topicmodel.java

个人认为是最好的Java论坛源码

			t.setHasAttach(rs.getInt("attach") > 0);

			// First Post Time
			t.setFirstPostTime(df.format(rs.getTimestamp("topic_time")));
			
			// Last Post Time
			t.setLastPostTime(df.format(rs.getTimestamp("post_time")));
			t.setLastPostTimeInMillis(rs.getTimestamp("post_time"));

			// Created by
			User u = new User();
			u.setId(rs.getInt("posted_by_id"));
			u.setUsername(rs.getString("posted_by_username"));

			t.setPostedBy(u);
			
			// Last post by
			u = new User();
			u.setId(rs.getInt("last_post_by_id"));
			u.setUsername(rs.getString("last_post_by_username"));
			
			t.setLastPostBy(u);
			
			l.add(t);
		}
		
		return l;
	}

	/** 
	 * @see net.jforum.model.TopicModel#autoSetLastPostId(int)
	 */
	public int getMaxPostId(int topicId) throws Exception 
	{
		int id = -1;
		
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.getMaxPostId"));
		p.setInt(1, topicId);
		
		ResultSet rs = p.executeQuery();
		if (rs.next()) {
			id = rs.getInt("post_id");
		}
		
		rs.close();
		p.close();
		
		return id;
	}

	/** 
	 * @see net.jforum.model.TopicModel#getTotalPosts(int)
	 */
	public int getTotalPosts(int topicId) throws Exception 
	{
		int total = 0;
		
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.getTotalPosts"));
		p.setInt(1, topicId);
		
		ResultSet rs = p.executeQuery();
		if (rs.next()) {
			total = rs.getInt("total");
		}
		
		rs.close();
		p.close();
		
		return total;
	}

	/** 
	 * @see net.jforum.model.TopicModel#selectLastN(int)
	 */
	public List selectLastN(int count) throws Exception 
	{
		List topics = new ArrayList();
		
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.selectLastN"));
		p.setInt(1, count);
		
		ResultSet rs = p.executeQuery();
		
		// If you want more fields here, just put the code. At the time
		// this code was written, these were the only needed fields ;)
		while (rs.next()) {
			Topic t = new Topic();
			
			t.setTitle(rs.getString("topic_title"));
			t.setId(rs.getInt("topic_id"));
			t.setTime(rs.getTimestamp("topic_time"));
			t.setType(rs.getInt("topic_type"));
			
			topics.add(t);
		}
		
		rs.close();
		p.close();
		
		return topics;
	}
	
	/**
 	 * @see net.jforum.model.TopicModel#notifyUsers(int)
 	 */
	public List notifyUsers(Topic topic) throws Exception 
	{ 
		int posterId = SessionFacade.getUserSession().getUserId();
		int anonUser = SystemGlobals.getIntValue(ConfigKeys.ANONYMOUS_USER_ID);
		
		PreparedStatement stmt = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.notifyUsers"));		
		ResultSet rs = null;

		stmt.setInt(1, topic.getId());
		stmt.setInt(2, posterId); //don't notify the poster
		stmt.setInt(3, anonUser); //don't notify the anonimous user
				
		rs = stmt.executeQuery();
		
		List users = new ArrayList();
		while(rs.next()) {
			User user = new User();

			user.setId(rs.getInt("user_id"));
			user.setEmail(rs.getString("user_email"));
			user.setUsername(rs.getString("username"));
			user.setLang(rs.getString("user_lang"));
			
			users.add(user);
		}
		
		// Set read status to false
		stmt = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.markAllAsUnread"));
		stmt.setInt(1, topic.getId());
		stmt.setInt(2, posterId); //don't notify the poster
		stmt.setInt(3, anonUser); //don't notify the anonimous user
		
		stmt.executeUpdate();
			
		rs.close();
		stmt.close();
		
		return users;
	}
	
	/**
	 * @see net.jforum.model.TopicModel#subscribeUser(int, int)
	 */
	public void subscribeUser(int topicId, int userId) throws Exception 
	{
		PreparedStatement stmt = JForum.getConnection(). prepareStatement( SystemGlobals.getSql("TopicModel.subscribeUser"));
		
		try {
			stmt.setInt(1, topicId);
			stmt.setInt(2, userId);
			
			stmt.executeUpdate();
		} catch(SQLException e) {
			// Ignore duplicate key warnings
			if(e.getErrorCode() != DUPLICATE_KEY) {
				throw e;			
			}
		}
		finally {
			if(stmt != null) {
				stmt.close();
			}
		}		
	}
	
