Re: force update

From: Koen Segers (KoenSeger..carlet.be)
Date: Sat Jun 04 2005 - 19:54:52 EDT

  • Next message: Andrus Adamchik: "Re: force update"

    I forgot to say that when i log off and back on with my webapp, the tree is
    printed correctly...

    On Sunday 05 June 2005 01:48, Koen Segers wrote:
    > On Sunday 05 June 2005 01:11, Andrus Adamchik wrote:
    > > > How can i force an update?
    > >
    > > Change an object in question and then call "DataContext.commitChanges
    > > ()" - that's it. If you can elaborate more on the details of what you  
    > > are doing, myself or someone else may spot possible problems.
    >
    > I used the commitchanges.
    > Explain what I'm doing... Not so easy, but I'll try.
    > I have table of sections.
    > Sections have subsections en so on... This way i have created a tree in my
    > database. This tree must be printed in a javascript tree.
    >
    > Still with me?
    >
    > The tree must be printen in correct order. Therefore I created a function
    > that sorts the tree. All this works perfectly.
    >
    > The problem is now when I add a new section. Sometimes (I don't see any
    > particular scheme) it is inserted in the tree, sometimes not...
    >
    > I checked with phpPgAdmin (yeah it's a postgres db) and the new section is
    > added to the db. So far so good!
    > I checked my html and the problem isn't in the java script tree. It just
    > ins't inserted in the tree.
    > Then I did an update of the page containing the tree and checked with
    > ethereal what transactions with my DB occurred. None...
    >
    > Could the problem be the fact that i use my own list (the sorted one)...
    >
    > Here's the sorted list algo:
    > /**
    > *
    > *..eturn List of all child sections (of the baselayer) sorted by their
    > sectionNumber.
    > */
    > synchronized public List getSortedSectionArray(){
    > List unsortedList = new LinkedList();
    > List unsortedFullList = getSectionArray();
    > Iterator i = unsortedFullList.iterator();
    > while (i.hasNext()){
    > Section s = (Section) i.next();
    > if ((s.getToLayer().isBaseLayer())){
    > unsortedList.add(s);
    > }
    > }
    > Collections.sort(unsortedList,
    > new Comparator(){
    > public int compare(Object arg0, Object arg1) {
    > Section section0 = (Section)arg0;
    > Section section1 = (Section) arg1;
    > return
    > section0.getSectionnumber().intValue()-section1.getSectionnumber().intValue
    >(); }
    >
    > }
    > );
    > return unsortedList;
    > }
    >
    > > > I checked with ethereal if there were any transactions to my database.
    > >
    > > Wow! Probably the first time I hear of using Ethereal to debug DB  
    > > interactions (now I want to try it out myself :-)). I would also  
    > > advise to check application log generated by Cayenne - http://
    > > objectstyle.org/cayenne/userguide/deploy/logging.html
    >
    > Where do I put this rule?
    > log4j.logger.org.objectstyle.cayenne.access.QueryLogger = INFO
    >
    > > Andrus
    >
    > Thx for the help!

    -- 
    

    Koen Segers

    <koenseger..carlet.be> <http://eddyvite.dyndns.org>



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