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Steps to replace an authoritative label via SPARQL:
Find all the subjects with the matching triple pattern,
and replace the matched triples with the INSERT triple pattern.
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| Code Block |
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INSERT {
<lcsh:sh123456> madsrdf:hasVariant _:v .
_:v a madsrdf:Variant .
_:v madsrdf:variantLabel "Dog catcher" .
}
WHERE {
<lcsh:sh123456> madsrdf:authoritativeLabel "Dog snatcher"
} |
Delete an LCSH resource:
1) Delete related component list. Thanks to: https://afs.github.io/rdf-lists-sparql
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| Code Block |
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DELETE {
?z rdf:first ?head ; rdf:rest ?tail .
}
WHERE {
<lcsh:sh123456> madsrdf:elementList ?list
?list rdf:rest* ?z .
?z rdf:first ?head ;
rdf:rest ?tail .
}; |
3)
# Delete related variant elements list.
# Thanks to: https://afs.github.io/rdf-lists-sparql
| Code Block |
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DELETE { |
...
?z rdf:first ?head ; rdf:rest ?tail . |
...
} |
...
WHERE { |
...
<lcsh:sh123456> madsrdf:hasVariant ?v . |
...
?v madsrdf:elementList ?list |
...
?list rdf:rest* ?z . |
...
?z rdf:first ?head ; |
...
rdf:rest ?tail . |
...
}; |
4)
# Delete related resources identified with blank nodes.
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DELETE { |
...
?o ?p1 ?o1 . |
...
?o1 ?p2 ?o2 . |
...
} |
...
WHERE { |
...
<lcsh:sh123456> ?p ?o . |
...
FILTER( isBlank(?o) ) . |
...
?o ?p1 ?o1 . |
...
OPTIONAL { |
...
FILTER( isBlank(?o1) ) . |
...
?o1 ?p2 ?o2 . |
...
} |
...
} |
5)
# Delete triples that link to deleted resource
# . NB: If ?s is a blank node, it may be because this Thing is a member of a list. That's just a plain problem.
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DELETE { |
...
?s ?p <lcsh:sh123456> . |
...
} |
...
WHERE { |
...
?s ?p <lcsh:sh123456> . |
...
FILTER( isIRI(?s) ) . |
...
} |
56)
# Delete triples where the subject is the resource's URI.
| Code Block |
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DELETE { |
...
<lcsh:sh123456> ?p ?o . |
...
} |
...
WHERE { |
...
<lcsh:sh123456> ?p ?o . |
...
} |
Deprecate a resource.Removes the Authority type and replaces it with Deprecated.
By rights, there are so many changes that it would be better
probably be better, in reality, to delete the resource and replace it.
1) Removes the Authority type and replaces it with Deprecated.
| Code Block |
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DELETE { |
...
<lcsh:sh123456> a madsrdf:Authority . |
...
} |
...
INSERT { |
...
<lcsh:sh123456> a madsrdf:DeprecatedAuthority . |
...
} |
...
WHERE { |
...
<lcsh:sh123456> a madsrdf:Authority . |
...
} |
2) Removes the authLabel and replaces with depLabel.2)
| Code Block |
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DELETE { |
...
<lcsh:sh123456> madsrdf:authoritativeLabel ?label . |
...
} |
...
INSERT { |
...
<lcsh:sh123456> madsrdf:deprecatedLabel ?label . |
...
} |
...
WHERE { |
...
<lcsh:sh123456> madsrdf:authoritativeLabel ?label . |
...
} |
Resource deprecated, but we have a replacement URI.
1)
Find where the old URI is used, replace it with the new one.
Not sure this can be done in one step; might need two steps. THe The first to add the new triple, the second to delete the old one.
| Code Block |
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INSERT { |
...
?s ?p <lcsh:new> |
...
} |
...
DELETE { |
...
?s ?p <lcsh:old> |
...
} |
...
WHERE { |
...
?s ?p <lcsh:old> |
...
} |
If "Deprecate a resource" above would better involve deleting the existing resource first, it would be best to replace the old URI with the new one in relationships first.
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