Use apex_application.g_unrecoverable_error := TRUE; and apex_collection.truncate_collection doesn't work

Question

I'm trying to print pdf using JasperReports Integration. I need to do an INSERT then clean all the page items(including the apex_collection.truncate_collection for truncate the collection)  and print with the Jasper call(all in one button).
The Insert works, and i can perfectlly print too, but the clean page items and the truncate collection doesn't.
Please HELP! its really urgent!!
Thnx.
Ricardo Capuz

Answer 1

Hi Nicolette, i'm really new on Apex, sorry for the bad explanation.
First, thank for your answer, my apex version is 4.2.2.
I'm sure that the insert works perfect, cause i checked with the database.
i used apex_application.g_unrecoverable_error := true; because is the code that bring the people of JasperReportsIntegration and I tried to comment it but without it, the print doesn't work.
My problem is when I use the g_unrecoverable_error the printPDF works perfect but apex does not truncate the collection or clean the fields neither.
I have an invoicing application, i want to click on "generate invoice" and do the insert, print pdf and refresh the page, so that when the user finish to print the invoice, the invoicing application is clean for make another invoice.
Here's the code of the print pdf....
DECLARE
           l_blob        BLOB;
           l_mime_type   VARCHAR2 (100 char);
           l_proc varchar2(100) := 'get report as blob, then show';
           l_additional_parameters varchar2(32767);
BEGIN
      l_additional_parameters := 'USUARIO_CODIGO=' || apex_util.url_encode(:APP_USER);
      l_additional_parameters := l_additional_parameters||'&PRESUPUESTO_NUMERO='||apex_util.url_encode(:PRESUPUESTO_ID);
      xlog (l_proc, 'url (orig):' || 'http://Servidor-New:8181/JasperReportsIntegration/report');
   -- generate the report and return in BLOB
  xlib_jasperreports.set_report_url ('http://Servidor-New:8181/JasperReportsIntegration/report');
  xlib_jasperreports.get_report(
                                   p_rep_name => '&JASPER_HOME./PRESUPUESTO_CNO',
                                   p_rep_format => 'pdf',
                                   p_data_source => '&JASPER_HOME.',
                                   p_rep_locale => 'es_ES',
                                   p_additional_params => l_additional_parameters,
                                   p_out_blob            => l_blob,
                                   p_out_mime_type       => l_mime_type
   -- set mime header and filename
   OWA_UTIL.mime_header (ccontent_type      => l_mime_type,
                         bclose_header      => TRUE);
   -- send Content-Disposition and suggest a file name for saving
   htp.p('Content-Disposition: attachment; filename="'|| 'Presupuesto.pdf' ||'"');
   -- set content length
   HTP.p ('Content-length: ' || DBMS_LOB.getlength (l_blob));
   OWA_UTIL.http_header_close;
   -- download the file and display in browser
   WPG_DOCLOAD.download_file (l_blob);
   -- release resources
   DBMS_LOB.freetemporary (l_blob);
   -- stop rendering of APEX page
  apex_application.g_unrecoverable_error := TRUE;
/* apex_application.stop_apex_engine;                               -------I PROVE WITH THIS ONE AND IT DOESN'T WORK
   apex_util.redirect_url (                                      --------IF I SET THE BUFFER RESET TO TRUE, IT CLEAN THE FIELDS BUT DON'T PRINT AND IF I SET TO FALSE IT PRINT BUT DON'T CLEAN THE FIELDS.
p_url => 'f?p=&APP_ID.:30:' || :SESSION,
                          p_reset_htp_buffer => true ); */
    -- Limpieza de ITEMS collection
apex_collection.truncate_collection(p_collection_name => 'ITEMS');  -----I TRIED TO PUT THIS PART UPPER THAN THE g_unrecoverable_erro BUT IS THE SAME THING.
:P30_CI:='';
:P30_NOMB_AP_PACIENTE:=' ';
:P30_HISTORIA_PACIENTE:= NULL;
:P30_RIF_RESP_PAGO:=' ';
:P30_NOMBRE_RESP_PAGO:=' ';
EXCEPTION
   WHEN OTHERS
   THEN
      xlog (l_proc, SQLERRM, 'ERROR');
      RAISE;
END;
I really aprecciate your help. Thank you Nicolette!!!
Ricardo Capuz