Hi,
I would like to to specialize existing SM module, by binding some of its
arguments. More concretely, i would like to create module
my:ImportGoogleSpreadsheetCSV by extending module sml:ImportFileFromURL.
my:ImportGoogleSpreadsheetCSV should have 2 additional parameters --
documentId and sheetId. This is my definition of the module :
my:ImportGoogleSpreadsheetCSV
rdf:type sm:Module ;
spin:constraint [
rdf:type spl:Argument ;
spl:predicate sml:documentId ;
spl:valueType xsd:string ;
rdfs:comment "Document Id."^^xsd:string ;
] ;
spin:constraint [
rdf:type spl:Argument ;
spl:predicate sml:sheetId ;
spl:valueType xsd:string ;
rdfs:comment "Spreadsheet id."^^xsd:string ;
] ;
spin:constructor [
rdf:type sp:Construct ;
sp:templates (
[
sp:object [
sp:varName "url"^^xsd:string ;
] ;
sp:predicate sml:url ;
sp:subject spin:_this ;
]
) ;
sp:text """CONSTRUCT {
?this sml:url ?url .
}
WHERE {
BIND(CONCAT(\"https://docs.google.com/spreadsheets/d/\";, ?documentId,
\"/export?format=csv&gid=\", ?sheetId) as ?url)
}"""^^xsd:string ;
sp:where (
[
rdf:type sp:Bind ;
sp:expression [
rdf:type sp:concat ;
sp:arg1 "https://docs.google.com/spreadsheets/d/"; ;
sp:arg2 [
sp:varName "documentId"^^xsd:string ;
] ;
sp:arg3 "/export?format=csv&gid=" ;
sp:arg4 [
sp:varName "sheetId"^^xsd:string ;
] ;
] ;
sp:variable [
sp:varName "url"^^xsd:string ;
] ;
]
) ;
] ;
rdfs:label "Import CSV from Google Spreadsheet"^^xsd:string ;
rdfs:subClassOf sml:ImportFileFromURL ;
.
Idea is to use CONCAT function to bind ?url in spin:constructor. However,
It gives me error: "Operation failed:
org.topbraid.spin.sparqlmotion.modules.SMException: the string value is
missing for url". This is clearly because sml:ImportFileFromURL module has
"sml:url" argument which is required.
It there any way to disable required argument ? Is it correct way to do it
? Are there any other options to do it ?
Cheers,
Peter
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