I fielded a debugging request from a non-expert user today. At root was running the following:
dbGetQuery(connection = conn, query = query) The problem is that they've named the arguments incorrectly -- it should have been [1]: dbGetQuery(conn = conn, statement = query) The problem is that the error message "looks" highly confusing to the untrained eye: Error in (function (classes, fdef, mtable) : unable to find an inherited method for function ‘dbGetQuery’ for signature ‘"missing", "missing"’ In retrospect, of course, this makes sense -- the mis-named arguments are getting picked up by '...', leaving the required arguments missing. But I was left wondering how we could help users right their own ship here. Would it help to mention the argument names? To include some code checking for weird combinations of missing arguments? Any other suggestions? Mike C [1] https://github.com/r-dbi/DBI/blob/97934c885749dd87a6beb10e8ccb6a5ebea3675e/R/dbGetQuery.R#L62-L64 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
