Triggers for inserting on VIEWS

Hi,

at least with PostgreSQL 7.1 it was possible to create a trigger on a
view. 7.2 seems to fail with:
  psql:t:25: ERROR:  CreateTrigger: relation "egg_view" is not a table

is there any replacement so that inserting somewhere acts on multiple
tables ?

Thank you.

Code reference: (stupid, real code is more complex and uses multiple                tables)

DROP TRIGGER t_egg ON egg_view;
DROP FUNCTION f_egg_insert ();
DROP VIEW egg_view;
DROP TABLE egg;
DROP SEQUENCE egg_id_seq;

CREATE TABLE egg(id SERIAL,                description TEXT,                UNIQUE(id), PRIMARY KEY(id));

CREATE VIEW egg_view  AS SELECT description FROM egg;

CREATE FUNCTION f_egg_insert ()  RETURNS opaque  AS 'BEGIN         INSERT INTO egg (description)
VALUES(NEW.description);     END;'  LANGUAGE 'plpgsql';
 

CREATE TRIGGER t_egg  BEFORE INSERT  ON egg_view  FOR EACH ROW  EXECUTE PROCEDURE f_egg_insert();