Run Report from PL/SQL with branch to different page

Question

I have an application in which, at various points, I run a PL/SQL procedure to perform an action, and then need to run a report while also navigating away from the current page. The actions are executed on a button click.
I have tried various method, but for the life of me cannot get the system to do both things (ie. run the report and branch to another page). I have tried putting in a branch to page 0 (to execute after processing on the button click), with a request line to print the report, followed by a branch to the other page (also to execute after processing on the button click) - and only the branch to page 0 actually executes. Also tried putting a branch to the other page only, with the print request in the Request parameter - but only runs the report, does not branch to the other page.
I have also tried to put the call to run the report into the PL/SQL code, using utl_http.start_request(url), but that came up with a "Bad Request" error. Also tried using the owa_util.redirect_url call, but also no luck.
I am pulling my hair out at the moment, mainly because I am under pressure to deliver the system in very short time.
Any suggestions would be appreciated.

Answer 1

You can run Report queries from their URL ( f?p=&APP_ID.:0:&SESSION.:PRINT_REPORT=<REPORT NAME>)
So an approach would be to
On Button click, call a JS function that
<li>1. uses Ondemand/Callback process to do the workflow processing(check box selection records)
<li>2. opens the Report as a popup window(from your IR page)
<li>3. Redirect away from the IR page to another page?
Another approach:
<li>1. IR report submits the page
<li>2. In the PLSQL block you do the processing
<li>3. The branch redirects to a URL which would point to the Report URL.
OR
<li>3. Have an onload JS which runs only when the request was the BUTTON request and that opens up a page which points to the report.
Yet another way would be to use htp.p within the PLSQL block that does the workflow processing
So your PLSQL code would be
BEGIN
  --Do the workflow processing here
  --End workflow processing
  htp.p('<script>');
  htp.p(' window.open("f?p=&APP_ID.:0:&SESSION.:PRINT_REPORT=<REPORT NAME>"'); --opens up the PDF report
  htp.p(' window.location.href= "f?p=&APP_ID.:<page number>:&SESSION."');  --to redirect to new page
  htp.p('</script>');
END;