• NAME
• SYNOPSIS
• DESCRIPTION
• SUBROUTINES
  • obj2struct
  • struct2obj
• ERRORS
• EXAMPLE1
• EXAMPLE2
• DEPENDENCIES
• SEE ALSO
• REPOSITORY
• AUTHOR
• LICENSE AND COPYRIGHT
• VERSION

NAME

Wikibase::Datatype::Struct::Property - Wikibase property structure serialization.

SYNOPSIS

 use Wikibase::Datatype::Struct::Property qw(obj2struct struct2obj);

 my $struct_hr = obj2struct($obj, $base_uri);
 my $obj = struct2obj($struct_hr);

DESCRIPTION

This conversion is between objects defined in Wikibase::Datatype and structures serialized via JSON to MediaWiki.

SUBROUTINES

obj2struct

 my $struct_hr = obj2struct($obj, $base_uri);

Convert Wikibase::Datatype::Property instance to structure. $base_uri is base URI of Wikibase system (e.g. http://test.wikidata.org/entity/).

Returns reference to hash with structure.

struct2obj

 my $obj = struct2obj($struct_hr);

Convert structure of property to object.

Returns Wikibase::Datatype::Property instance.

ERRORS

 obj2struct():
         Base URI is required.
         Object doesn't exist.
         Object isn't 'Wikibase::Datatype::Property'.

 struct2obj():
         Structure isn't for 'property' type.

EXAMPLE1

 use strict;
 use warnings;

 use Data::Printer;
 use Unicode::UTF8 qw(decode_utf8);
 use Wikibase::Datatype::Property;
 use Wikibase::Datatype::Reference;
 use Wikibase::Datatype::Sitelink;
 use Wikibase::Datatype::Snak;
 use Wikibase::Datatype::Statement;
 use Wikibase::Datatype::Struct::Property qw(obj2struct);
 use Wikibase::Datatype::Value::Item;
 use Wikibase::Datatype::Value::Monolingual;
 use Wikibase::Datatype::Value::String;
 use Wikibase::Datatype::Value::Time;

 # Statement.
 my $statement1 = Wikibase::Datatype::Statement->new(
         # instance of (P31) Wikidata property (Q18616576)
         'snak' => Wikibase::Datatype::Snak->new(
                 'datatype' => 'wikibase-item',
                 'datavalue' => Wikibase::Datatype::Value::Item->new(
                         'value' => 'Q18616576',
                 ),
                 'property' => 'P31',
         ),
 );

 # Main property.
 my $obj = Wikibase::Datatype::Property->new(
         'aliases' => [
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'cs',
                         'value' => 'je',
                 ),
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'en',
                         'value' => 'is a',
                 ),
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'en',
                         'value' => 'is an',
                 ),
         ],
         'datatype' => 'wikibase-item',
         'descriptions' => [
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'cs',
                         'value' => decode_utf8('tato položka je jedna konkrétní věc (exemplář, '.
                                 'příklad) patřící do této třídy, kategorie nebo skupiny předmětů'),
                 ),
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'en',
                         'value' => 'that class of which this subject is a particular example and member',
                 ),
         ],
         'id' => 'P31',
         'labels' => [
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'cs',
                         'value' => decode_utf8('instance (čeho)'),
                 ),
                 Wikibase::Datatype::Value::Monolingual->new(
                         'language' => 'en',
                         'value' => 'instance of',
                 ),
         ],
         'page_id' => 3918489,
         'statements' => [
                 $statement1,
         ],
         'title' => 'Property:P31',
 );

 # Get structure.
 my $struct_hr = obj2struct($obj, 'http://test.wikidata.org/entity/');

 # Dump to output.
 p $struct_hr;

 # Output:
 # {
 #     aliases        {
 #         cs   [
 #             [0] {
 #                     language   "cs",
 #                     value      "je"
 #                 }
 #         ],
 #         en   [
 #             [0] {
 #                     language   "en",
 #                     value      "is a"
 #                 },
 #             [1] {
 #                     language   "en",
 #                     value      "is an"
 #                 }
 #         ]
 #     },
 #     claims         {
 #         P31   [
 #             [0] {
 #                     mainsnak   {
 #                         datatype    "wikibase-item",
 #                         datavalue   {
 #                             type    "wikibase-entityid",
 #                             value   {
 #                                 entity-type   "item",
 #                                 id            "Q18616576",
 #                                 numeric-id    18616576
 #                             }
 #                         },
 #                         property    "P31",
 #                         snaktype    "value"
 #                     },
 #                     rank       "normal",
 #                     type       "statement"
 #                 }
 #         ]
 #     },
 #     datatype       "wikibase-item",
 #     descriptions   {
 #         cs   {
 #             language   "cs",
 #             value      "tato položka je jedna konkrétní věc (exemplář, příklad) patřící do této třídy, kategorie nebo skupiny předmětů"
 #         },
 #         en   {
 #             language   "en",
 #             value      "that class of which this subject is a particular example and member"
 #         }
 #     },
 #     id             "P31",
 #     labels         {
 #         cs   {
 #             language   "cs",
 #             value      "instance (čeho)"
 #         },
 #         en   {
 #             language   "en",
 #             value      "instance of"
 #         }
 #     },
 #     ns             120,
 #     pageid         3918489,
 #     title          "Property:P31",
 #     type           "property"
 # }

