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Re: [Wonder-disc] Problem loading models with cross model relationships
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From: <ge...@mo...> - 2007-02-23 12:10:11
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<br>
I´m getting a quite similar error after updating to the latest version
of ERExtensions (Needless to say, it used to work before <span
class="moz-smiley-s1"><span> :-) </span></span>). <br>
One Entity ConsultaXGrupoDeMedicoes in EOModel NUST of my app has a
relationship to Entity GrupoDeMedicoes, which is part of the Framework
"ObjetoSaude". It seems that when the connection dictionary of NUST is
adjusted, the Entity cannot yet be resolved. I´m not using
ERPrototypes, though, nor do I use inheritance.<br>
<br>
<br>
08:42:43 DEBUG [ERXModelGroup.java:74] - Loading bundles("Auditoria",
"ObjetoSaude", "Permissao",...)<br>
08:42:43 DEBUG [ERXModelGroup.java:697] - Adjusting NUST<br>
08:42:43 DEBUG [ERXModelGroup.java:728] - New Connection Dictionary
for NUST: {...}<br>
08:42:45 WARN [ERXNSLogLog4jBridge.java:42] - A fatal exception
occurred: EORelationship(): cannot find entity named GrupoDeMedicoes
for destination of relationship grupoDeMedicoes in entity
ConsultaXGrupoDeMedicoes.<br>
[2007-02-23 08:42:45 BRT] <main>
java.lang.IllegalArgumentException: EORelationship(): cannot find
entity named GrupoDeMedicoes for destination of relationship
grupoDeMedicoes in entity ConsultaXGrupoDeMedicoes.<br>
at
com.webobjects.eoaccess.EORelationship.<init>(EORelationship.java:731)...<br>
<br>
<br>
I have to admit I´m on Windows ... any clue what to do?<br>
<br>
Georg<br>
<br>
<blockquote cite="mid...@ma..."
type="cite">
<pre wrap="">You could be on the right track there.
Looking at it again, The error occurs when it's trying to access the
attributes of entity A which has a relationship to entity B which is
in another model.
As it turns out, entity A is also a subclass of an entity which is in
a model which hasn't been loaded yet.
Alan
On 22-Feb-07, at 6:27 PM, Chuck Hill wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I have an old bit of code in a framework that says:
/**
* Registers all of the EOModels that we have switched
connection dictionaries for with their
* EODatabase provided that the model's name is not in
modelNamesToIgnore(). This was done to
* work around a bug in this situation: two EOModels, an
EOEntity in one is a sub-class of an
* EOEntity in the other, and an instance of the sub-class is
created before any entities in the
* model containing the superclass are created. This results in
this exception:<br>
* <br>
* java.lang.NullPointerException<br>
* at
com
.webobjects
.jdbcadaptor.FrontbasePlugIn._newPrimaryKey(FrontbasePlugIn.java:
215)<br>
* at
com
.webobjects
.jdbcadaptor.FrontbasePlugIn.newPrimaryKeys(FrontbasePlugIn.java:
205)<br>
* at
com
.webobjects
.jdbcadaptor
.JDBCChannel.primaryKeysForNewRowsWithEntity(JDBCChannel.java:544)<br>
* at
com
.webobjects
.eoaccess
.EODatabaseContext
._batchNewPrimaryKeysWithEntity(EODatabaseContext.java:5697)<br>
* at
com
.webobjects
.eoaccess
.EODatabaseContext
.prepareForSaveWithCoordinator(EODatabaseContext.java:5676)<br>
* at
com
.webobjects
.eocontrol
.EOObjectStoreCoordinator
.saveChangesInEditingContext(EOObjectStoreCoordinator.java:389)<br>
* at
com
.webobjects
.eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:
2486)<br>
* <br>
* It appears that when the sub-class referred to its parent
that it was not found in the database. This code just registeres
each EOModel with it's database.
*/
Does that sound at all plausible to be what is afflicting you?
Chuck
On Feb 22, 2007, at 3:15 PM, Alan Zebchuk wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Yes. The entity in the other model has a parent entity.
Alan
On 22-Feb-07, at 6:07 PM, Chuck Hill wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Are you using inheritance in any of the relavent entities?
On Feb 22, 2007, at 3:02 PM, Alan Zebchuk wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Actually it's not a flattened relationship. At first thought, I
thought it was because it was looking for an Entity in a Model
which
hasn't been loaded yet (which is the case). However, it has already
loaded another model which has relationships to the same entity
which
it now can't find.
Alan
On 22-Feb-07, at 5:26 PM, <a class="moz-txt-link-abbreviated" href="mailto:won...@li...">won...@li...</a>
wrote:
</pre>
<blockquote type="cite">
<pre wrap="">I'm guessing that is a flattened relationship ... I THINK I should
skip flattened relationships when flattening prototypes? Anyone
have
a reason to believe this is not true?
</pre>
</blockquote>
<pre wrap="">
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<pre wrap="">
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<br>
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<pre class="moz-signature" cols="72">--
\o/ Georg von Bülow, Moleque de Idéias Educação e Tecnologia Ltda
| Phone: 55-21-2710-0178 E-mail: <a class="moz-txt-link-abbreviated" href="mailto:ge...@mo...">ge...@mo...</a>
/ \ <a class="moz-txt-link-freetext" href="http://www.moleque.com.br">http://www.moleque.com.br</a> Niterói - Rio de Janeiro - Brasil</pre>
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