GRValidator Implemented E14

From Wiki of the E-Business and Web Science Research Group

Contents 1 Error 14 1.1 E14: Check that all PriceSpecifications have a currency value or currency interval attached 1.1.1 Validator Tool: Step # 23 1.1.2 Error Message 1.1.3 Potential Problem 1.1.4 Examples of Wrong Data 1.1.5 SPARQL Query

Error 14

E14: Check that all PriceSpecifications have a currency value or currency interval attached

Validator Tool: Step # 23

Error Message

All price specifications must specify a currency value, a minimun currency value or a macimun currency value.

Potential Problem

One offering can specify more than one price specification. Care must be taken that all price specifications inlcude a currency value, it can be a fix value by means of gr:hasCurrencyValue or a range by means of gr:hasMinCurrencyValue and/or gr:hasMaxCurrencyValue, otherwise offer will have no price attached.

Examples of Wrong Data

@prefix gr: <http://purl.org/goodrelations/v1#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix toy: <http://www.heppnetz.de/ontologies/examples/toy#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://www.heppnetz.de/ontologies/examples/gr> rdf:type owl:Ontology ;
	owl:imports <http://www.heppnetz.de/ontologies/examples/toy> ,
		<http://purl.org/goodrelations/v1> .
<http://www.heppnetz.de/ontologies/examples/gr#Offering_1> rdf:type gr:Offering .
<http://www.heppnetz.de/ontologies/examples/gr#UnitPriceSpecification_1> rdf:type gr:UnitPriceSpecification ;
	gr:hasCurrency "COP"^^<http://www.w3.org/2001/XMLSchema#string> ;
	gr:hasCurrencyValue "550.0"^^<http://www.w3.org/2001/XMLSchema#float> .
<http://www.heppnetz.de/ontologies/examples/gr#Offering_1> gr:hasPriceSpecification
<http://www.heppnetz.de/ontologies/examples/gr#UnitPriceSpecification_1> .
<http://www.heppnetz.de/ontologies/examples/gr#PaymentChargeSpecification_1> rdf:type gr:PaymentChargeSpecification ;
	gr:hasCurrency "COP"^^<http://www.w3.org/2001/XMLSchema#string> .
<http://www.heppnetz.de/ontologies/examples/gr#Offering_1> gr:hasPriceSpecification
<http://www.heppnetz.de/ontologies/examples/gr#PaymentChargeSpecification_1> .
<http://www.heppnetz.de/ontologies/examples/gr#DeliveryChargeSpecification_1> rdf:type gr:DeliveryChargeSpecification ;
	gr:hasMinCurrencyValue "100.0"^^<http://www.w3.org/2001/XMLSchema#float> .
<http://www.heppnetz.de/ontologies/examples/gr#Offering_1> gr:hasPriceSpecification
<http://www.heppnetz.de/ontologies/examples/gr#DeliveryChargeSpecification_1> .

SPARQL Query

PREFIX gr:<http://purl.org/goodrelations/v1#>

SELECT ?object
WHERE
{
 { #UnitPriceSpecification
    ?object a gr:UnitPriceSpecification .
    OPTIONAL { ?object gr:hasCurrencyValue ?value . }
    OPTIONAL { ?object gr:hasMinCurrencyValue ?min . }
    OPTIONAL { ?object gr:hasMaxCurrencyValue ?max . }
    FILTER ( !bound(?value) &&  !bound(?min) && !bound(?max) )
  } UNION { #PaymentChargeSpecification
    ?object a gr:PaymentChargeSpecification .
    OPTIONAL { ?object gr:hasCurrencyValue ?value . }
    OPTIONAL { ?object gr:hasMinCurrencyValue ?min . }
    OPTIONAL { ?object gr:hasMaxCurrencyValue ?max . }
    FILTER ( !bound(?value) &&  !bound(?min) && !bound(?max) )
  } UNION { #DeliveryChargeSpecification
    ?object a gr:DeliveryChargeSpecification .
    OPTIONAL { ?object gr:hasCurrencyValue ?value . }
    OPTIONAL { ?object gr:hasMinCurrencyValue ?min . }
    OPTIONAL { ?object gr:hasMaxCurrencyValue ?max . }
    FILTER ( !bound(?value) &&  !bound(?min) && !bound(?max) )
  }
}