Chris@0: # redMine - project management software
Chris@0: # Copyright (C) 2006-2008  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@0: # 
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@0: # 
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: class TimeEntry < ActiveRecord::Base
Chris@0:   # could have used polymorphic association
Chris@0:   # project association here allows easy loading of time entries at project level with one database trip
Chris@0:   belongs_to :project
Chris@0:   belongs_to :issue
Chris@0:   belongs_to :user
Chris@0:   belongs_to :activity, :class_name => 'TimeEntryActivity', :foreign_key => 'activity_id'
Chris@0:   
Chris@0:   attr_protected :project_id, :user_id, :tyear, :tmonth, :tweek
Chris@0: 
Chris@0:   acts_as_customizable
Chris@0:   acts_as_event :title => Proc.new {|o| "#{l_hours(o.hours)} (#{(o.issue || o.project).event_title})"},
chris@37:                 :url => Proc.new {|o| {:controller => 'timelog', :action => 'index', :project_id => o.project, :issue_id => o.issue}},
Chris@0:                 :author => :user,
Chris@0:                 :description => :comments
Chris@0: 
Chris@0:   acts_as_activity_provider :timestamp => "#{table_name}.created_on",
Chris@0:                             :author_key => :user_id,
Chris@0:                             :find_options => {:include => :project} 
Chris@0: 
Chris@0:   validates_presence_of :user_id, :activity_id, :project_id, :hours, :spent_on
Chris@0:   validates_numericality_of :hours, :allow_nil => true, :message => :invalid
Chris@0:   validates_length_of :comments, :maximum => 255, :allow_nil => true
Chris@0: 
Chris@0:   def after_initialize
Chris@0:     if new_record? && self.activity.nil?
Chris@0:       if default_activity = TimeEntryActivity.default
Chris@0:         self.activity_id = default_activity.id
Chris@0:       end
Chris@0:       self.hours = nil if hours == 0
Chris@0:     end
Chris@0:   end
Chris@0:   
Chris@0:   def before_validation
Chris@0:     self.project = issue.project if issue && project.nil?
Chris@0:   end
Chris@0:   
Chris@0:   def validate
Chris@0:     errors.add :hours, :invalid if hours && (hours < 0 || hours >= 1000)
Chris@0:     errors.add :project_id, :invalid if project.nil?
Chris@0:     errors.add :issue_id, :invalid if (issue_id && !issue) || (issue && project!=issue.project)
Chris@0:   end
Chris@0:   
Chris@0:   def hours=(h)
Chris@0:     write_attribute :hours, (h.is_a?(String) ? (h.to_hours || h) : h)
Chris@0:   end
Chris@0:   
Chris@0:   # tyear, tmonth, tweek assigned where setting spent_on attributes
Chris@0:   # these attributes make time aggregations easier
Chris@0:   def spent_on=(date)
Chris@0:     super
Chris@0:     self.tyear = spent_on ? spent_on.year : nil
Chris@0:     self.tmonth = spent_on ? spent_on.month : nil
Chris@0:     self.tweek = spent_on ? Date.civil(spent_on.year, spent_on.month, spent_on.day).cweek : nil
Chris@0:   end
Chris@0:   
Chris@0:   # Returns true if the time entry can be edited by usr, otherwise false
Chris@0:   def editable_by?(usr)
Chris@0:     (usr == user && usr.allowed_to?(:edit_own_time_entries, project)) || usr.allowed_to?(:edit_time_entries, project)
Chris@0:   end
Chris@0:   
Chris@0:   def self.visible_by(usr)
Chris@0:     with_scope(:find => { :conditions => Project.allowed_to_condition(usr, :view_time_entries) }) do
Chris@0:       yield
Chris@0:     end
Chris@0:   end
chris@22: 
chris@22:   def self.earilest_date_for_project(project=nil)
chris@22:     finder_conditions = ARCondition.new(Project.allowed_to_condition(User.current, :view_time_entries))
chris@22:     if project
chris@22:       finder_conditions << ["project_id IN (?)", project.hierarchy.collect(&:id)]
chris@22:     end
chris@22:     TimeEntry.minimum(:spent_on, :include => :project, :conditions => finder_conditions.conditions)
chris@22:   end
chris@22: 
chris@22:   def self.latest_date_for_project(project=nil)
chris@22:     finder_conditions = ARCondition.new(Project.allowed_to_condition(User.current, :view_time_entries))
chris@22:     if project
chris@22:       finder_conditions << ["project_id IN (?)", project.hierarchy.collect(&:id)]
chris@22:     end
chris@22:     TimeEntry.maximum(:spent_on, :include => :project, :conditions => finder_conditions.conditions)
chris@22:   end
Chris@0: end