README

NAME
    Wikibase::Datatype::Query - Query class on Wikibase item.

SYNOPSIS
     use Wikibase::Datatype::Query;

     my $obj = Wikibase::Datatype::Query->new;
     my $res = $obj->query($obj, $property);
     my $res = $obj->query_item($item_obj, $property);

METHODS
  "new"
     my $obj = Wikibase::Datatype::Query->new;

    Constructor.

    *   "deprecated"

        Flag which controls query of deprecated values. Zero (0) means no
        deprecated values in result.

        Default value is 0.

    Returns instance of object.

  "query"
     my $res = $obj->query($obj, $property);

    Query Wikibase::Datatype object for value.

    Returns value or undef.

  "query_item"
     my $res = $obj->query($item_obj, $property);

    Query Wikibase::Datatype::Item item for value.

    Returns value or undef.

ERRORS
     new():
             From Class::Utils::set_params():
                     Unknown parameter '%s'.

     query():
             Parameter 'item' is required.
             Parameter 'item' must be a 'Wikibase::Datatype::Item' object.

     query_item():
             Parameter 'item' is required.
             Parameter 'item' must be a 'Wikibase::Datatype::Item' object.

EXAMPLE
     use strict;
     use warnings;

     use Test::Shared::Fixture::Wikibase::Datatype::Item::Wikidata::Dog;
     use Wikibase::Datatype::Query;

     my $obj = Wikibase::Datatype::Query->new;

     my $item = Test::Shared::Fixture::Wikibase::Datatype::Item::Wikidata::Dog->new;

     my $ret = $obj->query_item($item, 'P31');

     print "Query for P31 property on Test::Shared::Fixture::Wikibase::Datatype::Item::Wikidata::Dog:\n";
     print $ret."\n";

     # Output like:
     # Query for P31 property on Test::Shared::Fixture::Wikibase::Datatype::Item::Wikidata::Dog:
     # Q55983715

DEPENDENCIES
    Class::Utils, Error::Pure, Scalar::Util.

SEE ALSO
    Wikibase::Datatype
        Wikibase datatypes.

REPOSITORY
    <https://github.com/michal-josef-spacek/Wikibase-Datatype-Query>

AUTHOR
    Michal Josef Špaček <mailto:skim@cpan.org>

    <http://skim.cz>

LICENSE AND COPYRIGHT
    © 2022-2023 Michal Josef Špaček

    BSD 2-Clause License

VERSION
    0.04