本文整理匯總了Python中chellow.models.Session.expunge方法的典型用法代碼示例。如果您正苦於以下問題：Python Session.expunge方法的具體用法？Python Session.expunge怎麽用？Python Session.expunge使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類chellow.models.Session的用法示例。
在下文中一共展示了Session.expunge方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: run
# 需要導入模塊: from chellow.models import Session [as 別名]
# 或者: from chellow.models.Session import expunge [as 別名]
def run(self):
sess = None
try:
self._log(
"Starting to parse the file with '" + self.parser_name + "'.")
sess = Session()
g_batch = GBatch.get_by_id(sess, self.g_batch_id)
raw_bills = self.parser.make_raw_bills()
self._log(
"Successfully parsed the file, and now I'm starting to "
"insert the raw bills.")
for self.bill_num, raw_bill in enumerate(raw_bills):
try:
bill_type = BillType.get_by_code(
sess, raw_bill['bill_type_code'])
g_bill = g_batch.insert_g_bill(
sess, bill_type, raw_bill['mprn'],
raw_bill['reference'], raw_bill['account'],
raw_bill['issue_date'], raw_bill['start_date'],
raw_bill['finish_date'], raw_bill['kwh'],
raw_bill['net_gbp'], raw_bill['vat_gbp'],
raw_bill['gross_gbp'], raw_bill['raw_lines'],
raw_bill['breakdown'])
sess.flush()
for raw_read in raw_bill['reads']:
prev_type = GReadType.get_by_code(
sess, raw_read['prev_type_code'])
pres_type = GReadType.get_by_code(
sess, raw_read['pres_type_code'])
g_units = GUnits.get_by_code(sess, raw_read['units'])
g_read = g_bill.insert_g_read(
sess, raw_read['msn'], raw_read['prev_value'],
raw_read['prev_date'], prev_type,
raw_read['pres_value'], raw_read['pres_date'],
pres_type, g_units, raw_read['correction_factor'],
raw_read['calorific_value'])
sess.expunge(g_read)
sess.commit()
self.successful_bills.append(raw_bill)
sess.expunge(g_bill)
except BadRequest as e:
sess.rollback()
raw_bill['error'] = e.description
self.failed_bills.append(raw_bill)
if len(self.failed_bills) == 0:
self._log(
"All the bills have been successfully loaded and attached "
"to the batch.")
else:
self._log(
"The import has finished, but " +
str(len(self.failed_bills)) + " bills failed to load.")
except:
self._log("I've encountered a problem: " + traceback.format_exc())
finally:
if sess is not None:
sess.close()