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Improve functions

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This commit is contained in:
Alex Kotov 2023-02-19 08:55:18 +04:00
parent 9ae355f105
commit f9f0dbe246
Signed by: kotovalexarian
GPG key ID: 553C0EBBEB5D5F08
2 changed files with 50 additions and 0 deletions
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21
20230219044854_improve_functions.down.sql Normal file
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BEGIN;
CREATE OR REPLACE FUNCTION is_sane_text(value TEXT)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
RETURN value IS NOT NULL AND value = btrim(value) AND length(value) > 0;
END$$;
CREATE OR REPLACE FUNCTION is_language_code(value VARCHAR)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
RETURN value IS NOT NULL AND value ~ '^[a-z]{2}$';
END$$;
COMMIT;

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20230219044854_improve_functions.up.sql Normal file
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BEGIN;
CREATE OR REPLACE FUNCTION is_sane_text(value TEXT)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
IF value IS NULL THEN
RETURN TRUE;
ELSE
RETURN value = btrim(value) AND length(value) > 0;
END IF;
END$$;
CREATE OR REPLACE FUNCTION is_language_code(value VARCHAR)
RETURNS BOOLEAN
IMMUTABLE
PARALLEL SAFE
LANGUAGE plpgsql
AS $$BEGIN
IF value IS NULL THEN
RETURN TRUE;
ELSE
RETURN value ~ '^[a-z]{2}$';
END IF;
END$$;
COMMIT;