helpers.rb

   1 module Sinatra
   2   module PhotoFiling
   3     module Helpers
   4
   5       def files_in_dir
   6         Dir.entries(session[:current_dir]).select {|f| File.file? f}.sort_by {|f| file_sort_key f}
   7       end
   8
   9       def files_for_today(current_file)
  10         if File.exists?(current_file)
  11           day = File.mtime(current_file).to_date
  12           files_in_dir.select {|f| File.mtime(f).to_date == day}
  13         end
  14       end
  15
  16       def next_file(file)
  17         fid = files_in_dir
  18         i = fid.find_index(file)
  19         if i && i < fid.length
  20           fid[i + 1]
  21         end
  22       end
  23
  24       def previous_file(file)
  25         fid = files_in_dir
  26         i = fid.find_index(file)
  27         if i && i > 0
  28           fid[i - 1]
  29         end
  30       end
  31
  32       def file_sort_key(file)
  33         File.mtime(file).to_s + file
  34       end
  35
  36     end
  37   end
  38 end