blob: 0af1f54338ba3c2158bfd8bc03fda889792c8d22 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
import sqlite3
import os.path
import logging
from ._base import get_data_root_directory
from ..config import config, is_development_mode
def _get_database_path(name: str) -> str:
return os.path.join(
get_data_root_directory(),
f'{name}.db')
class SQLiteBase:
SCHEMA = 1
def __init__(self, name=None, check_same_thread=False):
if name is None:
name = config.app_config['database_name']
database_path = _get_database_path(name)
if not os.path.exists(os.path.dirname(database_path)):
os.makedirs(os.path.dirname(database_path))
self.logger = logging.getLogger(self.__class__.__name__)
self.sqlite = sqlite3.connect(database_path, check_same_thread=check_same_thread)
if is_development_mode():
self.sql_logger = logging.getLogger(self.__class__.__name__)
self.sql_logger.setLevel('TRACE')
self.sqlite.set_trace_callback(self.sql_logger.trace)
sqlite_version = self._get_sqlite_version()
self.logger.debug(f'SQLite version: {sqlite_version}')
schema_version = self.schema_get_version()
self.logger.debug(f'Schema version: {schema_version}')
self.schema_init(schema_version)
self.schema_set_version(self.SCHEMA)
def __del__(self):
if self.sqlite:
self.sqlite.commit()
self.sqlite.close()
def _get_sqlite_version(self) -> str:
cursor = self.sqlite.cursor()
cursor.execute("SELECT sqlite_version()")
return cursor.fetchone()[0]
def schema_get_version(self) -> int:
cursor = self.sqlite.execute('PRAGMA user_version')
return int(cursor.fetchone()[0])
def schema_set_version(self, v) -> None:
self.sqlite.execute('PRAGMA user_version={:d}'.format(v))
self.logger.info(f'Schema set to {v}')
def cursor(self) -> sqlite3.Cursor:
return self.sqlite.cursor()
def commit(self) -> None:
return self.sqlite.commit()
def schema_init(self, version: int) -> None:
raise ValueError(f'{self.__class__.__name__}: must override schema_init')
|
