Use of the Apex API in pl/sql procedures.

Question

Hi,
I have a page with a form region with fields working as filter for an interactive report. This report is conditionally showed when the user clicks on the filter button. It was working with the field :REQUEST, but in this way IR functions like download, filter, format... doesn't work, I've seen that it's a bug. A workaround is using a field instead :REQUEST to conditionally show the IR region. I want to create and manage this field with a proccess, here is the code.
DECLARE
  L_INPUT BOOLEAN;
  L_VAL   VARCHAR2(32);
  L_NAME  VARCHAR2(32);
BEGIN
  IF :REQUEST = 'FILTER' THEN
    L_VAL := 'FILTER';
  ELSE
    L_VAL := '';
  END IF;
  L_NAME  := :APP_PAGE_ID || '_PROCESS';
  L_INPUT := APEX_CUSTOM_AUTH.APPLICATION_PAGE_ITEM_EXISTS(L_NAME);
  IF L_VAL = 'FILTER' THEN
    IF L_INPUT THEN
      APEX_UTIL.SET_SESSION_STATE(L_NAME, L_VAL);
    ELSE
      APEX_ITEM.HIDDEN(1, L_VAL, 'readonly', L_NAME);
    END IF;   
  ELSE
    IF L_INPUT THEN
      APEX_UTIL.SET_SESSION_STATE(L_NAME, L_VAL);
    ELSE
      APEX_ITEM.HIDDEN(1, L_VAL, 'readonly', L_NAME);
    END IF;
  END IF;
END;But this code produces the following error:
ORA-06550: line 20, column 7: PLS-00221: 'HIDDEN' is not a procedure or is undefined ORA-06550: line 20, column 7: PL/SQL: Statement ignored ORA-06550: line 26, column 7: PLS-00221: 'HIDDEN' is not a procedure or is undefined ORA-06550: line 26, column 7: PL/SQL: Statement ignored
I'm using Apex 4.1.2. What it's wrong? I can't use APEX_ITEM package in this way?
Regards,

Answer 1

RideTheStorm wrote:
Hi,
I have a page with a form region with fields working as filter for an interactive report. This report is conditionally showed when the user clicks on the filter button. It was working with the field :REQUEST, but in this way IR functions like download, filter, format... doesn't work, I've seen that it's a bug. A workaround is using a field instead :REQUEST to conditionally show the IR region. I want to create and manage this field with a proccess, here is the code.What field?? if you want to set a page item as conditional then edit the item and set a condition.
DECLARE
L_INPUT BOOLEAN;
L_VAL   VARCHAR2(32);
L_NAME  VARCHAR2(32);
BEGIN
IF :REQUEST = 'FILTER' THEN
L_VAL := 'FILTER';
ELSE
L_VAL := '';
END IF;
L_NAME  := :APP_PAGE_ID || '_PROCESS';
L_INPUT := APEX_CUSTOM_AUTH.APPLICATION_PAGE_ITEM_EXISTS(L_NAME);
IF L_VAL = 'FILTER' THEN
IF L_INPUT THEN
APEX_UTIL.SET_SESSION_STATE(L_NAME, L_VAL);
ELSE
APEX_ITEM.HIDDEN(1, L_VAL, 'readonly', L_NAME);
END IF;   
ELSE
IF L_INPUT THEN
APEX_UTIL.SET_SESSION_STATE(L_NAME, L_VAL);
ELSE
APEX_ITEM.HIDDEN(1, L_VAL, 'readonly', L_NAME);
END IF;
END IF;
END;But this code produces the following error:
ORA-06550: line 20, column 7: PLS-00221: 'HIDDEN' is not a procedure or is undefined ORA-06550: line 20, column 7: PL/SQL: Statement ignored ORA-06550: line 26, column 7: PLS-00221: 'HIDDEN' is not a procedure or is undefined ORA-06550: line 26, column 7: PL/SQL: Statement ignored
I'm using Apex 4.1.2. What it's wrong? I can't use APEX_ITEM package in this way?
Regards,
What are you trying to do?? I guess you have to use APEX_IR http://docs.oracle.com/cd/E37097_01/doc/doc.42/e35127/apex_ir.htm
APEX_ITEM.HIDDEN is not a procedure and is a function that returns HTML for hidden item.