# redMine - project management software
# Copyright (C) 2006  Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module ReportsHelper
  
  def aggregate(data, criteria)
    a = 0
    data.each { |row|
      match = 1
      criteria.each { |k, v|
        match = 0 unless (row[k].to_s == v.to_s) || (k == 'closed' && row[k] == (v == 0 ? "f" : "t"))
      } unless criteria.nil?
      a = a + row["total"].to_i if match == 1
    } unless data.nil?
    a
  end
  
  def aggregate_link(data, criteria, *args)
    a = aggregate data, criteria
    a > 0 ? link_to(a, *args) : '-'
  end  
end
