pgfqe6ch8/app/models/competition_team.rb

#encoding: utf-8
class CompetitionTeam < ActiveRecord::Base
  belongs_to :user
  belongs_to :competition
  has_many :team_members, :dependent => :destroy
  has_many :competition_scores, :dependent => :destroy
  # team_type  0：组队  1：个人
  # attr_accessible :invite_code, :name, :team_type

  def teacher
    User.where(:id => self.teacher_id).first
  end

  def group_members
    str = ""
    self.team_members.where(:is_teacher => 0).joins("join users on team_members.user_id = users.id").order("CONVERT(lastname USING gbk) COLLATE gbk_chinese_ci asc").each do |member|
      str = str == "" ? member.user.show_real_name : (str + "、" + member.user.show_real_name)
    end
    str
  end
end