py.lib: a1729effde3c awNet/db/sqlite.py

1 # -*- coding: utf-8 -*-

2 # Dep

3 from sqlite3 import connect as _sqlite_connect

4 # Exceptions

5 from sqlite3 import Warning, Error, DatabaseError, IntegrityError, ProgrammingError

7 # --- # PROCS # --- #

8 def GetDB(db_file):

9 def func():

10 return DB(db_file)

11 return func

13 # --- # CLASS # --- #

14 class DB:

15 def __init__(self, db_file):

16 self._con = None

17 self._con = _sqlite_connect(db_file)

18 self.q = self._con.execute

19 self.qm = self._con.executemany

20 self.commit = self._con.commit

21 self.rollback = self._con.rollback

23 # DB PREP

24 self.cq("PRAGMA journal=WAL")

26 def __call__(self, *a, **wa):

27 return self.q(*a, **wa)

29 def __del__(self):

30 if self._con == None: return

31 try:

32 self.rollback()

33 self._con.close()

34 except Error:

35 pass

36 except Warning:

37 pass

39 def cq(self, *a, **wa):

40 try:

41 res = self.q(*a, **wa)

42 self.commit()

43 return res

44 except Exception as e:

45 self.rollback()

46 raise e

48 def cqm(self, *a, **wa):

49 try:

50 res = self.qm(*a, **wa)

51 self.commit()

52 return res

53 except Exception as e:

54 self.rollback()

55 raise e

py.lib

py.lib/awNet/db/sqlite.py