
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100
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if (! $obj->isa('Wikibase::Datatype::Statement')) { |
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1
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err "Object isn't 'Wikibase::Datatype::Statement'."; |
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} |
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if (! defined $base_uri) { |
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0
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0
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err 'Base URI is required.'; |
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} |
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my $struct_hr = { |
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defined $obj->id ? ('id' => $obj->id) : (), |
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'mainsnak' => Wikibase::Datatype::Struct::Snak::obj2struct($obj->snak, $base_uri), |
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74
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@{$obj->property_snaks} ? ( |
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2
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26
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%{obj_array_ref2struct($obj->property_snaks, 'qualifiers', $base_uri)}, |
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) : (), |
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'rank' => $obj->rank, |
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415
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@{$obj->references} ? ( |
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'references' => [ |
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4
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map { Wikibase::Datatype::Struct::Reference::obj2struct($_, $base_uri); } |
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18
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100
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68
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@{$obj->references}, |
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100
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68
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100
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42
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], |
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) : (), |
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'type' => 'statement', |
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}; |
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47
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18
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209
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return $struct_hr; |
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} |
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50
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sub struct2obj { |
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10
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10
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1
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211
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my $struct_hr = shift; |
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53
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my $obj = Wikibase::Datatype::Statement->new( |
54
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exists $struct_hr->{'id'} ? ('id' => $struct_hr->{'id'}) : (), |
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'property_snaks' => struct2snaks_array_ref($struct_hr, 'qualifiers'), |
56
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'snak' => Wikibase::Datatype::Struct::Snak::struct2obj($struct_hr->{'mainsnak'}), |
57
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'references' => [ |
58
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4
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26
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map { Wikibase::Datatype::Struct::Reference::struct2obj($_) } |
59
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10
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76
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@{$struct_hr->{'references'}} |
60
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], |
61
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10
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100
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111
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'rank' => $struct_hr->{'rank'}, |
62
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); |
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64
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10
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1446
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return $obj; |
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} |
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67
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1; |
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69
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__END__ |
70
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71
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=pod |
72
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73
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=encoding utf8 |
74
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75
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=head1 NAME |
76
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77
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Wikibase::Datatype::Struct::Statement - Wikibase statement structure serialization. |
