Having Trouble with Drill Down Report

Question

Hello,
I am having issues with getting Carl's example to work. http://htmldb.oracle.com/pls/otn/f?p=11933:13
This is my main query:
SELECT
  AD_SPRIDEN_ID,
  AD_FIRST_NAME_PREF,
  AD_LAST_NAME_PREF,
  AD_SPOUSE_BANNER_ID,
  AD_SPS_PREF_FIRST_NAME,
  AD_SPS_PREF_LAST_NAME,
  AD_ATHL_MATCH_GIFTS_CFY,
  AD_CURES_MATCH_GIFTS_CFY,
  AD_UNRES_MATCH_GIFTS_CFY,
  AD_ENDOW_MATCH_GIFTS_CFY,
  AD_FACIL_MATCH_GIFTS_CFY,
  AD_SPS_ATHL_MATCH_GIFTS_CFY,
  AD_SPS_CURES_MATCH_GIFTS_CFY,
  AD_SPS_UNRES_MATCH_GIFTS_CFY,
  AD_SPS_ENDOW_MATCH_GIFTS_CFY,
  AD_SPS_FACIL_MATCH_GIFTS_CFY,
FROM MATCHING_GIFTSI want to drill down on past fiscal year data:
SELECT
  AD_SPRIDEN_ID,
  AD_FIRST_NAME_PREF,
  AD_LAST_NAME_PREF,
  AD_SPOUSE_BANNER_ID,
  AD_SPS_PREF_FIRST_NAME,
  AD_SPS_PREF_LAST_NAME,
  AD_ATHL_MATCH_GIFTS_CFY_1,
  AD_CURES_MATCH_GIFTS_CFY_1,
  AD_UNRES_MATCH_GIFTS_CFY_1,
  AD_ENDOW_MATCH_GIFTS_CFY_1,
  AD_FACIL_MATCH_GIFTS_CFY_1,
  AD_ATHL_MATCH_GIFTS_CFY_2,
  AD_CURES_MATCH_GIFTS_CFY_2,
  AD_UNRES_MATCH_GIFTS_CFY_2,
  AD_ENDOW_MATCH_GIFTS_CFY_2,
  AD_FACIL_MATCH_GIFTS_CFY_2,
  AD_ATHL_MATCH_GIFTS_CFY_3,
  AD_CURES_MATCH_GIFTS_CFY_3,
  AD_UNRES_MATCH_GIFTS_CFY_3,
  AD_ENDOW_MATCH_GIFTS_CFY_3,
  AD_FACIL_MATCH_GIFTS_CFY_3,
  AD_ATHL_MATCH_GIFTS_CFY_4,
  AD_CURES_MATCH_GIFTS_CFY_4,
  AD_UNRES_MATCH_GIFTS_CFY_4,
  AD_ENDOW_MATCH_GIFTS_CFY_4,
  AD_FACIL_MATCH_GIFTS_CFY_4,
  AD_SPS_ATHL_MATCH_GIFTS_CFY_1,
  AD_SPS_CURES_MATCH_GIFTS_CFY_1,
  AD_SPS_UNRES_MATCH_GIFTS_CFY_1,
  AD_SPS_ENDOW_MATCH_GIFTS_CFY_1,
  AD_SPS_FACIL_MATCH_GIFTS_CFY_1,
  AD_SPS_ATHL_MATCH_GIFTS_CFY_2,
  AD_SPS_CURES_MATCH_GIFTS_CFY_2,
  AD_SPS_UNRES_MATCH_GIFTS_CFY_2,
  AD_SPS_ENDOW_MATCH_GIFTS_CFY_2,
  AD_SPS_FACIL_MATCH_GIFTS_CFY_2,
  AD_SPS_ATHL_MATCH_GIFTS_CFY_3,
  AD_SPS_CURES_MATCH_GIFTS_CFY_3,
  AD_SPS_UNRES_MATCH_GIFTS_CFY_3,
  AD_SPS_ENDOW_MATCH_GIFTS_CFY_3,
  AD_SPS_FACIL_MATCH_GIFTS_CFY_3,
  AD_SPS_ATHL_MATCH_GIFTS_CFY_4,
  AD_SPS_CURES_MATCH_GIFTS_CFY_4,
  AD_SPS_UNRES_MATCH_GIFTS_CFY_4,
  AD_SPS_ENDOW_MATCH_GIFTS_CFY_4,
  AD_SPS_FACIL_MATCH_GIFTS_CFY_4
FROM MATCHING_GIFTSExample if the user clicks on AD_ATHL_MATCH_GIFTS_CFY in the first query, I want the following fields to display (note that these are colums. I would want the actual value of the columns to display):
AD_ATHL_MATCH_GIFTS_CFY_1
AD_ATHL_MATCH_GIFTS_CFY_2
AD_ATHL_MATCH_GIFTS_CFY_3
AD_ATHL_MATCH_GIFTS_CFY_4
or if the user selected AD_SPS_CURES_MATCH_GIFTS_CFY, I want the following to display:
AD_SPS_CURES_MATCH_GIFTS_CFY_1
AD_SPS_CURES_MATCH_GIFTS_CFY_2
AD_SPS_CURES_MATCH_GIFTS_CFY_3
AD_SPS_CURES_MATCH_GIFTS_CFY_4
Any help is appreciated,
Kelly

