8bd43760b6
* Deduplicate event_types in the events table
* Deduplicate event_types in the events table
* more fixes
* adjust
* adjust
* fix product
* fix tests
* adjust
* migrate
* migrate
* migrate
* more test fixes
* more test fixes
* fix
* migration test
* adjust
* speed up
* fix index
* fix more tests
* handle db failure
* preload
* tweak
* adjust
* fix stale docs strings, remove dead code
* refactor
* fix slow tests
* coverage
* self join to resolve query performance
* fix typo
* no need for quiet
* no need to drop index already dropped
* remove index that will never be used
* drop index sooner as we no longer use it
* Revert "remove index that will never be used"
This reverts commit 461aad2c52.
* typo
102 lines
3.2 KiB
Python
102 lines
3.2 KiB
Python
"""Devices queries for logbook."""
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from __future__ import annotations
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from collections.abc import Iterable
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import sqlalchemy
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from sqlalchemy import lambda_stmt, select
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from sqlalchemy.sql.elements import BooleanClauseList
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from sqlalchemy.sql.lambdas import StatementLambdaElement
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from sqlalchemy.sql.selectable import CTE, CompoundSelect, Select
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from homeassistant.components.recorder.db_schema import (
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DEVICE_ID_IN_EVENT,
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EventData,
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Events,
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EventTypes,
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States,
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)
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from .common import (
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apply_events_context_hints,
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apply_states_context_hints,
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select_events_context_id_subquery,
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select_events_context_only,
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select_events_without_states,
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select_states_context_only,
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)
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def _select_device_id_context_ids_sub_query(
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start_day: float,
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end_day: float,
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event_types: tuple[str, ...],
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json_quotable_device_ids: list[str],
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) -> Select:
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"""Generate a subquery to find context ids for multiple devices."""
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inner = (
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select_events_context_id_subquery(start_day, end_day, event_types)
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.where(apply_event_device_id_matchers(json_quotable_device_ids))
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.subquery()
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)
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return select(inner.c.context_id_bin).group_by(inner.c.context_id_bin)
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def _apply_devices_context_union(
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sel: Select,
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start_day: float,
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end_day: float,
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event_types: tuple[str, ...],
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json_quotable_device_ids: list[str],
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) -> CompoundSelect:
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"""Generate a CTE to find the device context ids and a query to find linked row."""
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devices_cte: CTE = _select_device_id_context_ids_sub_query(
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start_day,
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end_day,
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event_types,
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json_quotable_device_ids,
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).cte()
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return sel.union_all(
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apply_events_context_hints(
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select_events_context_only()
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.select_from(devices_cte)
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.outerjoin(Events, devices_cte.c.context_id_bin == Events.context_id_bin)
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.outerjoin(EventTypes, (Events.event_type_id == EventTypes.event_type_id))
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.outerjoin(EventData, (Events.data_id == EventData.data_id)),
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),
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apply_states_context_hints(
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select_states_context_only()
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.select_from(devices_cte)
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.outerjoin(States, devices_cte.c.context_id_bin == States.context_id_bin)
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),
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)
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def devices_stmt(
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start_day: float,
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end_day: float,
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event_types: tuple[str, ...],
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json_quotable_device_ids: list[str],
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) -> StatementLambdaElement:
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"""Generate a logbook query for multiple devices."""
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stmt = lambda_stmt(
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lambda: _apply_devices_context_union(
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select_events_without_states(start_day, end_day, event_types).where(
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apply_event_device_id_matchers(json_quotable_device_ids)
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),
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start_day,
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end_day,
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event_types,
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json_quotable_device_ids,
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).order_by(Events.time_fired_ts)
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)
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return stmt
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def apply_event_device_id_matchers(
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json_quotable_device_ids: Iterable[str],
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) -> BooleanClauseList:
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"""Create matchers for the device_ids in the event_data."""
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return DEVICE_ID_IN_EVENT.is_not(None) & sqlalchemy.cast(
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DEVICE_ID_IN_EVENT, sqlalchemy.Text()
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).in_(json_quotable_device_ids)
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