Chris@909: # Redmine - project management software
Chris@909: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@909: #
Chris@909: # This program is free software; you can redistribute it and/or
Chris@909: # modify it under the terms of the GNU General Public License
Chris@909: # as published by the Free Software Foundation; either version 2
Chris@909: # of the License, or (at your option) any later version.
Chris@909: #
Chris@909: # This program is distributed in the hope that it will be useful,
Chris@909: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@909: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@909: # GNU General Public License for more details.
Chris@909: #
Chris@909: # You should have received a copy of the GNU General Public License
Chris@909: # along with this program; if not, write to the Free Software
Chris@909: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@909: 
Chris@909: class Version < ActiveRecord::Base
Chris@909:   after_update :update_issues_from_sharing_change
Chris@909:   belongs_to :project
Chris@909:   has_many :fixed_issues, :class_name => 'Issue', :foreign_key => 'fixed_version_id', :dependent => :nullify
Chris@909:   acts_as_customizable
Chris@909:   acts_as_attachable :view_permission => :view_files,
Chris@909:                      :delete_permission => :manage_files
Chris@909: 
Chris@909:   VERSION_STATUSES = %w(open locked closed)
Chris@909:   VERSION_SHARINGS = %w(none descendants hierarchy tree system)
Chris@909: 
Chris@909:   validates_presence_of :name
Chris@909:   validates_uniqueness_of :name, :scope => [:project_id]
Chris@909:   validates_length_of :name, :maximum => 60
Chris@909:   validates_format_of :effective_date, :with => /^\d{4}-\d{2}-\d{2}$/, :message => :not_a_date, :allow_nil => true
Chris@909:   validates_inclusion_of :status, :in => VERSION_STATUSES
Chris@909:   validates_inclusion_of :sharing, :in => VERSION_SHARINGS
Chris@909: 
Chris@909:   named_scope :named, lambda {|arg| { :conditions => ["LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip]}}
Chris@909:   named_scope :open, :conditions => {:status => 'open'}
Chris@909:   named_scope :visible, lambda {|*args| { :include => :project,
Chris@909:                                           :conditions => Project.allowed_to_condition(args.first || User.current, :view_issues) } }
Chris@909: 
Chris@909:   # Returns true if +user+ or current user is allowed to view the version
Chris@909:   def visible?(user=User.current)
Chris@909:     user.allowed_to?(:view_issues, self.project)
Chris@909:   end
Chris@909: 
Chris@909:   # Version files have same visibility as project files
Chris@909:   def attachments_visible?(*args)
Chris@909:     project.present? && project.attachments_visible?(*args)
Chris@909:   end
Chris@909: 
Chris@909:   def start_date
Chris@909:     @start_date ||= fixed_issues.minimum('start_date')
Chris@909:   end
Chris@909: 
Chris@909:   def due_date
Chris@909:     effective_date
Chris@909:   end
Chris@909: 
Chris@909:   def due_date=(arg)
Chris@909:     self.effective_date=(arg)
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the total estimated time for this version
Chris@909:   # (sum of leaves estimated_hours)
Chris@909:   def estimated_hours
Chris@909:     @estimated_hours ||= fixed_issues.leaves.sum(:estimated_hours).to_f
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the total reported time for this version
Chris@909:   def spent_hours
Chris@909:     @spent_hours ||= TimeEntry.sum(:hours, :include => :issue, :conditions => ["#{Issue.table_name}.fixed_version_id = ?", id]).to_f
Chris@909:   end
Chris@909: 
Chris@909:   def closed?
Chris@909:     status == 'closed'
Chris@909:   end
Chris@909: 
Chris@909:   def open?
Chris@909:     status == 'open'
Chris@909:   end
Chris@909: 
Chris@909:   # Returns true if the version is completed: due date reached and no open issues
Chris@909:   def completed?
Chris@909:     effective_date && (effective_date <= Date.today) && (open_issues_count == 0)
Chris@909:   end
Chris@909: 
Chris@909:   def behind_schedule?
Chris@909:     if completed_pourcent == 100
Chris@909:       return false
Chris@909:     elsif due_date && start_date
Chris@909:       done_date = start_date + ((due_date - start_date+1)* completed_pourcent/100).floor
Chris@909:       return done_date <= Date.today
Chris@909:     else
Chris@909:       false # No issues so it's not late
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the completion percentage of this version based on the amount of open/closed issues
Chris@909:   # and the time spent on the open issues.
Chris@909:   def completed_pourcent
Chris@909:     if issues_count == 0
Chris@909:       0
Chris@909:     elsif open_issues_count == 0
Chris@909:       100
Chris@909:     else
Chris@909:       issues_progress(false) + issues_progress(true)
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the percentage of issues that have been marked as 'closed'.
Chris@909:   def closed_pourcent
Chris@909:     if issues_count == 0
Chris@909:       0
Chris@909:     else
Chris@909:       issues_progress(false)
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Returns true if the version is overdue: due date reached and some open issues
Chris@909:   def overdue?
