本文整理汇总了Python中DBUtils.SteadyDB.connect.rollback方法的典型用法代码示例。如果您正苦于以下问题：Python connect.rollback方法的具体用法？Python connect.rollback怎么用？Python connect.rollback使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DBUtils.SteadyDB.connect的用法示例。
在下文中一共展示了connect.rollback方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test04_Connection
# 需要导入模块: from DBUtils.SteadyDB import connect [as 别名]
# 或者: from DBUtils.SteadyDB.connect import rollback [as 别名]
#.........这里部分代码省略.........
self.assert_(hasattr(db._con, 'database'))
self.assertEqual(db._con.database, 'SteadyDBTestDB')
self.assert_(hasattr(db._con, 'user'))
self.assertEqual(db._con.user, 'SteadyDBTestUser')
self.assert_(hasattr(db, 'cursor'))
self.assert_(hasattr(db, 'close'))
self.assertEqual(db._con.open_cursors, 0)
for i in range(3):
cursor = db.cursor()
self.assertEqual(db._con.open_cursors, 1)
cursor.close()
self.assertEqual(db._con.open_cursors, 0)
cursor = []
for i in range(3):
cursor.append(db.cursor())
self.assertEqual(db._con.open_cursors, i + 1)
del cursor
self.assertEqual(db._con.open_cursors, 0)
cursor = db.cursor()
self.assert_(hasattr(cursor, 'execute'))
self.assert_(hasattr(cursor, 'fetchone'))
self.assert_(hasattr(cursor, 'callproc'))
self.assert_(hasattr(cursor, 'close'))
self.assert_(hasattr(cursor, 'valid'))
self.assert_(cursor.valid)
self.assertEqual(db._con.open_cursors, 1)
for i in range(3):
self.assertEqual(db._usage, i)
self.assertEqual(db._con.num_uses, i)
self.assertEqual(db._con.num_queries, i)
cursor.execute('select test%d' % i)
self.assertEqual(cursor.fetchone(), 'test%d' % i)
self.assert_(cursor.valid)
self.assertEqual(db._con.open_cursors, 1)
for i in range(4):
cursor.callproc('test')
cursor.close()
self.assert_(not cursor.valid)
self.assertEqual(db._con.open_cursors, 0)
self.assertEqual(db._usage, 7)
self.assertEqual(db._con.num_uses, 7)
self.assertEqual(db._con.num_queries, 3)
cursor.close()
cursor.execute('select test8')
self.assert_(cursor.valid)
self.assertEqual(db._con.open_cursors, 1)
self.assertEqual(cursor.fetchone(), 'test8')
self.assertEqual(db._usage, 8)
self.assertEqual(db._con.num_uses, 8)
self.assertEqual(db._con.num_queries, 4)
self.assert_(db._con.valid)
db.close()
self.assert_(not db._con.valid)
self.assertEqual(db._con.open_cursors, 0)
self.assertEqual(db._usage, 8)
self.assertEqual(db._con.num_uses, 0)
self.assertEqual(db._con.num_queries, 0)
self.assertRaises(InternalError, db._con.close)
db.close()
self.assertRaises(InternalError, db._con.cursor)
cursor = db.cursor()
self.assert_(db._con.valid)
cursor.execute('select test11')
self.assertEqual(cursor.fetchone(), 'test11')
cursor.execute('select test12')
self.assertEqual(cursor.fetchone(), 'test12')
cursor.callproc('test')
self.assertEqual(db._usage, 3)
self.assertEqual(db._con.num_uses, 3)
self.assertEqual(db._con.num_queries, 2)
cursor2 = db.cursor()
self.assertEqual(db._con.open_cursors, 2)
cursor2.execute('select test13')
self.assertEqual(cursor2.fetchone(), 'test13')
self.assertEqual(db._con.num_queries, 3)
db.close()
self.assertEqual(db._con.open_cursors, 0)
self.assertEqual(db._con.num_queries, 0)
cursor = db.cursor()
self.assert_(cursor.valid)
cursor.callproc('test')
cursor._cursor.valid = False
self.assert_(not cursor.valid)
self.assertRaises(InternalError, cursor._cursor.callproc, 'test')
cursor.callproc('test')
self.assert_(cursor.valid)
cursor._cursor.callproc('test')
self.assertEqual(db._usage, 2)
self.assertEqual(db._con.num_uses, 3)
db._con.valid = cursor._cursor.valid = False
cursor.callproc('test')
self.assert_(cursor.valid)
self.assertEqual(db._usage, 1)
self.assertEqual(db._con.num_uses, 1)
cursor.execute('set doit')
db.commit()
cursor.execute('set dont')
db.rollback()
self.assertEqual(db._con.session,
['doit', 'commit', 'dont', 'rollback'])