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#' Retrieve vote results on MP level for a specified vote
#'
#' A function for retrieving vote results from a specific vote on MP level. Vote data are only available from the 2011-2012 session.
#' Needs some preprocessing for use with rollcall packages, such as \link[pscl]{ideal}.
#'
#' @usage get_result_vote(voteid = NA, good_manners = 0)
#'
#' @param voteid Character string indicating the id of the vote to request all votes from
#' @param good_manners Integer. Seconds delay between calls when making multiple calls to the same function
#'
#' @return A data.frame with the following variables:
#'
#' | | |
#' |:----------------------|:-------------------------------------------------------------------------|
#' | **response_date** | Date of data retrieval |
#' | **version** | Data version from the API |
#' | **vote_id** | Id of vote |
#' | **mp_id** | MP id |
#' | **party_id** | Party id |
#' | **vote** | Vote: for, mot (against), ikke_tilstede (absent) |
#' | **permanent_sub_for** | Id of the MP originally holding the seat, if the substitute is permanent |
#' | **sub_for** | Id of the MP originally holding the seat |
#'
#' @md
#'
#' @seealso [get_decision_votes] [get_proposal_votes] [get_vote] [get_mp_bio]
#'
#' @examples
#'
#' \dontrun{
#'
#' v <- get_result_vote(12345)
#' table(v$vote)
#'
#' p <- get_proposal_votes(12345)
#'
#' stringr::str_replace_all(p$proposal_vote$proposal_text,
#' "\\<(.*)\\>|\\r\\n", "") %>%
#' stringr::str_trim()
#' }
#'
#' @import rvest httr
#'
#' @export
#'
get_result_vote <- function(voteid = NA, good_manners = 0){
url <- paste0("https://data.stortinget.no/eksport/voteringsresultat?voteringid=", voteid)
base <- GET(url)
resp <- http_type(base)
if(resp != "text/xml") stop(paste0("Response of ", url, " is not text/xml."), call. = FALSE)
status <- http_status(base)
if(status$category != "Success") stop(paste0("Response of ", url, " returned as '", status$message, "'"), call. = FALSE)
tmp <- read_html(base)
if(identical(tmp %>% html_elements("representant_voteringsresultat") %>% html_text(), character()) == FALSE){
tmp2 <- data.frame(response_date = tmp %>% html_elements("voteringsresultat_oversikt > respons_dato_tid") %>% html_text(),
version = tmp %>% html_elements("voteringsresultat_oversikt > versjon") %>% html_text(),
vote_id = tmp %>% html_elements("voteringsresultat_oversikt > votering_id") %>% html_text(),
mp_id = tmp %>% html_elements("representant_voteringsresultat > representant > id") %>% html_text(),
party_id = tmp %>% html_elements("representant_voteringsresultat > representant > parti > id") %>% html_text(),
vote = tmp %>% html_elements("representant_voteringsresultat > votering") %>% html_text())
sub_holder <- lapply(tmp %>% html_elements("representant_voteringsresultat"), function(x){
x %>% html_elements("fast_vara_for > id") %>% html_text()
})
tmp2$permanent_sub_for <- unlist(sapply(sub_holder, function(x) ifelse(identical(x, character()), NA, x)))
sub_holder <- lapply(tmp %>% html_elements("representant_voteringsresultat"), function(x){
x %>% html_elements("vara_for > id") %>% html_text()
})
tmp2$sub_for <- unlist(sapply(sub_holder, function(x) ifelse(identical(x, character()), NA, x)))
} else {
tmp2 <- data.frame(response_date = tmp %>% html_elements("voteringsresultat_oversikt > respons_dato_tid") %>% html_text(),
version = tmp %>% html_elements("voteringsresultat_oversikt > versjon") %>% html_text(),
vote_id = tmp %>% html_elements("voteringsresultat_oversikt > votering_id") %>% html_text(),
mp_id = NA,
party_id = NA,
vote = NA,
permanent_sub_for = NA,
sub_for = NA)
}
Sys.sleep(good_manners)
return(tmp2)
}
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