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package Wikibase::Datatype::Struct::Reference; |
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373467
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use base qw(Exporter); |
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97
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24
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2988
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use strict; |
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531
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use warnings; |
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917
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1684
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use Error::Pure qw(err); |
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35648
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1003
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296
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use Readonly; |
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105
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1028
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11184
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use Wikibase::Datatype::Reference; |
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24265
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768
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12056
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use Wikibase::Datatype::Struct::Utils qw(obj_array_ref2struct struct2snaks_array_ref); |
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73
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581
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Readonly::Array our @EXPORT_OK => qw(obj2struct struct2obj); |
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our $VERSION = 0.08; |
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sub obj2struct { |
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12469
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my ($obj, $base_uri) = @_; |
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100
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if (! defined $obj) { |
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err "Object doesn't exist."; |
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} |
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100
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43
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if (! $obj->isa('Wikibase::Datatype::Reference')) { |
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err "Object isn't 'Wikibase::Datatype::Reference'."; |
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} |
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100
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if (! defined $base_uri) { |
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1
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err 'Base URI is required.'; |
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} |
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my $struct_hr = obj_array_ref2struct($obj->snaks, 'snaks', $base_uri); |
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return $struct_hr; |
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} |
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sub struct2obj { |
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2460
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my $struct_hr = shift; |
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37
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5
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my $obj = Wikibase::Datatype::Reference->new( |
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'snaks' => struct2snaks_array_ref($struct_hr, 'snaks'), |
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); |
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41
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5
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378
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return $obj; |
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} |
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1; |
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46
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__END__ |
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=pod |
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50
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=encoding utf8 |
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52
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=head1 NAME |
53
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54
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Wikibase::Datatype::Struct::Reference - Wikibase reference structure serialization. |
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56
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=head1 SYNOPSIS |
57
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58
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use Wikibase::Datatype::Struct::Reference qw(obj2struct struct2obj); |
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60
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my $struct_hr = obj2struct($obj, $base_uri); |
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my $obj = struct2obj($struct_hr); |
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63
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=head1 DESCRIPTION |
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65
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This conversion is between objects defined in Wikibase::Datatype and structures |
66
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serialized via JSON to MediaWiki. |
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68
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=head1 SUBROUTINES |
69
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70
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=head2 C<obj2struct> |
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72
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my $struct_hr = obj2struct($obj, $base_uri); |
73
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74
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Convert Wikibase::Datatype::Reference instance to structure. |
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C<$base_uri> is base URI of Wikibase system (e.g. http://test.wikidata.org/entity/). |
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77
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Returns reference to hash with structure. |
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79
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=head2 C<struct2obj> |
80
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81
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my $obj = struct2obj($struct_hr); |
82
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83
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Convert structure of reference to object. |
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85
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Returns Wikibase::Datatype::Reference instance. |
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87
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=head1 ERRORS |
88
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89
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obj2struct(): |
90
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Base URI is required. |
91
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Object doesn't exist. |
92
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Object isn't 'Wikibase::Datatype::Reference'. |
93
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94
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=head1 EXAMPLE1 |
95
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96
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use strict; |
97
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use warnings; |
98
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99
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use Data::Printer; |
100
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use Wikibase::Datatype::Reference; |
101
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use Wikibase::Datatype::Snak; |
102
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use Wikibase::Datatype::Struct::Reference qw(obj2struct); |
103
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use Wikibase::Datatype::Value::Item; |
104
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use Wikibase::Datatype::Value::String; |
105
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use Wikibase::Datatype::Value::Time; |
106
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107
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# Object. |
108
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# instance of (P31) human (Q5) |
109
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my $obj = Wikibase::Datatype::Reference->new( |
110
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'snaks' => [ |
111
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# stated in (P248) Virtual International Authority File (Q53919) |
112
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Wikibase::Datatype::Snak->new( |
113
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'datatype' => 'wikibase-item', |
114
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'datavalue' => Wikibase::Datatype::Value::Item->new( |
115
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'value' => 'Q53919', |
116
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), |
117
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'property' => 'P248', |
118
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), |
119
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120
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# VIAF ID (P214) 113230702 |
121
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Wikibase::Datatype::Snak->new( |
122
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'datatype' => 'external-id', |
123
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'datavalue' => Wikibase::Datatype::Value::String->new( |
124
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'value' => '113230702', |
125
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), |
126
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'property' => 'P214', |
127
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), |
128
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129
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# retrieved (P813) 7 December 2013 |
130
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Wikibase::Datatype::Snak->new( |
131
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'datatype' => 'time', |
132
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'datavalue' => Wikibase::Datatype::Value::Time->new( |
133
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'value' => '+2013-12-07T00:00:00Z', |
134
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), |
135
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'property' => 'P813', |
136
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), |
137
