def __call__(self, environ, start_response):
environ['paste.transaction_manager'] = manager = Manager()
# This makes sure nothing else traps unexpected exceptions:
environ['paste.throw_errors'] = True
return catch_errors(self.application, environ, start_response,
error_callback=manager.error,
ok_callback=manager.finish)
def basic_transaction(environ, start_response):
conn = factory(environ)
environ['paste.connection'] = conn
should_commit = [500]
def finalizer(exc_info=None):
if exc_info:
if isinstance(exc_info[1], HTTPException):
should_commit.append(exc_info[1].code)
if should_commit.pop() < 400:
conn.commit()
else:
try:
conn.rollback()
except:
# TODO: check if rollback has already happened
return
conn.close()
def basictrans_start_response(status, headers, exc_info = None):
should_commit.append(int(status.split(" ")[0]))
return start_response(status, headers, exc_info)
return catch_errors(application, environ, basictrans_start_response,
finalizer, finalizer)
