You are going to run into problems if you simply replace the whole
list. If you can, try and simply add and remove straight from the list
itself. I usually always have add/remove methods in my objects that
have 1:M relations in them to help this. Castor keeps track of the
dependent objects back in the cahce, so replacing the list will lead
to unexpected results, as you have discovered. :)
You should be save wiping the list out (removeAll()) and adding other
objects to it, but just dont replace the list itself.
-Nick
On 6/21/05, Eric Anderson <[EMAIL PROTECTED]> wrote:
>
> This may be my problem. The objects are actually created by struts on
> form submition. I mearly replace the ArrayList with the new one created.
> I know the timestamps won't match, but that shouldn't matter. Shouldn't
> it delete all previous ones, and recreate new ones ?
>
> ie
>
> //receive the form
>
>
> SiteCareForm sForm = (SiteCareForm) form;
>
> //retrive previous castor version of the form
>
> SiteCareForm s2Form = session.getAttribute("myForm);
>
> s2Form.setDates(sForm.getDates);
>
> update(s2Form);
>
> // then store form to session
>
> session.setAttribute(s2Form);
>
>
>
> ?
>
>
>
>
>
>
>
>
>
>
>
>
>
> >>> [EMAIL PROTECTED] 06/21/05 2:16 PM >>>
> Eric,
>
> can you please show me a code fragment that shows us how you are
> calling
> Castor to e.g. delete the objects and add some others from/to the
> collection ?
>
> Thanks
> Werner
>
> Eric Anderson wrote:
> > I have a problem with a one to many relationship. I have one object
> that
> > has an arraylist (1:M). This is the problem.
> >
> > The first time I save that object lets say with 10 objects in the
> > arraylist, it saves 10 rows. If I delete all objects in the
> arraylist
> > and add 3 do an update, I end up with 13 rows, not 3. If I reduce it
> to
> > 0 and do an update, I end up with no rows (no matter how many I had
> in
> > there...).
> >
> > Anyone know why? Here is my mapping file.
> >
> > <class name="org.usiis.struts.SiteCareForm" identity="vaccineId">
> > <map-to table="WWW_SITE_CARE"/>
> > <cache-type type="count-limited"/>
> > <field name="dateVaersSubmitted" type="date" ><sql
> > name="date_vaers_submitted" type="date" dirty="ignore"/></field>
> > <field name="notes" type="string" ><sql name="notes"
> type="char"
> > dirty="ignore"/></field>
> > <field name="permMedicalRec" type="string" ><sql
> > name="perm_medical_rec" type="char" dirty="ignore"/></field>
> > <field name="recievedMedicalCare" type="string" ><sql
> > name="received_medical_care" type="char" dirty="ignore"/></field>
> > <field name="treatmentDate" type="date" > <sql
> > name="treatment_date" type="date" dirty="ignore"/></field>
> > <field name="vaccineId" type="integer" ><sql name="vaccine_id"
> > type="integer" dirty="ignore"/></field>
> > <field name="vaersSubmitted" type="string" ><sql
> > name="vaers_submitted" type="char" dirty="ignore"/></field>
> >
> > <field name="dates" type="org.usiis.struts.SiteCareDatesForm"
> > collection="arraylist"> <sql many-key="vaccine_id"/> </field>
> > <field name="vaccine" type="org.usiis.struts.VaccinationForm">
> > <sql name="vaccine_id" dirty="ignore" read-only="true"/> </field>
> >
> > </class>
> >
> > <class name="org.usiis.struts.SiteCareDatesForm" identity="vaccineId
> Id
> > eventDate" depends="org.usiis.struts.SiteCareForm" >
> > <map-to table="WWW_SITE_CARE_DATES"/>
> > <cache-type type="count-limited"/>
> > <field name="eventDate" type="date"><sql name="event_date"
> > type="date" dirty="ignore"/></field>
> > <field name="Id" type="integer"><sql name="ID"
> > type="integer"/></field>
> > <field name="vaccineId" type="integer"><sql name="vaccine_id"
> > type="integer"/></field>
> > </class>
> >
> > -------------------------------------------------
> > If you wish to unsubscribe from this list, please
> > send an empty message to the following address:
> >
> > [EMAIL PROTECTED]
> > -------------------------------------------------
> >
> >
>
>
> -------------------------------------------------
> If you wish to unsubscribe from this list, please
> send an empty message to the following address:
>
> [EMAIL PROTECTED]
> -------------------------------------------------
>
>
> -------------------------------------------------
> If you wish to unsubscribe from this list, please
> send an empty message to the following address:
>
> [EMAIL PROTECTED]
> -------------------------------------------------
>
>
-------------------------------------------------
If you wish to unsubscribe from this list, please
send an empty message to the following address:
[EMAIL PROTECTED]
-------------------------------------------------