78
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79
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=head1 SYNOPSIS |
80
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81
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use Wikibase::Datatype::Struct::Statement qw(obj2struct struct2obj); |
82
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83
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my $struct_hr = obj2struct($obj, $base_uri); |
84
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my $obj = struct2obj($struct_hr); |
85
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86
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=head1 DESCRIPTION |
87
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88
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This conversion is between objects defined in Wikibase::Datatype and structures |
89
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serialized via JSON to MediaWiki. |
90
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91
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=head1 SUBROUTINES |
92
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93
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=head2 C<obj2struct> |
94
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95
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my $struct_hr = obj2struct($obj, $base_uri); |
96
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97
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Convert Wikibase::Datatype::Statement instance to structure. |
98
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C<$base_uri> is base URI of Wikibase system (e.g. http://test.wikidata.org/entity/). |
99
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100
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Returns reference to hash with structure. |
101
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102
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=head2 C<struct2obj> |
103
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104
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my $obj = struct2obj($struct_hr); |
105
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106
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Convert structure of statement to object. |
107
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108
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Returns Wikibase::Datatype::Statement instance. |
109
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110
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=head1 ERRORS |
111
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112
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obj2struct(): |
113
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Base URI is required. |
114
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Object doesn't exist. |
115
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Object isn't 'Wikibase::Datatype::Statement'. |
116
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117
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=head1 EXAMPLE1 |
118
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119
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=for comment filename=obj2struct_statement.pl |
120
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121
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use strict; |
122
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use warnings; |
123
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124
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use Data::Printer; |
125
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use Wikibase::Datatype::Reference; |
126
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use Wikibase::Datatype::Snak; |
127
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use Wikibase::Datatype::Statement; |
128
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use Wikibase::Datatype::Struct::Statement qw(obj2struct); |
129
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use Wikibase::Datatype::Value::Item; |
130
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use Wikibase::Datatype::Value::String; |
131
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use Wikibase::Datatype::Value::Time; |
132
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133
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# Object. |
134
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my $obj = Wikibase::Datatype::Statement->new( |
135
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'id' => 'Q123$00C04D2A-49AF-40C2-9930-C551916887E8', |
136
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137
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# instance of (P31) human (Q5) |
138
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'snak' => Wikibase::Datatype::Snak->new( |
139
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'datatype' => 'wikibase-item', |
140
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'datavalue' => Wikibase::Datatype::Value::Item->new( |
141
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'value' => 'Q5', |
142
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), |
143
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'property' => 'P31', |
144
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), |
145
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'property_snaks' => [ |
146
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# of (P642) alien (Q474741) |
147
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Wikibase::Datatype::Snak->new( |
148
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'datatype' => 'wikibase-item', |
149
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'datavalue' => Wikibase::Datatype::Value::Item->new( |
