class Task < ActiveRecord::Base has_many :assignments, :dependent => :destroy has_many :users, :through => :assignments belongs_to :workgroup named_scope :non_group, :conditions => { :workgroup_id => nil, :done => false } named_scope :done, :conditions => {:done => true}, :order => "due_date DESC" named_scope :upcoming, lambda { |*args| {:conditions => ["done = 0 AND due_date = ?", (args.first || 7.days.from_now)]} } # form will send user in string. responsibilities will added later attr_protected :users validates_length_of :name, :minimum => 3 validates_numericality_of :duration, :required_users, :only_integer => true, :greater_than => 1 after_save :update_ordergroup_stats def is_assigned?(user) self.assignments.detect {|ass| ass.user_id == user.id } end def is_accepted?(user) self.assignments.detect {|ass| ass.user_id == user.id && ass.accepted } end def enough_users_assigned? assignments.find_all_by_accepted(true).size >= required_users ? true : false end # extracts nicknames from a comma seperated string # and makes the users responsible for the task def user_list=(string) @user_list = string.split(%r{,\s*}) new_users = @user_list - users.collect(&:nick) old_users = users.reject { |user| @user_list.include?(user.nick) } logger.debug "New users: #{new_users}" logger.debug "Old users: #{old_users}" self.class.transaction do # delete old assignments if old_users.any? assignments.find(:all, :conditions => ["user_id IN (?)", old_users.collect(&:id)]).each(&:destroy) end # create new assignments new_users.each do |nick| user = User.find_by_nick(nick) if user.blank? errors.add(:user_list) else if user == User.current_user # current_user will accept, when he puts himself to the list of users self.assignments.build :user => user, :accepted => true else # normal assignement self.assignments.build :user => user end end end end end def user_list @user_list ||= users.collect(&:nick).join(", ") end private def update_ordergroup_stats if done users.each { |u| u.ordergroup.update_stats! if u.ordergroup } end end end # == Schema Information # # Table name: tasks # # id :integer(4) not null, primary key # name :string(255) default(""), not null # description :string(255) # due_date :date # done :boolean(1) default(FALSE) # workgroup_id :integer(4) # assigned :boolean(1) default(FALSE) # created_on :datetime not null # updated_on :datetime not null # required_users :integer(4) default(1) # weekly :boolean(1) # duration :integer(4) default(1) #