Rails - return an array of months for a select tag

Question

I\'m in an app that is on Rails 2.3.8, and need to return an array of month names and numbers to be plugged into an options_for_select statement. What I\'ve got so far is kind

Answer 1

This is my solution for you, in case you work with I18n-based projects, that requires multilingual features:

def month_array
  # Gets the first day of the year
  date = Date.today.beginning_of_year
  # Initialize the months array
  months = {}

  # Iterate through the 12 months of the year to get it's collect
  12.times do |i| # from 0 to 11
    # Get month name from current month number in a selected language (locale parameter)
    month_name = I18n.l(date + i.months, format: '%B', locale: :en).capitalize
    months[month_name] = i + 1
  end
  return months
end

# => {"January"=>1, "February"=>2, "March"=>3, "April"=>4, "May"=>5, "June"=>6, "July"=>7, "August"=>8, "September"=>9, "October"=>10, "November"=>11, "December"=>12}

Regards

Answer 2

Found this nifty way to shift off the first nil but return a new collection of months. You cannot use shift on it since that would try to modify the frozen variable.

Date::MONTHNAMES.drop(1)

Answer 3

Working for ROR 4

select_month(0 , prompt: 'Choose month')

Answer 4

# alternative 1 
Date::MONTHNAMES.compact.zip(1.upto(12)).to_h

# alternative 2
Date::MONTHNAMES.compact.zip([*1..12]).to_h

Outputs:

{"January"=>0, "February"=>1, "March"=>2, "April"=>3, "May"=>4, "June"=>5, "July"=>6, "August"=>7, "September"=>8, "October"=>9, "November"=>10, "December"=>11}

Example:

# using simple_form
f.input :month, collection:  Date::MONTHNAMES.compact.zip(1.upto(12)).to_h