Answer 1

Hi Kelly,
OK - this is what I've done:
1 - Created two application items through Shared Components:
G_CITY_ID
G_DEPTNO
these will be used to pass CITY_ID and DEPTNO values from the page to application processes using Ajax
2 - Created two application processes through Shared Components, with the following settings:
Process Point: On Demand: Run this application process when requested by a page process
Name: GET_DEPARTMENTS
Type: PL/SQL Anonymous Block
Process Text:
BEGIN
HTP.P('<table class="t17Standard" cellspacing="0" cellpadding="0" border="0" summary="">');
HTP.P('<TR>');
HTP.P('<TH class="t17ReportHeader">DEPTNO</TH>');
HTP.P('<TH class="t17ReportHeader">DNAME</TH>');
HTP.P('</TR>');
FOR x IN (SELECT DEPTNO, DNAME FROM DEPT WHERE CITY_ID = :G_CITY_ID ORDER BY DNAME)
LOOP
HTP.P('<TR>');
HTP.P('<TD class="t17data">' || x.DEPTNO || '</TD>');
HTP.P('<TD class="t17data">' || x.DNAME || '</TD>');
HTP.P('</TR>');
END LOOP;
HTP.P('</table>');
END;This will return a list of departments for a selected CITY_ID value in the report
Process Point: On Demand: Run this application process when requested by a page process
Name: GET_EMPLOYEES
Type: PL/SQL Anonymous Block
Process Text:
BEGIN
HTP.P('<table class="t17Standard" cellspacing="0" cellpadding="0" border="0" summary="">');
HTP.P('<TR>');
HTP.P('<TH class="t17ReportHeader">EMPNO</TH>');
HTP.P('<TH class="t17ReportHeader">ENAME</TH>');
HTP.P('<TH class="t17ReportHeader">SAL</TH>');
HTP.P('<TH class="t17ReportHeader">COMM</TH>');
HTP.P('</TR>');
FOR x IN (SELECT EMPNO, ENAME, TO_CHAR(NVL(SAL,0)) SAL, TO_CHAR(NVL(COMM,0)) COMM FROM EMP WHERE DEPTNO = :G_DEPTNO ORDER BY UPPER(ENAME))
LOOP
HTP.P('<TR>');
HTP.P('<TD class="t17data">' || x.EMPNO || '</TD>');
HTP.P('<TD class="t17data">' || x.ENAME || '</TD>');
HTP.P('<TD class="t17data">' || x.SAL || '</TD>');
HTP.P('<TD class="t17data">' || x.COMM || '</TD>');
HTP.P('</TR>');
END LOOP;
HTP.P('</table>');
END;This will return a list of employees for a selected DEPTNO value in the report
3 - On the report page's HTML Header setting, I have entered:
<script type="text/javascript">
function getEmployees(deptno)
  var d = document.getElementById("DEPTNO_" + deptno);
  if (d.style.display == "none")
    var g = new htmldb_Get(null,$x('pFlowId').value,'APPLICATION_PROCESS=GET_EMPLOYEES',0);
    g.add('G_DEPTNO',deptno);
    var gRet = g.get();
    d.innerHTML = gRet;
    d.innerHTML += "";
    d.style.display = "block";
  else
    d.style.display = "none";
function getDepartments(city)
  var d = document.getElementById("CITY_ID_" + city);
  if (d.style.display == "none")
    var g = new htmldb_Get(null,$x('pFlowId').value,'APPLICATION_PROCESS=GET_DEPARTMENTS',0);
    g.add('G_CITY_ID',city);
    var gRet = g.get();
    d.innerHTML = gRet;
    d.innerHTML += "";
    d.style.display = "block";
  else
    d.style.display = "none";
</script>These are two javascript functions that will be called when an item is clicked in the report.
Each runs an Ajax call to the appropriate application process, passes the selected DEPTNO or CITY_ID value into the application items, runs the process, retrieves the results and then inserts that into a DIV next to the item in the report and makes that visible. Clicking the link again just hides the DIV
4 - In the report definition, on the DEPTNO column definition, I have set the following HTML Expression:
<a href="#" onclick="getEmployees('#DEPTNO#');">#DEPTNO#</a><div id="DEPTNO_#DEPTNO#" style="display:none"></div>This creates the DEPTNO as a link and clicking the link runs the getEmployees javascript. Next to the link is a DIV tag with a unique ID (created using #DEPTNO# - which is replaced by the actual DEPTNO value on the row)
5 - I have done a similar thing on the CITY_ID setting:
<a href="#" onclick="getDepartments('#CITY_ID#');">#CITY_ID#</a><div id="CITY_ID_#CITY_ID#" style="display:none"></div>And, that should be it - the user clicks the "link", the javascript is called, the clicked value is passed into an application item, which, in turn, filters the required data. This data is formatted into a table and passed back to the page. The javascript then receives this and inserts it into the DIV next to the link and displays it.
I think the CITY_ID column is one that I added to the standard DEPT table, so you may not have that one, but hopefully you get the idea from the above
Also note that I have used the Theme 17 Standard report template - you will need to adjust the class names in the application processes if you are using a different theme/template
I hope that all makes sense!
Andy