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Define forward skip conditions for survey pages

Source: R/server.R
sd_skip_forward.Rd

This function is used to define conditions under which certain pages in the survey should be skipped ahead to (forward only). It takes one or more formulas where the left-hand side is the condition and the right-hand side is the target page ID.

Usage

sd_skip_forward(...)

Arguments

...

One or more formulas defining skip conditions. The left-hand side of each formula should be a condition based on input values, and the right-hand side should be the ID of the page to skip to if the condition is met. Only forward skipping (to pages later in the sequence) is allowed.

Value

A list of parsed conditions, where each element contains the condition and the target page ID.

See also

sd_show_if()

Examples

if (interactive()) {
  library(surveydown)

  # Get path to example survey file
  survey_path <- system.file("examples", "sd_skip_forward.qmd",
                             package = "surveydown")

  # Copy to a temporary directory
  temp_dir <- tempdir()
  file.copy(survey_path, file.path(temp_dir, "survey.qmd"))
  orig_dir <- getwd()
  setwd(temp_dir)

  # Define a minimal server
  server <- function(input, output, session) {

    # Skip forward to specific pages based on fruit selection
    sd_skip_forward(
      input$fav_fruit == "apple" ~ "apple_page",
      input$fav_fruit == "orange" ~ "orange_page",
      input$fav_fruit == "other" ~ "other_page"
    )

    sd_server()
  }

  # Run the app
  shiny::shinyApp(ui = sd_ui(), server = server)

  # Clean up
  setwd(orig_dir)
}