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#' Receive list results from CouchDB
#'
#' The function provides accesses to CouchDB lists.
#'
#' Query params e.g. \code{"reduce=false"} or \code{"group_level=1"} can be
#' provided in \code{cdb$queryParam} By now multible params must be given in
#' one string e.g. \code{"a=b&c=d&e=f"}.
#'
#' @usage cdbGetList(cdb)
#' @param cdb Beside the connection details (\code{cdb$port},\code{cdb$DBName}
#' ...) the \code{cdb$design} \code{cdb$view} and \code{cdb$list} is needed.
#' @return
#'
#' \item{cdb }{The result of the request is stored in cdb$res after converting
#' the json answer into a list using \code{cdb$fromJSON()}.
#' If a needed cdb (design, list,
#' view, ...) entry was not provided cdb$error says something about the R side.
#'
#' }
#' @author wactbprot
#' @export
#' @keywords misc
#'
cdbGetList <- function( cdb ){
fname <- deparse(match.call()[[1]])
cdb <- cdb$checkCdb(cdb,fname)
if(cdb$error ==""){
if(cdb$queryParam == ""){
queryString <- ""
}else{
## todo: let usr specify list(a=b, c=d) ...
queryString <- paste("?",cdb$queryParam, sep="")
}
adrString <- paste(cdb$baseUrl(cdb),
cdb$DBName,
"/_design/",
cdb$design,
"/_list/",
cdb$list,
"/",cdb$view,
queryString,
sep="")
res <- getURL(utils::URLencode(adrString),
customrequest = "GET",
curl = cdb$curl,
.opts = cdb$opts(cdb),
.encoding = cdb$serverEnc
)
return(cdb$checkRes(cdb,res))
}else{
stop( cdb$error )
}
}
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