Changing quiz start date to take input from Instructor

quiz/migrations/0004_auto_20201024_1020.py

+# Generated by Django 3.1.2 on 2020-10-24 10:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('quiz', '0003_auto_20201024_0927'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='quiz',
+            name='startTime',
+            field=models.DateTimeField(),
+        ),
+    ]

quiz/models.py

@@ -4,7 +4,7 @@ from django.db import models
 from django.db import models
 class quiz(models.Model):
     quizId=models.AutoField(default=0, primary_key=True) #primary key
-    startTime=models.DateTimeField(auto_now_add=True) 
+    startTime=models.DateTimeField() 
     length=models.FloatField(max_length=10)
     quizCode=models.CharField(max_length=100) ##quiz Code set by instructor
     quizDone=models.BooleanField(default=False)

quiz/static/js/quiz_attempt_page.js

@@ -4,6 +4,8 @@ var current_question = 0;
 var questions = document.getElementById('questions_area_wrapper').children;
 questions[current_question].style.display = 'block';
 var questions_len = parseInt(document.getElementById('question_count').value);
+var selected_color = '#f4fa9c';
+var deselected_color = '#ffffff';
  
     
 function next_question () {
@@ -34,14 +36,27 @@ function goto_question(x) {
     }
 }
 
-function set_option( question_id, option_id ,value) {
+function set_option( question_id, option_id ) {
     if(typeof question_id == "number" && typeof option_id == "number") {
         if(question_id>=0 && question_id<questions_len && option_id>=0 && option_id<4) {
             var ans = document.getElementById('q'+question_id);
-            ans.value = value;
-            var cbox = document.getElementById("lbl_"+question_id+"_"+option_id);
-            console.log("lbl_"+question_id+"_"+option_id);
-            cbox.style.backgroundColor = '#f4fa9c';
+            if (ans.value == "NA") {
+                ans.value = option_id;
+                var cbox = document.getElementById("lbl_"+question_id+"_"+option_id);
+                cbox.style.backgroundColor = selected_color;
+            } else {
+                if(option_id == ans.value) {
+                    var obox = document.getElementById("lbl_"+question_id+"_"+ans.value);
+                    obox.style.backgroundColor = deselected_color;
+                    ans.value = "NA";
+                } else {
+                    var obox = document.getElementById("lbl_"+question_id+"_"+ans.value);
+                    obox.style.backgroundColor = deselected_color;
+                    ans.value = option_id;
+                    var cbox = document.getElementById("lbl_"+question_id+"_"+option_id);
+                    cbox.style.backgroundColor = selected_color;
+                }
+            }
         }
     }
 }
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