JSF Adding A Task

Adding A Task

Edit "tool/src/webapp/tasklist/TaskList.jsp"

From:

<%@ taglib uri="http://sakaiproject.org/jsf/sakai" prefix="sakai" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> 
 <f:loadBundle basename="org.sakaiproject.tool.tasklist.bundle.Messages" var="msgs"/>
 
<f:view>
	<sakai:view_container title="Task List Tool">
		<sakai:view_content>
			<h:form id="tasks">
			 	<sakai:view_title value="#{msgs.task_list_title}"/>
			 	<h:outputText value="Hello, #{TaskListBean.currentUserDisplayName}"/>
			 </h:form>
  		</sakai:view_content>	
	</sakai:view_container>
</f:view>

To:

<%@ taglib uri="http://sakaiproject.org/jsf/sakai" prefix="sakai" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> 
 <f:loadBundle basename="org.sakaiproject.tool.tasklist.bundle.Messages" var="msgs"/>
 
<f:view>
	<sakai:view_container title="Task List Tool">
		<sakai:view_content>
			<h:form id="tasks">
			 	<sakai:view_title value="#{msgs.task_list_title}"/>
			 	<h:outputText value="Hello, #{TaskListBean.currentUserDisplayName}"/>
			 	<sakai:panel_edit>
			 		<h:inputText value="#{TaskListBean.taskText}" size="60"/>
	 				<h:commandButton value="#{msgs.task_list_add}" action="#{TaskListBean.processActionAdd}" />
			 	</sakai:panel_edit>
			 </h:form>
  		</sakai:view_content>	
	</sakai:view_container>
</f:view>

Now we have to edit the TaskListBean.java file, adding the "taskText" member as well as the "processActionAdd" method.

TaskListBean.java changes:

From:

package org.sakaiproject.tool.tasklist.jsf;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.tool.tasklist.api.TaskListService;

public class TaskListBean {

	// use commons logger
	private final Log log = LogFactory.getLog(this.getClass());

	private TaskListService taskListService;
	private String currentUserDisplayName;
	
	// Constructor
	public TaskListBean() {
		log.debug("Constructor");
	}

	// IoC
	public void setTaskListService(TaskListService taskListService) {
		log.debug("setTaskListService");
		this.taskListService = taskListService;
		currentUserDisplayName = taskListService.getCurrentUserDisplayName(); 
	}

	public String getCurrentUserDisplayName() {
		return currentUserDisplayName;
	}

	public void setCurrentUserDisplayName(String currentUserDisplayName) {
		this.currentUserDisplayName = currentUserDisplayName;
	}
}

To:

package org.sakaiproject.tool.tasklist.jsf;

import java.util.Date;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.tool.tasklist.api.Task;
import org.sakaiproject.tool.tasklist.api.TaskListService;
import org.sakaiproject.tool.tasklist.impl.TaskImpl;

public class TaskListBean {

	// use commons logger
	private final Log log = LogFactory.getLog(this.getClass());

	private TaskListService taskListService;
	private String currentUserDisplayName;
	private String taskText;
	
	// Constructor
	public TaskListBean() {
		log.debug("Constructor");
	}

	// IoC
	public void setTaskListService(TaskListService taskListService) {
		log.debug("setTaskListService");
		this.taskListService = taskListService;
		currentUserDisplayName = taskListService.getCurrentUserDisplayName(); 
	}

	public String getCurrentUserDisplayName() {
		return currentUserDisplayName;
	}

	public void setCurrentUserDisplayName(String currentUserDisplayName) {
		this.currentUserDisplayName = currentUserDisplayName;
	}

	public String getTaskText() {
		log.debug("getTaskText");
		return taskText;
	}

	public void setTaskText(String taskText) {
		log.debug("setTaskText");
		this.taskText = taskText;
	}
	
	public String processActionAdd() {

		log.debug("processActionAdd");
		
		// Test for empty tasks and don't add them
		if(null != taskText && !taskText.equals("")) {
			Task task = new TaskImpl();
			task.setOwner(taskListService.getCurrentUserId());
			task.setTask(taskText);
			task.setCreationDate(new Date());
			task.setSiteId(taskListService.getSiteId());

			taskListService.addTask(task);

			// Reset task
			taskText = "";
		}
		return "newTask";
	}
}

The "TaskListBean.processActionAdd()" method returns a string witch, is used by the JSF framework to navigate to the same or to a different JSF page
- These navigation rules are setup in "tool/src/webapp/WEB-INF/faces-config.xml"
- Navigation rules:
  -  <navigation-rule> <from-view-id>/tasklist/TaskList.jsp</from-view-id> <navigation-case> <from-outcome>newTask</from-outcome> <to-view-id>/tasklist/TaskList.jsp</to-view-id> </navigation-case> </navigation-rule>
- The "processActionAdd()" method returns the "newTask" string, which matches the navigation case "<from-outcome>newTask</from-outcome>" in the above code sample
Screen Capture
- Unable to embed resource: TaskList-AddingTask of type application/octet-stream