Apple

Hi Erwin,

what I usually do is call myDisplayGroup.qualifyDataSource();

This causes the displygroup to refetch and therefore you get rid of deleted EO’s.

Hope this works for you.

Regards,

Thomas

Von: webobjects-dev-bounces+thengeroff=email@hidden [mailto:webobjects-dev-bounces+thengeroff=email@hidden] Im Auftrag von WebObjects
Gesendet: Sonntag, 10. Oktober 2004 16:26
An: WebObjects (Group)
Betreff: Re: [still newbie] How to redisplay correctly a WODisplayGroup afterdeleting an EO

Erwin,

This may be what you are looking for to ‘flush’ out the old recordset and request a new one on reloading the page (force a fresh fetch).

session().defaultEditingContext().invalidateAllObjects();

Regards,

-Bill

on 10/10/04 07:55, Erwin at email@hidden wrote:

sorry, could not find any hint in archives...
In my "ListContactPage", I display a list of Agent's contact entities in a WODisplayGroup (master "Agent"- details "contacts") works fine...   (with 'fetches on load' option selected )
    public ListContactPage(WOContext context) {
        super(context);
        this.takeValueForKeyPath(((Session) session()).agent(), "agentContactDisplayGroup.masterObject");
    }
.........
then I select one contact to view the contact info in a "ContactDetailPage"
    public WOComponent viewContactInfo(){
        ContactDetailPage nextPage = (ContactDetailPage)pageWithName("ContactDetailPage");
        nextPage.setTheContact(aContact);
        return nextPage;
    }

In my "ContactDetailPage" I can delete the displayed contact
    public void setTheContact(EOEnterpriseObject aContact){
        theContact = aContact;
    }

    public ListContactPage deleteContact(){
        Agent contactAgent = ((Contact) theContact).agent();
        contactAgent.removeObjectFromBothSidesOfRelationshipWithKey(theContact,"contacts");
        EOEditingContext ec = session().defaultEditingContext();
        try {
            ec.deleteObject(theContact);
            ec.saveChanges();
        } catch (Exception e) {
            ec.revert();
            NSLog.err.appendln("An exception occurred while trying to remove a contact: " + e);
        }
         ListContactPage nextPage = (ListContactPage)pageWithName("ListContactPage");
           return nextPage;
    }
But when the ListContactPage redisplay, the deletec contact is still in the WODisplayGroup... i know it has been deleted from the database .... (if I restart the woapp, I don't get it anymore in teh WODisplayGroup...
si it seems to be a problem of doing a new fetch from the database, WODisplayGroup should do it itself on reload... ,,
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