# Copyright 2014 Janssen Research & Development, LLC.
#
# This file is part of tranSMART R Client: R package allowing access to
# tranSMART's data via its RESTful API.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation, either version 3 of the License, or (at your
# option) any later version, along with the following terms:
#
# 1. You may convey a work based on this program in accordance with
# section 5, provided that you retain the above notices.
# 2. You may convey verbatim copies of this program code as you receive
# it, in any medium, provided that you retain the above notices.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>..
getStudies <- function(name.match = "", as.data.frame = TRUE, cull.columns = TRUE) {
.checkTransmartConnection()
serverResult <- .transmartServerGetRequest("/studies", accept.type = "hal")
listOfStudies <- serverResult$studies
n <- length(listOfStudies)
if (n == 0) {
message("Empty list of studies received.")
}
studyNames <- sapply(listOfStudies, FUN = function(x) { x[["id"]] })
names(listOfStudies) <- studyNames
listOfStudies <- listOfStudies[ grep(name.match, studyNames) ]
if (as.data.frame) {
dataFrameStudies <- .listToDataFrame(listOfStudies)
if (cull.columns) {
columnsToKeep <- match(c("id", "api.link.self.href", "ontologyTerm.fullName"), names(dataFrameStudies))
if (n > 0 && any(is.na(columnsToKeep))) {
warning("There was a problem culling columns. You can try again with cull.columns = FALSE.")
message("Sorry. You've encountered a bug.\n",
"You can help fix it by contacting us. Type ?transmartRClient for contact details.\n",
"Optional: type options(verbose = TRUE) and replicate the bug to find out more details.")
}
return(dataFrameStudies[ , columnsToKeep])
}
return(dataFrameStudies)
}
listOfStudies
}
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