Hello,
I am having trouble with a Master/Detail relationship between Project/Expense.
I have a Project screen containing a list of expenses (<h:dataTable>) and a
computed total expense (@Formula field in Project ).
* After adding a new expense I'm redirected back to Project.xhtml but my
computed total expense value is wrong...its the old value--until I manually
reload the page using the browser.
* Deleting an Expense always works great for some reason--calculated totals
updated and display w/o crashing.
* If I edit an expense and redirect back to Project.xhtml sometimes the
computed total value is correctly shown and other times I get a Hibernate
exception like this:
| 15:52:17,327 ERROR [AbstractFlushingEventListener] Could not synchronize
database state with session
| org.hibernate.StaleObjectStateException: Row was updated or deleted by
another transaction (or unsaved-value mapping was incorrect):
[com.paragon.spurs.model.Capex#11]
| at
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1699)
| (clip)
|
I'm not sure if these are two issues are part of the same problem or not.
Do I need to invalidate objects in Project.xhtml when I redirect back so the
read fresh from the db? (If so, how can I do that?)
Am I handling conversation scope right?
>From Project.xhtml (initiate edit and create new Expense)
| <s:button view="/CapexEdit.xhtml"
| id="capex"
| value="Edit"
| propagation="none">
| <f:param name="projectProjectId"
value="#{projectHome.instance.projectId}"/>
| <f:param name="capexCapexId" value="#{capex.capexId}"/>
| <f:param name="capexFrom" value="Project.xhtml"/>
| </s:button>
|
| <!-- SNIP! -->
|
| <s:button view="/CapexEdit.xhtml"
| value="Add Capex"
| propagation="begin">
| <f:param name="projectProjectId"
value="#{projectHome.instance.projectId}"/>
| <f:param name="capexFrom" value="Project.xhtml"/>
| <f:param name="capexCapexId"/>
| </s:button>
|
Lots more code--Let me know if it would help to see something in particular.
Thanks for any hints--getting a bit warped after several days not being able to
get anywhere with this.
Greg
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