Issue with dynamic sql - postgresql

Question

Hi every one I have multiple spatial tables That I want to control, so that I created a table where I will store the name of the operation applied on my layers tables(insert,update or delete), operation time and the team who did it, number of spatial tables created.
My script table
CREATE TABLE public.monitoring_table
(
operation character(1) COLLATE pg_catalog."default",
operat_ime timestamp without time zone,
userid text COLLATE pg_catalog."default",
dc_team text COLLATE pg_catalog."default",
number_pts_created integer,
id integer NOT NULL DEFAULT nextval('monitoring_table_id_seq'::regclass),
CONSTRAINT monitoring_table_pkey PRIMARY KEY (id)
)
WITH (
OIDS = FALSE
)
TABLESPACE pg_default;
ALTER TABLE public.monitoring_table
OWNER to postgres;
after that I stored all the teams that I have on my table :
insert into monitoring_table (dc_team) values ('abdoulhassan');
insert into monitoring_table (dc_team) values ('abdoulei');
insert into monitoring_table (dc_team) values ('danis');
insert into monitoring_table (dc_team) values ('david');
insert into monitoring_table (dc_team) values ('joseph');
To calculate the number of spatial tables created, I executed this function :
My counting function :
DROP FUNCTION get_dc_team_counting();
CREATE OR REPLACE FUNCTION get_dc_team_counting()
RETURNS bigint AS
$func$
DECLARE
dc_team text;
_tbl_pattern text;
_schema text = 'sige';
_tb_name information_schema.tables.table_name%TYPE;
_tc bigint;
BEGIN
FOR _tb_name IN
SELECT table_name
FROM information_schema.tables
WHERE table_schema = _schema
AND table_name ~ _tbl_pattern
LOOP
EXECUTE format('SELECT count(*) FROM %I.%I where id= 583', _schema, _tb_name)
INTO _tc;
return _tc;
END LOOP;
END
$func$ LANGUAGE plpgsql
To get the team I executed this function :
CREATE OR REPLACE FUNCTION get_team()
RETURNS text AS -- or whatever you want to return
$func$
DECLARE
dc_team text;
_tbl_pattern text;
_schema text = 'public';
_tb_name information_schema.tables.table_name%TYPE; -- currently varchar
_tc text;
BEGIN
FOR _tb_name IN
SELECT table_name
FROM information_schema.tables
WHERE table_schema = _schema
AND table_name ~ _tbl_pattern -- see below!
LOOP
EXECUTE format('SELECT dc_team FROM %I.%I where id = 26', _schema, _tb_name)
INTO _tc;
return _tc;
END LOOP;
END
$func$ LANGUAGE plpgsql;
In my where clause I want to get dynamically the value of the ID. I don't want to give it manually in the function. I don't see how to do it.
Now I created a trigger function to be able to update my table if a row was inserted, updated or deleted. I did it this way :
CREATE OR REPLACE FUNCTION process_monitoring() RETURNS TRIGGER AS $monitoring$
BEGIN
IF (TG_OP = 'DELETE') THEN
update monitoring_table set operation = 'D', operat_ime = now(), userid = user ,dc_team = OLD.dc_team, number_pts_created = get_dc_team_counting() where dc_team = get_team();
RETURN OLD;
ELSIF (TG_OP = 'UPDATE') THEN
update monitoring_table set operation = 'U',operat_ime = now(),userid = user , dc_team = NEW.dc_team, number_pts_created = get_dc_team_counting() where dc_team = get_team();
RETURN NEW;
ELSIF (TG_OP = 'INSERT') THEN
update monitoring_table set operation = 'I', operat_ime = now(), userid = user, dc_team = NEW.dc_team, number_pts_created = get_dc_team_counting() where dc_team = get_team();
RETURN NEW;
END IF;
RETURN NULL;
END;
$monitoring$ LANGUAGE plpgsql;
CREATE TRIGGER monitoring
AFTER INSERT OR UPDATE OR DELETE ON sige.valve
FOR EACH ROW EXECUTE PROCEDURE process_monitoring();
In my previous functions I used known values of ids in the where clauses, but when I try to insert or update a value on the concerned table I get this error :
the control attempted it's end without return
CONTEXT: fonction PL/pgsql get_team()
instruction SQL « update monitoring_table set operation = 'U',operat_ime = now(),userid = user , dc_team = NEW.dc_team, number_pts_created = get_dc_team_counting() where dc_team = get_team() »
fonction PL/pgsql process_monitoring(), ligne 10 à instruction SQL
If you have any idea about the origin of the error and how to get dynamically a value of a field and put it in the where clause tell me please.
I'm a newbie and I'm struggling, any assistance would be warmly appreciated.
I'm using PostgreSQL.