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6ecfff56c5
I've corrected some obvious issues, and we can fix others over time. Mypy tests are currently broken, as adding the type hints has increased mypy's testing surface.
114 lines
3.1 KiB
Python
114 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright: Ankitects Pty Ltd and contributors
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# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import os
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import time
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from sqlite3 import dbapi2 as sqlite, Cursor
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from typing import Any, List
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DBError = sqlite.Error
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class DB:
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def __init__(self, path, timeout=0) -> None:
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self._db = sqlite.connect(path, timeout=timeout)
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self._db.text_factory = self._textFactory
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self._path = path
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self.echo = os.environ.get("DBECHO")
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self.mod = False
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def execute(self, sql, *a, **ka) -> Cursor:
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s = sql.strip().lower()
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# mark modified?
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for stmt in "insert", "update", "delete":
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if s.startswith(stmt):
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self.mod = True
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t = time.time()
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if ka:
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# execute("...where id = :id", id=5)
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res = self._db.execute(sql, ka)
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else:
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# execute("...where id = ?", 5)
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res = self._db.execute(sql, a)
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if self.echo:
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#print a, ka
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print(sql, "%0.3fms" % ((time.time() - t)*1000))
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if self.echo == "2":
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print(a, ka)
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return res
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def executemany(self, sql, l) -> None:
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self.mod = True
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t = time.time()
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self._db.executemany(sql, l)
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if self.echo:
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print(sql, "%0.3fms" % ((time.time() - t)*1000))
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if self.echo == "2":
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print(l)
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def commit(self) -> None:
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t = time.time()
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self._db.commit()
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if self.echo:
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print("commit %0.3fms" % ((time.time() - t)*1000))
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def executescript(self, sql) -> None:
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self.mod = True
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if self.echo:
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print(sql)
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self._db.executescript(sql)
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def rollback(self) -> None:
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self._db.rollback()
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def scalar(self, *a, **kw) -> Any:
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res = self.execute(*a, **kw).fetchone()
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if res:
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return res[0]
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return None
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def all(self, *a, **kw) -> List:
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return self.execute(*a, **kw).fetchall()
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def first(self, *a, **kw) -> Any:
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c = self.execute(*a, **kw)
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res = c.fetchone()
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c.close()
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return res
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def list(self, *a, **kw) -> List:
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return [x[0] for x in self.execute(*a, **kw)]
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def close(self) -> None:
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self._db.text_factory = None
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self._db.close()
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def set_progress_handler(self, *args) -> None:
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self._db.set_progress_handler(*args)
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def __enter__(self) -> "DB":
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self._db.execute("begin")
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return self
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def __exit__(self, exc_type, *args) -> None:
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self._db.close()
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def totalChanges(self) -> Any:
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return self._db.total_changes
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def interrupt(self) -> None:
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self._db.interrupt()
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def setAutocommit(self, autocommit) -> None:
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if autocommit:
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self._db.isolation_level = None
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else:
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self._db.isolation_level = ''
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# strip out invalid utf-8 when reading from db
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def _textFactory(self, data) -> str:
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return str(data, errors="ignore")
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def cursor(self, factory=Cursor) -> Cursor:
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return self._db.cursor(factory)
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