Re: Problem using BeanEditForm with a POJO

Robert Zeigler Sat, 02 May 2009 21:18:53 -0700

Hi Matt,

Hm, that's an odd exception.

The way BeanEditForm works is to lookup an "editor block" for eachproperty, based on the "datatype" for that property (datatype isdetermined by the DataTypeAnalyzer service; lookup of the block is thejob of the BeanBlockSource service). The information needed for eachof the editor blocks to function is stashed in a"PropertyEditContext", which is made available to the blocks by theBeanEditor component via the Enviromental service. Which is why I'msaying your exception looks weird: it's saying that thePropertyEditContext wasn't available from the environment. Since thispresumably happens while rendering the bean editor, it's weird,because property edit context /should/ be available!


The mailing list strips attachments; can you post the project elsewhere?
Also, what version of t5?

Robert

On May 2, 2009, at 5/210:46 PM , mraible wrote:

I was able to fix the problem by commenting out field.isRequired()in the

following method:


   public void insideLabel(Field field, Element labelElement) {
       if (inError(field)) {
           addErrorClassToCurrentElement("error");
       }/*
       if (field.isRequired()) {
           labelElement.raw(" *");
       }*/

   }

Is there a way to use similar logic and prevent the exception from
happening?

Thanks,

Matt


mraible wrote:


I tried using your hint by changing my template to the following:

<t:layout title="message:personDetail.title"

heading="message:personDetail.heading"menu="literal:PersonMenu"xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">


   <t:messagebanner t:id="message" type="type"/>

   <form t:id="personForm" clientValidation="true">
       <t:errors/>

       <div class="t-beaneditor">
           <t:beaneditor t:id="person" object="person" exclude="id"/>

           <div class="t-beaneditor-row" style="text-align: center">
               <input type="submit" id="save"
value="message:button.save"/>
               <input t:type="submit" t:id="delete" id="delete"
value="message:button.delete"/>
               <input t:type="submit" t:id="cancel" id="cancel"
value="message:button.cancel"/>
           </div>
       </div>
   </form>

   <script type="text/javascript">
       Form.focusFirstElement($("personForm"));
   </script>

</t:layout>

Unfortunately, I still get the same error when trying to view thispage:

[exec] ERROR [btpool0-3] PersonForm.run(78) | Render queueerror inAfterRender[PersonForm:person.loop]: Failure reading parameter'validate'

of component core/PropertyEditBlocks:datefield: No object of type

org.apache.tapestry5.services.PropertyEditContext is available fromthe

Environment.  Available types are org.apache.tapestry5.RenderSupport,
org.apache.tapestry5.ValidationDecorator,
org.apache.tapestry5.ValidationTracker,
org.apache.tapestry5.internal.services.ClientBehaviorSupport,
org.apache.tapestry5.services.FormSupport,
org.apache.tapestry5.services.Heartbeat.
    [exec] org.apache.tapestry5.ioc.internal.util.TapestryException:
Failure reading parameter 'validate' of component
core/PropertyEditBlocks:datefield: No object of type

org.apache.tapestry5.services.PropertyEditContext is available fromthe

Environment.  Available types are org.apache.tapestry5.RenderSupport,
org.apache.tapestry5.ValidationDecorator,
org.apache.tapestry5.ValidationTracker,
org.apache.tapestry5.internal.services.ClientBehaviorSupport,
org.apache.tapestry5.services.FormSupport,
org.apache.tapestry5.services.Heartbeat. [at

classpath:org/apache/tapestry5/corelib/components/BeanEditor.tml,line 3,

column 47]
    [exec]     at

org.apache.tapestry5.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:909)

    [exec]     at

org.apache.tapestry5.internal.structure.ComponentPageElementImpl.access$200(ComponentPageElementImpl.java:50)

    [exec]     at

org.apache.tapestry5.internal.structure.ComponentPageElementImpl$6.render(ComponentPageElementImpl.java:189)

    [exec]     at

org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:68)

    [exec]     at

org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:108)

