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Correct recorder.statistics.get_last_statistics (#61421)

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Erik Montnemery 2021-12-10 19:09:29 +01:00 committed by GitHub
parent aa36dde148
commit dc5888ab4a
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3 changed files with 62 additions and 18 deletions
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43
homeassistant/components/recorder/statistics.py
View File

@ -834,8 +834,12 @@ def statistics_during_period(
return _reduce_statistics_per_month(result)
def get_last_statistics(
hass: HomeAssistant, number_of_stats: int, statistic_id: str, convert_units: bool
def _get_last_statistics(
hass: HomeAssistant,
number_of_stats: int,
statistic_id: str,
convert_units: bool,
table: type[Statistics | StatisticsShortTerm],
) -> dict[str, list[dict]]:
"""Return the last number_of_stats statistics for a given statistic_id."""
statistic_ids = [statistic_id]
@ -845,16 +849,19 @@ def get_last_statistics(
if not metadata:
return {}
baked_query = hass.data[STATISTICS_SHORT_TERM_BAKERY](
lambda session: session.query(*QUERY_STATISTICS_SHORT_TERM)
)
if table == StatisticsShortTerm:
bakery = STATISTICS_SHORT_TERM_BAKERY
base_query = QUERY_STATISTICS_SHORT_TERM
else:
bakery = STATISTICS_BAKERY
base_query = QUERY_STATISTICS
baked_query = hass.data[bakery](lambda session: session.query(*base_query))
baked_query += lambda q: q.filter_by(metadata_id=bindparam("metadata_id"))
metadata_id = metadata[statistic_id][0]
baked_query += lambda q: q.order_by(
StatisticsShortTerm.metadata_id, StatisticsShortTerm.start.desc()
)
baked_query += lambda q: q.order_by(table.metadata_id, table.start.desc())
baked_query += lambda q: q.limit(bindparam("number_of_stats"))
@ -874,11 +881,29 @@ def get_last_statistics(
statistic_ids,
metadata,
convert_units,
StatisticsShortTerm,
table,
None,
)
def get_last_statistics(
hass: HomeAssistant, number_of_stats: int, statistic_id: str, convert_units: bool
) -> dict[str, list[dict]]:
"""Return the last number_of_stats statistics for a statistic_id."""
return _get_last_statistics(
hass, number_of_stats, statistic_id, convert_units, Statistics
)
def get_last_short_term_statistics(
hass: HomeAssistant, number_of_stats: int, statistic_id: str, convert_units: bool
) -> dict[str, list[dict]]:
"""Return the last number_of_stats short term statistics for a statistic_id."""
return _get_last_statistics(
hass, number_of_stats, statistic_id, convert_units, StatisticsShortTerm
)
def _statistics_at_time(
session: scoped_session,
metadata_ids: set[int],

4
homeassistant/components/sensor/recorder.py
View File

@ -517,7 +517,9 @@ def _compile_statistics( # noqa: C901
last_reset = old_last_reset = None
new_state = old_state = None
_sum = 0.0
last_stats = statistics.get_last_statistics(hass, 1, entity_id, False)
last_stats = statistics.get_last_short_term_statistics(
hass, 1, entity_id, False
)
if entity_id in last_stats:
# We have compiled history for this sensor before, use that as a starting point
last_reset = old_last_reset = last_stats[entity_id][0]["last_reset"]

33
tests/components/recorder/test_statistics.py
View File

@ -14,6 +14,7 @@ from homeassistant.components.recorder.models import (
)
from homeassistant.components.recorder.statistics import (
async_add_external_statistics,
get_last_short_term_statistics,
get_last_statistics,
get_metadata,
list_statistic_ids,
@ -40,7 +41,7 @@ def test_compile_hourly_statistics(hass_recorder):
for kwargs in ({}, {"statistic_ids": ["sensor.test1"]}):
stats = statistics_during_period(hass, zero, period="5minute", **kwargs)
assert stats == {}
stats = get_last_statistics(hass, 0, "sensor.test1", True)
stats = get_last_short_term_statistics(hass, 0, "sensor.test1", True)
assert stats == {}
recorder.do_adhoc_statistics(start=zero)
@ -91,20 +92,20 @@ def test_compile_hourly_statistics(hass_recorder):
)
assert stats == {}
# Test get_last_statistics
stats = get_last_statistics(hass, 0, "sensor.test1", True)
# Test get_last_short_term_statistics
stats = get_last_short_term_statistics(hass, 0, "sensor.test1", True)
assert stats == {}
stats = get_last_statistics(hass, 1, "sensor.test1", True)
stats = get_last_short_term_statistics(hass, 1, "sensor.test1", True)
assert stats == {"sensor.test1": [{**expected_2, "statistic_id": "sensor.test1"}]}
stats = get_last_statistics(hass, 2, "sensor.test1", True)
stats = get_last_short_term_statistics(hass, 2, "sensor.test1", True)
assert stats == {"sensor.test1": expected_stats1[::-1]}
stats = get_last_statistics(hass, 3, "sensor.test1", True)
stats = get_last_short_term_statistics(hass, 3, "sensor.test1", True)
assert stats == {"sensor.test1": expected_stats1[::-1]}
stats = get_last_statistics(hass, 1, "sensor.test3", True)
stats = get_last_short_term_statistics(hass, 1, "sensor.test3", True)
assert stats == {}
@ -236,7 +237,7 @@ def test_rename_entity(hass_recorder):
for kwargs in ({}, {"statistic_ids": ["sensor.test1"]}):
stats = statistics_during_period(hass, zero, period="5minute", **kwargs)
assert stats == {}
stats = get_last_statistics(hass, 0, "sensor.test1", True)
stats = get_last_short_term_statistics(hass, 0, "sensor.test1", True)
assert stats == {}
recorder.do_adhoc_statistics(start=zero)
@ -392,6 +393,22 @@ def test_external_statistics(hass_recorder, caplog):
},
)
}
last_stats = get_last_statistics(hass, 1, "test:total_energy_import", True)
assert last_stats == {
"test:total_energy_import": [
{
"statistic_id": "test:total_energy_import",
"start": period2.isoformat(),
"end": (period2 + timedelta(hours=1)).isoformat(),
"max": None,
"mean": None,
"min": None,
"last_reset": None,
"state": approx(1.0),
"sum": approx(3.0),
},
]
}
# Update the previously inserted statistics
external_statistics = {