TopicController.java

package cn.jfinalbbs.topic;

import cn.jfinalbbs.collect.Collect;
import cn.jfinalbbs.common.BaseController;
import cn.jfinalbbs.common.Constants;
import cn.jfinalbbs.interceptor.UserInterceptor;
import cn.jfinalbbs.label.Label;
import cn.jfinalbbs.label.LabelTopicId;
import cn.jfinalbbs.reply.Reply;
import cn.jfinalbbs.user.User;
import cn.jfinalbbs.utils.AgentUtil;
import cn.jfinalbbs.utils.StrUtil;
import com.jfinal.aop.Before;
import com.jfinal.plugin.activerecord.tx.Tx;

import java.util.Date;
import java.util.List;

/**
 * Created by liuyang on 15/4/2.
 */
public class TopicController extends BaseController {

    public void index() {
        String id = getPara(0);
        Topic topic = Topic.me.findByIdWithUser(id);
        if (topic != null) {
            List<Reply> replies = Reply.me.findByTid(id);
            setAttr("topic", topic);
            //查询标签
            List<Label> labels = Label.me.findByTid(id);
            setAttr("labels", labels);
            setAttr("replies", replies);
            //查询收藏信息
            User user = getSessionAttr(Constants.USER_SESSION);
            if(user != null) {
                Collect collect = Collect.me.findByTidAndAuthorId(id, user.getStr("id"));
                setAttr("collect", collect);
            }
            //查询该作者下的其他话题
            List<Topic> otherTopics = Topic.me.findByAuthorIdNotTid(topic.getStr("author_id"), id, 5);
            setAttr("otherTopics", otherTopics);
            //查询无人回复的话题
            List<Topic> notReplyTopics = Topic.me.findNotReply(5);
            setAttr("notReplyTopics", notReplyTopics);
            //查询该话题下的回复是否有被采纳的
            Reply reply = Reply.me.findBestReplyByTid(id);
            setAttr("bestReply", reply == null ? 0 : 1);
            if(!AgentUtil.getAgent(getRequest()).equals(AgentUtil.WEB)) render("mobile/topic/index.html");
            else render("front/topic/index.html");
        } else {
            renderText("您查询的话题不存在");
        }
    }

    @Before(UserInterceptor.class)
    public void create(){
        if(!AgentUtil.getAgent(getRequest()).equals(AgentUtil.WEB)) render("mobile/topic/create.html");
        else render("front/topic/create.html");
    }

    @Before(UserInterceptor.class)
    public void edit(){
        String tid = getPara(0);
        Topic topic = Topic.me.findWithSection(tid);
        if(topic == null) {
            renderText(Constants.OP_ERROR_MESSAGE);
        } else {
            setAttr("topic", topic);
            //查询标签
            List<Label> labels = Label.me.findByTid(tid);
            setAttr("labels", labels);
            if(!AgentUtil.getAgent(getRequest()).equals(AgentUtil.WEB)) render("mobile/topic/edit.html");
            else render("front/topic/edit.html");
        }
    }

    @Before(UserInterceptor.class)
    public void update() {
        String tid = getPara("tid");
        Topic topic = Topic.me.findById(tid);
        if(topic == null) {
            renderText(Constants.OP_ERROR_MESSAGE);
        } else {
            String sid = getPara("sid");
            String title = getPara("title");
            String content = getPara("content");
            String original_url = getPara("original_url");
            String label = getPara("label");
            Date date = new Date();
            topic.set("title", StrUtil.transHtml(title))
                    .set("s_id", StrUtil.transHtml(sid))
                    .set("content", content)
                    .set("reposted", StrUtil.isBlank(original_url) ? 0 : 1)
                    .set("original_url", StrUtil.transHtml(original_url))
                    .set("modify_time", date)
                    .set("last_reply_time", date)
                    .update();
            //删除label_topic_id里所有该话题的标签关联数据
            LabelTopicId.me.deleteByTid(tid);
            //处理标签
            if(!StrUtil.isBlank(label)) {
                label = StrUtil.transHtml(label);
                String[] labels = label.split(",");
                for(String l : labels) {
                    Label label1 = Label.me.findByName(l);
                    if(label1 == null) {
                        label1 = new Label();
                        label1.set("name", l)
                                .set("in_time", date)
                                .set("topic_count", 0)
                                .save();
                    }
                    LabelTopicId.me.save(label1.getInt("id"), tid);
                }
            }
            redirect(Constants.getBaseUrl() + "/topic/" + tid);
        }
    }

    @Before({UserInterceptor.class, Tx.class})
    public void delete() {
        String tid = getPara(0);
        Topic topic = Topic.me.findById(tid);
        User user = getSessionAttr(Constants.USER_SESSION);
        if(topic == null || !topic.get("author_id").equals(user.get("id"))) {
            renderText(Constants.OP_ERROR_MESSAGE);
        } else {
            //删除关联的标签
            LabelTopicId.me.deleteByTid(tid);
            topic.delete();
            //删除回复
            Reply.me.deleteByTid(topic.getStr("id"));
            //删除收藏
            Collect.me.deleteByTid(topic.getStr("id"));
            redirect(Constants.getBaseUrl() + "/");
        }
    }

    @Before({UserInterceptor.class, Tx.class})
    public void save() {
        User sessionUser = getSessionAttr(Constants.USER_SESSION);
        User user = User.me.findById(sessionUser.get("id"));
        String sid = getPara("sid");
        String title = getPara("title");
        String content = getPara("content");
        String original_url = getPara("original_url");
        String label = getPara("label");
        Date date = new Date();
        Topic topic = new Topic();
        String tid = StrUtil.getUUID();
        topic.set("id", tid)
                .set("in_time", date)
                .set("last_reply_time", date)
                .set("s_id", StrUtil.transHtml(sid))
                .set("title", StrUtil.transHtml(title))
                .set("content", content)
                .set("view", 0)
                .set("author_id", user.get("id"))
                .set("reposted", StrUtil.isBlank(original_url) ? 0 : 1)
                .set("original_url", StrUtil.transHtml(original_url))
                .set("top", 0)
                .set("good", 0)
                .set("show_status", 1)
                .save();
        //处理标签
        if(!StrUtil.isBlank(label)) {
            label = StrUtil.transHtml(label);
            String[] labels = label.split(",");
            for(String l : labels) {
                Label label1 = Label.me.findByName(l);
                if(label1 == null) {
                    label1 = new Label();
                    label1.set("name", l)
                            .set("in_time", date)
                            .set("topic_count", 0)
                            .save();
                }
                LabelTopicId.me.save(label1.getInt("id"), tid);
            }
        }
        //将积分增加3分
        user.set("score", user.getInt("score") + 3).update();
        setSessionAttr(Constants.USER_SESSION, user);
        redirect(Constants.getBaseUrl() + "/topic/" + topic.get("id"));
    }

}