Error when trying to use ERTaggable Framework
Error when trying to use ERTaggable Framework
- Subject: Error when trying to use ERTaggable Framework
- From: Helmut Schottmüller <email@hidden>
- Date: Fri, 27 Jun 2008 18:35:22 +0200
Hi,
I tried to use ERTaggable framework for one of my models. I am using
the "magic" way with database migration. But when I start my app, the
migration fails:
un 27 18:23:17 WOSupportManager[5555] (ERXNSLogLog4jBridge.java:43)
WARN NSLog - A fatal exception occurred: Failed to migrate model
'ERTaggable'.
[2008-06-27 18:23:17 CEST] <main>
er.extensions.migration.ERXMigrationFailedException: Failed to migrate
model 'ERTaggable'.
at
er.extensions.migration.ERXMigrator.migrateToLatest(ERXMigrator.java:
185)
at
er
.extensions
.appserver.ERXApplication.finishInitialization(ERXApplication.java:898)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun
.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun
.reflect
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:
120)
at com.webobjects.foundation.NSNotificationCenter
$_Entry.invokeMethod(NSNotificationCenter.java:601)
at
com
.webobjects
.foundation
.NSNotificationCenter.postNotification(NSNotificationCenter.java:545)
at
com
.webobjects
.foundation
.NSNotificationCenter.postNotification(NSNotificationCenter.java:559)
at com.webobjects.appserver.WOApplication.run(WOApplication.java:878)
at er.extensions.appserver.ERXApplication.run(ERXApplication.java:992)
at com.webobjects.appserver.WOApplication.main(WOApplication.java:324)
at er.extensions.appserver.ERXApplication.main(ERXApplication.java:535)
at
de
.conscius.supportmanager.application.Application.main(Application.java:
33)
Caused by: com.webobjects.foundation.NSForwardException
[java.lang.NullPointerException] null: Failed to create sql helper for
the database with the product name 'null'.
at er.extensions.jdbc.ERXSQLHelper.newSQLHelper(ERXSQLHelper.java:1296)
at er.extensions.jdbc.ERXSQLHelper.newSQLHelper(ERXSQLHelper.java:1243)
at er.extensions.jdbc.ERXSQLHelper.newSQLHelper(ERXSQLHelper.java:1238)
at er.extensions.jdbc.ERXSQLHelper.newSQLHelper(ERXSQLHelper.java:1251)
at
er.extensions.migration.ERXMigrator.migrateToLatest(ERXMigrator.java:
172)
... 14 more
I am using latest wonder, WO 5.3.3
I assume, that I can use the tag migration in ANY migration step, not
only the first one, isn't it? Anyway, I removed my database and added
it into the first migration step.
Is it possible that the framework is not working with PostgreSQL
databases?
Or do I have to add a taggable attribute to my entity manually (or by
using the migration)? I didn't do anything to my taggable entity.
After reading the quick start I suppose that the migration step does
all the necessary options for me.
Regards,
Helmut
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