searchPanes extension in Rmarkdown - r

Question

I am trying to get the searchPanes extension from DT to work in an rmarkdown file (https://rstudio.github.io/DT/extensions.html). I can get it to work with datatable but not with renderDataTable and reactive statement. Attached is a working example that one tab shows it working and the other tab showing the issue. Any advice/recommendation is appreciate.
My code:
---
title: "Filter_example"
output: flexdashboard::flex_dashboard
runtime: shiny
date: "`r Sys.Date()`"
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = F)
library(DT)
library(tidyverse)
```
# Sidebar {.sidebar data-width="200"}
```{r sidebar, echo=FALSE}
selectizeInput('color', label ='color', choices = diamonds$color ,
multiple = TRUE,
options = list(maxItems = 5,
placeholder = 'Search Here...'))
```
# Diamonds Are Forever
```{r echo=FALSE}
diamonds %>%
datatable(
rownames = F,
extensions = c("SearchPanes", "Select", "Buttons"),
options = list(
language = list(searchPanes = list(collapse = "Filter Rows")),
scrollX= "30vw",
scrollY = "45vh",
dom = "Blfrtip",
buttons = list("searchPanes")
),
selection = 'none'
)
```
# Diamonds Are Forever renderDataTable
```{r echo=FALSE}
diamonds_dd <- reactive({
if (is.null(input$color)){
diamonds
}
else if(!is.null(input$color)) {
diamonds %>%
filter(color %in% input$color)
}
})
DT::renderDataTable(diamonds_dd(),extensions = c("SearchPanes", "Select", "Buttons"),
options = list(
scrollX= "30vw",
scrollY = "45vh",
dom = "Blfrtip",
buttons = list("searchPanes"),
columnDefs = list(
list(searchPanes = list(show = FALSE), targets = 3:5),
list(searchPanes = list(controls = FALSE), targets = 0:2),
list(className = "dt-center", targets = 0:5)
)
),
selection = 'none'
)
```

Answer 1

You need server = FALSE.
DT::renderDataTable(
diamonds_dd(), extensions = c("SearchPanes", "Select", "Buttons"),
options = list(
scrollX= "30vw",
scrollY = "45vh",
dom = "Blfrtip",
buttons = list("searchPanes"),
columnDefs = list(
list(searchPanes = list(show = FALSE), targets = 3:5),
list(searchPanes = list(controls = FALSE), targets = 0:2),
list(className = "dt-center", targets = 0:5)
)
),
selection = 'none',
server = FALSE
)
However, this is not recommended for a large dataset like diamonds. It sends all rows to users which is unnecessary and takes a long time.