module ArchiveHelper def academic_years academic_years = Set.new items.find_all('/posts/**/*').each do |i| academic_year = %r{/(\d\d)-\d\d/}.match(i.identifier).captures[0] academic_years << academic_year.to_i end academic_years end def academic_years_items academic_years.to_a.reverse.map { |y| [y, items["/blog/#{y}-#{y + 1}.html"]] }.to_h end def pretty_year(year) "'#{year} - '#{year + 1}" end def posts_in_year(academic_year) items.find_all('/posts/**/*').sort_by { |x| Date.parse x[:created_at] }.select do |post| post[:academic_year] == academic_year end.reverse end end