# Time 2015-02-06 10:42:34
# Author lizanle
# Description 这是保存Project相关的动态的公共表
class ForgeActivity < ActiveRecord::Base
  # 公共表中活动类型,命名规则:TYPE_OF_{类名}_ACT
  TYPE_OF_ISSUE_ACT = "Issue"
  TYPE_OF_MESSAGE_ACT = "Message"
  TYPE_OF_ATTACHMENT_ACT = "Attachment"
  TYPE_OF_DOCUMENT_ACT = "Document"
  TYPE_OF_JOURNAL_ACT = "Journal"
  TYPE_OF_WIKI_ACT = "Wiki"
  TYPE_OF_NEWS_ACT = "News"
  attr_accessible :forge_act_id, :forge_act_type,:project_id,:user_id,:org_id
  # 虚拟关联
  belongs_to :forge_act ,:polymorphic => true
  belongs_to :project
  belongs_to :user
  validates :user_id,presence: true
  validates :project_id,presence: true
  validates :forge_act_id,presence: true
  validates :forge_act_type, presence: true
  has_many :user_acts, :class_name => 'UserAcivity',:as =>:act
  after_save :add_user_activity
  before_destroy :destroy_user_activity

  #在个人动态里面增加当前动态
  def add_user_activity
    user_activity = UserActivity.where("act_type = '#{self.class.to_s}' and act_id = '#{self.id}'").first
    if user_activity
      user_activity.save
    else
      user_activity = UserActivity.new
      user_activity.act_id = self.forge_act_id
      user_activity.act_type = self.forge_act_type
      user_activity.container_type = "Project"
      user_activity.container_id = self.project_id
      user_activity.save
    end
  end

  def destroy_user_activity
    user_activity = UserActivity.where("act_type = '#{self.class.to_s}' and act_id = '#{self.id}'")
    user_activity.destroy_all
  end
end