66 lines
2 KiB
MySQL
66 lines
2 KiB
MySQL
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-- 004_trips_for_range_rpc.sql
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-- Multi-day variant of trips_for_day. The 14-day cap is enforced here in SQL
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-- so PostgREST can't be tricked into asking for an absurd range via direct RPC.
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CREATE OR REPLACE FUNCTION public.trips_for_range(
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p_start date,
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p_end date,
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p_cost_centres text[] DEFAULT NULL
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) RETURNS TABLE (
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trip_id bigint,
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imei text,
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vehicle_name text,
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vehicle_number text,
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cost_centre text,
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start_time timestamptz,
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end_time timestamptz,
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distance_km numeric,
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path_geojson json,
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timestamps_rel int[]
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)
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LANGUAGE plpgsql STABLE
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SECURITY DEFINER
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SET search_path = public, tracksolid
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AS $$
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BEGIN
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IF p_start IS NULL OR p_end IS NULL OR p_end < p_start THEN
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RAISE EXCEPTION 'Invalid date range: p_start=%, p_end=%', p_start, p_end;
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END IF;
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IF (p_end - p_start) > 13 THEN
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RAISE EXCEPTION 'Range too large: max 14 days, got %', (p_end - p_start + 1);
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END IF;
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RETURN QUERY
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WITH range_trips AS (
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SELECT v.*
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FROM public.trips_viz_v1 v
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WHERE v.start_time::date BETWEEN p_start AND p_end
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AND (p_cost_centres IS NULL OR v.cost_centre = ANY(p_cost_centres))
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)
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SELECT
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rt.trip_id,
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rt.imei,
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rt.vehicle_name,
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rt.vehicle_number,
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rt.cost_centre,
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rt.start_time,
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rt.end_time,
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rt.distance_km,
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ST_AsGeoJSON(ST_MakeLine(ph.geom ORDER BY ph.gps_time))::json AS path_geojson,
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array_agg(
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EXTRACT(EPOCH FROM ph.gps_time - rt.start_time)::int
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ORDER BY ph.gps_time
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) AS timestamps_rel
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FROM range_trips rt
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JOIN tracksolid.position_history ph
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ON ph.imei = rt.imei
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AND ph.gps_time BETWEEN rt.start_time AND rt.end_time
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AND ph.geom IS NOT NULL
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GROUP BY rt.trip_id, rt.imei, rt.vehicle_name, rt.vehicle_number,
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rt.cost_centre, rt.start_time, rt.end_time, rt.distance_km
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HAVING count(ph.geom) >= 2;
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END;
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$$;
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GRANT EXECUTE ON FUNCTION public.trips_for_range(date, date, text[]) TO viz_anon;
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