150
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'value' => 'Q474741', |
151
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), |
152
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'property' => 'P642', |
153
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), |
154
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], |
155
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'references' => [ |
156
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Wikibase::Datatype::Reference->new( |
157
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'snaks' => [ |
158
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# stated in (P248) Virtual International Authority File (Q53919) |
159
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Wikibase::Datatype::Snak->new( |
160
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'datatype' => 'wikibase-item', |
161
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'datavalue' => Wikibase::Datatype::Value::Item->new( |
162
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'value' => 'Q53919', |
163
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), |
164
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'property' => 'P248', |
165
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), |
166
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167
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# VIAF ID (P214) 113230702 |
168
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Wikibase::Datatype::Snak->new( |
169
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'datatype' => 'external-id', |
170
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'datavalue' => Wikibase::Datatype::Value::String->new( |
171
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'value' => '113230702', |
172
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), |
173
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'property' => 'P214', |
174
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), |
175
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176
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# retrieved (P813) 7 December 2013 |
177
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Wikibase::Datatype::Snak->new( |
178
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'datatype' => 'time', |
179
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'datavalue' => Wikibase::Datatype::Value::Time->new( |
180
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'value' => '+2013-12-07T00:00:00Z', |
181
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), |
182
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'property' => 'P813', |
183
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), |
184
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], |
185
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), |
186
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], |
187
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); |
188
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189
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# Get structure. |
190
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my $struct_hr = obj2struct($obj, 'http://test.wikidata.org/entity/'); |
191
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192
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# Dump to output. |
193
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p $struct_hr; |
194
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195
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# Output: |
196
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# \ { |
197
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# id "Q123$00C04D2A-49AF-40C2-9930-C551916887E8", |
198
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# mainsnak { |
199
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# datatype "wikibase-item", |
200
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# datavalue { |
201
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# type "wikibase-entityid", |
202
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# value { |
203
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# entity-type "item", |
204
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# id "Q5", |
205
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# numeric-id 5 |
206
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# } |
207
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# }, |
208
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# property "P31", |
209
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# snaktype "value" |
210
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# }, |
211
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# qualifiers { |
212
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# P642 [ |
213
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# [0] { |
214
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# datatype "wikibase-item", |
215
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# datavalue { |
216
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# type "wikibase-entityid", |
217
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# value { |
218
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# entity-type "item", |
219
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# id "Q474741", |
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# numeric-id 474741 |
221
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# } |
222
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# }, |
223
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# property "P642", |
224
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# snaktype "value" |
225
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# } |
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# ] |
