40 lines
1.2 KiB
MySQL
40 lines
1.2 KiB
MySQL
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-- This is a set of functions not intended to be used in production
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-- but useful to explore the database without rails ORM.
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-- They are thought to be loosely coupled to the models and just rely on FK relations.
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--
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-- To install:
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-- \i metadata-goodies.psql
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-- To uninstall:
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-- DROP SCHEMA goodies CASCADE;
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CREATE SCHEMA IF NOT EXISTS goodies AUTHORIZATION postgres;
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CREATE OR REPLACE FUNCTION goodies.related_layer_ids(table_id uuid)
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RETURNS SETOF uuid AS $$
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BEGIN
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RETURN QUERY SELECT DISTINCT(layer_id) FROM layers_user_tables WHERE layers_user_tables.user_table_id = table_id;
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION goodies.related_map_ids(table_id uuid)
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RETURNS SETOF uuid AS $$
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BEGIN
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RETURN QUERY SELECT DISTINCT(map_id) FROM layers_maps WHERE layers_maps.layer_id
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IN (SELECT goodies.related_layer_ids(table_id));
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END;
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$$ LANGUAGE plpgsql;
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-- E.g: SELECT id, name, type FROM goodies.related_vizs('6eb62d84-c4bc-446b-89dd-5435f6cc9346');
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CREATE OR REPLACE FUNCTION goodies.related_vizs(table_id uuid)
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RETURNS SETOF visualizations AS $$
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BEGIN
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RETURN QUERY SELECT * FROM visualizations WHERE visualizations.map_id
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IN (SELECT goodies.related_map_ids(table_id));
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END;
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$$ LANGUAGE plpgsql;
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