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import logging
from django.conf import settings
from askbot.views.readers import questions as questions_view
from askbot.views.commands import vote
from django.views.static import serve
from askbot.views.writers import delete_comment, question_comments, answer_comments
from askbot.views.readers import question_revisions, answer_revisions
#todo: the list is getting bigger and bigger - maybe there is a better way to
#trigger reset of sarch state?
IGNORED_VIEWS = (serve, vote, delete_comment,
question_comments, answer_comments,
question_revisions, answer_revisions)
class ViewLog(object):
"""must be modified only in this middlware
however, can be read anywhere else
"""
def __init__(self):
self.views = []
self.depth = 3 #todo maybe move this to const.py
def get_previous(self, num):
if num > self.depth - 1:
raise Exception("view log depth exceeded")
elif num < 0:
raise Exception("num must be positive");
elif num <= len(self.views) - 1:
return self.views[num]
else:
return None
def set_current(self, view_name):
self.views.insert(0, view_name)
if len(self.views) > self.depth:
self.views.pop()
def __str__(self):
return str(self.views) + ' depth=%d' % self.depth
class ViewLogMiddleware(object):
def process_view(self, request, view_func, view_args, view_kwargs):
if view_func == questions_view:
view_str = 'questions'
elif view_func in IGNORED_VIEWS:
return
else:
view_str = view_func.__name__
if view_str == 'wrap':
return
if settings.DEBUG == True:
#todo: dependency!
from debug_toolbar.views import debug_media as debug_media_view
if view_func == debug_media_view:
return
else:
view_str = view_func.__name__
if request.user.is_authenticated():
user_name = request.user.username
else:
user_name = request.META['REMOTE_ADDR']
logging.debug('user %s, view %s' % (request.user.username, view_str))
logging.debug('next url is %s' % request.REQUEST.get('next','nothing'))
if 'view_log' in request.session:
view_log = request.session['view_log']
else:
view_log = ViewLog()
view_log.set_current(view_str)
request.session['view_log'] = view_log
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