3 Replies Latest reply on Aug 16, 2005 7:18 AM by dmiklancic

    Is this correct? doEdit() redirects to default page instead

    gruenewa
    gruenewa Jul 13, 2005 7:21 AM

      Hi,

      i have deployed a portlet that supports the VIEW, EDIT and HELP mode. When applying the EDIT operation i am redirected to the default page of the portal. This causes that i can't see the result's of the EDIT operation. How can I force JBP2 to stay on the same page.

      A second question: Why do i have to reference a portltet instance in *-pages.xml with this cryptic string <instance-ref>advancedportlet.AdvancedPortlet.AdvancedPortletInstance</instance-ref> instead of <instance-ref>AdvancedPortletInstance</instance-ref> as defined in the portlet-instances.xml?

      Here is the portlet code. It is the modified example from the portal book chapter 2.

      package com.portalbook.portlets;

import java.io.IOException;
import java.io.Writer;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

public class AdvancedPortlet extends GenericPortlet
{

 protected void doEdit(
 RenderRequest renderRequest,
 RenderResponse renderResponse)
 throws PortletException, IOException
 {
 renderResponse.setContentType("text/html");

 Writer writer = renderResponse.getWriter();

 //get the existing parameters to use as defaults.
 String title = renderRequest.getParameter("title");
 String contents = renderRequest.getParameter("contents");

 if (title == null)
 {
 title = "";
 }

 if (contents == null)
 {
 contents = "";
 }

 writer.write("<H1>Portlet Settings</H1>");
 writer.write("<FORM ACTION=");
 writer.write(renderResponse.createActionURL().toString());
 writer.write(">");

 writer.write(
 "Title: <INPUT TYPE=text NAME=title VALUE='" + title + "' SIZE=25>");
 writer.write(
 "Contents: <INPUT TYPE=text NAME=contents VALUE= '"
 + contents
 + "' SIZE=25>");
 writer.write("<P>");
 writer.write("<INPUT TYPE=submit>");
 writer.write("</FORM>");

 }

 protected void doHelp(
 RenderRequest renderRequest,
 RenderResponse renderResponse)
 throws PortletException, IOException
 {
 //return a helpful message
 renderResponse.setContentType("text/html");

 Writer writer = renderResponse.getWriter();
 writer.write(
 "This portlet allows you to change its content and title.");
 }

 protected void doView(
 RenderRequest renderRequest,
 RenderResponse renderResponse)
 throws PortletException, IOException
 {
 renderResponse.setContentType("text/html");
 Writer writer = renderResponse.getWriter();
 String contents = renderRequest.getParameter("contents");
 if (contents != null)
 {
 writer.write(contents);
 }
 else
 {
 //return the default contents
 writer.write("This is the default portlet contents. To change ");
 writer.write("this message, edit the portlet's settings.");
 }
 }

 protected String getTitle(RenderRequest renderRequest)
 {
 String title = renderRequest.getParameter("title");
 if (title != null)
 {
 return title;
 }
 //else return a default title, if we don't have one set yet.
 return "Advanced Portlet";
 }

 public void processAction(
 ActionRequest actionRequest,
 ActionResponse actionResponse)
 throws PortletException, IOException
 {
 //check for parameters
 String title = actionRequest.getParameter("title");
 if (title != null)
 {
 actionResponse.setRenderParameter("title", title);
 }

 String contents = actionRequest.getParameter("contents");
 if (contents != null)
 {
 actionResponse.setRenderParameter("contents", contents);
 }
 }
}


      Here is portlet.xml 
      <?xml version="1.0" encoding="UTF-8"?>
<portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"
 version="1.0"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd">
 <portlet>
 <description>Advanced Portlet Description</description>
 <portlet-name>AdvancedPortlet</portlet-name>
 <display-name>Advanced Portlet</display-name>
 <portlet-class>com.portalbook.portlets.AdvancedPortlet</portlet-class>
 <expiration-cache>-1</expiration-cache>
 <supports>
 <mime-type>text/html</mime-type>
 <portlet-mode>VIEW</portlet-mode>
 <portlet-mode>EDIT</portlet-mode>
 <portlet-mode>HELP</portlet-mode>
 </supports>
 <supported-locale>en</supported-locale>
 <portlet-info>
 <title>Advanced Portlet</title>
 <short-title>Adv. Portlet</short-title>
 <keywords>Advanced</keywords>
 </portlet-info>
 </portlet>
 </portlet-app>


      Here is advanced-pages.xml 

      <pages>
 <portal-name>default</portal-name>
 <page>
 <page-name>advancedportlet</page-name>
 <window>
 <window-name>AdvancedPortletWindow</window-name> <instance-ref>advancedportlet.AdvancedPortlet.AdvancedPortletInstance</instance-ref>
 <default>true</default>
 <region>center</region>
 <height>0</height>
 </window>
 </page>
</pages>


      Last but not least portlet-instances.xml 
      <?xml version="1.0" standalone="yes"?>
<instances>
 <instance>
 <instance-name>AdvancedPortletInstance</instance-name>
 <component-ref>AdvancedPortlet</component-ref>
 </instance>
</instances>


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