Active Model Helpers

Action View Asset URL Helpers

Action View Atom Feed Helpers

Action View Cache Helper

Action View Capture Helper

Action View CSRF Helper

Action View Debug Helper

Provides a set of methods for making it easier to debug Rails objects.

Action View Form Helpers

Action View Form Option Helpers

Action View Form Tag Helpers

Action View Sanitize Helpers

Action View Translation Helpers

Namespace
Methods
S
Instance Public methods
select_month()

Source: show | on GitHub 

# File actionview/lib/action_view/helpers/date_helper.rb, line 816
def select_month
  if @options[:use_hidden] || @options[:discard_month]
    build_hidden(:month, month || 1)
  else
    month_options = []
    1.upto(12) do |month_number|
      options = { value: month_number }
      options[:selected] = "selected" if month == month_number
      month_options << content_tag("option".freeze, month_name(month_number), options) + "\n"
    end
    build_select(:month, month_options.join)
  end
end
select_year()

Source: show | on GitHub 

# File actionview/lib/action_view/helpers/date_helper.rb, line 830
def select_year
  if !@datetime || @datetime == 0
    val = "1"
    middle_year = Date.today.year
  else
    val = middle_year = year
  end

  if @options[:use_hidden] || @options[:discard_year]
    build_hidden(:year, val)
  else
    options                     = {}
    options[:start]             = @options[:start_year] || middle_year - 5
    options[:end]               = @options[:end_year] || middle_year + 5
    options[:step]              = options[:start] < options[:end] ? 1 : -1
    options[:leading_zeros]     = false
    options[:max_years_allowed] = @options[:max_years_allowed] || 1000

    if (options[:end] - options[:start]).abs > options[:max_years_allowed]
      raise ArgumentError, "There are too many years options to be built. Are you sure you haven't mistyped something? You can provide the :max_years_allowed parameter."
    end

    build_options_and_select(:year, val, options)
  end
end