app/django/middleware/transaction.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Sat, 31 Jan 2009 22:23:23 +0000
changeset 1132 046668855732
parent 54 03e267d67478
permissions -rw-r--r--
Replace name_on_certificates property with name_on_documents, since mentors, club admins, hosts and org admins don't get certificates it's better to name it 'Name on documents' which can indicate any kind of documents including awards certificates. Also don't show name_on_documents in public Role profiles, instead show user public name in that place. 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