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PortletLayoutListener

    • Asked - Nov 2, 2011, 03:48 PM
    / Viewed 25877 Times
    Hi all,

    I'm trying to perform some actions while a porltet is removed from the page. According to the API doc, I know that I can get the portlet id and the plid(BTW, what is a plid?), but the work I want to do here requires to get the page id and some info from the preference of the portlet being removed. So, what APIs can I use to get those info?

    Thanks a lot.

      Asked 13 Years Ago By

      Derek Li

      New Member

      Derek Li

      Posts: 14

      Join Date: 04/28/11

      Last Post Date: 01/04/16

      1 Answers

      0
      Answered - Nov 2, 2011, 06:37 PM
      (Edited)
      Now I sort of know that I can get portlet preferences with PortletPreferencesLocalServiceUtil.getPortletPreferences(plid, portletid) , but there's no detailed doc describing the returned values. Can someone please give some info?

      I did some google and find plid is the page id. But how can I get the corresponding page name with this id to get the same results just as the following code:

      ThemeDisplay themeDisplay = (ThemeDisplay) request.getAttribute(WebKeys.THEME_DISPLAY);
      themeDisplay.getLayout().getName(themeDisplay.getLocale());

      I know I can use:

      LayoutLocalServiceUtil.getLayout(plid)

      to get the layout then invoke the getName() method to get the page name, but how do I get the themeDisplay.getLocale()?


      Besides, where should I define this listener to make Liferay aware of it? Thanks a lot.
      Replied - Nov 3, 2011, 08:53 AM
      (Edited)
      Hi Derek,

      You can define your portletLayoutListener in liferay-portlet.xml. See the journal content portlet for an example:

      <portlet>
		<portlet-name>56</portlet-name>
		<icon>/html/icons/journal_content.png</icon>
...
		<portlet-layout-listener-class>com.liferay.portlet.journalcontent.JournalContentPortletLayoutListener</portlet-layout-listener-class></portlet>


      At this point it is impossible to find themeDisplay.getLocale() because it's the locale of the current user but you can get the default one with LocaleUtil.getDefault().
      Replied - Nov 3, 2011, 03:55 PM
      (Edited)
      Amos Fong:
      Hi Derek,

      You can define your portletLayoutListener in liferay-portlet.xml. See the journal content portlet for an example:

      <portlet>
		<portlet-name>56</portlet-name>
		<icon>/html/icons/journal_content.png</icon>
...
		<portlet-layout-listener-class>com.liferay.portlet.journalcontent.JournalContentPortletLayoutListener</portlet-layout-listener-class></portlet>


      At this point it is impossible to find themeDisplay.getLocale() because it's the locale of the current user but you can get the default one with LocaleUtil.getDefault().



      Thanks a lot, Amos. Here comes the last question:

      I found that the preferences data saved in DB was in XML format, is there a simple way to transform into com.liferay.portlet.Preference?
      Replied - Nov 4, 2011, 02:04 AM
      (Edited)
      The code used in JournalContentPortletLayoutListener.java should also work for you:

      		Layout layout = LayoutLocalServiceUtil.getLayout(plid);

		PortletPreferences preferences =
			PortletPreferencesFactoryUtil.getPortletSetup(
				layout, portletId, StringPool.BLANK);

		String articleId = preferences.getValue("article-id", null);