NAME
Wikibase::Datatype::Statement - Wikibase statement datatype.
SYNOPSIS
my
$obj
= Wikibase::Datatype::Statement->new(
%params
);
my
$id
=
$obj
->id;
my
$property_snaks_ar
=
$obj
->property_snaks;
my
$rank
=
$obj
->rank;
my
$referenes_ar
=
$obj
->references;
my
$snak
=
$obj
->snak;
DESCRIPTION
This datatype is statement class for representing claim.
METHODS
new
my
$obj
= Wikibase::Datatype::Statement->new(
%params
);
Constructor.
Returns instance of object.
id
Id of statement. Parameter is optional.
property_snaks
Property snaks. Parameter is reference to hash with Wikibase::Datatype::Snak instances. Parameter is optional. Default value is [].
rank
Rank value. Parameter is string with these possible values: normal, preferred and deprecated Default value is 'normal'.
references
List of references. Parameter is reference to hash with Wikibase::Datatype::Reference instances. Parameter is optional. Default value is [].
snak
Main snak. Parameter is Wikibase::Datatype::Snak instance. Parameter is required.
id
my
$id
=
$obj
->id;
Get id of statement.
Returns string.
property_snaks
my
$property_snaks_ar
=
$obj
->property_snaks;
Get property snaks.
Returns reference to array with Wikibase::Datatype::Snak instances.
rank
my
$rank
=
$obj
->rank;
Get rank value.
references
my
$referenes_ar
=
$obj
->references;
Get references.
Returns reference to array with Wikibase::Datatype::Reference instance.
snak
my
$snak
=
$obj
->snak;
Get main snak.
Returns Wikibase::Datatype::Snak instance.
ERRORS
new():
From Mo::utils::check_array_object():
Parameter
'property_snaks'
must be a array.
Parameter
'references'
must be a array.
Property snak isn
't '
Wikibase::Datatype::Snak' object.
Reference isn
't '
Wikibase::Datatype::Reference' object.
From Mo::utils::check_isa():
Parameter
'snak'
must be a
'Wikibase::Datatype::Snak'
object.
From Mo::utils::check_required():
Parameter
'snak'
is required.
Parameter
'rank'
has
bad value. Possible
values
are normal, preferred, deprecated.
EXAMPLE
use
strict;
use
warnings;
# Object.
my
$obj
= Wikibase::Datatype::Statement->new(
'id'
=>
'Q123$00C04D2A-49AF-40C2-9930-C551916887E8'
,
# instance of (P31) human (Q5)
'snak'
=> Wikibase::Datatype::Snak->new(
'datatype'
=>
'wikibase-item'
,
'datavalue'
=> Wikibase::Datatype::Value::Item->new(
'value'
=>
'Q5'
,
),
'property'
=>
'P31'
,
),
'property_snaks'
=> [
# of (P642) alien (Q474741)
Wikibase::Datatype::Snak->new(
'datatype'
=>
'wikibase-item'
,
'datavalue'
=> Wikibase::Datatype::Value::Item->new(
'value'
=>
'Q474741'
,
),
'property'
=>
'P642'
,
),
],
'references'
=> [
Wikibase::Datatype::Reference->new(
'snaks'
=> [
# stated in (P248) Virtual International Authority File (Q53919)
Wikibase::Datatype::Snak->new(
'datatype'
=>
'wikibase-item'
,
'datavalue'
=> Wikibase::Datatype::Value::Item->new(
'value'
=>
'Q53919'
,
),
'property'
=>
'P248'
,
),
# VIAF ID (P214) 113230702
Wikibase::Datatype::Snak->new(
'datatype'
=>
'external-id'
,
'datavalue'
=> Wikibase::Datatype::Value::String->new(
'value'
=>
'113230702'
,
),
'property'
=>
'P214'
,
),
# retrieved (P813) 7 December 2013
Wikibase::Datatype::Snak->new(
'datatype'
=>
'time'
,
'datavalue'
=> Wikibase::Datatype::Value::Time->new(
'value'
=>
'+2013-12-07T00:00:00Z'
,
),
'property'
=>
'P813'
,
),
],
),
],
);
# Print out.
'Id: '
.
$obj
->id.
"\n"
;
'Claim: '
.
$obj
->snak->property.
' -> '
.
$obj
->snak->datavalue->value.
"\n"
;
"Qualifiers:\n"
;
foreach
my
$property_snak
(@{
$obj
->property_snaks}) {
"\t"
.
$property_snak
->property.
' -> '
.
$property_snak
->datavalue->value.
"\n"
;
}
"References:\n"
;
foreach
my
$reference
(@{
$obj
->references}) {
"\tReference:\n"
;
foreach
my
$reference_snak
(@{
$reference
->snaks}) {
"\t\t"
.
$reference_snak
->property.
' -> '
.
$reference_snak
->datavalue->value.
"\n"
;
}
}
'Rank: '
.
$obj
->rank.
"\n"
;
# Output:
# Id: Q123$00C04D2A-49AF-40C2-9930-C551916887E8
# Claim: P31 -> Q5
# Qualifiers:
# P642 -> Q474741
# References:
# Reference:
# P248 -> Q53919
# P214 -> 113230702
# P813 -> +2013-12-07T00:00:00Z
# Rank: normal
DEPENDENCIES
Error::Pure, List::MoreUtils, 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
LICENSE AND COPYRIGHT
© 2020-2025 Michal Josef Špaček
BSD 2-Clause License
VERSION
0.37