@Override
public Map<String, Object> defineModel(HttpServletRequest request) {
Map<String, Object> result = new HashMap<String, Object>();
int start = (page - 1) * resultsPerPage;
int end = start + resultsPerPage;
Collection<Topic> topics =
dao.find(
new Comparator<Topic>() {
public int compare(Topic o1, Topic o2) {
if (o2.getLastPostMilli().equals(o1.getLastPostMilli())) {
return 0;
} else if (o2.getLastPostMilli() > o1.getLastPostMilli()) {
return 1;
} else {
return -1;
}
}
},
start,
end);
result.put("topics", topics);
hasNext = (topics.size() == resultsPerPage);
result.put("member", request.getSession().getAttribute("user"));
result.put("controller", this);
return result;
}
@Override
public Page processRequest(HttpServletRequest request) {
Page result = this;
if ("new".equals(request.getParameter("action"))) {
Member member = (Member) request.getSession().getAttribute("user");
result = new TopicEdit(this, new Topic(member));
} else if ("previous".equals(request.getParameter("action"))) {
if (page > 1) {
page--;
}
} else if ("next".equals(request.getParameter("action"))) {
if (page < getNumberOfPages()) {
page++;
}
} else if (isAction("edit")) {
long id = Long.parseLong(request.getParameter("actionValue"));
result = new TopicEdit(this, dao.find(id));
} else if (isAction("remove")) {
long topicId = Long.parseLong(request.getParameter("actionValue"));
Topic topic = dao.find(topicId);
CommentDao commentDao = new CommentDao();
for (Comment comment : topic.getComments()) {
commentDao.remove(comment);
}
dao.remove(topicId);
}
return result;
}
public int getNumberOfResults() {
return dao.size();
}
public int getNumberOfPages() {
return ((dao.size() - 1) / resultsPerPage) + 1;
}