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], |
138
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); |
139
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140
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# Get structure. |
141
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my $struct_hr = obj2struct($obj, 'http://test.wikidata.org/entity/'); |
142
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143
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# Dump to output. |
144
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p $struct_hr; |
145
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146
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# Output: |
147
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# \ { |
148
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# snaks { |
149
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# P214 [ |
150
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# [0] { |
151
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# datatype "external-id", |
152
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# datavalue { |
153
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# type "string", |
154
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# value 113230702 |
155
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# }, |
156
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# property "P214", |
157
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# snaktype "value" |
158
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# } |
159
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# ], |
160
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# P248 [ |
161
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# [0] { |
162
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# datatype "wikibase-item", |
163
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# datavalue { |
164
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# type "wikibase-entityid", |
165
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# value { |
166
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# entity-type "item", |
167
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# id "Q53919", |
168
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# numeric-id 53919 |
169
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# } |
170
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# }, |
171
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# property "P248", |
172
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# snaktype "value" |
173
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# } |
174
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# ], |
175
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# P813 [ |
176
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# [0] { |
177
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# datatype "time", |
178
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# datavalue { |
179
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# type "time", |
180
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# value { |
181
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# after 0, |
182
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# before 0, |
183
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# calendarmodel "http://test.wikidata.org/entity/Q1985727", |
184
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# precision 11, |
185
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# time "+2013-12-07T00:00:00Z", |
186
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# timezone 0 |
187
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# } |
188
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# }, |
189
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# property "P813", |
190
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# snaktype "value" |
191
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# } |
192
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# ] |
193
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# }, |
194
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# snaks-order [ |
195
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# [0] "P248", |
196
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# [1] "P214", |
197
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# [2] "P813" |
198
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# ] |
199
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# } |
200
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201
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=head1 EXAMPLE2 |
202
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203
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use strict; |
204
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use warnings; |
205
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206
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use Wikibase::Datatype::Struct::Reference qw(struct2obj); |
207
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208
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# Item structure. |
209
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my $struct_hr = { |
210
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'snaks' => { |
211
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'P214' => [{ |
212
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'datatype' => 'external-id', |
213
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'datavalue' => { |
214
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'type' => 'string', |
215
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'value' => '113230702', |
216
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}, |
217
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'property' => 'P214', |
218
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'snaktype' => 'value', |
219
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}], |
220
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'P248' => [{ |
221
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'datatype' => 'wikibase-item', |
222
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'datavalue' => { |
223
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'type' => 'wikibase-entityid', |
224
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'value' => { |
225
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'entity-type' => 'item', |
226
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'id' => 'Q53919', |
227
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'numeric-id' => 53919, |
228
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}, |
229
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}, |
230
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'property' => 'P248', |
231
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'snaktype' => 'value', |
232
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}], |
233
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'P813' => [{ |
234
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'datatype' => 'time', |
235
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'datavalue' => { |
236
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'type' => 'time', |
237
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'value' => { |
238
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'after' => 0, |
239
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'before' => 0, |
240
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'calendarmodel' => 'http://test.wikidata.org/entity/Q1985727', |
241
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'precision' => 11, |
242
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'time' => '+2013-12-07T00:00:00Z', |
243
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'timezone' => 0, |
244
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}, |
245
|
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}, |
246
|
|
|
|
|
|
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'property' => 'P813', |
247
|
|
|
|
|
|
|
'snaktype' => 'value', |
248
|
|
|
|
|
|
|
}], |
249
|
|
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|
|
|
}, |
250
|
|
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|
|
'snaks-order' => [ |
251
|
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|
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'P248', |
252
|
|
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|
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|
'P214', |
253
|
|
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'P813', |
254
|
|
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|
|
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|
], |
255
|
|
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|
|
|
|
}; |
256
|
|
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|
257
|
|
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|
|
# Get object. |
258
|
|
|
|
|
|
|
my $obj = struct2obj($struct_hr); |
259
|
|
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|
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260
|
|
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|
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|
|
# Get value. |
261
|
|
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|
|
|
|
my $snaks_ar = $obj->snaks; |
262
|
|
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|
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|
|
263
|
|
|
|
|
|
|
# Print out number of snaks. |
264
|
|
|
|
|
|
|
print "Number of snaks: ".@{$snaks_ar}."\n"; |
265
|
|
|
|
|
|
|
|
266
|
|
|
|
|
|
|
# Output: |
267
|
|
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|
|
|
|
# Number of snaks: 3 |
268
|
|
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|
|
|
|
|
269
|
|
|
|
|
|
|
=head1 DEPENDENCIES |
270
|
|
|
|
|
|
|
|
271
|
|
|
|
|
|
|
L<Error::Pure>, |
272
|
|
|
|
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|
|
L<Exporter>, |
273
|
|
|
|
|
|
|
L<Readonly>, |
274
|
|
|
|
|
|
|
L<Wikibase::Datatype::Reference>, |
275
|
|
|
|
|
|
|
L<Wikibase::Datatype::Struct::Utils>. |
276
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
=head1 SEE ALSO |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
=over |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
|
|
|
=item L<Wikibase::Datatype::Struct> |
282
|
|
|
|
|
|
|
|
283
|
|
|
|
|
|
|
Wikibase structure serialization. |
284
|
|
|
|
|
|
|
|
285
|
|
|
|
|
|
|
=item L<Wikibase::Datatype::Reference> |
286
|
|
|
|
|
|
|
|
287
|
|
|
|
|
|
|
Wikibase reference datatype. |
288
|
|
|
|
|
|
|
|
289
|
|
|
|
|
|
|
=back |
290
|
|
|
|
|
|
|
|
291
|
|
|
|
|
|
|
=head1 REPOSITORY |
292
|
|
|
|
|
|
|
|
293
|
|
|
|
|
|
|
L<https://github.com/michal-josef-spacek/Wikibase-Datatype-Struct> |
294
|
|
|
|
|
|
|
|
295
|
|
|
|
|
|
|
=head1 AUTHOR |
296
|
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
Michal Josef Špaček L<mailto:skim@cpan.org> |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
L<http://skim.cz> |
300
|
|
|
|
|
|
|
|
301
|
|
|
|
|
|
|
=head1 LICENSE AND COPYRIGHT |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
© Michal Josef Špaček 2020-2021 |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
BSD 2-Clause License |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
=head1 VERSION |
308
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
0.08 |
310
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
=cut |