Boolean to int

Hi,

I'd like to get 1 or 0 from a select on a boolean field.

How could I do ?

I tried the following rule, which I can't insert :

CREATE FUNCTION bool_to_int( boolean ) RETURNS integer AS '
DECLARE
my_bool ALIAS FOR $1 ;
BEGIN
-- Retourne 1 si true, 0 si false
IF my_bool IS FALSE THEN
RETURN 0 ;
ELSIF my_bool IS TRUE THEN
RETURN 1 ;
ELSE RETURN -1 ;
END IF ;
END ;
' LANGUAGE 'plpgsql';

CREATE RULE boolean_return AS ON SELECT TO DOCUMENT DO INSTEAD
SELECT
document_id,
workflow_id,
type_document_id,
image_id,
theme_id,
document_version,
document_surtitre,
document_titre,
document_chapeau,
document_synthese,
document_corps,
document_pdf,
document_date_creation,
document_mot_clef,
(bool_to_int(document_online)) as document_online,
bool_to_int(document_valid) as document_valid FROM document;

psql:cnambo_proc_stock.sql:69: ERROR: select rule's target entry 15
has different type from attribute document_online

Who could help me ?

S(at)S

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