fohow_admin/db/migrate/20161017200006_create_channel_qrcodes.rb

# encoding:utf-8
class CreateChannelQrcodes < ActiveRecord::Migration
  def self.up
    create_table :channel_qrcodes do |t|

      t.column   :wx_gongzhonghao_id,   :integer, :null => false
      #相关注册渠道
      t.column   :parent_sign_up_channel_id,   :integer
      t.column   :scene_id,   :integer, :default => 0
      #场景字符串
      t.column   :scene_str,   :string, :limit=>64
      # 是否永久
      t.boolean :is_permanent, :default => false
      # 描述
      t.column   :remark, :text,  :null => false
      # 二维码图片地址
      t.column   :qrcode_img, :text #有效期
      t.column :expired_at, :datetime
      #被扫了多少次
      t.column   :scan_times,   :integer, :default => 0
      # 扫描后的推送
      t.column   :push_after_sub_id,   :integer, :default => 0
      #渠道外链-增加客服wx_id
      # t.column :cs_wx_uid, :integer, :default=>0 
      #邀请人wx_id
      # t.column :invite_wx_uid, :integer, :default=>0
      t.timestamps
    end

    add_index :channel_qrcodes, :expired_at

    create_table :channel_qrcode_results do |t|
      t.column   :mp_openid,  :string, :default => 0
      t.column  :channel_qrcode_id, :integer
      t.timestamps
    end
    add_index :channel_qrcode_results, :mp_openid
    add_index :channel_qrcode_results, :channel_qrcode_id
    add_index :channel_qrcode_results, [:mp_openid,:channel_qrcode_id], :unique => true, :name=>"idx_cq_result_openid_and_cq_id"
  end

  def self.down
    drop_table :channel_qrcodes
    drop_table :channel_qrcode_results
  end
end