Problem with s:convertEntity

[seto]

When I choose one of the category, nothing happen. But when i choose the no selection label, the form is submitted normally. Anyone could help me? Please, I'm waiting anxiously online now.

 <h:form>
 <s:validateAll>
 <h:messages globalOnly="true" />
 <h:panelGrid columns="2">
 <h:outputText value="tag />
 <h:inputText value="#{brand.tag}" required="true" />
 <h:outputText value="name" />
 <h:inputText value="#{brand.name}" required="true" />
 <h:outputText value="category" />
 <h:selectOneMenu value="#{brand.category}">
 <s:selectItems value="#{categoryList}" var="category"
 label="#{category.name}" noSelectionLabel="please choose" />
 <s:convertEntity />
 </h:selectOneMenu>
 </h:panelGrid>
 <h:commandButton value="new" action="#{brandHome.persist}"
 rendered="#{!brandHome.managed}" />
 <h:commandButton value="edit" action="#{brandHome.update}"
 rendered="#{brandHome.managed}" />
 <h:commandButton value="delete" action="#{brandHome.remove}"
 rendered="#{brandHome.managed}" />
 </s:validateAll>
 </h:form>

 @SuppressWarnings("unchecked")
 @Factory
 public void getCategoryList() {
 entityManager.clear();
 categoryList = entityManager.createQuery("from Category category")
 .getResultList();
 Contexts.getSessionContext().flush();
 }

 <factory name="brand" value="#{brandHome.instance}" />
 <fwk:entity-home name="brandHome"
 entity-class="com.hongyang.domain.directory.Brand" />

 @ManyToOne
 @JoinColumn(name = "category")
 private Category category = new Category();

[seto]

I've tried the entity-query to be running sucessful.
So it seem that it is caused by the type. The converter seems to have the problem of judge the type of the object. What should I do to make it run?

[seto]

I don't want to use the entity-query because of the limitation of it.

[seto]

Oh, I see. The @DataModel outjected the List as DataModel, so the entityConverter can't judge the type. Should I add an issue for s:convertEntity DataModel not supported?

[pmuir]

s:convertEntity doesn't need to know about DataModels, and s:selectItems, which does need to, does know about them.

What version of Seam? Add a message component to the h:selectOneMenu and see why it's not submitting.

[seto]

1.2.1 GA. The reason is 'Error: "_id19": ????.', translating into English as 'Error:"_id19":invalid option.

[seto]

I thought I'm misunderstanding it. It isn't caused by datamodel. I use the @Out error again. I'm confused.

[seto]

The field is annotated as below. I forgot to show here.

 @SuppressWarnings("unused")
 @DataModel
 private List<Category> categoryList;

[pmuir]

is this happening inside a long running conversation?

[seto]

No

[pmuir]

http://wiki.jboss.org/wiki/Wiki.jsp?page=SeamProblemsFAQ

[seto]

Thanks. I make it into long-running conversation and it runs.

[fhh]

Why is the conversation approach recommended.

I thought entites do require overwriting equals() anyway because it is used in many other locations as well.


Regards

Felix

[pmuir]

http://hibernate.org/109.html

[fhh]

Exactly that was my point.

I was refering to the wiki page:

Strongly Recommended Ensure that you are in a long-running conversation that spans the both the select list creation and the submission of the form.

I would strongly recommend to implement a proper equals() method (by comparing ids and using object identity only if ids are null.).

Regards

Felix