Just a note: I noticed the same problem when I add a blank enumeration.
For instance:
public enum ProjectStatus {
BLANK(""),
PENDING,
IN_PROGRESS,
COMPLETE,
CANCELED;
private String value;
private ProjectStatus() {
this.value = name();
}
private ProjectStatus(String value) {
this.value = value;
}
public String toString() {
return value;
}
}
The blank value works as expected in the "Edit Project" scenario, but
not in the "New Project" scenario.
Howard M. Lewis Ship (JIRA) wrote:
[ https://issues.apache.org/jira/browse/TAPESTRY-2176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12570335#action_12570335 ]
Howard M. Lewis Ship commented on TAPESTRY-2176:
------------------------------------------------
From the stack trace, it looks like things may have worked, and that the submit
failed because the value passed from the client to the server (the null) was
then used when generating a URL.
I'll be putting together a test to see how well this is all handled.
Select component cannot store a blank value on the client side and have it
represent null.
------------------------------------------------------------------------------------------
Key: TAPESTRY-2176
URL: https://issues.apache.org/jira/browse/TAPESTRY-2176
Project: Tapestry
Issue Type: Bug
Components: Core Components
Affects Versions: 5.0.10
Environment: Windows XP, Eclipse 3.3.1, Hibernate, Jetty
Reporter: Daniel
Assignee: Howard M. Lewis Ship
When implementing a select component that is populated with values from a
database column, which represents a many to one relationship with the
object/entity represented by the form containing the select component, blank
values can be added and validated when editing the object/entity, but not when
creating a new object/entity.
For example, on a form representing a Product entity that contains a select
component with a list of Manufacturers, it is possible to:
1. have a blank Manufacturer by default
2. edit a Product and select the blank Manufacturer and get the
validation="required" message when attempting to save
but it is not possible to get the validation message when creating a new
Product if the blank Manufacturer is selected when saving. Instead the
following exception (partial) is thrown:
* org.apache.tapestry.ioc.internal.util.Defense.notBlank(Defense.java:59)
*
org.apache.tapestry.internal.TapestryInternalUtils.encodeContext(TapestryInternalUtils.java:519)
*
org.apache.tapestry.internal.services.ComponentInvocationImpl.getPath(ComponentInvocationImpl.java:101)
*
org.apache.tapestry.internal.services.ComponentInvocationImpl.buildURI(ComponentInvocationImpl.java:60)
* org.apache.tapestry.internal.services.LinkImpl.buildURI(LinkImpl.java:105)
*
org.apache.tapestry.internal.services.LinkImpl.toRedirectURI(LinkImpl.java:120)
*
org.apache.tapestry.internal.services.ResponseImpl.sendRedirect(ResponseImpl.java:69)
*
org.apache.tapestry.internal.services.ActionRenderResponseGeneratorImpl.generateResponse(ActionRenderResponseGeneratorImpl.java:45)
*
org.apache.tapestry.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:66)
*
org.apache.tapestry.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
* org.apache.tapestry.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
*
org.apache.tapestry.services.TapestryModule$39.handle(TapestryModule.java:2073)
*
org.apache.tapestry.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:131)
*
org.apache.tapestry.services.TapestryModule$13.service(TapestryModule.java:911)
* com.formos.project.services.AppModule$1.service(AppModule.java:134)
--
Daniel Harvey
Software Engineer
[EMAIL PROTECTED]
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