Allowing portlet to disappear

[8年前 に Jacob Hall によって更新されました。]

Is there a way to make a portlet completely disappear? Im trying to make a portlet that displays content but if theres no content I don't want the portlet to be visible. Is there any suggestions on how I could do this or if its even possible to do this?

[8年前 に David H Nebinger によって更新されました。]

Disable portlet borders and that should do it.

[8年前 に Olaf Kock によって更新されました。]

Jacob Hall:

Is there a way to make a portlet completely disappear?

Go with David's answer. Some more reason: I've seen one portlet that was completely hidden if it had nothing to show. This is a maintenance nightmare: A page administrator can't even remove it from the page. Thus, if you disable the portlet borders, at least the page administrator will have their little transparent overlays/controls to configure/remove the portlet if needed.

With this, you just don't output any content and make Liferay output no border - done.

[8年前 に Jacob Hall によって更新されました。]

How do you recommend disabling the boarders on a per porlet basis?

[8年前 に Olaf Kock によって更新されました。]

That's (apart from globally disabling them or clicking "Look&Feel" and selecting "false") a bit harder.

You could use the API to batch-change all of your portlet's look&feel properties (Can't tell you the approach off my head - that'd require some research). Another option is to try out the use-default-template configuration in liferay-portlet.xml. I admit never to have tried this though.

If we're lucky, the simple solutions from my first line help already...

[8年前 に Jacob Hall によって更新されました。]

What about if you want to turn the boarders off based if the portlet has content or not? Is there an easy way to go about it?

[8年前 に Amos Fong によって更新されました。]

The requests portlet "hides" itself if content is empty which sounds like what you are attempting to do. It sets this attribute if there's no requests:

renderRequest.setAttribute(WebKeys.PORTLET_DECORATE, Boolean.FALSE);

[8年前 に Olaf Kock によって更新されました。]

Amos Fong:

renderRequest.setAttribute(WebKeys.PORTLET_DECORATE, Boolean.FALSE);

<add to="toolbox">Neat! Thanks</add>

[8年前 に David H Nebinger によって更新されました。]

Jacob Hall:

How do you recommend disabling the boarders on a per porlet basis?

On a per portlet basis? Just go to gear menu, look and feel, and set the "show borders" dropdown to no.