# Example of a Survey using the ShinyPsych package
#
# Code sections:
# - Section 0: Load Libraries
# - Section A: assign external values
# - Section B: Define overall layout
# - Section C: Define reactive values
# - Section D: Page layouts
# - Section F: Event (e.g. button) actions
# - Section F1: Page navigation button
# - Section F2: Event Control
# - Section G: Save Data
# Section 0: Load Libraries ====================================================
library(shiny)
library(shinyjs)
library(ShinyPsych)
# Section A: assign external values ============================================
# Dropbox directory to save data
outputDir <- "ShinyPsych/Survey"
# Vector with page ids used to later access objects
idsVec <- c("Instructions", "Survey", "Demographics", "Goodbye")
# create page lists for the instructions and the last page
instructions.list <- createPageList(fileName = "Instructions_Survey",
globId = "Instructions")
survey.list <- createPageList(fileName = "Survey_Example",
globId = "Survey")
demographics.list <- createPageList(fileName = "Demographics")
goodbye.list <- createPageList(fileName = "Goodbye")
# Section B: Define overall layout =============================================
ui <- fixedPage(
# App title
title = "ShinySurvey",
uiOutput("MainAction"),
# For Shinyjs functions
useShinyjs(),
# include appropriate css and js scripts
includeScriptFiles()
)
server <- function(input, output, session) {
output$MainAction <- renderUI( {
PageLayouts()
})
# Section C: Define Reactive Values ==========================================
# CurrentValues controls page setting such as which page to display
CurrentValues <- createCtrlList(firstPage = "instructions", # id of the first page
globIds = idsVec, # ids of pages for createPage
complCode = TRUE, # create a completion code
complName = "EP-Survey") # first element of completion code
# Section D: Page Layouts ====================================================
PageLayouts <- reactive({
# insert created completion code that it can later be displayed
goodbye.list <- changePageVariable(pageList = goodbye.list, variable = "text",
oldLabel = "completion.code",
newLabel = CurrentValues$completion.code)
# display instructions page
if (CurrentValues$page == "instructions") {
return(
# create html logic of instructions page
createPage(pageList = instructions.list,
pageNumber = CurrentValues$Instructions.num,
globId = "Instructions", ctrlVals = CurrentValues)
)}
# display survey page
if (CurrentValues$page == "survey") {
return(
# create html logic of instructions page
createPage(pageList = survey.list,
pageNumber = CurrentValues$Survey.num,
globId = "Survey", ctrlVals = CurrentValues)
)}
if (CurrentValues$page == "demographics"){
return(
createPage(pageList = demographics.list, pageNumber = CurrentValues$Demographics.num,
globId = "Demographics", ctrlVals = CurrentValues)
)}
# P5) Goodbye
if (CurrentValues$page == "goodbye") {
return(
createPage(pageList = goodbye.list, pageNumber = CurrentValues$Goodbye.num,
globId = "Goodbye", ctrlVals = CurrentValues, continueButton = FALSE)
)}
})
# Section F: Event (e.g.; button) actions ======================================
# Section F1: Page Navigation Buttons ----------------------
observeEvent(input[["Instructions_next"]],{
nextPage(pageId = "instructions", ctrlVals = CurrentValues, nextPageId = "survey",
pageList = instructions.list, globId = "Instructions")
})
observeEvent(input[["Survey_next"]],{
nextPage(pageId = "survey", ctrlVals = CurrentValues,
nextPageId = "demographics", pageList = survey.list,
globId = "Survey")
})
# Section F2: Event Control ----------------------
# Make sure answers are selected
observeEvent(reactiveValuesToList(input),{
onInputEnable(pageId = "instructions", ctrlVals = CurrentValues,
pageList = instructions.list, globId = "Instructions",
inputList = input, charNum = 4)
onInputEnable(pageId = "survey", ctrlVals = CurrentValues,
pageList = survey.list, globId = "Survey",
inputList = input)
onInputEnable(pageId = "demographics", ctrlVals = CurrentValues,
pageList = demographics.list, globId = "Demographics",
inputList = input)
})
# Section G: Save data =========================================================
observeEvent(input[["Demographics_next"]], {(
# Create progress message
withProgress(message = "Saving data...", value = 0, {
incProgress(.25)
# Create a list to save data
data.list <- list( "id" = input$Instructions_workerid,
"color" = input$Survey_qu1,
"capital" = input$Survey_qu2,
"swallow" = input$Survey_qu3,
"like.survey" = input$Survey_qu4,
"age" = input$Demographics_age,
"sex" = input$Demographics_sex,
"input.order" = survey.list$id.order)
# save Data
if (!is.null(input$Instructions_mail) &&
nchar(input$Instructions_mail) > 4){
saveData(data.list, location = "mail", outputDir = outputDir,
partId = data.list$id, suffix = "_g",
mailSender = "shinypsych@gmail.com",
mailReceiver = input$Instructions_mail,
mailBody = "Your data sent by the ShinyPsych app demo.",
mailSubject = paste("ShinyPsych data for id", data.list$id))
} else {
saveData(data.list, location = "dropbox", outputDir = outputDir,
partId = data.list$id, suffix = "_s")
}
CurrentValues$page <- "goodbye"
})
)})
}
# Create app!
shinyApp(ui = ui, server = server)
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