File download - wpg_docload NOT opening dialogue ....

Question

Hi all,
I have been researching this for a while, and I can't seem to get to the bottom of it.
Env: Oracle 10.2, Apex 3.2, SuSe (Both EPG and Apache configs)
Here's what I want to do
Allow a user to click on a button to download data from a database table as a file.
%% Region %%%%%%%%%%%%%%%%%%%%
Click on the button below to down the latest report
[BUTTON]
%% End Region %%%%%%%%%%%%%%%%%%
When the user clicks on the button, I would like a "Save As" Dialogue to appear, with the default file name in it, and the use can then save the file.
The button calls the following code, which is within a package :
PROCEDURE DOWNLOAD_APEX_FILE(p_file_id  IN  FILE_UPLOADS.FILE_ID%TYPE)  IS
  l_null_param_str           varchar2(4000) := NULL;
  l_content_type_code        FILE_UPLOADS.CONTENT_TYPE_CODE%TYPE;
  l_file_id                  FILE_UPLOADS.FILE_ID%TYPE;
  l_file_name                FILE_UPLOADS.FILE_NAME%TYPE;
  l_mime_type_code           FILE_UPLOADS.MIME_TYPE_CODE%TYPE;
  l_charset_code             FILE_UPLOADS.DAD_CHARSET_CODE%TYPE;
  l_file_charset_code        FILE_UPLOADS.FILE_CHARSET_CODE%TYPE;
  l_length                   FILE_UPLOADS.DOC_SIZE%TYPE;
  l_blob_content             FILE_UPLOADS.BLOB_CONTENT%TYPE;
BEGIN
  LG.PUSH ('F8_SYNC','DOWNLOAD_APEX_FILE');
  -- get the data from stashed location ..
  select FILE_ID,
         FILE_NAME,
         MIME_TYPE_CODE,
         DOC_SIZE,
         BLOB_CONTENT
    into l_file_id,
         l_file_name,
         l_mime_type_code,
         l_length,
         l_blob_content
    from FILE_UPLOADS
   where FILE_ID = p_file_id;
  l_mime_type_code := 'application/octet';
  LG.D('File ID, name: '||l_file_id||', '||l_file_name);
  LG.D('Doc Size: '||l_length);
  LG.D('Do OWA work.');
  -- Setup HTTP Headers
  owa_util.mime_header( nvl(l_mime_type_code, 'text/plain'), FALSE);
  htp.p('Content-length: '||l_length);
--  htp.p('Content-type: application/octet-stream');
  htp.p('Content-Disposition: attachment; filename="WeatherInfo.csv"');
  owa_util.http_header_close;
  wpg_docload.download_file(l_blob_content);
  TIDY_UP;
  LG.POP;
EXCEPTION
  WHEN OTHERS THEN
    ERR.HANDLE();
END DOWNLOAD_APEX_FILE;(Sorry - Don't seem to be able to format the code snippet - Moderators / admins maybe allow that?)
- Thanks for tip - edited and looks better.
Any help is much appreciated as this is driving me nuts.
I've tried in Firefox and IE. Same -nothing appears - but the code is executed.
Thanks in advance.
Edited by: PJ on May 2, 2010 6:24 AM

Answer 1

Hi
Thanks for your help.
The code is called by clicking a button. When the buttom is selected a process is called which is "On Sumbit and After computations and Validations"
The process is conditional on the buitton being clicked. This is the code ...
BEGIN
  F8_SYNC.DOWNLOAD_WEATHER_FILE;
EXCEPTION
  WHEN OTHERS THEN
    :P50_ERR := SQLERRM;
END;This code gets the data and stashes it in table FILE_UPLOADS and then calls DOWNLOAD_APEX_FILE, being passed the file ID.
I know it is called because the debug messages are written to my log. (LG calls) and there are no errors.
The download procedure code is in the original post ....
thanks again
Edited by: PJ on May 2, 2010 7:19 AM