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problem with function trigger

From: jclaudio(at)capitol(dot)fr
To: pgsql-novice(at)postgresql(dot)org
Subject: problem with function trigger
Date: 2004-01-13 13:23:52
Message-ID: OF3784DE4D.49774A40-ONC1256E1A.00499460-C1256E1A.004998F4@capitol.fr (view raw or flat)
Thread:
Lists: pgsql-novice
Hi I'm trying to update a table column with a pl/pgsql function and a 
trigger. 
But I didn't managed to make it work so far.

Here's my  function code :

CREATE FUNCTION public.calcul_impact() RETURNS opaque AS '

DECLARE 
id_line integer;
quantity integer;
single_price real; 
total_cost real; 
amort integer;
month integer;
impact real;

BEGIN 

SELECT INTO id_line id_line_table FROM table WHERE id_line_table = 
NEW.id_line;
SELECT INTO single_price single_price_previ FROM table WHERE id_line_table 
= NEW.id_line;
SELECT INTO total_cost total_cost_previ FROM table WHERE id_line_table = 
NEW.id_line;
SELECT INTO quantity quantity_previ FROM table WHERE id_line_table = 
NEW.id_line;
SELECT INTO amort amortis FROM table WHERE id_line_table = NEW.id_line;
SELECT INTO month month_previ FROM table WHERE id_line_table = 
NEW.id_line;
SELECT INTO impact impact_previ FROM table WHERE id_line_table = 
NEW.id_line;

IF(quantity IS NULL OR single_price IS NULL) THEN impact:= 0; 
ELSE IF(quantity >= 12) THEN impact:= (total_cost / amort); 
     ELSE IF(quantity < 12 AND single_price <= 500) THEN impact:= 
total_cost; 
          ELSE IF(quantity < 12 AND single_price > 500) THEN impact:= ((12 
- month)*(total_cost/(amort*12))); 
               END IF;
          END IF;
     END IF;
END IF;

IF (TG_OP =''INSERT'' OR TG_OP=''UPDATE'') THEN 
        UPDATE table SET impact_previ = impact WHERE id_line_table = 
NEW.id_line; 
END IF; 

RETURN NEW; 

END;

' LANGUAGE 'plpgsql';

CREATE TRIGGER add_impact_previ BEFORE INSERT OR UPDATE ON public.budget 
FOR EACH ROW EXECUTE PROCEDURE calcul_impact();

I always get the error :

Error SQL :
ERROR:  record "new" has no field named "id_ligne"

Has anyone an idea about what's wrong ?

thanks for answering me

pgsql-novice by date

Next:From: Eric S. JohanssonDate: 2004-01-13 13:26:47
Subject: Re: PostgreSQL booting automaticaly
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