Added scene alert view.

migrations/20260713052703_scene_alerts.js

@@ -0,0 +1,29 @@
+exports.up = async function(knex) {
+	await knex.schema.createMaterializedView('alerts_users_scenes', (view) => {
+		view.columns('user_id', 'scene_id', 'alert_ids');
+
+		view.as(
+			knex('alerts_scenes')
+				.select(
+					'alerts.user_id',
+					'alerts_scenes.scene_id',
+					knex.raw('array_agg(distinct alerts.id) as alert_ids'),
+					knex.raw('(alerts_tags.id is null and alerts_entities.id is null and alerts_matches.id is null and related_scenes.id is null) as is_only'),
+				)
+				.leftJoin('alerts', 'alerts.id', 'alerts_scenes.alert_id')
+				.leftJoin('alerts_entities', 'alerts_entities.alert_id', 'alerts_scenes.alert_id')
+				.leftJoin('alerts_tags', 'alerts_tags.alert_id', 'alerts_scenes.alert_id')
+				.leftJoin('alerts_matches', 'alerts_matches.alert_id', 'alerts_scenes.alert_id')
+				.leftJoin('alerts_scenes as related_scenes', (joinBuilder) => {
+					joinBuilder
+						.on('related_scenes.alert_id', 'alerts_scenes.alert_id')
+						.on('related_scenes.scene_id', '!=', 'alerts_scenes.scene_id');
+				})
+				.groupBy(['user_id', 'alerts_scenes.scene_id', 'is_only']),
+		);
+	});
+};
+
+exports.down = async function(knex) {
+	await knex.schema.dropView('alerts_users_scenes');
+};