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From Ned Jackson Lovely <njl-tapes...@qu.to>
Subject Re: T5: Editing a db persisted object with BeanEditForm
Date Sat, 01 Sep 2007 14:19:45 GMT
On Fri, Aug 31, 2007 at 06:24:58PM +0300, Imants Firsts wrote:
> How do I correctly set up a BeanEditForm for editing a
> hibernate entity?

I don't think I'm even close to writing idiomatic Tapestry 5 (if such a
thing even exists), but here is the pattern I've been using:

EditMyBean.java
-------
public class EditMyBean {

	@ApplicationState
	private MyDBClass _theBean;

	public MyDBClass getTheBean(){return _theBean;}

	public void onActivate(long id){
		_theBean = getDAO().getById(id);
	}
	public long onPassivate(){
		return _theBean.getId();
	}

        @Component(id = "beanEditForm")
        private BeanEditForm _beanEditForm;


	public void onValidate(){
		//Validate the changes. Add errors to the form using
		//_beanEditForm.recordError(String). This will automagically
		//cause the page to redisplay.
	}

	public void onSuccess(){
		getDAO().saveOrUpdate(_theBean);
	}
}
-------

EditMyBean.html
-------
<html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd">
<head><title>EditMyBean</title></head>
<body>

<t:beaneditform object="theBean">
                        
<t:parameter name="id">
<!-- Marking the getter or setter with @Nonvisual is far
   - preferable, but this will do in a pinch.
  -->                        
</t:parameter>
                
</t:beaneditform>

</body>
</html>
-------


-- 
njl

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