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authorEvgeny Zinoviev <me@ch1p.io>2023-06-10 23:02:34 +0300
committerEvgeny Zinoviev <me@ch1p.io>2023-06-10 23:02:34 +0300
commitb0bf43e6a272d42a55158e657bd937cb82fc3d8d (patch)
treef1bc13253bc028abcaed9c88882f5aee384a269c /py_include/homekit/database/clickhouse.py
parentf3b9d50496257d87757802dfb472b5ffae11962c (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.py39
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