AllCoursesPanel.java

/**
 *     Copyright SocialSite (C) 2009
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.socialsite.course;

import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.navigation.paging.PagingNavigator;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.DataView;
import org.apache.wicket.markup.repeater.data.IDataProvider;
import org.apache.wicket.model.Model;

import com.socialsite.BasePanel;
import com.socialsite.dataprovider.StaffCourseDataProvider;
import com.socialsite.dataprovider.UniversityCourseDataProvider;
import com.socialsite.dataprovider.UserCourseDataProvider;
import com.socialsite.image.ImagePanel;
import com.socialsite.image.ImageType;
import com.socialsite.persistence.Admin;
import com.socialsite.persistence.Course;
import com.socialsite.persistence.Staff;
import com.socialsite.persistence.Student;
import com.socialsite.persistence.User;

/**
 * @author Ananth
 */
public class AllCoursesPanel extends BasePanel
{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public AllCoursesPanel(String id)
	{
		super(id);

		User user = getUser();
		IDataProvider<Course> dataProvider = null;
		if (user instanceof Student)
		{
			dataProvider = new UserCourseDataProvider(user.getId());
		}
		else if (user instanceof Staff)
		{

			dataProvider = new StaffCourseDataProvider(user.getId());
		}
		else if (user instanceof Admin)
		{
			dataProvider = new UniversityCourseDataProvider(((Admin)user).getUniversity().getId());
		}

		final DataView<Course> courseList = new DataView<Course>("courses", dataProvider, 12)
		{
			/**
			 * 
			 */
			private static final long serialVersionUID = 1L;

			@Override
			protected void populateItem(final Item<Course> item)
			{
				Course course = item.getModelObject();
				CourseLink courseLink;
				item.add(courseLink = new CourseLink("courselink", new Model<Course>(course)));
				courseLink.add(new Label("coursename", course.getName()));

				CourseLink courseImageLink;
				item.add(courseImageLink = new CourseLink("courseimagelink", new Model<Course>(
						course)));
				courseImageLink.add(new ImagePanel("image", course.getId(), ImageType.COURSE,
						course.getLastModified(), false, false));

				item.add(new Label("students", course.getStudents().size() + ""));
				item.add(new Label("questions", course.getQuestions().size() + ""));

			}

		};

		add(new PagingNavigator("paging", courseList));
		add(courseList);
	}
}