The range filter renders two input fields of the same type. Backpex offers the :date, :datetime and the number type.

See the following example for an implementation of a date range filter.

defmodule MyAppWeb.Filters.DateRange do
  use Backpex.Filters.Range

  @impl Backpex.Filters.Range
  def type, do: :date

  @impl Backpex.Filter
  def label, do: "Date Range (begins at)"
end

Information

Note that the query function is already implemented via Backpex.Filters.Range.

use Backpex.Filters.Range

When you use Backpex.Filters.Range, the Backpex.Filters.Range module will set @behavior Backpex.Filters.Range. In addition it will add a render and render_form function in order to display the corresponding filter. It will also implement the Backpex.Filter.query function to define a range query.