DataScienceCapstoneProject/server.R at master · nihathalici/DataScienceCapstoneProject · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
library(shiny)

source("./model.R", local = TRUE)

shinyServer(
    function(input, output, session){


        prediction <- reactive({
            nextWordPredictor(input$inputTxt)
        })

        output$words <- renderUI( {
            predictWords <- prediction()
            assign('savedWords', predictWords, envir=.GlobalEnv)
            n <- length(predictWords)
            if( n > 0 && nchar(predictWords) > 0) {
                buttons <- list()
                for(i in 1:n) {
                    buttons <- list(buttons, list(
                        actionButton(inputId = paste("word",i, sep = ""), label =predictWords[i])
                    ))
                }

                tagList(
                    buttons
                )
            } else {
                tagList("")
            }
        })

        observeEvent(input$word1, {
            updateTextInput(session, "inputTxt", value = paste(input$inputTxt, get('savedWords', envir=.GlobalEnv)[1]))
        })

        observeEvent(input$word2, {
            updateTextInput(session, "inputTxt", value = paste(input$inputTxt, get('savedWords', envir=.GlobalEnv)[2]))
        })

        observeEvent(input$word3, {
            updateTextInput(session, "inputTxt", value = paste(input$inputTxt, get('savedWords', envir=.GlobalEnv)[3]))
        })

        observeEvent(input$word4, {
            updateTextInput(session, "inputTxt", value = paste(input$inputTxt, get('savedWords', envir=.GlobalEnv)[4]))
        })

    })