Liferay 5.2 Model Listeners (Hooks)

[Peter Mesotten, modificado hace 15 años.]

I'm trying to define a Model Listener hook using the 5.2 definition for hooks. In 5.1 you could specify your model listeners in liferay-hook.xml:

<hook>
    <model-listener>
        <model-listener-class>be.aca.RegistrationValueListener</model-listener-class>
        <model-name>com.liferay.portlet.expando.model.ExpandoValue</model-name>
    </model-listener>
</hook>

Since 5.2 you have to do it in the portal.properties. So I define my hook like this:

<!--?xml version="1.0" encoding="UTF-8"?-->

<hook>
	<portal-properties>portal-ext.properties</portal-properties>
</hook>

I put a custom portal-ext.properties inside my src folder and enter:

value.object.listener.com.liferay.portlet.expando.model.ExpandoValue=be.aca.RegistrationValueListener

In my listener, I perform an action on creation of an ExpandoValue:

public class RegistrationValueListener implements ModelListener {

	//...

	@Override
	public void onAfterCreate(BaseModel model) throws ModelListenerException {
		System.out.println("BLABLA");
	}

        //...
}

But on form submit, nothing gets logged... What's going wrong? In 5.1 this worked perfectly.

[Atma -, modificado hace 14 años.]

I have exactly the same problem !

With a "UserModelListener" it works perfectly, but with expando, nothing happens :-(

[Simon Göransson, modificado hace 13 años.]

I also have the same problem in liferay 6.05

works fine with a listener for user, but not for any expando field.

Does anyone know why it does not work?

//Simon

[Charles de Courval, modificado hace 12 años.]

Did anyone find a solution to this problem ?

[Chris Chan, modificado hace 12 años.]

I'm also looking for a similar solution.
I was told to use a wrapper plugin (http://www.liferay.com/community/wiki/-/wiki/Main/Wrapper+Plugins) but I'm assuming the ExpandoValueLocalServiceWrapper is the correct one to extend, in particular the updateExpandoValue method?
If this is correct, then is there a set mapping of class names to classNameId so that I could then do a reverse lookup based on the classPK?

[Chris Chan, modificado hace 12 años.]

So I got this working in my solution using something similar to what Peter wrote above, however in my case, I was trying to create a listener in the Audit Hook.

First, Liferay support has mentioned that the User listener not firing for expando value changes is the expected behavior and we have no choice but to look at the expando itself.

So to do this, I created a listener against the ExpandoValue model. As Peter mentioned above, I added a line in the portal-ext.properties like so:

value.object.listener.com.liferay.portlet.expando.model.ExpandoValue=com.liferay.portal.audit.hook.listeners.ExpandoValueListener

For my situation, I was checking for updates only to an existing expando field on the User. So my class looks something like this:

public class ExpandoValueListener extends BaseModelListener<expandovalue> {

	public void onBeforeUpdate(ExpandoValue expandoValue) throws ModelListenerException {
                        //Check if the expando value being updated is a user attribute
			Long classNameId = ClassNameLocalServiceUtil.getClassNameId("com.liferay.portal.model.User");
			if(expandoValue.getClassNameId() == classNameId){
                                    .........
			}
	}
}
</expandovalue>

Hope this helps,
Chris

[Charles de Courval, modificado hace 12 años.]

Hi,
I finally found a solution to my listener problems. I've described it here.

It's all related to a bug in Liferay LPS-10988 .

cheers.