Report with select list and link to call another report

Question

Hi,
I am trying to do 2 reports (REPORT1 and REPORT2).
The first is a summary report (REPORT1).
This report will display sales figures for the year. Now, I need to have a select list in the result set that will have 2 options, depending on which option is chosen, I want to call REPORT2 with the select list as a parameter. How can I do this ?
Let me try to explain what I did.
I created REPORT1 on Page 100
SELECT YEAR, sum(YTD_SALES), APEX_ITEM.SELECT_LIST(1,'DEPARTMENT','Department;DEPARTMENT,Division;DIVISION') Drilldown FROM SALES_ANALYSIS WHERE YEAR > 2000
GROUP BY YEAR ORDER BY YEAR
I created 2 hidden items namely P100_YEAR and P100_DRILLDOWN
I also made the column YEAR as a link and specified both P100_YEAR and P100_DRILLDOWN as parameters to be passed.
Next, I created REPORT2
SELECT YEAR, DECODE(:P100_DRILLDOWN, 'Department', department, 'Division', Division) dept_div, sum(YTD_SALES) ytd_sales
FROM SALES_ANALYSIS
WHERE YEAR = :P100_YEAR
When I run Report 1, it's fine, when I choose either Department or Division from the Select List and click on the link to call Report 2, report 2 is displayed, but the value being passed for P100_DRILLDOWN is not correct and as a result, I am unable to get correct results for Report 2
Am I missing something ? Are there any alternate ways to do what I'm doing ?
Thanks,
Ashok

Answer 1

Hi Ashok,
The link definition will not know the value selected in the list as it is constructed only when the page is being rendered. You would need to create some javascript to handle this. I've done that here: [http://apex.oracle.com/pls/otn/f?p=267:182]
The link on the EMPNO column has been defined in the HTML Expression setting for the column instead of the Link section. The HTML Expression that I have used is:
<a href="#" onclick="javascript:doDrilldown('#EMPNO#',this);">#EMPNO#</a>And, in the page's HTML Header setting, I have added in:
<script type="text/javascript">
function doDrilldown(empno,group)
var g;
var p = group.parentNode;
while (p.tagName != "TR")
  p = p.parentNode;
var x = p.getElementsByTagName("SELECT");
if (x.length > 0)
  g = x[0].value;
var url = "f?p=&APP_ID.:183:&SESSION.::::P183_EMPNO,P183_GROUP:" + empno + "," + g;
document.location.href = url;
</script>When a link is clicked, the doDrilldown function is called passing in the EMPNO value and the "this" object (which identifies the object triggering the call). The function starts from that object and goes up in the HTML tag tree to the nearest TR tag (the row tag that the link is on) and then finds the first SELECT list item on the row and gets its value. It then constructs a URL using this and the EMPNO value and performs a redirect to the second page (page 183 in this example).
Andy