[R-pkg-devel] Weird error message during R CMD Check

Thu Mar 15 07:42:57 CET 2018

I don’t think the suggestion below will work as it would need to be a connection string to a database that the winbuilder computer (and whatever account) that is running would have access to.

It would be better to use \dontrun{} so that the examples aren’t run.

This is what is done in RODBC https://cran.r-project.org/web/packages/RODBC/index.html

More fundamentally, given   the cran repository policy on windows only packages, CRAN may not be the appropriate place to publish.

Michael.

On 15 Mar 2018, at 8:41 am, Marcelino de la Cruz Rot <marcelino.delacruz at urjc.es<mailto:marcelino.delacruz at urjc.es>> wrote:

It is very easy. You should define your variable connectionString before passing it to get_DB_info().

I.e.:

### ** Examples

connectionString <- WHATEVER_IS_CONNECTIONSTRING

get_DB_info(connectionString)

This would remove your error.

Cheers,

Marcelino.

El 14/03/2018 a las 22:15, martiankabe at gmail.com<mailto:martiankabe at gmail.com> escribió:
Hi Duncan,

could you help me fix this issue, please?

Below is function which creates connection string.

#' Create connection string from function parameters

#'

#' This function defines SQL Server connection string

#' from function parameters.

#' @param datasource Server name

#' @param database Database name

#' @param usr Username

#' @param pwd Password

#' @note If username and password missing or empty \strong{Integrated Security=True} is used in connection string instead.

#' @return Connection string

#' @export

#' @examples

#' set_connString("LAPTOP-USER\\SQLEXPRESS", "Database_Name")

set_connString <- function(datasource, database, usr, pwd) {

  ds <- paste("Data Source=", datasource, ";", sep = "")

  db <- paste("Initial Catalog=", database, ";", sep = "")

  if ((missing(usr) & missing(pwd)) || (usr=="" & pwd=="")) {

    last_param <- "Integrated Security=True;MultipleActiveResultSets=True;"

  } else {

    last_param <- paste("Integrated Security=False;", "User Id=", usr, ";", "Password=", pwd, ";", "MultipleActiveResultSets=True;", sep = "")

  }

  return(paste('"', ds, db, last_param, '"', sep = ""))

}

This connection string is then passed to get_DB_info function – see below.

How can I fix object ‘connectionString’ not found issue?

Thank you for any of your advice.

Martin

#' Get database info

#'

#' This function retrieves basic info about database defined

#' in SQL Server connection string.

#' @param connectionString Connection string to SQL server

#' @return Returns data.frame and data.table

#' @export

#' @examples

#' get_DB_info(connectionString)

#' @note How to set up SQL Server connection string see \link{set_connString}. Be also sure you have a permissions for access to sys.dm_db_index_usage_stats:

#' check it with SELECT * FROM sys.dm_db_index_usage_stats. If not, contact your SQL Server admin.

get_DB_info <- function(connectionString) {

  options(scipen=999)

  if (missing(connectionString)) {

    print("Connection string is missing!")

    return("Try it again")

  }

  # connectionString <- connectionString

  pathtocsvloader <- gsub("/","\\\\",paste(system.file(package = "RSQLS")[1],"/Loader/csv_to_sql_loader.exe", sep = ""))

  pathtocsvloader <- replace_spaced_words(pathtocsvloader)

  pathtocsvloader <- gsub('.{1}$', '', pathtocsvloader)

  # logic for pathtocsvfiles variable

  pathtocsvfiles <- gsub("/","\\\\",paste(system.file(package = "RSQLS")[1],"/Data/", sep = ""))

  if (!endsWith(pathtocsvfiles, "\\")) {

    pathtocsvfiles <- paste(pathtocsvfiles,"\\", sep = "")

  }

  sqltabname <- "tempDBInfo"

  sqltabname <- gsub("\\[|\\]", "", sqltabname)

  if (length(strsplit(sqltabname,"\\.")[[1]]) > 1) {

    sqltabname_prev <- gsub("^[^.]*.", "", sqltabname)

  } else {

    sqltabname_prev <- sqltabname

  }

  sql_tab_name <- paste('"', sqltabname, '"', sep = "") # '"dbo.CFTC_Disaggregated_Raw_test"'

  sql_task <- paste('"dbinfo"', sep = "")

  real_pathtocsvfile <- paste('"', pathtocsvfiles, paste(sqltabname_prev, ".csv", sep = ""),'"', sep = "")

  file_to_be_deleted <- paste(pathtocsvfiles, paste(sqltabname_prev, ".csv", sep = ""), sep = "")

  ss <- paste('', pathtocsvloader, " ", connectionString, " ", sql_task, " ", real_pathtocsvfile, " ", "null", sep = "")

  # Call shell command

  oldw <- getOption("warn")

  options(warn = -1)

  sc <- shell(ss)

  if (file.exists(file_to_be_deleted)){

    out <- data.table::fread(file_to_be_deleted, stringsAsFactors = FALSE, sep = "~", fill = TRUE)

  } else{

    options(warn = oldw)

    stop('See the previous messages for more details.')

  }

  # Delete csv file

  if (file.exists(file_to_be_deleted)){

    invisible(file.remove(file_to_be_deleted))

  } else{

    options(warn = oldw)

    stop('See the previous messages for more details.')

  }

  if( sc == 1 ) {

    options(warn = oldw)

    stop('See the previous messages for more details.')

