Auto Query in Before Display Page Section

Question

The following code is querying master and detail blocks automatically in before display page section. It was working fine. But now I don't know why it doesn't work any more. Does any one know what's the problem?
declare
l_fs varchar2(4000);
l_s varchar2(4000);
L_user varchar2(4000);
begin
l_fs := p_session.get_value_as_varchar2(p_block_name => 'MASTER_BLOCK',
p_attribute_name => '_FORM_STATE');
l_s := p_session.get_value_as_varchar2(p_block_name => 'MASTER_BLOCK',
p_attribute_name => '_STATUS');
L_user := portal30.wwctx_api.get_user;
if l_fs = 'QUERY_AND_SAVE' and l_s is null then
p_session.set_shadow_value(p_block_name => 'MASTER_BLOCK',
p_attribute_name => 'A_E_MAIL_ID',
p_value => L_user,
p_language => portal30.wwctx_api.get_nls_language
WWV_MASTER_GENSYS_1(p_block_name => p_block_name,
p_object_name => p_object_name,
p_instance => p_instance,
p_event_type => p_event_type,
p_user_args => p_user_args,
p_session => p_session);
p_session.save_session;
htp.p('<script>window.location.reload();</script>');
end if;
end;

Answer 1

Hi,
To query records before displaying and to refresh the page, you can call the same form (by using the code given below)with necessary parameters from ..before displaying page..section of your form.
declare
l_fs varchar2(4000);
l_s varchar2(4000);
L_user varchar2(4000);
begin
l_fs := p_session.get_value_as_varchar2(p_block_name => 'MASTER_BLOCK',
p_attribute_name => '_FORM_STATE');
l_s := p_session.get_value_as_varchar2(p_block_name => 'MASTER_BLOCK',
p_attribute_name => '_STATUS');
L_user := 'PPP';
if l_fs = 'QUERY_AND_SAVE' and l_s is null then
htp.p('<SCRIPT LANGUAGE="JavaScript">
window.location.href = "PORTAL30.wwa_app_module.link?p_arg_names=_moduleid&p_arg_values=<MODULE ID>&p_arg_names=_show_header&p_arg_values=YES&p_arg_names=E_MAIL_ID&p_arg_values='||l_user||'&p_arg_names=_E_MAIL_ID_COND&p_arg_values=%3D";
</script>');
end if;
end;
Replace <MODULE ID< with the module id of your master detail form.
Hope this helps!..
-Krishnamurthy