Mongoose unique value per day - node.js

Question

Im trying to configure mongoose schema unique param. I need to allow write to DB no more than one unique author per one day period.
Schema.index( { author: 1, created: 1 } , { unique: true} ) not works, here I can't enter time period.
What better way to decide this case?
const Report = new Schema({
author: {
type: mongoose.Schema.Types.ObjectId,
ref: 'DiscordUserList',
required: true
},
reports: [{ reportNum: { type: Number }, text: { type: String }, date: { type: Date, default: Date.now } }],
questionsDone: [{ questionNum: { type: Number }, done: { type: Boolean }, date: { type: Date, default: Date.now } }],
created: {
type: Date,
default: Date.now
}
}, { strict: false })
Report.plugin(mongoosePaginate)
const reportListSchema = mongoose.model('ReportList', Report)
module.exports = reportListSchema

Answer 1

You could do an update operation with $setOnInsert and upsert option i.e if the update() with upsert: true had found a matching document, then MongoDB performs an update, applying the $set operation but ignoring the $setOnInsert operation. Thus your typical update would be as follows:
import moment from 'moment'
const start = moment().startOf('day').toDate() // set to 12:00 am today
const end = moment().endOf('day').toDate() // set to 23:59 pm today
ReportList.findOneAndUpdate(
{
'author': author_id,
'created': { '$gte': start, '$lte': end }
},
{
'$set': { 'author': author_id },
'$setOnInsert': { 'created': moment().toDate() }
},
{ 'upsert': true, 'new': true },
(err, report) => {
console.log(report)
}
)
or using the setDefaultsOnInsert option which when this and upsert are true, mongoose will apply the defaults specified in the model's schema if a new document is created:
ReportList.findOneAndUpdate(
{
'author': author_id,
'created': { '$gte': start, '$lte': end }
},
{ '$set': { 'author': author_id } },
{
'upsert': true,
'new': true,
'setDefaultsOnInsert': true
},
(err, report) => {
console.log(report)
}
)