send maxMarks along with quiz/:id

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Launch Program",
+            "skipFiles": [
+                "<node_internals>/**"
+            ],
+            "program": "${workspaceFolder}/index.js"
+        }
+    ]
+}

framework/serializers/quizzes.js

@@ -15,7 +15,7 @@ module.exports = function (included = [], type, config) {
   }
 
   const options = {
-    attributes: ['title', 'description', 'image', 'duration', 'maxAttempts', 'startDate', 'endDate', 'user', 'questions'],
+    attributes: ['title', 'description', 'image', 'duration', 'maxAttempts', 'startDate', 'endDate', 'user', 'questions', 'maxMarks'],
     meta: {
       pagination: function (record) {
         return record.pagination

routes/api/quiz/controller.js

@@ -3,6 +3,7 @@ const DB = require('../../../models')
 const U = require('../../../utils')
 const R = require('ramda')
 const WhispererService = require('../../../services/whisperer')
+const Sequelize = require('sequelize') 
 
 class QuizController extends BaseController {
   constructor () {
@@ -148,6 +149,22 @@ class QuizController extends BaseController {
       })
       res.json(questions)
   }
+
+  async onAfterGetById(req, quiz) {
+    const [result] = await DB.quizzes.findAll({
+      logging: true,
+     includeIgnoreAttributes: false,
+      attributes: [ 'id' ,[Sequelize.fn('sum', Sequelize.col('questions.positiveScore')), 'total']],
+      include: {
+        model: DB.questions,
+      },
+     where: {
+        id: quiz.id
+      },
+      group: ['quizzes.id']
+    })
+    quiz.maxMarks = result ? +result.get('total') : 0
+  }
 }
 
 module.exports = QuizController