Re: Classcastexception _EOCheapMutableArray Solved
Re: Classcastexception _EOCheapMutableArray Solved
- Subject: Re: Classcastexception _EOCheapMutableArray Solved
- From: Lachlan Deck <email@hidden>
- Date: Mon, 10 Dec 2007 14:45:33 +1100
On 10/12/2007, at 2:19 PM, Don Lindsay wrote:
But then if I de-selected everything from a wotomany it would
result in an error?
Not sure I follow what you're suggesting here. But jumping ahead...
I'd hazzard a guess that your problem stems from you trying to use
WOToManyRelationship with a join table. Problem #1. If you haven't
got any joins yet, what's it going to show?
If you had a flattened relationship to your organisations entity, the
problem would go away. However, you may have extra fields in your
join that you're needing to expose.
I am not able to duplicate that with the other wotomany. I can
deselect all items and not experience the error.
On Dec 9, 2007, at 10:13 PM, Lachlan Deck wrote:
On 10/12/2007, at 1:28 PM, Don Lindsay wrote:
Hello Lachlan;
I know there is no data in the TrainingOrgAssoc table for the
user. Does a row have to exist in a relationship entity before
using a WOToManyRelationship?
I believe so - otherwise it won't be of much use to a user. You
can wrap it in a conditional if need be... and even show them in
another condition an option to create one.
On Dec 9, 2007, at 7:23 PM, Lachlan Deck wrote:
On 10/12/2007, at 11:07 AM, Don Lindsay wrote:
I have this one working. But now I have implemented another
wotomanyrealationship. The structure is exactly the same ag the
mgtOfc except it is for training. when I try to load the page
with that wotomany on it I get the follow error trace.
dwtm
Error: java.lang.NullPointerException
Reason:
Stack trace:
File Line# Method Package
EOSortOrdering.java 605 _genericCompareTo
com.webobjects.eocontrol
EOSortOrdering.java 644 compareAscending
com.webobjects.eocontrol
EOSortOrdering.java 522 compareValues com.webobjects.eocontrol
EOSortOrdering.java 363 compare com.webobjects.eocontrol
_NSCollectionPrimitives.java 306 K2SortArray
com.webobjects.foundation
EOSortOrdering.java 202 _sortUsingKeyOrderArray
com.webobjects.eocontrol
EOSortOrdering.java 254 sortArrayUsingKeyOrderArray
com.webobjects.eocontrol
_WOJExtensionsUtil.java 94 _sortEOsUsingSingleKey
com.webobjects.woextensions
WOToManyRelationship.java 456 theList
com.webobjects.woextensions
NativeMethodAccessorImpl.java NA invoke0 sun.reflect
NativeMethodAccessorImpl.java 39 invoke sun.reflect
DelegatingMethodAccessorImpl.java 25 invoke sun.reflect
Method.java 585 invoke java.lang.reflect
NSKeyValueCoding.java 684 methodValue com.webobjects.foundation
NSKeyValueCoding.java 1160 valueInObject
com.webobjects.foundation
NSKeyValueCoding.java 1268 valueForKey
com.webobjects.foundation
WOComponent.java 1539 valueForKey com.webobjects.appserver
NSKeyValueCoding.java 498 valueForKey com.webobjects.foundation
NSKeyValueCodingAdditions.java
What would cause EOSortOrdering to fail like this?
I'd need more info... but EOSortOrdering will not deal
(gracefully) with missing data. So I'm guessing that you're
attempting to use a display key (or something) where the data is
actually null.
with regards,
--
Lachlan Deck
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with regards,
--
Lachlan Deck
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with regards,
--
Lachlan Deck
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