    [exec]     at

$PageRenderQueue_12104869ca2.render($PageRenderQueue_12104869ca2.java)

    [exec]     at

$PageRenderQueue_12104869c9b.render($PageRenderQueue_12104869c9b.java)

    [exec]     at

org.apache.tapestry5.services.TapestryModule$15.renderMarkup(TapestryModule.java:1128)

    [exec]     at

com.company.webapp.services.AppModule$1.renderMarkup(AppModule.java:138)


Here is my PersonForm.java class:

package com.company.webapp.pages;

import org.apache.tapestry5.ioc.annotations.Inject;
import org.apache.tapestry5.annotations.Component;
import org.apache.tapestry5.annotations.InjectPage;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.annotations.Persist;
import org.apache.tapestry5.annotations.Service;
import org.apache.tapestry5.corelib.components.EventLink;
import org.apache.tapestry5.corelib.components.Form;
import org.apache.tapestry5.PersistenceConstants;

import org.appfuse.service.GenericManager;
import com.company.model.Person;

import org.slf4j.Logger;

import java.util.List;

public class PersonForm extends BasePage {
   @Inject
   private Logger log;

   @Inject
   @Service("personManager")
   private GenericManager<Person, Long> personManager;

   @Persist @Property
   private Person person;

   public Person getPerson() {
       return person;
   }

   /**

* Allows setting person object from another class (i.e.PersonList)

    *
    * @param person an initialized instance
    */
   public void setPerson(Person person) {
       this.person = person;
   }

   @InjectPage
   private PersonList personList;

   @Component(id = "personForm")
   private Form form;

   private boolean cancel;
   private boolean delete;

   void onValidateForm() {
       if (!delete && !cancel) {

// manually validate required fields or annotate thePerson

object
           /*if (foo.getProperty() == null ||
user.getProperty().trim().equals("")) {
               form.recordError("Property is a required field.");
           }*/
       }
   }

   void onActivate(Long id) {
       if (id != null) {
           person = personManager.get(id);
       }
   }

   Object onSuccess() {
       if (delete) return onDelete();
       if (cancel) return onCancel();

       log.debug("Saving person...");

       boolean isNew = (getPerson().getId() == null);

       personManager.save(person);

       String key = (isNew) ? "person.added" : "person.updated";

       if (isNew) {
           personList.addInfo(key, true);
           return personList;
       } else {
           addInfo(key, true);
           return this;
       }
   }

   void onSelectedFromDelete() {
       log.debug("Deleting person...");
       delete = true;
   }

   void onSelectedFromCancel() {
       log.debug("Cancelling form...");
       cancel = true;
   }

   Object onDelete() {
       personManager.remove(person.getId());
       personList.addInfo("person.deleted", true);
       return personList;
   }

   Object onCancel() {
       return personList;
   }
}

I've attached my project which you should be able to run with "mvn

jetty:run -Ph2". To reproduce, go to http://localhost:8080/personform and

login with admin/admin.

Thanks,

Matt




Thiago H. de Paula Figueiredo wrote:

Em Sat, 02 May 2009 15:31:15 -0300, mraible <m...@raibledesigns.com>
escreveu:
I have the a Person.java object that I'm trying to use theBeanEditFormcomponent with. It has no Tapestry annotations in it. Is itpossible to
use the BeanEditForm component with it?
Yes. By the way, I've never used any Tapestry annotation in myPOJOs.
<t:layout title="message:personDetail.title"
         heading="message:personDetail.heading"
menu="literal:PersonMenu"

xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>

   <t:beaneditform object="person" id="personForm" exclude="id">
       <t:parameter name="buttons">
You're trying to override the edition block of a non-existentBeanModel
property. Try adding add="buttons" to the BeanEditForm.
Hint: instead of using BeanEditForm in this case, use a Form, anErrorsand a BeanEditor. You'll have complete control on how to add thesubmit
input (and any other thing you need). BeanEditForm = Form + Errors +
BeanEditor + submit input.

--
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago

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Re: Problem using BeanEditForm with a POJO

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