Django calculates detailed execution time for each page through middleware

You can customize a middleware class, then reference the middleware in settings.py, add it to the middleware_classes, and then display the code in the public template.

Code added to the public template:

<div id= "stats" ><!--stats:total:% (tottime). 2FS <br/>python:% (pytime). 2fs<br/>db:% (dbTime). 2FS <br/>queries:% (Queries) d--></div>

Statsmiddleware Middleware Code

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 {font-size:65%; padding:5px;

z-index:1000; Position:absolute; right:5px; top:5px;

-moz-opacity:. 7; Opacity:. 7;}

"""

#This stuff would only happen if debug are 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

Save As: statsmiddleware.py,
and add it to Settings.py's middleware_classes.

Article reprint: http://www.sharejs.com/codes/python/8638

Django calculates detailed execution time for each page through middleware