Acceptance Testing/Edit business partner properties script PostgreSQL

CREATE OR REPLACE FUNCTION create_edit_bpartners()
  RETURNS void AS
$BODY$ DECLARE

v_Paymentterm_id numeric(10);
v_Pricelist_id numeric(10);
v_client_id    numeric(10);
v_invoiceschedule_id numeric(10);

BEGIN

SELECT MAX(AD_CLIENT_ID) INTO v_client_id FROM AD_CLIENT;

SELECT C_PAYMENTTERM_ID INTO v_Paymentterm_id FROM C_PAYMENTTERM WHERE   VALUE='30d/5' AND AD_CLIENT_ID=v_client_id;

SELECT MAX(C_INVOICESCHEDULE_ID) INTO v_invoiceschedule_id FROM  C_INVOICESCHEDULE WHERE AD_CLIENT_ID=v_client_id;

UPDATE C_BPARTNER SET C_PAYMENTTERM_ID=v_Paymentterm_id, ISVENDOR='N',   ISCUSTOMER='Y', PAYMENTRULE='4', INVOICERULE='D' WHERE C_BP_GROUP_ID IN  (SELECT  C_BP_GROUP_ID FROM C_BP_GROUP WHERE VALUE='CUS' AND AD_CLIENT_ID=v_client_id);

UPDATE C_BPARTNER SET C_INVOICESCHEDULE_ID = v_invoiceschedule_id,  INVOICERULE='S' WHERE UPPER(VALUE)='CUSA';

SELECT C_PAYMENTTERM_ID INTO v_Paymentterm_id FROM C_PAYMENTTERM WHERE VALUE='90d' AND AD_CLIENT_ID=v_client_id; 

SELECT M_PRICELIST_ID INTO v_Pricelist_id FROM M_PRICELIST WHERE  NAME='PURCHASE' AND AD_CLIENT_ID=v_client_id;                   
UPDATE C_BPARTNER SET PO_PAYMENTTERM_ID=v_Paymentterm_id, ISVENDOR='Y',  ISCUSTOMER='N', PAYMENTRULEPO='1', PO_PRICELIST_ID=v_Pricelist_id WHERE  C_BP_GROUP_ID IN (SELECT C_BP_GROUP_ID FROM C_BP_GROUP WHERE VALUE IN  ('VEN','CRT') AND AD_CLIENT_ID=v_client_id);

UPDATE C_BPARTNER SET ISVENDOR='N', ISCUSTOMER='N', ISEMPLOYEE='Y' WHERE  C_BP_GROUP_ID IN (SELECT C_BP_GROUP_ID FROM C_BP_GROUP WHERE VALUE IN ('EM')  AND AD_CLIENT_ID=v_client_id);

UPDATE C_BPARTNER SET ISVENDOR='N', ISCUSTOMER='N', ISsalesrep='Y' WHERE  C_BP_GROUP_ID IN (SELECT C_BP_GROUP_ID FROM C_BP_GROUP WHERE VALUE IN ('SM')  AND AD_CLIENT_ID=v_client_id);

SELECT M_PRICELIST_ID INTO v_Pricelist_id FROM M_PRICELIST WHERE NAME='CUSTOMER A' AND AD_CLIENT_ID=v_client_id;

UPDATE C_BPARTNER SET M_PRICELIST_ID=v_Pricelist_id WHERE VALUE='CUSA' AND AD_CLIENT_ID=v_client_id;

SELECT M_PRICELIST_ID INTO v_Pricelist_id FROM M_PRICELIST WHERE NAME='CUSTOMER B' AND AD_CLIENT_ID=v_client_id;

UPDATE C_BPARTNER SET M_PRICELIST_ID=v_Pricelist_id WHERE VALUE='CUSB' AND AD_CLIENT_ID=v_client_id;
     
END ; $BODY$
LANGUAGE 'plpgsql' VOLATILE;

SELECT create_edit_bpartners();

drop function create_edit_bpartners();