Portlet preferences in Liferay

To set preference for a portlet we need to follow below steps

1.Add below entries in liferay-portlet.xml file

<configuration-action-class>com.portlet.action.configuratoionImpl</configuration-action-class>

Before <instanceable>true</instanceable>

2.Create a custom action class which implements ConfigurationAction interface.

A sample Class

public class configuratoionImpl implements ConfigurationAction {

       @Override

       public void processAction(PortletConfig portletConfig, ActionRequest actionRequest,

                     ActionResponse actionResponse) throws Exception {

                           String cmd = ParamUtil.getString(actionRequest, Constants.CMD);

                           ThemeDisplay themeDisplay=(ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY);

                           if (!cmd.equals(Constants.UPDATE)) {

                                  return;

                           }

//Fetching String values from configuration.jsp page

String noofrecords = ParamUtil.getString(actionRequest, "recordsperpage");

String uname = ParamUtil.getString(actionRequest, "uname");

                          

       String portletResource = ParamUtil.getString(

                                  actionRequest, "portletResource");

PortletPreferences preferences =

                                  PortletPreferencesFactoryUtil.getPortletSetup(

                                         actionRequest, portletResource);

//set all values in preferences and store                           

preferences.setValue("noofrecords", noofrecords);

preferences.setValue("uname", uname);

preferences.store();

                          

SessionMessages.add(actionRequest, portletConfig.getPortletName() + ".doConfigure");

             

       }

       @Override

       public String render(PortletConfig arg0, RenderRequest renderRequest,

                     RenderResponse renderResponse) throws Exception {

              //redirect to configuration jsp

              return "/jsp/configuration.jsp";

       }

}

3.Create a configuration.jsp under the jsp folder

<%

                String redirect = ParamUtil.getString(request, "redirect");

                PortletPreferences preferences = renderRequest.getPreferences();

                String portletResource = ParamUtil.getString(request, "portletResource");

                if (Validator.isNotNull(portletResource)) {

                                preferences = PortletPreferencesFactoryUtil.getPortletSetup(request, portletResource);

                }

                               

%>

<liferay-portlet:actionURL portletConfiguration="true" var="configurationURL" />

<form action="<%= configurationURL.toString() %>" method="post" name="<portlet:namespace />fm">

                <input name="<portlet:namespace />redirect" type="hidden" value="<%= HtmlUtil.escape(redirect) %>" />

                <input name="<portlet:namespace /><%= Constants.CMD %>" type="hidden" value="<%= Constants.UPDATE %>" />

               

                <aui:fieldset label="Configurations">

                <aui:layout>

                <aui:column  first="true">

                                               

                                <table >

                                               

                                                <tr>

                                                                <td><liferay-ui:message key="name" />&nbsp;&nbsp;</td>

                                                                <td  class="lpad15">

                                                                                <aui:input name="name" type="text"  label="" value='<%=  preferences.getValue("uname", "") == null ? "10" : preferences.getValue("uname", "") %>' ></aui:input>

                                                                </td>

                                                </tr>

                                               

                                                <tr>

                                                                <td><liferay-ui:message key="RecordsperPage" />&nbsp;&nbsp;</td>

                                                                <td  class="lpad15">

                                                                                <aui:input name="recordsperpage" type="text"  label="" value='<%=  preferences.getValue("noofRecords", "") == null ? "10" : preferences.getValue("noofRecords", "") %>' ></aui:input>

                                                                </td>

                                                </tr>

                                                <tr>

                                                                <td>

                                                                                <aui:button type="submit" value="save"></aui:button>

                                                                </td>

                                                </tr>

                                </table>

               

               

                </aui:column>

                </aui:layout>

                </aui:fieldset>

</form>

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