public static Topic createFromDB(int topicID) {
Topic topic = null;
Transaction tx = null;
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
try {
tx = session.getTransaction();
Query q =
session.createQuery(
"select t, count(p.postID) "
+ " from Topic as t, Post as p "
+ " where t.topicID = p.topicID "
+ " and t.topicID = :topicid "
+ " group by t.topicID");
q.setInteger("topicid", topicID);
for (Iterator<Object[]> it = q.iterate(); it.hasNext(); ) {
Object[] el = it.next();
topic = (Topic) el[0];
Long replies = (Long) el[1];
topic.setReplies(replies == null ? 0 : replies.intValue());
}
} catch (HibernateException e) {
e.printStackTrace();
if (tx != null && tx.isActive()) tx.rollback();
}
return topic;
}
public boolean equals(Object other) {
if ((this == other)) return true;
if ((other == null)) return false;
if (!(other instanceof Topic)) return false;
Topic t = (Topic) other;
return (t.getTopicID() == this.getTopicID());
}
public static boolean needsHighlight(Topic t, User u) {
boolean highlight = true;
Transaction tx = null;
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
try {
tx = session.getTransaction();
Query q =
session.createQuery(
"select ls "
+ " from LastseenTopic as ls "
+ " where ls.userID = :userID "
+ " and ls.topicID = :topicID "
+ " and ls.lasttime > :lastedit");
q.setInteger("userID", u.getId());
q.setInteger("topicID", t.getTopicID());
q.setDate("lastedit", t.getLastedit());
List<LastseenTopic> lsts = q.list();
if (lsts.size() > 0) {
highlight = lsts.get(0).getLasttime().before(t.getLastedit());
}
} catch (HibernateException e) {
e.printStackTrace();
if (tx != null && tx.isActive()) tx.rollback();
}
return highlight;
}
public static List<Topic> getTopics(int location, int offset) {
List<Topic> topics = new Vector<Topic>();
Transaction tx = null;
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
try {
tx = session.getTransaction();
Query q =
session.createQuery(
"select u, t, count(p.postID) "
+ " from Topic as t, User as u, Post as p "
+ " where t.starter = u.id "
+ " and t.location = :location "
+ " and p.topicID = t.topicID "
+ " group by t.topicID "
+ " order by t.sticky desc, t.lastedit desc");
q.setMaxResults(Topic.MAXTOPICS);
if (offset > 0) {
q.setFirstResult(offset);
}
q.setInteger("location", location);
for (Iterator<Object[]> it = q.iterate(); it.hasNext(); ) {
Object[] el = it.next();
User u = (User) el[0];
Topic topic = (Topic) el[1];
Long replies = (Long) el[2];
topic.setUser(u);
topic.setReplies(replies == null ? 0 : replies.intValue());
topics.add(topic);
}
} catch (HibernateException e) {
e.printStackTrace();
if (tx != null && tx.isActive()) tx.rollback();
}
return topics;
}