227
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# }, |
228
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# qualifiers-order [ |
229
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# [0] "P642" |
230
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# ], |
231
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# rank "normal", |
232
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# references [ |
233
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# [0] { |
234
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# snaks { |
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# P214 [ |
236
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# [0] { |
237
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# datatype "external-id", |
238
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# datavalue { |
239
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# type "string", |
240
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# value 113230702 |
241
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# }, |
242
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# property "P214", |
243
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# snaktype "value" |
244
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# } |
245
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# ], |
246
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# P248 [ |
247
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# [0] { |
248
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# datatype "wikibase-item", |
249
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# datavalue { |
250
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# type "wikibase-entityid", |
251
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# value { |
252
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# entity-type "item", |
253
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# id "Q53919", |
254
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# numeric-id 53919 |
255
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# } |
256
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# }, |
257
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# property "P248", |
258
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# snaktype "value" |
259
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# } |
260
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# ], |
261
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# P813 [ |
262
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# [0] { |
263
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# datatype "time", |
264
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# datavalue { |
265
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# type "time", |
266
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# value { |
267
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# after 0, |
268
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# before 0, |
269
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# calendarmodel "http://test.wikidata.org/entity/Q1985727", |
270
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# precision 11, |
271
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# time "+2013-12-07T00:00:00Z", |
272
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# timezone 0 |
273
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# } |
274
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# }, |
275
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# property "P813", |
276
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# snaktype "value" |
277
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# } |
278
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# ] |
279
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# }, |
280
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|
|
# snaks-order [ |
281
|
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# [0] "P248", |
282
|
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# [1] "P214", |
283
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# [2] "P813" |
284
|
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# ] |
285
|
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# } |
286
|
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# ], |
287
|
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|
# type "statement" |
288
|
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# } |
289
|
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290
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|
=head1 EXAMPLE2 |
291
|
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292
|
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|
|
=for comment filename=struct2obj_statement.pl |
293
|
|
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|
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294
|
|
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|
|
use strict; |
295
|
|
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|
|
use warnings; |
296
|
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|
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297
|
|
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|
|
use Wikibase::Datatype::Struct::Statement qw(struct2obj); |
298
|
|
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|
|
|
299
|
|
|
|
|
|
|
# Item structure. |
300
|
|
|
|
|
|
|
my $struct_hr = { |
301
|
|
|
|
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|
|
'id' => 'Q123$00C04D2A-49AF-40C2-9930-C551916887E8', |
302
|
|
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|
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|
|
'mainsnak' => { |
303
|
|
|
|
|
|
|
'datatype' => 'wikibase-item', |
304
|
|
|
|
|
|
|
'datavalue' => { |
305
|
|
|
|
|
|
|
'type' => 'wikibase-entityid', |
