Dear All,
I'm trying to implement session besed forms and have run into the
following error:
ERROR (2002-09-03) 18:56.26:764 [sitemap] (/tc/test-form.html)
HttpProcessor[8080][4]/PipelineNode: Error while processing pipeline at
jndi:/localhost/tc/sitemap.xmap:440:19
org.apache.cocoon.ProcessingException: Exception in
ServerPagesGenerator.generate(): java.lang.IllegalArgumentException:
CreateContext: Session is required
at
org.apache.cocoon.generation.ServerPagesGenerator.generate(ServerPagesGenerator.java:281)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:502)
at
org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:204)
...
It seems that my xsp page (which is processed by the session
transformer)
is attempting to access session context without there being a session.
I was under the (perhaps incorrect) assumption that when you use the
session transformer that it creates a session if necessary. The session
documentation doesn't say very much on this issue.
Many thanks in advance for any tips (or pointers to relevant
docs/howtos).
My ultimate goal is to implement forms with validation, but I haven't
yet
studied all the XMLForms or Schematron stuff (any advice for which one
to
look at first or pointers to examples?).
Best wishes to all,
Alan Hodgkinson
P.S. Here are portions of the revelent files:
----- The pipeline from the sitemap
<!-- Form Handler -->
<map:match pattern="*-form.html">
<map:generate type="serverpages" src="xsp/{1}-form.xsp"/>
<map:transform type="session"/>
<map:transform src="xsp/form2html.xslt"/>
<map:transform src="xsp/simple-page2html.xsl"/>
<map:serialize/>
</map:match>
----- The XSP page that caused the error: user-form.xsp
(Which is called with the url user-form.html)
<xsp:page
language="java"
create-session="yes"
xmlns:xsp="http://apache.org/xsp";
xmlns:session="http://cocoon.apache.org/session/1.0";>
<page>
<title>New User Entry</title>
<!-- Question: is this needed? -->
<session:createcontext name="userdata"/>
<content>
Enter information about the new user:
<session:form name="userInfo">
<session:action>user-info.html</session:action>
<session:content>
<table>
<tr>
<td>User ID</td>
<td><session:inputxml
context="userdata" path="/user/userId"
name="userId" type="text"/>
</td>
...
</table>
<!-- Question: coocon seems to need context & path, why? -->
<session:inputxml
context="userdata" path="/usr/submit" name="submit"
type="submit" value="Create User"/>
</session:content>
</session:form>
</content>
</page>
</xsp:page>
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