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author | Evgeny Zinoviev <me@ch1p.io> | 2023-06-10 23:02:34 +0300 |
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committer | Evgeny Zinoviev <me@ch1p.io> | 2023-06-10 23:02:34 +0300 |
commit | b0bf43e6a272d42a55158e657bd937cb82fc3d8d (patch) | |
tree | f1bc13253bc028abcaed9c88882f5aee384a269c /py_include/homekit/database/clickhouse.py | |
parent | f3b9d50496257d87757802dfb472b5ffae11962c (diff) |
move files, rename home package to homekit
Diffstat (limited to 'py_include/homekit/database/clickhouse.py')
-rw-r--r-- | py_include/homekit/database/clickhouse.py | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/py_include/homekit/database/clickhouse.py b/py_include/homekit/database/clickhouse.py new file mode 100644 index 0000000..d0ec283 --- /dev/null +++ b/py_include/homekit/database/clickhouse.py @@ -0,0 +1,39 @@ +import logging + +from zoneinfo import ZoneInfo +from datetime import datetime +from clickhouse_driver import Client as ClickhouseClient +from ..config import is_development_mode + +_links = {} + + +def get_clickhouse(db: str) -> ClickhouseClient: + if db not in _links: + _links[db] = ClickhouseClient.from_url(f'clickhouse://localhost/{db}') + + return _links[db] + + +class ClickhouseDatabase: + def __init__(self, db: str): + self.db = get_clickhouse(db) + + self.server_timezone = self.db.execute('SELECT timezone()')[0][0] + self.logger = logging.getLogger(self.__class__.__name__) + + def query(self, *args, **kwargs): + settings = {'use_client_time_zone': True} + kwargs['settings'] = settings + + if 'no_tz_fix' not in kwargs and len(args) > 1 and isinstance(args[1], dict): + for k, v in args[1].items(): + if isinstance(v, datetime): + args[1][k] = v.astimezone(tz=ZoneInfo(self.server_timezone)) + + result = self.db.execute(*args, **kwargs) + + if is_development_mode(): + self.logger.debug(args[0] if len(args) == 1 else args[0] % args[1]) + + return result |