From b1dfb985f791ae9d7eaa6b4c69662aaedb07cd82 Mon Sep 17 00:00:00 2001
From: Shrirang <deshmukhshrirang01@gmail.com>
Date: Fri, 11 Dec 2020 09:26:08 +0530
Subject: [PATCH 1/2] Contest Column Added

---
 controls/admin.js | 14 +++++++++++++-
 views/admin.ejs   | 12 ++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/controls/admin.js b/controls/admin.js
index 51a7e2fc..697bbc81 100644
--- a/controls/admin.js
+++ b/controls/admin.js
@@ -12,7 +12,19 @@ var moment = require("moment");
 helper.displayAllProblems = async (req, res, next) => {
     /**Finding all the problems sorted in descending order of the qID */
     Question.find({}).sort({ qID: -1 })
-        .then((data) => {
+        .then(async (data) => {
+            var contestsData= await contests.find({});
+            console.log(contestsData);
+            for(var i = 0; i < data.length; i++) {
+                
+                var contestsList = [];
+                for(var j = 0; j <contestsData.length; j++) {
+                    if (contestsData[j].problemsID.includes(String(data[i].qID)))
+                        contestsList.push(contestsData[j].code);
+                }
+                data[i].contests = contestsList;
+            }
+            
             res.render("admin", { data: data });
         })
         .catch((err) => {
diff --git a/views/admin.ejs b/views/admin.ejs
index 747dc26b..cdb7af83 100644
--- a/views/admin.ejs
+++ b/views/admin.ejs
@@ -38,6 +38,7 @@
                     <tr>
                         <th>Id</th>
                         <th>Name</th>
+                        <th>Contests</th>
                         <th>Visible publicly</th>
                         <th></th>
                     </tr>
@@ -51,6 +52,17 @@
                         <td>
                             <%= data[i].name %>
                         </td>
+                        <td>
+                            <% if (data[i].contests.length===0) { %>
+                                No Contests Found
+                            <% } %>
+                            
+                            <% for(var j = 0; j < data[i].contests.length; j++) { %>
+                                <a href="/contests/<%= data[i].contests[j]%>">
+                                     <%= data[i].contests[j] %>,  
+                                </a>
+                            <% } %>
+                        </td>
                         <td>
                             <%= data[i].isVisible %>
                         </td>

From a31c6deabbf77d7ed8673343caa1c7187c2f1be5 Mon Sep 17 00:00:00 2001
From: Shrirang <deshmukhshrirang01@gmail.com>
Date: Wed, 23 Dec 2020 10:28:31 +0530
Subject: [PATCH 2/2] Added Many-Many Relation

---
 controls/admin.js  | 39 +++++++++++++++++++++++----------------
 models/contests.js | 15 ++++++++-------
 models/problems.js |  1 +
 views/admin.ejs    |  4 ++--
 4 files changed, 34 insertions(+), 25 deletions(-)

diff --git a/controls/admin.js b/controls/admin.js
index 697bbc81..ed44ec8b 100644
--- a/controls/admin.js
+++ b/controls/admin.js
@@ -11,20 +11,8 @@ var moment = require("moment");
  */
 helper.displayAllProblems = async (req, res, next) => {
     /**Finding all the problems sorted in descending order of the qID */
-    Question.find({}).sort({ qID: -1 })
-        .then(async (data) => {
-            var contestsData= await contests.find({});
-            console.log(contestsData);
-            for(var i = 0; i < data.length; i++) {
-                
-                var contestsList = [];
-                for(var j = 0; j <contestsData.length; j++) {
-                    if (contestsData[j].problemsID.includes(String(data[i].qID)))
-                        contestsList.push(contestsData[j].code);
-                }
-                data[i].contests = contestsList;
-            }
-            
+    Question.find({}).populate('contests','code').sort({ qID: -1 })
+        .then(async (data) => {  
             res.render("admin", { data: data });
         })
         .catch((err) => {
@@ -148,7 +136,7 @@ helper.createContest = async (req, res, next) => {
         problemsID: req.body.problemsID.split(",").map(qID => qID.trim())
     };
     newContest.endDate = moment(newContest.date).add(newContest.duration,'m').toDate();
-    console.log(newContest)
+    console.log(newContest);
     var flag_contest = 0;
     await contests.findOne({"code": newContest.code})
         .then((data) => {
@@ -160,8 +148,27 @@ helper.createContest = async (req, res, next) => {
     
     if(flag_contest == 0){
         await contests.create(newContest)
-        .then((val) => {
+        .then(async (val) => {
+
             console.log(val);
+
+            for(var i = 0; i < val.problemsID.length; i++) {
+        
+                const refProb= await Question.findOne({qID:Number(val.problemsID[i])});
+                console.log(refProb);
+                if (!refProb) {
+                    console.log(`No problem found with ID ${val.problemsID[i]}`);
+                }
+                else {
+                    
+                    val.problems.push(refProb);
+                    refProb.contests.push(val);
+                    await refProb.save();
+                }
+                                
+            }
+            await val.save();     
+            
         })
         .catch((err) => {
             console.log(err);
diff --git a/models/contests.js b/models/contests.js
index 6d315d01..cc42e755 100644
--- a/models/contests.js
+++ b/models/contests.js
@@ -1,13 +1,14 @@
 var mongoose = require('mongoose');
 
 var contests = new mongoose.Schema({
-    code: String,
-    name: String,
-    date: Date,
-    endDate: Date,
-    duration: Number,
-    visible: Boolean,
-    problemsID: [String]
+  code: String,
+  name: String,
+  date: Date,
+  endDate: Date,
+  duration: Number,
+  visible: Boolean,
+  problemsID: [String],
+  problems:[{type: mongoose.Schema.ObjectId, ref: "Problems"}]
 });
 
 var Contests = mongoose.model('Contests', contests);
diff --git a/models/problems.js b/models/problems.js
index e93fda2f..97964772 100644
--- a/models/problems.js
+++ b/models/problems.js
@@ -18,6 +18,7 @@ var prob = new mongoose.Schema({
     memoryLimit: Number,
     tags: [String],
     editorial: String,
+    contests:[{type: mongoose.Schema.ObjectId, ref: "Contests"}]
 });
 var Problems = mongoose.model('Problems', prob);
 module.exports = Problems;
diff --git a/views/admin.ejs b/views/admin.ejs
index cdb7af83..8cf05847 100644
--- a/views/admin.ejs
+++ b/views/admin.ejs
@@ -58,8 +58,8 @@
                             <% } %>
                             
                             <% for(var j = 0; j < data[i].contests.length; j++) { %>
-                                <a href="/contests/<%= data[i].contests[j]%>">
-                                     <%= data[i].contests[j] %>,  
+                                <a href="/contests/<%= data[i].contests[j].code%>">
+                                     <%= data[i].contests[j].code %>,  
                                 </a>
                             <% } %>
                         </td>