I am working on a shiny app that creates a datatable to be edited and saved as a dataframe object globaly.
The problem i am facing is: the dataframe as a dropdowm menu option - the name
column. When the dataframe is saved, the output is the as.character
output. Example below:
library(shiny)
ui <- fluidPage(
DT::dataTableOutput("shinytest")
)
server <- function(input, output) {
df <- data.frame(Number = NA,
Pages = NA,
Name = as.character(selectInput(paste0("sel", 1), "", choices = c("x","y"), width = "100px"))
)
rv <- reactiveVal(df)
output$shinytest <- DT::renderDataTable ({
DT::datatable(rv(), editable = TRUE, escape = FALSE, selection = 'none'
)
})
observeEvent(input$shinytest_cell_edit, {
info <- input$shinytest_cell_edit
newdf <- rv()
newdf[info$row, info$col] <- info$value
rv(newdf)
x <<- rv()
})
}
shinyApp(ui, server)
for x in the global environment: under the column name I get: <div class="form-group shiny-input-container" style="width:100px;">\n <label class="control-label" id="sel1-label" for="sel1"></label>\n <div>\n <select id="sel1"><option value="x" selected>x</option>\n<option value="y">y</option></select>\n <script type="application/json" data-for="sel1" data-nonempty="">{"plugins":["selectize-plugin-a11y"]}</script>\n </div>\n</div>
Building on the code found in this post by @GyD
Any assistance is appreciated.
A dataframe was created inside the server with selectInput fed as data in name column, that caused that the pure html appeared as text in the final object (x). I moved the selectInput to the ui so that a name can be chosen for that column, although I didn't know if the selectInput is to select the actual column name but that is easily corrected.
I added an input to select the number of rows and an action button to avoid loosing all data if the inputs where edited again.
library(shiny)
library(DT)
library(tidyverse)
ui <- fluidPage(
selectInput(inputId = 'selection1', "", choices = c("x","y"), selected = 'x', width = "100px"),
numericInput('number_of_rows', 'How many rows?',value = 5),
actionButton('update', 'Refresh Table'),
DTOutput("shinytest")
)
server <- function(input, output, session) {
df <- eventReactive(input$update, {tibble(Number = '',
Pages = '',
Name = as.character(input$selection1),.rows = input$number_of_rows
)})
rv <- reactive(df())
output$shinytest <- renderDT({
datatable(rv(), editable = TRUE, escape = FALSE, selection = 'none')
})
observe({
newdf <<- df()
})
observeEvent(input$shinytest_cell_edit, {
info <- input$shinytest_cell_edit
newdf[info$row, info$col] <<- info$value
})
}
shinyApp(ui, server)
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