com.socialsite.course.question.AddQuestionPanel.java Source code

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Here is the source code for com.socialsite.course.question.AddQuestionPanel.java

Source

/**
 *     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.question;

import java.util.Date;
import java.util.HashSet;

import org.apache.wicket.MarkupContainer;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.RequiredTextField;
import org.apache.wicket.markup.html.panel.FeedbackPanel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.spring.injection.annot.SpringBean;

import com.socialsite.BasePanel;
import com.socialsite.dao.MessageDao;
import com.socialsite.dao.QuestionDao;
import com.socialsite.persistence.Course;
import com.socialsite.persistence.Message;
import com.socialsite.persistence.Question;
import com.socialsite.persistence.QuestionInfoMsg;
import com.socialsite.persistence.User;
import com.socialsite.util.wmd.RichEditor;

/**
 * 
 * 
 * @author Ananth
 */
public class AddQuestionPanel extends BasePanel {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    @SpringBean(name = "questionDao")
    private QuestionDao questionDao;

    @SpringBean(name = "messageDao")
    private MessageDao<Message> messageDao;

    /** feedback panel */
    FeedbackPanel feedback;
    /** model for question heading */
    private String heading;
    /** model for question text */
    private String text;

    public AddQuestionPanel(final String id, final IModel<Course> model, final MarkupContainer dependent) {
        super(id, model);
        final Form<Course> form = new Form<Course>("form", model);
        add(form);
        form.add(new RequiredTextField<String>("heading", new PropertyModel<String>(this, "heading")));
        form.add(new RichEditor("richeditor", new PropertyModel<String>(this, "text")));
        final AjaxSubmitLink addQuestionLink = new AjaxSubmitLink("addquestion", form) {

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

            @Override
            protected void onError(final AjaxRequestTarget target, final Form<?> form) {
                super.onError(target, form);
                // show feedback messages
                target.addComponent(feedback);
            }

            @Override
            protected void onSubmit(final AjaxRequestTarget target, final Form<?> form) {
                // save the question
                final Course course = (Course) form.getModelObject();
                // create another question model
                final Question question = new Question(heading, text);
                question.setCourse(course);
                question.setUser(getSessionUser());
                questionDao.save(question);

                QuestionInfoMsg infoMsg = new QuestionInfoMsg();
                infoMsg.setQuestion(question);
                infoMsg.setTime(new Date());
                infoMsg.setUsers(new HashSet<User>(course.getStudents()));
                messageDao.save(infoMsg);

                // update the related contents
                target.addComponent(dependent);
                target.addComponent(feedback);
                // fire the update event so the editor can intialize
                firePostAjaxUpdateEvent(target);
                // slideup the reply panel
                final String id = AddQuestionPanel.this.getMarkupId();
                target.appendJavascript(" $('#" + id + " .slideText').trigger('click'); ");
            }
        };

        form.add(addQuestionLink);
        form.setDefaultButton(addQuestionLink);
        add(feedback = new FeedbackPanel("feedback"));
        feedback.setOutputMarkupId(true);
        setOutputMarkupId(true);
    }
}