闪亮 javascript 多页数据表的列总和

shiny javascript column sum over multiple pages of datatable

这是我之前问题的后续问题,可以在 .

中找到

在此代码片段中,我使用 Javascript 计算闪亮数据 table 的列总和,因为我希望它直接显示在数据 table.[=15= 下方]

library(shiny)
library(DT)

ui <- shinyUI(fluidPage(
  h1("Testing TableTools"),
  mainPanel(dataTableOutput("display"))
))

Names <- c("", names(mtcars))
FooterNames <- c(rep("", 5), Names[6], rep("", 6))

server <- function(input, output, session) {
  sketch <- htmltools::withTags(table(
    tableHeader(Names), tableFooter(FooterNames)
  ))
  
  opts <- list(
    footerCallback = JS(
    "function(tfoot, data, start, end, display) {
      var api = this.api(), data;
      var sum1 =  api.column(5).data().reduce(function(a, b) {
        return a + b;
      });
      sum1 = Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(sum1)
      $(api.column(5).footer()).html('SubTotal:  ' + sum1)
    }"
    )
  )
  
  output$display <- DT::renderDataTable(container = sketch, extensions = "Buttons", options = opts, {
    mtcars
  })
}

shinyApp(ui = ui, server = server)

但是,对 table 进行排序将更改列总和,因为总和只是显示列的总和。 我想更改它,以便在 table 的多个“页面”的情况下显示总和,如果只有一页,它应该像现在一样计算它。

server = FALSErenderDTcolumn(5, {search: 'applied'}) 在 JavaScript:

library(shiny)
library(DT)

ui <- shinyUI(fluidPage(
  h1("Testing TableTools"),
  mainPanel(DTOutput("display"))
))

Names <- c("", names(mtcars))
FooterNames <- c(rep("", 5), Names[6], rep("", 6))

server <- function(input, output, session) {
  sketch <- htmltools::withTags(table(
    tableHeader(Names), tableFooter(FooterNames)
  ))
  
  opts <- list(
    footerCallback = JS(
      "function(tfoot, data, start, end, display){
      var api = this.api(), data;
      var sum1 = api.column(5, {search: 'applied'}).data().reduce(function(a, b) {
        return a + b;
      });
      sum1 = Intl.NumberFormat('de-DE', {style: 'currency', currency: 'EUR'}).format(sum1);
      $(api.column(5).footer()).html('SubTotal:  ' + sum1);
    }"
    )
  )
  
  output$display <- renderDT({
    datatable(
      mtcars, 
      container = sketch, 
      extensions = "Buttons", 
      options = opts
    )
  }, server = FALSE)
}

shinyApp(ui = ui, server = server)