55 lines
1.6 KiB
PL/PgSQL
55 lines
1.6 KiB
PL/PgSQL
CREATE OR REPLACE FUNCTION public.create_booking_atomic(
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p_account_id uuid,
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p_room_id uuid,
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p_guest_id uuid DEFAULT NULL,
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p_check_in date DEFAULT NULL,
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p_check_out date DEFAULT NULL,
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p_adults integer DEFAULT 1,
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p_children integer DEFAULT 0,
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p_status text DEFAULT 'confirmed',
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p_total_price numeric DEFAULT NULL,
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p_notes text DEFAULT NULL
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)
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RETURNS uuid
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LANGUAGE plpgsql
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SECURITY DEFINER
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SET search_path = ''
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AS $fn$
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DECLARE
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v_room record;
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v_computed_price numeric(10,2);
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v_booking_id uuid;
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BEGIN
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SELECT * INTO v_room FROM public.rooms WHERE id = p_room_id FOR UPDATE;
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IF v_room IS NULL THEN
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RAISE EXCEPTION 'Room % not found', p_room_id USING ERRCODE = 'P0002';
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END IF;
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IF p_check_in IS NULL OR p_check_out IS NULL THEN
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RAISE EXCEPTION 'check_in and check_out dates are required' USING ERRCODE = 'P0001';
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END IF;
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IF p_check_out <= p_check_in THEN
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RAISE EXCEPTION 'check_out must be after check_in' USING ERRCODE = 'P0001';
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END IF;
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IF (p_adults + p_children) > v_room.capacity THEN
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RAISE EXCEPTION 'Total guests exceed room capacity' USING ERRCODE = 'P0001';
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END IF;
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IF p_total_price IS NOT NULL THEN
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v_computed_price := p_total_price;
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ELSE
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v_computed_price := v_room.price_per_night * (p_check_out - p_check_in);
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END IF;
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INSERT INTO public.bookings (
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account_id, room_id, guest_id, check_in, check_out,
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adults, children, status, total_price, notes
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) VALUES (
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p_account_id, p_room_id, p_guest_id, p_check_in, p_check_out,
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p_adults, p_children, p_status, v_computed_price, p_notes
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)
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RETURNING id INTO v_booking_id;
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RETURN v_booking_id;
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END;
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$fn$;
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