new_contents: # -*- coding: utf-8 -*-
  from __future__ import unicode_literals
  
  from django.db import models, migrations
  import commonrepo.groups.models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('groups', '0006_group_logo'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='group',
              name='logo',
              field=models.ImageField(upload_to=commonrepo.groups.models.groups_get_random_filename, verbose_name='Logo of Group', blank=True),
          ),
      ]
  
subject: 更新 models Group, 將 logo 欄位改用 groups_get_random_filename() 來處理儲存位置