Is there a way to embed data into the survey?

[LarryVincent]

Description

Is there a way to embed data to the survey response that isn't tied to a question exposed to the respondent? For example, if I were to use some responses to calculate a score, or if I wanted to store the unique panel_id of the respondent in my response record (not just for redirecting back to the panel provider). I saw this tutorial on the latter:

# Reactive expression that generates a url for a normal ending
url_normal <- reactive({
  params <- sd_get_url_pars()
  id_a <- params["id_a"]
  id_b <- params["id_b"]
  id_c <- params["id_c"]
  return(paste0(
    "https://www.google.com?id_a=", id_a,
    "&id_b=", id_b,
    "&id_c=", id_c,
    "&status=0" # status of 0 indicates normal ending
})

But I wasn't sure how I could save those parameters into the database. Many of my surveys have embedded data. I'd love to replicate with surveydown.

[jhelvy]

Take a look at the reactivity page.

We have a function called sd_store_value() that you can use in the server function to store values in your database. For example, in this example we show how to generate a completion code, store it in your database, then display it later.

We also have a more streamlined way to compute values and store them at once with sd_reactive(), see this example. With sd_reactive(), the computed value automatically gets stored in your database, so no need to use sd_store_value() in that case.

[LarryVincent]

Thank you. Very helpful. By the way, I think this project is fantastic! You've done so much in a short time. I will support you in any way possible. This has the power to liberate us survey researchers from the tyranny of Qualtrics!