Shiny inptDateRange setting min view to only show months for example not days

dateRangeShowMonthlyOnly.R

# Thanks to David https://stackoverflow.com/a/54922170/4606130


# date range input set to month with minview
# https://stackoverflow.com/a/54922170/4606130

dateInput2 <- function(inputId, label, minview = "days", maxview = "decades", ...) {
  d <- shiny::dateInput(inputId, label, ...)
  d$children[[2L]]$attribs[["data-date-min-view-mode"]] <- minview
  d$children[[2L]]$attribs[["data-date-max-view-mode"]] <- maxview
  d
}

dateRangeInput2 <- function(inputId, label, minview = "days", maxview = "decades", ...) {
  d <- shiny::dateRangeInput(inputId, label, ...)
  d$children[[2L]]$children[[1]]$attribs[["data-date-min-view-mode"]] <- minview
  d$children[[2L]]$children[[3]]$attribs[["data-date-min-view-mode"]] <- minview
  d$children[[2L]]$children[[1]]$attribs[["data-date-max-view-mode"]] <- maxview
  d$children[[2L]]$children[[3]]$attribs[["data-date-max-view-mode"]] <- maxview
  d
}

library(shiny)
shinyApp(
  ui = fluidPage(
    dateInput2("test1", "Year", startview = "year", minview = "months", maxview = "decades"),
    dateRangeInput2("test2", "Years", startview = "year", minview = "months", maxview = "decades",
                    format = "yyyy-mm")
  ),
  server = function(input, output, session) {}
)