  } else {

    options(warn = oldw)

  }

  return(out)

}

-----Původní zpráva-----
Od: Duncan Murdoch <murdoch.duncan at gmail.com<mailto:murdoch.duncan at gmail.com>>
Odesláno: 13 March 2018 23:22
Komu: martiankabe at gmail.com<mailto:martiankabe at gmail.com>; r-package-devel-bounces at r-project.org<mailto:r-package-devel-bounces at r-project.org>
Kopie: r-package-devel at r-project.org<mailto:r-package-devel at r-project.org>
Předmět: Re: [R-pkg-devel] Weird error message during R CMD Check

On 13/03/2018 4:53 PM,  <mailto:martiankabe at gmail.com> martiankabe at gmail.com<mailto:martiankabe at gmail.com> wrote:

Hello,
  I'm trying to submit my package to CRAN but receiving the following
error message.
  object 'connectionString' not found

Your example never defined a variable called connectionString, so you can't pass it to a function.

Duncan Murdoch

  even if it is parameter of get_DB_info(connectionString) function -
see the function definition below error message.
  Please, can you help me to understand what should be fixed in the code
so that I could successfully submit my package to CRAN?
  Thanks a lot for any of your help in advance.
  Best,
Martin
    <https://win-builder.r-project.org/incoming_pretest/180313_212715_RSQLS> https://win-builder.r-project.org/incoming_pretest/180313_212715_RSQLS
_16/00
check.log
* checking examples ...
** running examples for arch 'i386' ... ERROR
Running examples in 'RSQLS-Ex.R' failed
The error most likely occurred in:

base::assign(".ptime", proc.time(), pos = "CheckExEnv")
### Name: get_DB_info
### Title: Get database info
### Aliases: get_DB_info
### ** Examples
get_DB_info(connectionString)
Error in paste("", pathtocsvloader, " ", connectionString, " ", sql_task,  :
   object 'connectionString' not found
Calls: get_DB_info -> paste
Execution halted
** running examples for arch 'x64' ... ERROR
Running examples in 'RSQLS-Ex.R' failed
The error most likely occurred in:

base::assign(".ptime", proc.time(), pos = "CheckExEnv")
### Name: get_DB_info
### Title: Get database info
### Aliases: get_DB_info
### ** Examples
get_DB_info(connectionString)
Error in paste("", pathtocsvloader, " ", connectionString, " ", sql_task,  :
   object 'connectionString' not found
Calls: get_DB_info -> paste
Execution halted
* checking PDF version of manual ... OK
* DONE
Status: 2 ERRORs, 3 WARNINGs, 4 NOTEs
  ------------------------------------ get_DB_info(connectionString)
------------------------------------------------------------
  #' Get database info
#'
#' This function retrieves basic info about database defined
#' in SQL Server connection string.
#' @param connectionString Connection string to SQL server
#' @return Returns data.frame and data.table
#' @export
#' @examples
#' get_DB_info(connectionString)
#' @note How to set up SQL Server connection string see
\link{set_connString}. Be also sure you have a permissions for access
to
sys.dm_db_index_usage_stats:
#' check it with SELECT * FROM sys.dm_db_index_usage_stats. If not,
contact your SQL Server admin.
get_DB_info <- function(connectionString) {
   options(scipen=999)
   if (missing(connectionString)) {
     print("Connection string is missing!")
     return("Try it again")
   }
   pathtocsvloader <- gsub("/","\\\\",paste(system.file(package =
"RSQLS")[1],"/Loader/csv_to_sql_loader.exe", sep = ""))
   pathtocsvloader <- replace_spaced_words(pathtocsvloader)
   pathtocsvloader <- gsub('.{1}$', '', pathtocsvloader)
   # logic for pathtocsvfiles variable
   pathtocsvfiles <- gsub("/","\\\\",paste(system.file(package =
"RSQLS")[1],"/Data/", sep = ""))
   if (!endsWith(pathtocsvfiles, "\\")) {
     pathtocsvfiles <- paste(pathtocsvfiles,"\\", sep = "")
   }
   sqltabname <- "tempDBInfo"
   sqltabname <- gsub("\\[|\\]", "", sqltabname)
   if (length(strsplit(sqltabname," <file://.> \\.")[[1]]) > 1) {
     sqltabname_prev <- gsub("^[^.]*.", "", sqltabname)
   } else {
     sqltabname_prev <- sqltabname
   }
   sql_tab_name <- paste('"', sqltabname, '"', sep = "") #
'"dbo.CFTC_Disaggregated_Raw_test"'
   sql_task <- paste('"dbinfo"', sep = "")
   real_pathtocsvfile <- paste('"', pathtocsvfiles,
paste(sqltabname_prev, ".csv", sep = ""),'"', sep = "")
   file_to_be_deleted <- paste(pathtocsvfiles, paste(sqltabname_prev,
".csv", sep = ""), sep = "")
   ss <- paste('', pathtocsvloader, " ", connectionString, " ", sql_task, "
", real_pathtocsvfile, " ", "null", sep = "")
   # Call shell command
   oldw <- getOption("warn")
   options(warn = -1)
   sc <- shell(ss)
   if (file.exists(file_to_be_deleted)){
     out <- data.table::fread(file_to_be_deleted, stringsAsFactors =
FALSE, sep = "~", fill = TRUE)
   } else{
     options(warn = oldw)
     stop('See the previous messages for more details.')
   }
   # Delete csv file
   if (file.exists(file_to_be_deleted)){
     invisible(file.remove(file_to_be_deleted))
   } else{
     options(warn = oldw)
     stop('See the previous messages for more details.')
   }
   if( sc == 1 ) {
     options(warn = oldw)
     stop('See the previous messages for more details.')
   } else {
     options(warn = oldw)
   }
   return(out)
}
  ---
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--
Marcelino de la Cruz Rot
Depto. de Biología y Geología
Física y Química Inorgánica
Universidad Rey Juan Carlos
Móstoles España

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