Extending master view object to query detail records

Question

I have two view objects, master and detail, joined by a view link. I want to extend the VO so that I can use the detail columns in the master view criteria.
My master view object is OutagesView
SELECT Outages.OUTAGE_ID,
Outages.START_DT,
Outages.END_DT,
Outages.OUTAGE_MESSAGE,
Outages.OUTAGE_TYPE,
Outages.UPDATE_ON,
Outages.UPDATE_WHO,
Outages.NAME,
Outages.OUTAGE_SCOPE,
Outages.OUTAGE_CATEGORY
FROM OUTAGES Outages
And the detail is OutageDetailsView
SELECT Apps.DISPLAY_NAME,
Apps.SHORT_DESCRIPTION,
AppOutages.OUTAGE_ID detail_outage_id,
AppOutages.APP_ID,
AppOutages.NOTES,
Apps.ID
FROM APPS Apps, APP_OUTAGES AppOutages
WHERE Apps.ID = AppOutages.APP_ID
In the view link (OutagesView.OutageId to OutageDetailsView.DetailOutageId) I have checked the boxes to Generate Accessors in both the OutagesView and OutageDetailsView. This has allowed me to build the view criteria in OutagesView referencing OutagesDetailView .
When I try run the AppModule, navigate to the view link and specify detail view criteria get an error:
I can see when it creates the query it is specifying OutagesQRST in the subquery which doesn’t exist
SELECT Outages.OUTAGE_ID,
Outages.START_DT,
Outages.END_DT,
Outages.OUTAGE_MESSAGE,
Outages.OUTAGE_TYPE,
Outages.UPDATE_ON,
Outages.UPDATE_WHO,
Outages.NAME,
Outages.OUTAGE_SCOPE,
Outages.OUTAGE_CATEGORY
FROM OUTAGES Outages
WHERE ( ( (EXISTS
(SELECT *
FROM (SELECT Apps.DISPLAY_NAME,
Apps.SHORT_DESCRIPTION,
AppOutages.OUTAGE_ID detail_outage_id,
AppOutages.APP_ID,
AppOutages.NOTES,
Apps.ID
FROM APPS Apps, APP_OUTAGES AppOutages
WHERE Apps.ID = AppOutages.APP_ID) QRSLTSQ1
WHERE ( (UPPER (DISPLAY_NAME) LIKE
UPPER (:pdisplayName || '%')))
AND (OutagesQRSLT.OUTAGE_ID =
QRSLTSQ1.DETAIL_OUTAGE_ID)))))
If I set the VO to expert mode and override the create method in the view impl with
public void create() {
super.create();
setNestedSelectForFullSql(false);
I get the error SQL error during statement preparation:
SELECT Apps.DISPLAY_NAME,
Apps.SHORT_DESCRIPTION,
AppOutages.OUTAGE_ID detail_outage_id,
AppOutages.APP_ID,
AppOutages.NOTES,
Apps.ID
FROM APPS Apps, APP_OUTAGES AppOutages
WHERE Apps.ID = AppOutages.APP_ID WHERE DETAIL_OUTAGE_ID = :Bind_OutageId;
Can someone please point me in the right direction?
Thanks
Kylie

Answer 1

Hi Erp,
Thanks for your response. The queries in the VOs are fine. It is when jdev creates the view criteria between the two that the problem occurs. In instance 1 it creates an alias OutagesQRSLT which doesn't exist. Had this of just been Outages the query would have run.
I tried the to use the expert mode and override the create method in the view impl as I had seen it suggested in some other posts. This is when I got the second error with the :Bind_OutageId. I assumed that jdev would take care of the binding? Perhaps I am wrong. I did pass a value to :pdisplayName.
I guess I need to know if overriding the create method is the right thing to do? and if so where I might be going wrong.
Thanks
Kylie