admin显示
https://www.runoob.com/django/django-admin-manage-tool.html
https://www.cnblogs.com/liu--huan/articles/10548050.html
分页
https://www.cnblogs.com/donghaiming/p/11007505.html
filter 或关系
https://blog.csdn.net/guan__ye/article/details/80053744
manytomany
https://www.cnblogs.com/lovershowtime/p/11361198.html
要加上一定属性的话
使用through
https://blog.csdn.net/zhaoyingm/article/details/8652471?utm_source=distribute.pc_relevant.none-task
修改后直接migrate是不行的
需要先删除这个字段做migrate，之后再加上做一次
https://my.oschina.net/bestraven/blog/870562
去重
.distinct()