REM ***************************************************************************
REM   Hand-carved package body for UNIQUENESS RULE created on 14-JAN-99
REM ***************************************************************************
CREATE OR REPLACE PACKAGE BODY cihunr IS

  -- Generic post-process routines
  PROCEDURE check_delete(id number);

  sac_type constant varchar2(6) := 'CRU';
  pac_type constant varchar2(6) := 'CLA';
  pac_reference number;

--======================== PRE-PROCESS (INS,UPD) ============================--

PROCEDURE pre_process(operation varchar2,id number,
  pl in out NOCOPY ciouniqueness_rule.data)
IS
BEGIN
  -- Calculate the PAC reference which determines access control rights
  pac_reference := NVL(NVL(pl.v.entity_object_reference, pl.v.generic_class_reference), pl.v.view_object_reference);

  -- Access rights for uniqueness rule derive from the reference
-- Access rights checking performed by triggers in config 4.0.9
--  ciiacc.check_access_rights(pac_reference,pac_type,'UPD');

  -- Initialize unassigned properties with default values on INSERT
  if operation = 'INS' then
    pl.v.element_type_name := sac_type;
    pl.i.element_type_name := true;
    pl.v.classifier_rule_subtype := 'UNR';
    pl.i.classifier_rule_subtype := true;
  end if;

  if pl.i.entity_object_reference then
    pl.v.classifier_rule_for := 'EOC';
    pl.i.classifier_rule_for := true;
  elsif pl.i.generic_class_reference then
    pl.v.classifier_rule_for := 'GEC';
    pl.i.classifier_rule_for := true;
  elsif pl.i.view_object_reference then
    pl.v.classifier_rule_for := 'VOB';
    pl.i.classifier_rule_for := true;
  elsif pl.i.interface_classifier_reference then
    pl.v.classifier_rule_for := 'INC';
    pl.i.classifier_rule_for := true;
  end if;

END;

--======================== PRE-PROCESS (DEL,SEL) ============================--

PROCEDURE pre_process(operation varchar2,id number)
IS
BEGIN
  -- Access rights for uniqueness rule derive from the reference
-- Access rights checking performed by triggers in config 4.0.9
--  ciiacc.check_access_rights(id,sac_type,operation,'SAC');

  -- if operation is 'DELETE', make sure no non-cascading references exist
  if operation = 'DEL' then
    check_delete(id);
  end if;
END;

--===================== POST-PROCESS (INS,UPD,SEL) ==========================--

PROCEDURE post_process(operation varchar2,id number,
  pl ciouniqueness_rule.data)
IS
  dummy number;
BEGIN
  if operation != 'SEL' then
 
    select count(*) into dummy 
    from ci_uniqueness_rules 
    where designated_primary_key_flag = 'Y'
    and (entity_object_reference = pl.v.entity_object_reference or
        generic_class_reference = pl.v.generic_class_reference or
        interface_classifier_reference = pl.v.interface_classifier_reference or
        view_object_reference = pl.v.view_object_reference);
    
    if dummy > 1 then
      --%0!s: Only one Uniqueness rule can be transformed to the primary key
      ciierr.post(2111,ciiutl.identify(id, 'UNR')); 
      raise cdapi.apierror;
    end if;

 
 end if;
 
END;

--========================= POST PROCESS (DEL) ==============================--

PROCEDURE post_process(operation varchar2,id number)
IS
 

BEGIN
  null;
  
END;

--============================= CHECK DELETE ================================--

PROCEDURE check_delete(id number)
IS
  dummy number;
  error_count number := 0;
BEGIN
  null;
END;

--================================== END ====================================--
--
-- Package instantiation block
--
BEGIN
  is_installed := true;
END;
/