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author | Markus Kottlaender <markus@intevation.de> |
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date | Wed, 13 Feb 2019 07:55:57 +0100 |
parents | b9c59050014a |
children | 0f1a915344c5 |
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-- This is Free Software under GNU Affero General Public License v >= 3.0 -- without warranty, see README.md and license for details. -- SPDX-License-Identifier: AGPL-3.0-or-later -- License-Filename: LICENSES/AGPL-3.0.txt -- Copyright (C) 2018 by via donau -- – Österreichische Wasserstraßen-Gesellschaft mbH -- Software engineering by Intevation GmbH -- Author(s): -- * Sascha Wilde <wilde@intevation.de> CREATE OR REPLACE FUNCTION search_bottlenecks(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT objnam AS name, ST_AsGeoJSON(ST_Centroid(area))::json AS geom, 'bottleneck' AS type FROM waterway.bottlenecks WHERE objnam ILIKE '%' || search_string || '%' ORDER BY name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_cities(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ DECLARE _result jsonb; BEGIN SELECT COALESCE(json_agg(r),'[]') INTO _result FROM (SELECT name || ' (' || country_code || ')' AS name, ST_AsGeoJSON(location)::json AS geom, 'city' AS type FROM waterway.geonames WHERE feature_code IN ('PPLA', 'PPLA1', 'PPLA2', 'PPLA3', 'PPLC') AND (name ILIKE '%' || search_string || '%' OR alternatenames ~* ('(^|,)' || search_string || '($|,)')) ORDER BY array_position(ARRAY['PPLC', 'PPLA', 'PPLA1', 'PPLA2', 'PPLA3'], feature_code::text), name) r; RETURN _result; END; $$; CREATE OR REPLACE FUNCTION search_most(search_string text) RETURNS jsonb LANGUAGE plpgsql AS $$ BEGIN RETURN search_bottlenecks(search_string) || search_cities(search_string); END; $$;