1  # encoding: utf-8
   2  #
   3  # Redmine - project management software
   4  # Copyright (C) 2006-2011  Jean-Philippe Lang
   5  #
   6  # This program is free software; you can redistribute it and/or
   7  # modify it under the terms of the GNU General Public License
   8  # as published by the Free Software Foundation; either version 2
   9  # of the License, or (at your option) any later version.
  10  #
  11  # This program is distributed in the hope that it will be useful,
  12  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  # GNU General Public License for more details.
  15  #
  16  # You should have received a copy of the GNU General Public License
  17  # along with this program; if not, write to the Free Software
  18  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 
  20  module CalendarsHelper
  21    def link_to_previous_month(year, month, options={})
  22      target_year, target_month = if month == 1
  23                                    [year - 1, 12]
  24                                  else
  25                                    [year, month - 1]
  26                                  end
  27 
  28      name = if target_month == 12
  29               "#{month_name(target_month)} #{target_year}"
  30             else
  31               "#{month_name(target_month)}"
  32             end
  33 
  34      # \xc2\xab(utf-8) = «
  35      link_to_month(("\xc2\xab " + name), target_year, target_month, options)
  36    end
  37 
  38    def link_to_next_month(year, month, options={})
  39      target_year, target_month = if month == 12
  40                                    [year + 1, 1]
  41                                  else
  42                                    [year, month + 1]
  43                                  end
  44 
  45      name = if target_month == 1
  46               "#{month_name(target_month)} #{target_year}"
  47             else
  48               "#{month_name(target_month)}"
  49             end
  50 
  51      # \xc2\xbb(utf-8) = »
  52      link_to_month((name + " \xc2\xbb"), target_year, target_month, options)
  53    end
  54 
  55    def link_to_month(link_name, year, month, options={})
  56      link_to_content_update(h(link_name), params.merge(:year => year, :month => month))
  57    end
  58  end