Add profiling support to Melange. By assigning profile_main_as_logs or profile_main_as_html to main variable you can turn on profiling. profile_main_as_logs will log profile data to App Engine console logs, profile_main_as_html will show profile data as html at the bottom of the page. If you want to profile app on deployed app just set the profiling function and deploy it.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
from django.db import transaction
class TransactionMiddleware(object):
"""
Transaction middleware. If this is enabled, each view function will be run
with commit_on_response activated - that way a save() doesn't do a direct
commit, the commit is done when a successful response is created. If an
exception happens, the database is rolled back.
"""
def process_request(self, request):
"""Enters transaction management"""
transaction.enter_transaction_management()
transaction.managed(True)
def process_exception(self, request, exception):
"""Rolls back the database and leaves transaction management"""
if transaction.is_dirty():
transaction.rollback()
transaction.leave_transaction_management()
def process_response(self, request, response):
"""Commits and leaves transaction management."""
if transaction.is_managed():
if transaction.is_dirty():
transaction.commit()
transaction.leave_transaction_management()
return response