Django_杂

 

1、url带一些GET参数"url?a=1&b=2"，通过QueryDict以及其urlencode()进行处理

        from django.http.request import QueryDict
        param_dict = QueryDict(mutable=True)
        if request.GET:
            param_dict["_changelistfilter"] = request.GET.urlencode()
        base_add_url = reverse("{2}:{0}_{1}_add".format(self.app_label,self.model_name,self.site.namespace))
        add_url = "{0}?{1}".format(base_add_url,param_dict.urlencode())

 

QueryDict类型
page_param_dict = copy.deepcopy(request.GET)
page_param_dict._mutable = True

page_param_dict["k"] = "v"

 

2、在html引入static里的文件，不用写死

STATIC_URL = '/static/'
settings.py
{% load static %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="{% static 'yg/plugins/bootstrap-3.3.7-dist/css/bootstrap-theme.css' %}" >
</head>
html

 

3、获取request源ip

有些网站服务器会使用ngix等代理http，或者是该网站做了负载均衡，导致使用remote_addr抓取到的是1270.0.1，这时使用HTTP_X_FORWARDED_FOR才获得是用户的真实IP。

if request.META.has_key('HTTP_X_FORWARDED_FOR'):
    ip =  request.META['HTTP_X_FORWARDED_FOR']
else:
    ip = request.META['REMOTE_ADDR']

 

4 django回退migrations

# 查看migrations
python manage.py showmigrations
'''
dms_srv
 [X] 0001_initial
 [X] 0002_event
 [X] 0003_auto_20191023_0622
 [X] 0004_auto_20191023_0636
 [X] 0005_event_status
 [X] 0006_deviceinfo_remark
'''

# 回退到005，使用fake欺骗django，此时在migrations文件夹是能看见0006的
python manage.py migrate dms_srv 0005_event_status --fake
'''
dms_srv
 [X] 0001_initial
 [X] 0002_event
 [X] 0003_auto_20191023_0622
 [X] 0004_auto_20191023_0636
 [X] 0005_event_status
 [] 0006_deviceinfo_remark
'''

# 重新migrate
python manage.py migrate dms_srv
完成

 

posted @ 2018-11-09 13:36  fat39  阅读(138)  评论(0)  编辑  收藏  举报