cacontology-training:CertificationValidationShape leaf node

@prefix cacontology-training: <https://cacontology.projectvic.org/training#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
cacontology-training:CertificationValidationShape a sh:NodeShape ;
    rdfs:label "Certification Validation Shape"@en ;
    rdfs:comment "Validates that certifications have certifying bodies."@en ;
    sh:sparql [ sh:message "Professional certification should have certifying body."@en ;
            sh:select """
            SELECT $this
            WHERE {
                $this a cacontology-training:ProfessionalCertification .
                FILTER NOT EXISTS {
                    $this cacontology-training:certifiedBy ?body .
                    ?body a cacontology-training:CertificationBody .
                }
            }
        """ ] ;
    sh:targetClass cacontology-training:ProfessionalCertification .