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#' Attendance of LegCo Members
#'
#' Fetch attendance record of LegCo committee meetings
#'
#' This function corresponds to the \emph{Tattendance} data endpoint of the
#' Meeting Attendance Database.
#'
#' @param attn the attendance. \code{"p"} returns members who were present.
#' \code{"a"} returns members who were absent. \code{"all"} returns all
#' members. Defaults to \code{"all"}.
#'
#' @inheritParams hansard-db
#' @inheritParams meeting_schedule-db
#'
#' @seealso LegCo API documentation for the Attendance database:
#' \url{https://www.legco.gov.hk/odata/english/attendance-db.html}
#'
#' @examples
#' \donttest{
#' # Fetch members who were absent from the Subcommittee on Issues
#' # Relating to Bazaars meetings on October 13, 2017
#' x <- attendance(committee_id = 2704, from = "2017-10-13", to = "2017-10-13", attn = "a")
#' }
#'
#' @export
#'
attendance <- function(committee_id = NULL, meet_id = NULL, member_id = NULL,
attn = "all", from = '1900-01-01', to = Sys.Date(),
n = 1000, extra_param = NULL, count = FALSE, verbose = TRUE) {
query <- "TAttendance?$select=committee_id,meet_id,meeting_name_english,meeting_name_chinese,meeting_start_date_time,member_id,member_name_english,member_name_chinese,present_absent"
filter_args <- {}
if (!is.null(committee_id)) {
filter_args <- c(filter_args, .generate_filter("committee_id", committee_id))
}
if (!is.null(meet_id)) {
filter_args <- c(filter_args, .generate_filter("meet_id", meet_id))
}
if (!is.null(member_id)) {
filter_args <- c(filter_args, .generate_filter("member_id", member_id))
}
attn <- tolower(attn)
if (attn == "p") {
filter_args <- c(filter_args, "present_absent eq 'Present'")
} else if (attn == "a") {
filter_args <- c(filter_args, "present_absent eq 'Absent'")
}
from <- as.Date(from)
from <- paste0(format(from, "%Y-%m-%d"), "T00:00:00")
to <- as.Date(to)
to <- paste0(format(to, "%Y-%m-%d"), "T23:59:59")
filter_args <- c(filter_args, paste0("meeting_start_date_time ge datetime\'", from,
"\' and meeting_start_date_time le datetime\'", to, "\'"))
query <- paste0(query, "&$filter=", paste(filter_args, collapse = " and "))
if (!is.null(extra_param)) {
query <- paste0(query, extra_param)
}
df <- legco_api("attn", query, n, count, verbose)
if (!count) {
colnames(df) <-.unify_colnames(colnames(df)) # in utils-misc.R
}
df
}
#' @rdname attendance
#' @export
legco_attendance <- attendance
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