Skip to Main Content

APEX

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

Download File From Custom Table Using Application Express XE...

ShellieMay 22 2006 — edited Nov 13 2009
I promise this is my last question about the application that I am currently developing...if I can just get this piece of functionality to work then I should be done done done!...at least until the users want more functionality. ;=)

So with that said...I am fighting with the functionality in Application Express that allows you to upload/download files to a custom table....upload appears to work with no issue but the download piece is giving me fits!!! Please note that I am using XE Production and I keep encountering the problem where Internet Explorer tells me that I am not authorized to view this page...HTTP Error 403 - Forbidden.

I believe I have followed all of the instructions located within the following link...
http://download-west.oracle.com/docs/cd/B25329_01/doc/appdev.102/b25309/adm_wrkspc.htm#BEJDIJAH

I ran the following using SQL Command line (I was logged on as "system" when I ran it)....
alter session set current_schema=FLOWS_020100;
CREATE OR REPLACE function wwv_flow_epg_include_mod_local(
procedure_name in varchar2)
return boolean
is
begin
if upper(procedure_name) in (
'CLUTCH.DOWNLOAD_TRIBAL_KNOWLEDGE') then
return TRUE;
else
return FALSE;
end if;
end wwv_flow_epg_include_mod_local;


CLUTCH is my schema name and my procedure is called download_tribal_knowledge......as a reference here is the download_tribal_knowledge procedure....

CREATE OR REPLACE PROCEDURE download_tribal_knowledge(p_tk_file_id in number) AS
v_mime VARCHAR2(48);
v_length NUMBER;
v_file_name VARCHAR2(2000);
Lob_loc BLOB;
BEGIN
SELECT TK_FILE_MIME_TYPE,
TK_FILE_ATTACHMENT,
TK_FILE_NAME,
DBMS_LOB.GETLENGTH(TK_FILE_ATTACHMENT)
INTO v_mime,
Lob_loc,
v_file_name,
v_length
FROM TRIBAL_KNOWLEDGE
WHERE TK_FILE_ID = p_tk_file_id;

--
-- set up HTTP header
-- use an NVL around the mime type and if it is a null then set it to application/octect
-- application/octect may launch a download window from windows

owa_util.mime_header( nvl(v_mime,'application/octet'), FALSE );

-- set the size so the browser knows how much to download
htp.p('Content-length: ' || v_length);

-- the filename will be used by the browser if the users does a save as
htp.p('Content-Disposition: attachment; filename="'||substr(v_file_name,instr(v_file_name,'/')+1)|| '"');

-- close the headers
owa_util.http_header_close;

-- download the BLOB
wpg_docload.download_file(Lob_loc);

end download_tribal_knowledge;


The only thing I do not really know if I have done or not is the instructions say that you must compile the function....
"After changing the source code of this function, alter the Oracle Application Express product schema (FLOWS_xxxxxx) and compile the function in that schema.

To alter the product schema, FLOWS_xxxxxx :

Log in to SQL Command Line (SQL*Plus) as SYS or SYSTEM.

Alter the product schema (FLOWS_xxxxxx) by entering the following command:

ALTER SESSION SET CURRENT_SCHEMA FLOWS_xxxxxx;

Compile the function wwv_flow_epg_include_local.sql."


I do not know how to "compile" this function...any ideas on how you compile a function? I am also curious if the instructions are correct because it says to compile the function called wwv_flow_epg_include_local.sql...this function is named differenctly from the one above (www_flow_epg_include_mod_local.sql). Am I missing anything else??? Seems like I must be close since I appear to be having a security issue? Why can I not download the document(s) that I have uploaded? Any insight would be greatly appreciated!!!!!

Best regards,
Shellie
Comments
Locked Post
New comments cannot be posted to this locked post.
Post Details
Locked on Dec 11 2009
Added on May 22 2006
26 comments
4,886 views