From fea029f2841221127f172deeb1f7557d717cb2dc Mon Sep 17 00:00:00 2001
From: Menci <HuangHaoRui301@Gmail.com>
Date: Sat, 3 Dec 2016 17:23:21 +0800
Subject: [PATCH] Fix contest bugs

---
 models/contest.js  | 2 ++
 modules/contest.js | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/models/contest.js b/models/contest.js
index f9b96a7..d60fe0f 100644
--- a/models/contest.js
+++ b/models/contest.js
@@ -69,6 +69,7 @@ class Contest extends Model {
   static async create(val) {
     return Contest.fromRecord(Contest.model.build(Object.assign({
       title: '',
+      problems: '',
       start_time: 0,
       end_time: 0,
       holder: 0,
@@ -90,6 +91,7 @@ class Contest extends Model {
   }
 
   async getProblems() {
+    if (this.problems === '') return [];
     return this.problems.split('|').map(x => parseInt(x));
   }
 
diff --git a/modules/contest.js b/modules/contest.js
index 92f817f..d54a689 100644
--- a/modules/contest.js
+++ b/modules/contest.js
@@ -53,9 +53,11 @@ app.get('/contest/:id/edit', async (req, res) => {
     let contest = await Contest.fromID(contest_id);
     if (!contest) {
       contest = await Contest.create();
+      contest.id = 0;
     }
 
-    let problems = await contest.problems.split('|').mapAsync(async id => await Problem.fromID(id));
+    let problems = [];
+    if (contest.problems) problems = await contest.problems.split('|').mapAsync(async id => await Problem.fromID(id));
 
     res.render('edit_contest', {
       contest: contest,
@@ -164,7 +166,7 @@ app.get('/contest/:id/ranklist', async (req, res) => {
     if (!contest) throw 'No such contest.';
 
     if (!await contest.isAllowedSeeResultBy(res.locals.user)) throw 'Permission denied';
-    
+
     await contest.loadRelationships();
 
     let players_id = [];