你可以自定义一个MiddleWare类,然后在settings.py引用这个中间件,添加到MIDDLEWARE_CLASSES里,然后在公共模板里添显示代码即可。
添加到公共模板里的代码:
<div id="stats"><!-- STATS: Total: %(totTime).2fs <br/>Python: %(pyTime).2fs <br/>DB: %(dbTime).2fs <br/>Queries: %(queries)d --></div>
StatsMiddleware 中间件代码
from django.db import connection from time import time from operator import add import re class StatsMiddleware(object): def process_view(self, request, view_func, view_args, view_kwargs): """ In your base template, put this: {% if debug %} <div id="stats"><!-- STATS: Total: %(totTime).2fs <br/> Python: %(pyTime).2fs <br/> DB: %(dbTime).2fs <br/> Queries: %(queries)d --></div> {% endif %} Here's the css style I use: #stats { background-color: #ddd; font-size: 65%; padding: 5px; z-index: 1000; position: absolute; right: 5px; top: 5px; -moz-opacity: .7; opacity: .7;} """ #This stuff will only happen if debug is already on if not settings.DEBUG: return None # get number of db queries before we do anything n = len(connection.queries) # time the view start = time() response = view_func(request, *view_args, **view_kwargs) totTime = time() - start # compute the db time for the queries just run queries = len(connection.queries) - n if queries: dbTime = reduce(add, [float(q['time']) for q in connection.queries[n:]]) else: dbTime = 0.0 # and backout python time pyTime = totTime - dbTime stats = { 'totTime': totTime, 'pyTime': pyTime, 'dbTime': dbTime, 'queries': queries, } # replace the comment if found if response and response.content: s = response.content regexp = re.compile(r'(?P<cmt><!--\s*STATS:(?P<fmt>.*?)-->)') match = regexp.search(s) if match: s = s[:match.start('cmt')] + \ match.group('fmt') % stats + \ s[match.end('cmt'):] response.content = s return response
保存为:statsmiddleware.py,
然后添加到settings.py的MIDDLEWARE_CLASSES里