Add problem discussion list.

models/article.js

@@ -23,6 +23,7 @@ let Sequelize = require('sequelize');
 let db = syzoj.db;
 
 let User = syzoj.model('user');
+const Problem = syzoj.model('problem');
 
 let model = db.define('article', {
   id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },

modules/discussion.js

@@ -24,18 +24,34 @@ let Article = syzoj.model('article');
 let ArticleComment = syzoj.model('article-comment');
 let User = syzoj.model('user');
 
-app.get('/discussion', async (req, res) => {
+app.get('/discussion/:type?', async (req, res) => {
   try {
-    let where = { problem_id: null };
+    if (!['global', 'problems'].includes(req.params.type)) {
+      res.redirect(syzoj.utils.makeUrl(['discussion', 'global']));
+    }
+    const in_problems = req.params.type === 'problems';
+
+    let where;
+    if (in_problems) {
+      where = { problem_id: { $not: null } };
+    } else {
+      where = { problem_id: { $eq: null } };
+    }
     let paginate = syzoj.utils.paginate(await Article.count(where), req.query.page, syzoj.config.page.discussion);
     let articles = await Article.query(paginate, where, [['public_time', 'desc']]);
 
-    for (let article of articles) await article.loadRelationships();
+    for (let article of articles) {
+      await article.loadRelationships();
+      if (in_problems) {
+        article.problem = await Problem.fromID(article.problem_id);
+      }
+    }
 
     res.render('discussion', {
       articles: articles,
       paginate: paginate,
-      problem: null
+      problem: null,
+      in_problems: in_problems
     });
   } catch (e) {
     syzoj.log(e);
@@ -45,7 +61,7 @@ app.get('/discussion', async (req, res) => {
   }
 });
 
-app.get('/problem/:pid/discussion', async (req, res) => {
+app.get('/discussion/problem/:pid', async (req, res) => {
   try {
     let pid = parseInt(req.params.pid);
     let problem = await Problem.fromID(pid);
@@ -63,7 +79,8 @@ app.get('/problem/:pid/discussion', async (req, res) => {
     res.render('discussion', {
       articles: articles,
       paginate: paginate,
-      problem: problem
+      problem: problem,
+      in_problems: false
     });
   } catch (e) {
     syzoj.log(e);
@@ -201,7 +218,7 @@ app.post('/article/:id/delete', async (req, res) => {
 
     await article.destroy();
 
-    res.redirect(syzoj.utils.makeUrl(['discussion']));
+    res.redirect(syzoj.utils.makeUrl(['discussion', 'global']));
   } catch (e) {
     syzoj.log(e);
     res.render('error', {

views/article.ejs

@@ -10,11 +10,11 @@
     <div class="section">讨论</div>
     <i class="right angle icon divider"></i>
     <% if (problem) { %>
-      <div class="section">题目</div>
+      <div class="section"><a href="<%= syzoj.utils.makeUrl(['discussion', 'problems']) %>">题目</a></div>
       <i class="right angle icon divider"></i>
-      <a href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'discussion']) %>" class="active section"><%= problem.title %></a>
+      <a href="<%= syzoj.utils.makeUrl(['discussion', 'problem', problem.id]) %>" class="active section"><%= problem.title %></a>
     <% } else { %>
-      <a href="<%= syzoj.utils.makeUrl(['discussion']) %>" class="section">全局板块</a>
+      <a href="<%= syzoj.utils.makeUrl(['discussion', 'global']) %>" class="section">全局板块</a>
     <% } %>
   </div>
   <h1><%= article.title %></h1>

