Pass Server.R session variable into global.R in R Shiny

Asked Aug 17 '16 at 15:54

Active Aug 17 '16 at 16:38

Viewed 458 times

I am extracting url_search query using

query <- parseQueryString(session$clientData$url_search). #in Server.R

I need to pass query variable from server.R to global.R

hdfs_path <- MyQuery#in global.R

I am not able to make 'query' as a global variable so that it is read in Global.R. Is there way to pass the query variable to Global.R?

I tried this solution, but did not work for me:

MyQuery <- reactiveValues() #in Global.R 

assign('MyQuery',query,envir=.GlobalEnv) #assign from server.R to global.R

Please help as I am not able to find a solution for this.

edited Aug 17 '16 at 16:38

asked Aug 17 '16 at 15:54

manzoor Razaak

Should your `assign` code be `assign('MyQuery', MyQuery, envir=.GlobalEnv)` ? – steveb Aug 17 '16 at 16:06
Sorry, that was typo. I did use it as assign('MyQuery', MyQuery, envir=.GlobalEnv), but did not work. – manzoor Razaak Aug 17 '16 at 16:24
@Pork Chop: Thanks for you reply. I have tried using it, but did not work. – manzoor Razaak Aug 17 '16 at 16:43
I recall that `jdharrison` had an example, you can look at it here http://stackoverflow.com/questions/25749749/shiny-ui-save-the-changes-in-the-inputs – Pork Chop Aug 17 '16 at 16:46
Also, why not save that query string as a variable in the database table? – Pork Chop Aug 17 '16 at 16:50
@manzoorRazaak Perhaps you want to update your post if it was a typo. – steveb Aug 17 '16 at 19:59

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