method

build_options

v5.2.3 - Show latest stable - 0 notes - Class: ActionView::Helpers

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What's this?

build_options(selected, options = {}) private

Build select option HTML from date value and options.

build_options(15, start: 1, end: 31)
=> "<option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>..."

If use_two_digit_numbers: true option is passed

build_options(15, start: 1, end: 31, use_two_digit_numbers: true)
=> "<option value="1">01</option>
    <option value="2">02</option>
    <option value="3">03</option>..."

If :step options is passed

build_options(15, start: 1, end: 31, step: 2)
=> "<option value="1">1</option>
    <option value="3">3</option>
    <option value="5">5</option>..."

Show source

# File actionview/lib/action_view/helpers/date_helper.rb, line 976
        def build_options(selected, options = {})
          options = {
            leading_zeros: true, ampm: false, use_two_digit_numbers: false
          }.merge!(options)

          start         = options.delete(:start) || 0
          stop          = options.delete(:end) || 59
          step          = options.delete(:step) || 1
          leading_zeros = options.delete(:leading_zeros)

          select_options = []
          start.step(stop, step) do |i|
            value = leading_zeros ? sprintf("%02d", i) : i
            tag_options = { value: value }
            tag_options[:selected] = "selected" if selected == i
            text = options[:use_two_digit_numbers] ? sprintf("%02d", i) : value
            text = options[:ampm] ? AMPM_TRANSLATION[i] : text
            select_options << content_tag("option".freeze, text, tag_options)
          end

          (select_options.join("\n") + "\n").html_safe
        end

build_options

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