306
|
|
|
|
|
|
|
'value' => { |
307
|
|
|
|
|
|
|
'entity-type' => 'item', |
308
|
|
|
|
|
|
|
'id' => 'Q5', |
309
|
|
|
|
|
|
|
'numeric-id' => 5, |
310
|
|
|
|
|
|
|
}, |
311
|
|
|
|
|
|
|
}, |
312
|
|
|
|
|
|
|
'property' => 'P31', |
313
|
|
|
|
|
|
|
'snaktype' => 'value', |
314
|
|
|
|
|
|
|
}, |
315
|
|
|
|
|
|
|
'qualifiers' => { |
316
|
|
|
|
|
|
|
'P642' => [{ |
317
|
|
|
|
|
|
|
'datatype' => 'wikibase-item', |
318
|
|
|
|
|
|
|
'datavalue' => { |
319
|
|
|
|
|
|
|
'type' => 'wikibase-entityid', |
320
|
|
|
|
|
|
|
'value' => { |
321
|
|
|
|
|
|
|
'entity-type' => 'item', |
322
|
|
|
|
|
|
|
'id' => 'Q474741', |
323
|
|
|
|
|
|
|
'numeric-id' => 474741, |
324
|
|
|
|
|
|
|
}, |
325
|
|
|
|
|
|
|
}, |
326
|
|
|
|
|
|
|
'property' => 'P642', |
327
|
|
|
|
|
|
|
'snaktype' => 'value', |
328
|
|
|
|
|
|
|
}], |
329
|
|
|
|
|
|
|
}, |
330
|
|
|
|
|
|
|
'qualifiers-order' => [ |
331
|
|
|
|
|
|
|
'P642', |
332
|
|
|
|
|
|
|
], |
333
|
|
|
|
|
|
|
'rank' => 'normal', |
334
|
|
|
|
|
|
|
'references' => [{ |
335
|
|
|
|
|
|
|
'snaks' => { |
336
|
|
|
|
|
|
|
'P214' => [{ |
337
|
|
|
|
|
|
|
'datatype' => 'external-id', |
338
|
|
|
|
|
|
|
'datavalue' => { |
339
|
|
|
|
|
|
|
'type' => 'string', |
340
|
|
|
|
|
|
|
'value' => '113230702', |
341
|
|
|
|
|
|
|
}, |
342
|
|
|
|
|
|
|
'property' => 'P214', |
343
|
|
|
|
|
|
|
'snaktype' => 'value', |
344
|
|
|
|
|
|
|
}], |
345
|
|
|
|
|
|
|
'P248' => [{ |
346
|
|
|
|
|
|
|
'datatype' => 'wikibase-item', |
347
|
|
|
|
|
|
|
'datavalue' => { |
348
|
|
|
|
|
|
|
'type' => 'wikibase-entityid', |
349
|
|
|
|
|
|
|
'value' => { |
350
|
|
|
|
|
|
|
'entity-type' => 'item', |
351
|
|
|
|
|
|
|
'id' => 'Q53919', |
352
|
|
|
|
|
|
|
'numeric-id' => 53919, |
353
|
|
|
|
|
|
|
}, |
354
|
|
|
|
|
|
|
}, |
355
|
|
|
|
|
|
|
'property' => 'P248', |
356
|
|
|
|
|
|
|
'snaktype' => 'value', |
357
|
|
|
|
|
|
|
}], |
358
|
|
|
|
|
|
|
'P813' => [{ |
359
|
|
|
|
|
|
|
'datatype' => 'time', |
360
|
|
|
|
|
|
|
'datavalue' => { |
361
|
|
|
|
|
|
|
'type' => 'time', |
362
|
|
|
|
|
|
|
'value' => { |
363
|
|
|
|
|
|
|
'after' => 0, |
364
|
|
|
|
|
|
|
'before' => 0, |
365
|
|
|
|
|
|
|
'calendarmodel' => 'http://test.wikidata.org/entity/Q1985727', |
366
|
|
|
|
|
|
|
'precision' => 11, |
367
|
|
|
|
|
|
|
'time' => '+2013-12-07T00:00:00Z', |
368
|
|
|
|
|
|
|
'timezone' => 0, |
369
|
|
|
|
|
|
|
}, |
370
|
|
|
|
|
|
|
}, |
371
|
|
|
|
|
|
|
'property' => 'P813', |
372
|
|
|
|
|
|
|
'snaktype' => 'value', |
373
|
|
|
|
|
|
|
}], |
374
|
|
|
|
|
|
|
}, |
375
|
|
|
|
|
|
|
'snaks-order' => [ |
376
|
|
|
|
|
|
|
'P248', |
377
|
|
|
|
|
|
|
'P214', |
378
|
|
|
|
|
|
|
'P813', |
379
|
|
|
|
|
|
|
], |
380
|
|
|
|
|
|
|
}], |
381
|
|
|
|
|
|
|
'type' => 'statement', |
382
|
|
|
|
|
|
|
}; |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
# Get object. |
385
|
|
|
|
|
|
|
my $obj = struct2obj($struct_hr); |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
# Print out. |
388
|
|
|
|
|
|
|
print 'Id: '.$obj->id."\n"; |
389
|
|
|
|
|
|
|
print 'Claim: '.$obj->snak->property.' -> '.$obj->snak->datavalue->value."\n"; |
390
|
|
|
|
|
|
|
print "Qualifiers:\n"; |
391
|
|
|
|
|
|
|
foreach my $property_snak (@{$obj->property_snaks}) { |
392
|
|
|
|
|
|
|
print "\t".$property_snak->property.' -> '. |
393
|
|
|
|
|
|
|
$property_snak->datavalue->value."\n"; |
394
|
|
|
|
|
|
|
} |
395
|
|
|
|
|
|
|
print "References:\n"; |
396
|
|
|
|
|
|
|
foreach my $reference (@{$obj->references}) { |
397
|
|
|
|
|
|
|
print "\tReference:\n"; |
398
|
|
|
|
|
|
|
foreach my $reference_snak (@{$reference->snaks}) { |
399
|
|
|
|
|
|
|
print "\t\t".$reference_snak->property.' -> '. |
400
|
|
|
|
|
|
|
$reference_snak->datavalue->value."\n"; |
401
|
|
|
|
|
|
|
} |
402
|
|
|
|
|
|
|
} |
403
|
|
|
|
|
|
|
print 'Rank: '.$obj->rank."\n"; |
404
|
|
|
|
|
|
|
|
405
|
|
|
|
|
|
|
# Output: |
406
|
|
|
|
|
|
|
# Id: Q123$00C04D2A-49AF-40C2-9930-C551916887E8 |
407
|
|
|
|
|
|
|
# Claim: P31 -> Q5 |
408
|
|
|
|
|
|
|
# Qualifiers: |
409
|
|
|
|
|
|
|
# P642 -> Q474741 |
410
|
|
|
|
|
|
|
# References: |
411
|
|
|
|
|
|
|
# Reference: |
412
|
|
|
|
|
|
|
# P248 -> Q53919 |
413
|
|
|
|
|
|
|
# P214 -> 113230702 |
414
|
|
|
|
|
|
|
# P813 -> +2013-12-07T00:00:00Z |
415
|
|
|
|
|
|
|
# Rank: normal |
416
|
|
|
|
|
|
|
|
417
|
|
|
|
|
|
|
=head1 DEPENDENCIES |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
L<Error::Pure>, |
420
|
|
|
|
|
|
|
L<Exporter>, |
421
|
|
|
|
|
|
|
L<Readonly>, |
422
|
|
|
|
|
|
|
L<Wikibase::Datatype::Statement>, |
423
|
|
|
|
|
|
|
L<Wikibase::Datatype::Struct::Reference>, |
424
|
|
|
|
|
|
|
L<Wikibase::Datatype::Struct::Snak>, |
425
|
|
|
|
|
|
|
L<Wikibase::Datatype::Struct::Utils>. |
426
|
|
|
|
|
|
|
|
427
|
|
|
|
|
|
|
=head1 SEE ALSO |
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
=over |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
=item L<Wikibase::Datatype::Struct> |
432
|
|
|
|
|
|
|
|
433
|
|
|
|
|
|
|
Wikibase structure serialization. |
434
|
|
|
|
|
|
|
|
435
|
|
|
|
|
|
|
=item L<Wikibase::Datatype::Statement> |
436
|
|
|
|
|
|
|
|
437
|
|
|
|
|
|
|
Wikibase statement datatype. |
438
|
|
|
|
|
|
|
|
439
|
|
|
|
|
|
|
=back |
440
|
|
|
|
|
|
|
|
441
|
|
|
|
|
|
|
=head1 REPOSITORY |
442
|
|
|
|
|
|
|
|
443
|
|
|
|
|
|
|
L<https://github.com/michal-josef-spacek/Wikibase-Datatype-Struct> |
444
|
|
|
|
|
|
|
|
445
|
|
|
|
|
|
|
=head1 AUTHOR |
446
|
|
|
|
|
|
|
|
447
|
|
|
|
|
|
|
Michal Josef Špaček L<mailto:skim@cpan.org> |
448
|
|
|
|
|
|
|
|
449
|
|
|
|
|
|
|
L<http://skim.cz> |
450
|
|
|
|
|
|
|
|
451
|
|
|
|
|
|
|
=head1 LICENSE AND COPYRIGHT |
452
|
|
|
|
|
|
|
|
453
|
|
|
|
|
|
|
© 2020-2023 Michal Josef Špaček |
454
|
|
|
|
|
|
|
|
455
|
|
|
|
|
|
|
BSD 2-Clause License |
456
|
|
|
|
|
|
|
|
457
|
|
|
|
|
|
|
=head1 VERSION |
458
|
|
|
|
|
|
|
|
459
|
|
|
|
|
|
|
0.11 |
460
|
|
|
|
|
|
|
|
461
|
|
|
|
|
|
|
=cut |