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quizzes.js
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const mongoose = require('mongoose');
const questionAttemptSchema = new mongoose.Schema({
user: {
type: String,
required: true
},
answer: {
type: String,
required: true
},
score: {
type: Number,
required: true
},
time: {
type: Number,
required: true
},
isCorrect: {
type: Boolean,
required: true
}
});
const questionSchema = new mongoose.Schema({
title: {
type: String,
required: true
},
answer: {
type: String,
required: true
},
choices: {
type: [String],
// validate: v => v == null || v.length > 0 // at least 1 false choice ?
},
attempts: [questionAttemptSchema]
});
const quizSchema = new mongoose.Schema({
name: {
type: String,
required: true
},
createdOn: {
type: Date,
'default': Date.now
},
timesAnswered: {
type: Number,
'default': 0
},
genres: [String],
rating: {
type: Number,
required: false,
min: 0,
max: 5
},
author: {
type: String,
required: false
},
questions: {
type: [questionSchema],
required: true,
validate: [(questions) => {
return questions.every(q => {
const uniqueFields = new Set([...q.choices, q.answer]);
return uniqueFields.size == q.choices.length + 1;
})
}, "question [...choices, answer] should be unique for all questions"]
},
description: {
type: String,
required: true
}
});
mongoose.model('quiz', quizSchema);