add bind user function

db/migrate/20201124114698_create_bind_users.rb

@@ -21,6 +21,12 @@ class CreateBindUsers < ActiveRecord::Migration
       t.column :user_no, :string, :limit=>128
       #邀请人编号
       t.column :invite_no,:string, :limit=>128
+      #等级
+      t.column :dengji,:string, :limit=>128
+      #群主标记
+      t.column :show_invite_mode, :boolean, :default=>0
+      #群主
+      t.column :rank, :integer, :null=>false
       t.timestamps
     end
     add_index :bind_users, :wx_uid