statement_admin/app/models/wa_id_department.rb

# encoding:utf-8
class WaIdDepartment < ActiveRecord::Base
  has_paper_trail
  self.table_name = "wa_id_departments"
  # belongs_to :project, :foreign_key => :project_id
  def user_names
    names = ""
    sql = "select uname from wa_id_users where department_id = #{self.id}"
    usernames = WaIdUser.find_by_sql(sql)
    usernames.each do |u|
        names = names + u.uname + ','
    end
    return names
  end

  rails_admin do
    navigation_label '报表权限管理系统'
    parent WaIdUser
    weight -150

    list do
        filters [:id]
        field :id
        field :name
        field :user_names
    end

    show do
        field :id
        field :name
        field :user_names
        field :created_at
        field :updated_at
    end

    edit do
        field :name
    end
  end
end