Add rollback on exception that needs rollback in SQL (home-assistant#…

…104948)

homeassistant/components/sql/sensor.py

@@ -362,6 +362,8 @@ def _update(self) -> Any:
                 self._query,
                 redact_credentials(str(err)),
             )
+            sess.rollback()
+            sess.close()
             return
 
         for res in result.mappings():

tests/components/sql/test_sensor.py

@@ -5,13 +5,15 @@
 from typing import Any
 from unittest.mock import patch
 
+from freezegun.api import FrozenDateTimeFactory
 import pytest
 from sqlalchemy import text as sql_text
 from sqlalchemy.exc import SQLAlchemyError
 
 from homeassistant.components.recorder import Recorder
 from homeassistant.components.sensor import SensorDeviceClass, SensorStateClass
 from homeassistant.components.sql.const import CONF_QUERY, DOMAIN
+from homeassistant.components.sql.sensor import _generate_lambda_stmt
 from homeassistant.config_entries import SOURCE_USER
 from homeassistant.const import (
     CONF_ICON,
@@ -21,6 +23,7 @@
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers import issue_registry as ir
+from homeassistant.helpers.entity_platform import async_get_platforms
 from homeassistant.setup import async_setup_component
 from homeassistant.util import dt as dt_util
 
@@ -570,3 +573,48 @@ async def test_attributes_from_entry_config(
     assert state.attributes["unit_of_measurement"] == "MiB"
     assert "device_class" not in state.attributes
     assert "state_class" not in state.attributes
+
+
+async def test_query_recover_from_rollback(
+    recorder_mock: Recorder,
+    hass: HomeAssistant,
+    freezer: FrozenDateTimeFactory,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test the SQL sensor."""
+    config = {
+        "db_url": "sqlite://",
+        "query": "SELECT 5 as value",
+        "column": "value",
+        "name": "Select value SQL query",
+        "unique_id": "very_unique_id",
+    }
+    await init_integration(hass, config)
+    platforms = async_get_platforms(hass, "sql")
+    sql_entity = platforms[0].entities["sensor.select_value_sql_query"]
+
+    state = hass.states.get("sensor.select_value_sql_query")
+    assert state.state == "5"
+    assert state.attributes["value"] == 5
+
+    with patch.object(
+        sql_entity,
+        "_lambda_stmt",
+        _generate_lambda_stmt("Faulty syntax create operational issue"),
+    ):
+        freezer.tick(timedelta(minutes=1))
+        async_fire_time_changed(hass)
+        await hass.async_block_till_done()
+        assert "sqlite3.OperationalError" in caplog.text
+
+    state = hass.states.get("sensor.select_value_sql_query")
+    assert state.state == "5"
+    assert state.attributes.get("value") is None
+
+    freezer.tick(timedelta(minutes=1))
+    async_fire_time_changed(hass)
+    await hass.async_block_till_done()
+
+    state = hass.states.get("sensor.select_value_sql_query")
+    assert state.state == "5"
+    assert state.attributes.get("value") == 5