EXAMPLE2

 use strict;
 use warnings;

 use Data::Printer;
 use Unicode::UTF8 qw(decode_utf8);
 use Wikibase::Datatype::Struct::Property qw(struct2obj);

 # Item structure.
 my $struct_hr = {
         'aliases' => {
                 'cs' => [{
                         'language' => 'cs',
                         'value' => 'je',
                 }],
                 'en' => [{
                         'language' => 'en',
                         'value' => 'is a',
                 }, {
                         'language' => 'en',
                         'value' => 'is an',
                 }],
         },
         'claims' => {
                 'P31' => [{
                         'mainsnak' => {
                                 'datatype' => 'wikibase-item',
                                 'datavalue' => {
                                         'type' => 'wikibase-entityid',
                                         'value' => {
                                                 'entity-type' => 'item',
                                                 'id' => 'Q18616576',
                                                 'numeric-id' => 18616576,
                                         },
                                 },
                                 'property' => 'P31',
                                 'snaktype' => 'value',
                         },
                         'rank' => 'normal',
                         'type' => 'statement',
                 }],
         },
         'datatype' => 'wikibase-item',
         'descriptions' => {
                 'cs' => {
                         'language' => 'cs',
                         'value' => decode_utf8('tato položka je jedna konkrétní věc (exemplář, příklad) patřící do této třídy, kategorie nebo skupiny předmětů'),
                 },
                 'en' => {
                         'language' => 'en',
                         'value' => 'that class of which this subject is a particular example and member',
                 },
         },
         'id' => 'P31',
         'labels' => {
                 'cs' => {
                         'language' => 'cs',
                         'value' => decode_utf8('instance (čeho)'),
                 },
                 'en' => {
                         'language' => 'en',
                         'value' => 'instance of',
                 },
         },
         'ns' => 120,
         'pageid' => 3918489,
         'title' => 'Property:P31',
         'type' => 'property',
 };

 # Get object.
 my $obj = struct2obj($struct_hr);

 # Print out.
 p $obj;

 # Output:
 # Wikibase::Datatype::Property  {
 #     parents: Mo::Object
 #     public methods (8):
 #         BUILD
 #         Error::Pure:
 #             err
 #         List::Util:
 #             none
 #         Mo::utils:
 #             check_array_object, check_number, check_number_of_items, check_required
 #         Readonly:
 #             Readonly
 #     private methods (0)
 #     internals: {
 #         aliases        [
 #             [0] Wikibase::Datatype::Value::Monolingual,
 #             [1] Wikibase::Datatype::Value::Monolingual,
 #             [2] Wikibase::Datatype::Value::Monolingual
 #         ],
 #         datatype       "wikibase-item",
 #         descriptions   [
 #             [0] Wikibase::Datatype::Value::Monolingual,
 #             [1] Wikibase::Datatype::Value::Monolingual
 #         ],
 #         id             "P31",
 #         labels         [
 #             [0] Wikibase::Datatype::Value::Monolingual,
 #             [1] Wikibase::Datatype::Value::Monolingual
 #         ],
 #         ns             120,
 #         page_id        3918489,
 #         statements     [
 #             [0] Wikibase::Datatype::Statement
 #         ],
 #         title          "Property:P31"
 #     }
 # }

DEPENDENCIES

Error::Pure, Exporter, Readonly, Wikibase::Datatype::Item, Wikibase::Datatype::Reference, Wikibase::Datatype::Struct::Language, Wikibase::Datatype::Struct::Statement, Wikibase::Datatype::Struct::Value::Monolingual.

SEE ALSO

Wikibase::Datatype::Struct

Wikibase structure serialization.

Wikibase::Datatype::Item

Wikibase item datatype.

REPOSITORY

https://github.com/michal-josef-spacek/Wikibase-Datatype-Struct

AUTHOR

Michal Josef Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

© 2020-2022 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.09

cpanm Wikibase::Datatype::Struct

perl -MCPAN -e shell
install Wikibase::Datatype::Struct