def visit(request, landing_hash):
redirection = Redirection.all().filter('landing_hash =',
landing_hash).get()
if redirection:
# check if the person has already visited
previous_visit = Visit.all().filter(
'ip =',
request.META["REMOTE_ADDR"]).filter('redirection =',
redirection).get()
if previous_visit and ip_checking:
# they're going to the place they went last time
target = previous_visit.target
else:
if isinstance(redirection, StratifiedRedirection):
# find the last visited URL
this_target_index = (redirection.last_target_index + 1) % len(
list(redirection.target_set))
target = list(
redirection.target_set
)[this_target_index] # TODO: is order preserved? also, is there a more efficient way?
redirection.last_target_index = this_target_index
redirection.put()
else:
target = random.choice(list(redirection.target_set))
# append any URL parameters to the URL
reconstructed_url = combine_queries(str(target.url), request.GET)
# record visit
visit = Visit(redirection=redirection,
target=target,
ip=request.META["REMOTE_ADDR"])
visit.put()
return HttpResponseRedirect(reconstructed_url)
def visit(request, landing_hash):
redirection = Redirection.all().filter('landing_hash =', landing_hash).get()
if redirection:
# check if the person has already visited
previous_visit = Visit.all().filter('ip =', request.META["REMOTE_ADDR"]).filter('redirection =', redirection).get()
if previous_visit and ip_checking:
# they're going to the place they went last time
target = previous_visit.target
else:
if isinstance(redirection, StratifiedRedirection):
# find the last visited URL
this_target_index = (redirection.last_target_index + 1) % len(list(redirection.target_set))
target = list(redirection.target_set)[this_target_index] # TODO: is order preserved? also, is there a more efficient way?
redirection.last_target_index = this_target_index
redirection.put()
else:
target = random.choice(list(redirection.target_set))
# append any URL parameters to the URL
reconstructed_url = combine_queries(str(target.url), request.GET)
# record visit
visit = Visit(redirection = redirection, target = target, ip = request.META["REMOTE_ADDR"])
visit.put()
return HttpResponseRedirect(reconstructed_url)
def create_randomization(request, d):
# input schema:
# {'experiment_name': str, 'targets': ['url1', 'url2', 'url3', ...], 'stratify': bool}
if len(d['targets']) == 0:
return HttpResponseNotFound('You must enter at least one URL.')
redirection = Redirection(experiment_name = d['experiment_name'],
landing_hash = create_hash(),
admin_hash = create_hash(),
is_stratified = d.get('stratify') == True)
redirection.save()
for url in d["targets"]:
try:
target = Target(url = url, redirection = redirection)
target.save()
except forms.ValidationError:
return HttpResponseNotFound('One or more of the target URLs you entered were malformed.')
return {'landing_url': make_landing_url(redirection.landing_hash),
'admin_url': make_admin_url(redirection.admin_hash)}
def admin(request, admin_hash):
redirection = Redirection.all().filter('admin_hash =', admin_hash).get()
if redirection:
# targets should be a list of dicts with stats on the different targets.
if isinstance(redirection, StratifiedRedirection):
method = 'Stratify'
else:
method = 'Randomize'
targets = []
for target in list(redirection.target_set):
num_visits = Visit.all().filter('redirection =', redirection).filter('target =', target).count()
targets.append({'url': target.url, 'num_visits': num_visits})
return render_to_response('admin.html',
{'method': method,
'targets': targets,
'landing_url': make_landing_url(redirection.landing_hash)})
def admin(request, admin_hash):
redirection = Redirection.all().filter('admin_hash =', admin_hash).get()
if redirection:
# targets should be a list of dicts with stats on the different targets.
if isinstance(redirection, StratifiedRedirection):
method = 'Stratify'
else:
method = 'Randomize'
targets = []
for target in list(redirection.target_set):
num_visits = Visit.all().filter('redirection =',
redirection).filter(
'target =', target).count()
targets.append({'url': target.url, 'num_visits': num_visits})
return render_to_response(
'admin.html', {
'method': method,
'targets': targets,
'landing_url': make_landing_url(redirection.landing_hash)
})