Chris@909:     effective_date && (effective_date < Date.today) && (open_issues_count > 0)
Chris@909:   end
Chris@909: 
Chris@909:   # Returns assigned issues count
Chris@909:   def issues_count
Chris@909:     @issue_count ||= fixed_issues.count
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the total amount of open issues for this version.
Chris@909:   def open_issues_count
Chris@909:     @open_issues_count ||= Issue.count(:all, :conditions => ["fixed_version_id = ? AND is_closed = ?", self.id, false], :include => :status)
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the total amount of closed issues for this version.
Chris@909:   def closed_issues_count
Chris@909:     @closed_issues_count ||= Issue.count(:all, :conditions => ["fixed_version_id = ? AND is_closed = ?", self.id, true], :include => :status)
Chris@909:   end
Chris@909: 
Chris@909:   def wiki_page
Chris@909:     if project.wiki && !wiki_page_title.blank?
Chris@909:       @wiki_page ||= project.wiki.find_page(wiki_page_title)
Chris@909:     end
Chris@909:     @wiki_page
Chris@909:   end
Chris@909: 
Chris@909:   def to_s; name end
Chris@909: 
Chris@909:   def to_s_with_project
Chris@909:     "#{project} - #{name}"
Chris@909:   end
Chris@909: 
Chris@909:   # Versions are sorted by effective_date and "Project Name - Version name"
Chris@909:   # Those with no effective_date are at the end, sorted by "Project Name - Version name"
Chris@909:   def <=>(version)
Chris@909:     if self.effective_date
Chris@909:       if version.effective_date
Chris@909:         if self.effective_date == version.effective_date
Chris@909:           "#{self.project.name} - #{self.name}" <=> "#{version.project.name} - #{version.name}"
Chris@909:         else
Chris@909:           self.effective_date <=> version.effective_date
Chris@909:         end
Chris@909:       else
Chris@909:         -1
Chris@909:       end
Chris@909:     else
Chris@909:       if version.effective_date
Chris@909:         1
Chris@909:       else
Chris@909:         "#{self.project.name} - #{self.name}" <=> "#{version.project.name} - #{version.name}"
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the sharings that +user+ can set the version to
Chris@909:   def allowed_sharings(user = User.current)
Chris@909:     VERSION_SHARINGS.select do |s|
Chris@909:       if sharing == s
Chris@909:         true
Chris@909:       else
Chris@909:         case s
Chris@909:         when 'system'
Chris@909:           # Only admin users can set a systemwide sharing
Chris@909:           user.admin?
Chris@909:         when 'hierarchy', 'tree'
Chris@909:           # Only users allowed to manage versions of the root project can
Chris@909:           # set sharing to hierarchy or tree
Chris@909:           project.nil? || user.allowed_to?(:manage_versions, project.root)
Chris@909:         else
Chris@909:           true
Chris@909:         end
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   private
Chris@909: 
Chris@909:   # Update the issue's fixed versions. Used if a version's sharing changes.
Chris@909:   def update_issues_from_sharing_change
Chris@909:     if sharing_changed?
Chris@909:       if VERSION_SHARINGS.index(sharing_was).nil? ||
Chris@909:           VERSION_SHARINGS.index(sharing).nil? ||
Chris@909:           VERSION_SHARINGS.index(sharing_was) > VERSION_SHARINGS.index(sharing)
Chris@909:         Issue.update_versions_from_sharing_change self
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the average estimated time of assigned issues
Chris@909:   # or 1 if no issue has an estimated time
Chris@909:   # Used to weigth unestimated issues in progress calculation
Chris@909:   def estimated_average
Chris@909:     if @estimated_average.nil?
Chris@909:       average = fixed_issues.average(:estimated_hours).to_f
Chris@909:       if average == 0
Chris@909:         average = 1
Chris@909:       end
Chris@909:       @estimated_average = average
Chris@909:     end
Chris@909:     @estimated_average
Chris@909:   end
Chris@909: 
Chris@909:   # Returns the total progress of open or closed issues.  The returned percentage takes into account
Chris@909:   # the amount of estimated time set for this version.
Chris@909:   #
Chris@909:   # Examples:
Chris@909:   # issues_progress(true)   => returns the progress percentage for open issues.
Chris@909:   # issues_progress(false)  => returns the progress percentage for closed issues.
Chris@909:   def issues_progress(open)
Chris@909:     @issues_progress ||= {}
Chris@909:     @issues_progress[open] ||= begin
Chris@909:       progress = 0
Chris@909:       if issues_count > 0
Chris@909:         ratio = open ? 'done_ratio' : 100
Chris@909: 
Chris@909:         done = fixed_issues.sum("COALESCE(estimated_hours, #{estimated_average}) * #{ratio}",
Chris@909:                                   :include => :status,
Chris@909:                                   :conditions => ["is_closed = ?", !open]).to_f
Chris@909:         progress = done / (estimated_average * issues_count)
Chris@909:       end
Chris@909:       progress
Chris@909:     end
Chris@909:   end
Chris@909: end