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# doi-crossref member
prefix_update <- function(doi, df) {
storr_init("_doi_prefixes")
ftdoi_doi_prefixes$set(
key = doi_prefix(doi),
value = list(prefix = doi_prefix(doi), member=df$member)
)
}
prefix_get <- function(doi) {
storr_init("_doi_prefixes")
tryCatch(ftdoi_doi_prefixes$get(key = doi_prefix(doi)),
error=function(e) e)
}
key_exists <- function(x) !inherits(x, "error") && (!is.null(x) && length(x) > 0)
doi_prefix <- function(doi) strsplit(doi, "/")[[1]][1]
prefix_list_keys <- function() {
storr_init("_doi_prefixes")
ftdoi_doi_prefixes$list()
}
# doi-url
url_update <- function(doi, url, content_type) {
storr_init("_urls")
if (!nzchar(as.character(url)) || is.null(url)) return()
if (!key_exists(url_get(doi, content_type))) {
ftdoi_urls$set(
key = paste(doi, content_type, sep = ":"),
value = list(url=url, content_type=content_type)
)
}
}
url_get <- function(doi, content_type = NULL) {
storr_init("_urls")
if (is.null(content_type)) {
keys <- grep(doi, ftdoi_urls$list(), value = TRUE)
lapply(keys, function(z) ftdoi_urls$get(z))
} else {
tryCatch(ftdoi_urls$get(key = paste(doi, content_type, sep = ":")),
error=function(e) e)
}
}
url_exists <- function(doi) {
storr_init("_urls")
keys <- ftdoi_urls$list()
any(grepl(doi, keys))
}
url_list_keys <- function() {
storr_init("_urls")
ftdoi_urls$list()
}
# doi-issn
doi_issn_update <- function(doi, issn) {
storr_init("_doi_issn")
if (!ftdoi_doi_issn$exists(doi)) {
ftdoi_doi_issn$set(key = doi, value = issn)
}
}
doi_issn_exists <- function(doi) ftdoi_doi_issn$exists(doi)
doi_issn_get <- function(doi) {
storr_init("_doi_issn")
tryCatch(ftdoi_doi_issn$get(key = doi), error=function(e) e)
}
doi_issn_list_keys <- function() {
storr_init("_doi_issn")
ftdoi_doi_issn$list()
}
# storr helper functions
storr_path <- function(x) file.path(ftdoi_cache$cache_path_get(), x)
storr_exists <- function(x) dir.exists(storr_path(x))
storr_create <- function(x) {
storr::storr_rds(file.path(ftdoi_cache$cache_path_get(), x),
mangle_key = TRUE)
}
storr_init <- function(x) {
if (!storr_exists(x)) storr_create(x)
}
ftdoi_doi_prefixes <- ftdoi_urls <- ftdoi_doi_issn <- NULL
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