58 lines
1.2 KiB
R
58 lines
1.2 KiB
R
library("SPARQL")
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library("stringi")
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### Gets the bibliographicCitations which are currently in the db ##################
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read_current_geoera_lit_db <- function() {
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## http verwenden - https funktioniert nicht ##
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endpoint = "http://resource.geolba.ac.at/PoolParty/sparql/geoera"
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query <-
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"PREFIX skos:<http://www.w3.org/2004/02/skos/core#>
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PREFIX dcterms:<http://purl.org/dc/terms/>
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select *
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where {
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?uri a skos:Concept; skos:prefLabel ?L; dcterms:bibliographicCitation ?citation .
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filter(regex(str(?uri),\"/ref/\")) filter(lang(?L)=\"en\")
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optional {?uri dcterms:source ?downloadLink}
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}
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order by ?L
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"
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qd <- SPARQL(endpoint, query)
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inDB <- qd$results
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for (j in 1:length (inDB[1, ])) {
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for (i in 1:length(inDB[, j])) {
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Encoding(inDB[i, j]) <- "UTF-8"
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}
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}
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pfad <- paste("data/inDB-", format(Sys.Date(), "%Y_%m_%d"), ".xlsx", sep="")
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write_xlsx(inDB, pfad)
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}
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get_current_geoera_lit_db <- function() {
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pfad <- paste("data/inDB-", format(Sys.Date(), "%Y_%m_%d"), ".xlsx", sep="")
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if (file.exists(pfad)) {
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inDB <- read_excel(pfad)
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return(inDB)
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}
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else {
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read_current_geoera_lit_db()
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get_current_geoera_lit_db()
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}
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}
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