	/**
	 * @see net.jforum.model.TopicModel#isUserSubscribing(int, int)
	 */
	public boolean isUserSubscribed(int topicId, int userId) throws Exception 
	{
		PreparedStatement stmt = JForum.getConnection(). prepareStatement( SystemGlobals.getSql("TopicModel.isUserSubscribed"));
		ResultSet rs = null;
		
		stmt.setInt(1, topicId);
		stmt.setInt(2, userId);
		
		rs = stmt.executeQuery();
		boolean status = rs.next();
		
		rs.close();
		stmt.close();
				
		return status;
	}
	
	/** 
	 * @see net.jforum.model.TopicModel#removeSubscription(int, int)
	 */
	public void removeSubscription(int topicId, int userId) throws Exception 
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.removeSubscription"));
		p.setInt(1, topicId);
		p.setInt(2, userId);
		
		p.executeUpdate();
		p.close();
	}
	
	/** 
	 * @see net.jforum.model.TopicModel#removeSubscriptionByTopic(int)
	 */
	public void removeSubscriptionByTopic(int topicId) throws Exception 
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.removeSubscriptionByTopic"));
		p.setInt(1, topicId);
		
		p.executeUpdate();
		p.close();
	}

	/** 
	 * @see net.jforum.model.TopicModel#updateReadStatus(int, int, boolean)
	 */
	public void updateReadStatus(int topicId, int userId, boolean read) throws Exception 
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.updateReadStatus"));
		p.setInt(1, read ? 1 : 0);
		p.setInt(2, topicId);
		p.setInt(3, userId);
		
		p.executeUpdate();
		p.close();
	}
	
	/** 
	 * @see net.jforum.model.TopicModel#lockUnlock(int, int)
	 */
	public void lockUnlock(int[] topicId, int status) throws Exception 
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.lockUnlock"));
		p.setInt(1, status);
		
		for (int i = 0; i < topicId.length; i++) {
			p.setInt(2, topicId[i]);
			p.executeUpdate();
		}
		p.close();
	}
	
	/** 
	 * @see net.jforum.model.TopicModel#selectRecentTopics(int)
	 */	
	public List selectRecentTopics (int limit) throws Exception
	{
		List l = new ArrayList();

		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.selectRecentTopicsByLimit"));
		p.setInt(1, limit);
		
		ResultSet rs = p.executeQuery();
		
		l = this.fillTopicsData(rs);
		
		rs.close();
		p.close();
		return l;		
	}
	
	/** 
	 * @see net.jforum.model.TopicModel#setFirstPostId(int, int)
	 */
	public void setFirstPostId(int topicId, int postId) throws Exception 
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.setFirstPostId"));
		p.setInt(1, postId);
		p.setInt(2, topicId);
		p.executeUpdate();
		p.close();
	}

	/** 
	 * @see net.jforum.model.TopicModel#getMinPostId(int)
	 */
	public int getMinPostId(int topicId) throws Exception 
	{
		int id = -1;
		
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.getMinPostId"));
		p.setInt(1, topicId);
		
		ResultSet rs = p.executeQuery();
		if (rs.next()) {
			id = rs.getInt("post_id");
		}
		
		rs.close();
		p.close();
		
		return id;
	}
	
	/**
	 * @see net.jforum.model.TopicModel#setModerationStatus(int, boolean)
	 */
	public void setModerationStatus(int forumId, boolean status) throws Exception
	{
		PreparedStatement p = JForum.getConnection().prepareStatement(SystemGlobals.getSql("TopicModel.setModerationStatus"));
		p.setInt(1, status ? 1 : 0);
		p.setInt(2, forumId);
		p.executeUpdate();
		p.close();
	}
	
	/**
	 * @see net.jforum.model.TopicModel#selectTopicTitlesByIds(java.util.Collection)
	 */
	public List selectTopicTitlesByIds(Collection idList) throws Exception
	{
		List l = new ArrayList();
		String sql = SystemGlobals.getSql("TopicModel.selectTopicTitlesByIds");
		
		StringBuffer sb = new StringBuffer(idList.size() * 2);
		for (Iterator iter = idList.iterator(); iter.hasNext(); ) {
			sb.append(iter.next()).append(",");
		}
		
		int len = sb.length();
		sql = sql.replaceAll(":ids:", len > 0 ? sb.toString().substring(0, len - 1) : "0");
		PreparedStatement p = JForum.getConnection().prepareStatement(sql);
		
		ResultSet rs = p.executeQuery();
		while (rs.next()) {
			Map m = new HashMap();
			m.put("id", new Integer(rs.getInt("topic_id")));
			m.put("title", rs.getString("topic_title"));
			
			l.add(m);
		}
		
		rs.close();
		p.close();
		
		return l;
	}
}