The server function for the filter item module of a data filter module panel

The server function for the filter item module of a data filter module panel

Usage

shiny_data_filter_item(
  input,
  output,
  session,
  data,
  column_name = NULL,
  choices = names,
  verbose = FALSE
)

Arguments

input

requisite shiny module field specifying incoming ui input reactiveValues

output

requisite shiny module field capturing output for the shiny data filter ui

session

requisite shiny module field containing the active shiny session

data

a reactive expression returning a data.frame to use as the input to the filter item module

column_name

A column name to initialize the filter item with. If unspecified or NULL, the filter item is initialized in its column selection state.

choices

a list of values to select from, passed to selectizeInput. Alternatively, choices may also be a function used to extract choices from a (possibly filtered) data. Defaults to the names of data.

verbose

a logical value indicating whether or not to print log statements out to the console

Value

a reactiveValues list of three reactive elements; (1) a reactive data frame, (2) the code to filter a vector with the name of the specified data column, and (3) a flag indicating when to remove this filter.