socialforge/app/models/applied_project.rb

class AppliedProject < ActiveRecord::Base
  attr_accessible :project_id, :user_id, :role

  belongs_to :user
  belongs_to :project
  has_many :applied_messages, :class_name => 'AppliedMessage', :as => :applied, :dependent => :destroy

  after_create :send_appliled_message

  # 仅仅给项目管理人员发送消息
  def send_appliled_message
    self.project.managers.each do |member|
      self.applied_messages << AppliedMessage.new(:user_id => member.user_id, :status => true, :viewed => false, :applied_user_id => self.user_id, :role => self.role, :project_id => self.project_id)
    end
    # end
  end

  #删除用户申请
  def self.deleteappiled(userid, projectid)
    @applieds = AppliedProject.where("user_id = ? and project_id = ?", userid, projectid)
    @applieds.each do |applied|
      applied.destroy
    end
  end
end