mirror of
https://github.com/agdamsbo/REDCapCAST.git
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104 lines
3.1 KiB
R
104 lines
3.1 KiB
R
#' Download REDCap data
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#'
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#' Implementation of REDCap_split with a focused data acquisition approach using
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#' REDCapR::redcap_read and only downloading specified fields, forms and/or
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#' events using the built-in focused_metadata including some clean-up.
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#' Works with classical and longitudinal projects with or without repeating
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#' instruments.
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#' @param uri REDCap database API uri
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#' @param token API token
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#' @param records records to download
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#' @param fields fields to download
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#' @param events events to download
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#' @param forms forms to download
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#' @param raw_or_label raw or label tags
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#' @param split_forms Whether to split "repeating" or "all" forms, default is
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#' all.
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#'
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#' @return list of instruments
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#' @importFrom REDCapR redcap_metadata_read redcap_read redcap_event_instruments
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#' @include utils.r
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#' @export
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#'
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#' @examples
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#' # Examples will be provided later
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read_redcap_tables <- function(uri,
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token,
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records = NULL,
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fields = NULL,
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events = NULL,
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forms = NULL,
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raw_or_label = "label",
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split_forms = "all") {
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# Getting metadata
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m <-
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REDCapR::redcap_metadata_read(redcap_uri = uri, token = token)[["data"]]
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if (!is.null(fields)) {
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fields_test <- fields %in% c(m$field_name,paste0(unique(m$form_name),"_complete"))
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if (any(!fields_test)) {
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print(paste0("The following field names are invalid: ",
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paste(fields[!fields_test], collapse = ", "), "."))
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stop("Not all supplied field names are valid")
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}
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}
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if (!is.null(forms)) {
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forms_test <- forms %in% unique(m$form_name)
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if (any(!forms_test)) {
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print(paste0("The following form names are invalid: ",
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paste(forms[!forms_test], collapse = ", "), "."))
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stop("Not all supplied form names are valid")
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}
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}
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if (!is.null(events)) {
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arm_event_inst <- REDCapR::redcap_event_instruments(
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redcap_uri = uri,
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token = token
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)
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event_test <- events %in% unique(arm_event_inst$data$unique_event_name)
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if (any(!event_test)) {
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print(paste0("The following event names are invalid: ",
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paste(events[!event_test], collapse = ", "), "."))
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stop("Not all supplied event names are valid")
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}
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}
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# Getting dataset
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d <- REDCapR::redcap_read(
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redcap_uri = uri,
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token = token,
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fields = fields,
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events = events,
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forms = forms,
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records = records,
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raw_or_label = raw_or_label
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)[["data"]]
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# Process repeat instrument naming
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# Removes any extra characters other than a-z, 0-9 and "_", to mimic raw
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# instrument names.
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if ("redcap_repeat_instrument" %in% names(d)) {
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d$redcap_repeat_instrument <- clean_redcap_name(d$redcap_repeat_instrument)
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}
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# Processing metadata to reflect focused dataset
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m <- focused_metadata(m, names(d))
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# Splitting
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out <- REDCap_split(d,
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m,
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forms = split_forms,
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primary_table_name = ""
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)
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sanitize_split(out)
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}
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