NAME

Wikibase::Datatype::Struct::Value::Quantity - Wikibase quantity value structure serialization.

SYNOPSIS

            

              
              
use Wikibase::Datatype::Struct::Value::Quantity 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::Value::Quantity 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 quantity to object.

Returns Wikibase::Datatype::Value::Quantity instance.

ERRORS

            

              
              
obj2struct():
        Base URI is required.
        Object doesn't exist.
        Object isn't 'Wikibase::Datatype::Value::Quantity'.
struct2obj():
        Structure isn't for 'quantity' datatype.
            
          

EXAMPLE1

            

              
              
use strict;
use warnings;
use Data::Printer;
use Wikibase::Datatype::Value::Quantity;
use Wikibase::Datatype::Struct::Value::Quantity qw(obj2struct);
# Object.
my $obj = Wikibase::Datatype::Value::Quantity->new(
        'unit' => 'Q190900',
        'value' => 10,
);
# Get structure.
my $struct_hr = obj2struct($obj, 'http://test.wikidata.org/entity/');
# Dump to output.
p $struct_hr;
# Output:
# \ {
#     type    "quantity",
#     value   {
#         amount   "+10",
#         unit     "http://test.wikidata.org/entity/Q190900"
#     }
# }
            
          

EXAMPLE2

            

              
              
use strict;
use warnings;
use Wikibase::Datatype::Struct::Value::Quantity qw(struct2obj);
# Quantity structure.
my $struct_hr = {
        'type' => 'quantity',
        'value' => {
                'amount' => '+10',
                'unit' => 'http://test.wikidata.org/entity/Q190900',
        },
};
# Get object.
my $obj = struct2obj($struct_hr);
# Get type.
my $type = $obj->type;
# Get unit.
my $unit = $obj->unit;
# Get value.
my $value = $obj->value;
# Print out.
print "Type: $type\n";
if (defined $unit) {
        print "Unit: $unit\n";
}
print "Value: $value\n";
# Output:
# Type: quantity
# Unit: Q190900
# Value: 10
            
          

DEPENDENCIES

Error::Pure, Exporter, Readonly, URI, Wikibase::Datatype::Value::Property.

SEE ALSO

Wikibase::Datatype::Struct

Wikibase structure serialization.

Wikibase::Datatype::Value::Quantity

Wikibase quantity value 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

© 2020-2025 Michal Josef Špaček

BSD 2-Clause License

VERSION

0.14

cpanm Wikibase::Datatype::Struct

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