Hi German,
see the attached example. The key is to define a new helper function
which takes two arguments and has a SPARQLMotion script as its body.
The new function can then be inserted into any other SM script from the
Functions section, as a lego block.
Using SPIN constructors would not have the desired effect because it
would be at module-creation time, not at run-time (which is what I
believe you want).
HTH
Holger
On 7/06/2016 21:25, german.pete...@gmail.com wrote:
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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its base technologies such as SPARQLMotion, SPARQL Web Pages and SPIN.
To post to this group, send email to topbraid-users@googlegroups.com
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# baseURI: http://example.org/sm/GoogleSpreadsheetCSV
# imports: http://topbraid.org/sparqlmotionfunctions
# imports: http://topbraid.org/sparqlmotionlib-tbc
# prefix: gocsv
@prefix arg: <http://spinrdf.org/arg#> .
@prefix gocsv: <http://example.org/sm/GoogleSpreadsheetCSV#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sm: <http://topbraid.org/sparqlmotion#> .
@prefix sml: <http://topbraid.org/sparqlmotionlib#> .
@prefix sp: <http://spinrdf.org/sp#> .
@prefix spin: <http://spinrdf.org/spin#> .
@prefix spl: <http://spinrdf.org/spl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
<http://example.org/sm/GoogleSpreadsheetCSV>
rdf:type owl:Ontology ;
owl:imports <http://topbraid.org/sparqlmotionfunctions> ;
owl:imports <http://topbraid.org/sparqlmotionlib-tbc> ;
owl:versionInfo "Created with TopBraid Composer" ;
.
gocsv:ImportFileFromURL_1
rdf:type sml:ImportTextFromURL ;
sm:next gocsv:ImportGoogleSpreadsheet_Return ;
sm:outputVariable "result" ;
sml:url
"https://docs.google.com/spreadsheets/d/{?documentId}//export?format=csv&gid={?sheetId}";
;
rdfs:label "Import file from URL 1" ;
.
gocsv:ImportGoogleSpreadsheet
rdf:type sm:Function ;
spin:constraint [
rdf:type spl:Argument ;
spl:predicate arg:documentId ;
spl:valueType xsd:string ;
sm:next gocsv:ImportFileFromURL_1 ;
] ;
spin:constraint [
rdf:type spl:Argument ;
spl:predicate arg:sheetId ;
spl:valueType xsd:string ;
sm:next gocsv:ImportFileFromURL_1 ;
] ;
sm:returnModule gocsv:ImportGoogleSpreadsheet_Return ;
rdfs:subClassOf sm:Functions ;
.
gocsv:ImportGoogleSpreadsheetTest
rdf:type gocsv:ImportGoogleSpreadsheet ;
arg:documentId "MyDoc" ;
arg:sheetId "42" ;
sm:outputVariable "result" ;
rdfs:label "Import google spreadsheet test" ;
.
gocsv:ImportGoogleSpreadsheet_Return
rdf:type sml:ReturnNode ;
sm:nodeX 293 ;
sm:nodeY 268 ;
sml:result [
sp:varName "result" ;
] ;
.
arg:documentId
rdf:type rdf:Property ;
rdfs:subPropertyOf sp:arg ;
.
arg:sheetId
rdf:type rdf:Property ;
rdfs:subPropertyOf sp:arg ;
.
