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#' ckan_tag class helpers
#'
#' @export
#' @param x Variety of things, character, list, or ckan_tag class object
#' @param ... Further args passed on to [tag_show()] if character given
#' @examples \dontrun{
#' ckanr_setup(url = "https://demo.ckan.org/",
#' key = getOption("ckan_demo_key"))
#'
#' (tags <- tag_search(query = 'ta'))
#' tags[[3]]
#'
#' # create item class from only an item ID
#' as.ckan_tag(tags[[3]]$id)
#'
#' # gives back itself
#' (x <- as.ckan_tag(tags[[3]]$id))
#' as.ckan_tag(x)
#' }
as.ckan_tag <- function(x, ...) UseMethod("as.ckan_tag")
#' @export
as.ckan_tag.character <- function(x, ...) get_tag(x, ...)
#' @export
as.ckan_tag.ckan_tag <- function(x, ...) x
#' @export
as.ckan_tag.list <- function(x, ...) structure(x, class = "ckan_tag")
#' @export
#' @rdname as.ckan_tag
is.ckan_tag <- function(x) inherits(x, "ckan_tag")
#' @export
print.ckan_tag <- function(x, ...) {
cat(paste0("<CKAN Tag> ", x$id), "\n")
cat(" Name: ", x$name, "\n", sep = "")
cat(" Display name: ", x$display_name, "\n", sep = "")
cat(" Vocabulary id: ", x$vocabulary_id, "\n", sep = "")
cat(" No. Packages: ", length(x$packages), "\n", sep = "")
cat(" Packages (up to 5): ", sift_res(x$packages), "\n", sep = "")
}
get_tag <- function(id, url = get_default_url(), key = get_default_key(),
...) {
res <- ckan_GET(url, 'tag_show', list(id = id), key = key, opts = list(...))
as_ck(jsl(res), "ckan_tag")
}
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