views/discussion.ejs

@@ -8,33 +8,50 @@
           <div class="section">讨论</div>
           <i class="right angle icon divider"></i>
           <% if (problem) { %>
-            <div class="section">题目</div>
+            <div class="section"><a href="<%= syzoj.utils.makeUrl(['discussion', 'problems']) %>">题目</a></div>
             <i class="right angle icon divider"></i>
             <div class="active section"><%= problem.title %></div>
+          <% } else if (in_problems) { %>
+            <div class="section">题目</div>
           <% } else { %>
             <div class="section">全局板块</div>
           <% } %>
         </div>
       </div>
       <div class="six wide right aligned column">
-        <% if (problem) { %>
+        <% if(in_problems) { %>
-          <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['problem', problem.id]) %>" class="ui labeled icon mini blue button">
+          <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['discussion', 'global']) %>" class="ui labeled icon mini blue button">
-            <i class="arrow left icon"></i>
+            <i class="world icon"></i>
-            返回题目
+            全局板块
+          </a>
+        <% } else { %>
+          <% if (problem) { %>
+            <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['problem', problem.id]) %>" class="ui labeled icon mini blue button">
+              <i class="arrow left icon"></i>
+              返回题目
+            </a>
+          <% } else { %>
+            <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['discussion', 'problems']) %>" class="ui labeled icon mini blue button">
+              <i class="file outline icon"></i>
+              题目板块
+            </a>
+          <% } %>
+          <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['article', 0, 'edit'], problem ? { problem_id: problem.id } : null) %>" class="ui labeled icon mini button">
+              <i class="write icon"></i>
+              发帖
           </a>
         <% } %>
-        <a style="margin-left: 10px; " href="<%= syzoj.utils.makeUrl(['article', 0, 'edit'], problem ? { problem_id: problem.id } : null) %>" class="ui labeled icon mini button">
-            <i class="write icon"></i>
-            发帖
-        </a>
       </div>
     </div>
   </div>
   <table class="ui very basic center aligned table">
     <thead>
       <tr>
-        <th class="left aligned" style="width: 65%; ">标题</th>
+        <th class="left aligned" style="width: 50%; ">标题</th>
-        <th style="width: 15%; ">作者</th>
+        <% if (in_problems) { %>
+          <th style="width: 20%; ">所属题目</th>
+        <% } %>
+        <th style="width: 10%; ">作者</th>
         <th style="width: 20%; ">发表时间</th>
       </tr>
     </thead>
@@ -42,6 +59,9 @@
     <% for (let article of articles) { %>
         <tr>
             <td class="left aligned"><a href="<%= syzoj.utils.makeUrl(['article', article.id]) %>"><%= article.title %></a></td>
+            <% if (in_problems) { %>
+              <td><a href="<%= syzoj.utils.makeUrl(['discussion', 'problem', article.problem_id]) %>"><%= article.problem.title %></a></td>
+            <% } %>
             <td><a href="<%= syzoj.utils.makeUrl(['user', article.user_id]) %>"><%= article.user.username %></a><% if (article.user.nameplate) { %><%- article.user.nameplate %><% } %></td>
             <td><%= syzoj.utils.formatDate(article.public_time) %></td>
         </tr>

views/header.ejs

@@ -22,7 +22,7 @@
             <a class="item<% if (active.startsWith('contest')) { %> active<% } %>" href="/contests"><i class="calendar icon"></i> 比赛</a>
             <a class="item<% if (active.startsWith('submission')) { %> active<% } %>" href="/submissions"><i class="tasks icon"></i> 评测</a>
             <a class="item<% if (active.startsWith('ranklist')) { %> active<% } %>" href="/ranklist"><i class="signal icon"></i> 排名</a>
-            <a class="item<% if (active.startsWith('discussion') || active.startsWith('article')) { %> active<% } %>" href="/discussion"><i class="comments icon"></i> 讨论</a>
+            <a class="item<% if (active.startsWith('discussion') || active.startsWith('article')) { %> active<% } %>" href="/discussion/global"><i class="comments icon"></i> 讨论</a>
             <a class="item<% if (active.startsWith('help')) { %> active<% } %>" href="/help"><i class="help circle icon"></i> 帮助</a>
             <% if (typeof contest !== 'undefined' && contest && contest.id) { %>
               <a id="back_to_contest" class="item" href="<%= syzoj.utils.makeUrl(['contest', contest.id]) %>"><i class="arrow left icon"></i> 返回比赛</a>

views/problem.ejs

@@ -96,7 +96,7 @@ div[class*=ace_br] {
           <% } %>
           <a class="small ui positive button" href="<%= syzoj.utils.makeUrl(['submissions'], { problem_id: problem.id }) %>">提交记录</a>
           <a class="small ui orange button" href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'statistics', problem.type === 'submit-answer' ? 'min' : 'fastest']) %>">统计</a>
-          <a class="small ui brown button" href="<%= syzoj.utils.makeUrl(['problem', problem.id, 'discussion']) %>" style="position: relative; ">
+          <a class="small ui brown button" href="<%= syzoj.utils.makeUrl(['discussion', 'problem', problem.id]) %>" style="position: relative; ">
             讨论
             <% if (discussionCount) { %>
               <div class="floating ui red tiny circular label"><%= discussionCount %></div>