NAME

Wikibase::Datatype::Property - Wikibase property datatype.

SYNOPSIS

 use Wikibase::Datatype::Property;

 my $obj = Wikibase::Datatype::Property->new(%params);
 my $aliases_ar = $obj->aliases;
 my $datatype = $obj->datatype;
 my $descriptions_ar = $obj->descriptions;
 my $id = $obj->id;
 my $labels_ar = $obj->labels;
 my $lastrevid = $obj->lastrevid;
 my $modified = $obj->modified;
 my $ns = $obj->ns;
 my $page_id = $obj->page_id;
 my $statements_ar = $obj->statements;
 my $title = $obj->title;

DESCRIPTION

This datatype is property class for representing property.

METHODS

new

 my $obj = Wikibase::Datatype::Property->new(%params);

Constructor.

Returns instance of object.

  • aliases

    Item aliases. Multiple per language. Reference to array with Wikibase::Datatype::Value::Monolingual instances. Parameter is optional.

  • datatype

    Type of data. Parameter is required.

     Possible datatypes are (datavalue instance in parenthesis):
     - commonsMedia (Wikibase::Datatype::Value::String)
     - external-id (Wikibase::Datatype::Value::String)
     - geo-shape (Wikibase::Datatype::Value::String)
     - globe-coordinate (Wikibase::Datatype::Value::Globecoordinate)
     - math (Wikibase::Datatype::Value::String)
     - monolingualtext (Wikibase::Datatype::Value::Monolingual)
     - musical-notation (Wikibase::Datatype::Value::String)
     - quantity (Wikibase::Datatype::Value::Quantity)
     - string (Wikibase::Datatype::Value::String)
     - tabular-data (Wikibase::Datatype::Value::String)
     - time (Wikibase::Datatype::Value::Time)
     - url (Wikibase::Datatype::Value::String)
     - wikibase-item (Wikibase::Datatype::Value::Item)
     - wikibase-property (Wikibase::Datatype::Value::Property)
  • descriptions

    Item descriptions. One per language. Reference to array with Wikibase::Datatype::Value::Monolingual instances. Parameter is optional.

  • id

    Id. Parameter is optional.

  • labels

    Item descriptions. One per language. Reference to array with Wikibase::Datatype::Value::Monolingual instances. Parameter is optional.

  • lastrevid

    Last revision ID. Parameter is optional.

  • modified

    Date of modification. Parameter is optional.

  • ns

    Namespace. Default value is 120.

  • page_id

    Page id. Numeric value. Parameter is optional.

  • statements

    Item statements. Reference to array with Wikibase::Datatype::Statement instances. Parameter is optional.

  • title

    Item title. Parameter is optional.

aliases

 my $aliases_ar = $obj->aliases;

Get aliases.

Returns reference to array with Wikibase::Datatype::Value::Monolingual instances.

datatype

 my $datatype = $obj->datatype;

Get data type.

Returns string.

descriptions

 my $descriptions_ar = $obj->descriptions;

Get descriptions.

Returns reference to array with Wikibase::Datatype::Value::Monolingual instances.

id

 my $id = $obj->id;

Get id.

Returns string.

labels

 my $labels_ar = $obj->labels;

Get labels.

Returns reference to array with Wikibase::Datatype::Value::Monolingual instances.

lastrevid

 my $lastrevid = $obj->lastrevid;

Get last revision ID.

Returns string.

modified

 my $modified = $obj->modified;

Get date of modification.

Returns string.

ns

 my $ns = $obj->ns;

Get namespace.

Returns number.

page_id

 my $page_id = $obj->page_id;

Get page id.

Returns number.

statements

 my $statements_ar = $obj->statements;

Get statements.

Returns reference to array with Wikibase::Datatype::Statement instances.

title

 my $title = $obj->title;

Get title.

Returns string.

ERRORS

 new():
         From Mo::utils::check_array_object():
                 Alias isn't 'Wikibase::Datatype::Value::Monolingual' object.
                 Description isn't 'Wikibase::Datatype::Value::Monolingual' object.
                 Label isn't 'Wikibase::Datatype::Value::Monolingual' object.
                 Parameter 'aliases' must be a array.
                 Parameter 'descriptions' must be a array.
                 Parameter 'labels' must be a array.
                 Parameter 'statements' must be a array.
                 Statement isn't 'Wikibase::Datatype::Statement' object.
         From Mo::utils::check_page_id():
                 Parameter 'page_id' must a number.
         From Mo::utils::check_number_of_items():
                 Description for language '%s' has multiple values.
                 Label for language '%s' has multiple values.
         From Mo::utils::check_required():
                 Parameter 'datatype' is required.
         Parameter 'datatype' = '%s' isn't supported.

EXAMPLE

 use strict;
 use warnings;

 use Unicode::UTF8 qw(decode_utf8 encode_utf8);
 use Wikibase::Datatype::Property;
 use Wikibase::Datatype::Reference;
 use Wikibase::Datatype::Sitelink;
 use Wikibase::Datatype::Snak;
 use Wikibase::Datatype::Statement;
 use Wikibase::Datatype::Value::Item;
 use Wikibase::Datatype::Value::Monolingual;
 use Wikibase::Datatype::Value::String;
 use Wikibase::Datatype::Value::Time;

 # Object.
 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 item.
 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',
 );

 # Print out.
 print "Title: ".$obj->title."\n";
 print 'Id: '.$obj->id."\n";
 print 'Data type: '.$obj->datatype."\n";
 print 'Page id: '.$obj->page_id."\n";
 print "Labels:\n";
 foreach my $label (sort { $a->language cmp $b->language } @{$obj->labels}) {
         print "\t".encode_utf8($label->value).' ('.$label->language.")\n";
 }
 print "Descriptions:\n";
 foreach my $desc (sort { $a->language cmp $b->language } @{$obj->descriptions}) {
         print "\t".encode_utf8($desc->value).' ('.$desc->language.")\n";
 }
 print "Aliases:\n";
 foreach my $alias (sort { $a->language cmp $b->language } @{$obj->aliases}) {
         print "\t".encode_utf8($alias->value).' ('.$alias->language.")\n";
 }
 print "Statements:\n";
 foreach my $statement (@{$obj->statements}) {
         print "\tStatement:\n";
         print "\t\t".$statement->snak->property.' -> '.$statement->snak->datavalue->value."\n";
 }

 # Output:
 # Title: Property:P31
 # Id: P31
 # Data type: wikibase-item
 # Page id: 3918489
 # Labels:
 #         instance (čeho) (cs)
 #         instance of (en)
 # Descriptions:
 #         tato položka je jedna konkrétní věc (exemplář, příklad) patřící do této třídy, kategorie nebo skupiny předmětů (cs)
 #         that class of which this subject is a particular example and member (en)
 # Aliases:
 #         je (cs)
 #         is a (en)
 #         is an (en)
 # Statements:
 #         Statement:
 #                 P31 -> Q18616576

DEPENDENCIES

Error::Pure, List::Util, Mo, Mo:utils, Readonly.

SEE ALSO

Wikibase::Datatype

Wikibase datatypes.

REPOSITORY

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

AUTHOR

Michal Josef Špaček mailto:skim@cpan.org

http://skim.cz

LICENSE AND COPYRIGHT

© 2020-2022 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.23