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# encoding: utf-8

#

# Redmine - project management software

# Copyright (C) 2006-2011  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 VersionsHelper

  STATUS_BY_CRITERIAS = %w(category tracker status priority author assigned_to)

  def render_issue_status_by(version, criteria)

    criteria = 'category' unless STATUS_BY_CRITERIAS.include?(criteria)

    h = Hash.new {|k,v| k[v] = [0, 0]}

    begin

      # Total issue count

      Issue.count(:group => criteria,

                  :conditions => ["#{Issue.table_name}.fixed_version_id = ?", version.id]).each {|c,s| h[c][0] = s}

      # Open issues count

      Issue.count(:group => criteria,

                  :include => :status,

                  :conditions => ["#{Issue.table_name}.fixed_version_id = ? AND #{IssueStatus.table_name}.is_closed = ?", version.id, false]).each {|c,s| h[c][1] = s}

    rescue ActiveRecord::RecordNotFound

    # When grouping by an association, Rails throws this exception if there's no result (bug)

    end

    counts = h.keys.compact.sort.collect {|k| {:group => k, :total => h[k][0], :open => h[k][1], :closed => (h[k][0] - h[k][1])}}

    max = counts.collect {|c| c[:total]}.max

    render :partial => 'issue_counts', :locals => {:version => version, :criteria => criteria, :counts => counts, :max => max}

  end

  def status_by_options_for_select(value)

    options_for_select(STATUS_BY_CRITERIAS.collect {|criteria| [l("field_#{criteria}".to_sym), criteria]}, value)

  end

end