Handle date in the insertion, mongodb - node.js

My question is simple how to insert a date in my Schema that will be 1 year from the present date ?
const testSchema = new mongoose.Schema({
User_id: {
type: String,
required:true
},
inscription_date: {
type: Date,
default: Date.now
}
end_inscription_date: {
type: Date,
default: xxxxx // => Date.now + 1 year
}
});
For example:
Submit inscription 2019/07/24, the end date must be 2020/07/24.

You can create a function to calculate the one year later date and use that as your default value.
Try this :
var oneYear = 365 * 24 * 60 * 60 * 1000;
var oneYearLater = function() { return new Date(Date.now() + oneYear);};
Use function oneYearLater in your schema.
const testSchema = new mongoose.Schema({
User_id: {
type: String,
required:true
},
inscription_date: {
type: Date,
default: Date.now
}
end_inscription_date: {
type: Date,
default: oneYearLater// => Date.now + 1 year
}
});
Or simply try to add the milli seconds in Date.now.
end_inscription_date: {
type: Date,
default: Date.now() + 365*24*60*60*1000
}

Related

Mongoose - Set TTL on MongoDB Document

I am trying to set a TTL via mongoose when a document is created in MongoDB, but I'm not having any luck with any of my attempts. Latest version of mongoose is being used in my project and from what I can tell I've tried the most common answers here on SO and elsewhere online.
My Schema
const mongoose = require('mongoose');
const jobSchema = new mongoose.Schema(
{
positionTitle: {
type: String,
},
description: {
type: String,
}
});
const Jobs = mongoose.model('job', jobSchema);
module.exports = Jobs;
I have tried adding a createdAt with expires based on this question answer:
const jobSchema = new mongoose.Schema({
positionTitle: {
type: String,
},
description: {
type: String,
},
createdAt: { type: Date, expires: 3600 },
});
Along with this option that's also in the same question to have createdAt be created automatically via timestamps:
const jobSchema = new mongoose.Schema(
{
positionTitle: {
type: String,
},
description: {
type: String,
},
},
{ timestamps: true }
);
Trying variations of the following to set an index with timestamps defined:
jobSchema.index({ createdAt: 1 }, { expires: 86400 });
jobSchema.index({ createdAt: 1 }, { expires: '1 day' });
jobSchema.index({ createdAt: 1 }, { expireAfterSeconds: 3600 });
Regardless of which option I try, the document is removed after MongoDB's 60-second cycle when a createdAt field is set on the document. Would really love to know what I'm doing wrong.
After trying all the solutions in the thread you mentioned, none of them worked. In the end this code did the trick. It involves setting the expireAt field to the actual time that you want it deleted, which makes sense really.
const Schema = mongoose.Schema;
const YourSchema = new Schema({
expireAt: {
type: Date,
default: Date.now() + 10 * 60 * 1000 // expires in 10 minutes
},
});
This is the only thing that worked, all the other solutions I tried always deleted after 1min, no matter the amount of time I added.
I've been having issues with this as well. I found this thread here https://github.com/Automattic/mongoose/issues/2459 and it worked for me. Translated into your code would look like this.
const mongoose = require('mongoose');
const jobSchema = new mongoose.Schema(
{
positionTitle: {
type: String,
},
description: {
type: String,
},
expireAt: {
type: Date,
default: Date.now,
index: { expires: '5s' }
}
});
const Jobs = mongoose.model('job', jobSchema);
module.exports = Jobs;
On the link I added, it is the very last solution. I'm not exactly sure what this is doing but here is the mongo link of what it should be doing for anyone else with this issue. https://docs.mongodb.com/manual/tutorial/expire-data/. To change the amount of time that you need the document just change the expires. It accepts '#s' and '#d' for sure. Also if you want your document to be deleted at a specific time then you can do this.
expireAt: {
type: Date,
default: new Date('July 22, 2013 14:00:00'),
index: { expires: '0s' }
}
This will delete the document 0 seconds after the specified date.
Problem in TTL, Reason behind Document does not delete after some / few seconds, how to expire document in MongoDB / Mongoose using schema. Solution expireAfterSeconds / expires / index.
NOTE: - MongoDB's data expiration task runs once a minute, so an expired doc might persist up to a minute past its expiration. This feature requires MongoDB 2.2 or later. It's up to you to set createdAt to the current time when creating docs or add a default to do it for you as suggested here.
NOTE :- Below code is working fine and the document will delete after 5 minutes.
const verficationSchema = new mongoose.Schema({
email: {
type: String,
required: true,
unique: true,
lowercase: true,
trim: true,
validate(email) {
if (!validator.isEmail(email)) {
throw new Error("Email is not valid!");
}
},
},
otp: {
type: Number,
required : true
},
expireAt : {
type: Date,
default: Date,
expires : 300 // means 300 seconds = 5 minutes
}
});
NOTE :- Upper code is working fine, But document will delete after 1 minutes, because MongoDB check expiration procedure after every 1 minutes.
const verficationSchema = new mongoose.Schema({
email: {
type: String,
required: true,
unique: true,
lowercase: true,
trim: true,
validate(email) {
if (!validator.isEmail(email)) {
throw new Error("Email is not valid!");
}
},
},
otp: {
type: Number,
required : true
},
expireAt : {
type: Date,
default: Date,
expires : 8 // means 8 seconds
}
});

How to delete a particular document automatically in mongodb in nodejs

I want to delete a particular task document automatically. createdAt: {type: Date} => it will take future date and time, and duration:{type: String} => it will take time in hours. whenever the future time arrives from that time to next how much duration we insert, after completion of duration the task document will delete
const mongoose = require('mongoose')
const TaskSchema = new mongoose.Schema({
taskName: { type: String, required: true },
description: { type: String },
creator: { type: String },
duration: { type: String },
createdAt: {type: Date}
})
const Tasks = mongoose.model('Task', TaskSchema)
module.exports = Tasks```
**Please help how to approach this task**
try this
const TestSchema = new Schema({
expire_at: {type: Date, default: Date.now, expires: "your desired value"}
})
this is the solution you are looking for here

Node js and mongoose schema date.now code not working properly

I have created this schema for user registration:
let userSchema = new mongoose.Schema({
lname: String,
fname: String,
username: String,
email: String,
password: String,
registrationDate: {
type: Date,
default: Date.now()
},
referedBy: {
type: String,
default: ''
},
referalEnd: {
type: Date,
default: Date.now() + 5*365*24*60*60*1000
},
userRefererId: {
type: String,
default: uniqid()
}
});
As you can see, there is a Date.now function and uniqid function in the schema.
Those functions can be used approximately once every 5 minutes,
because if I create two users a few seconds apart, it generates the same uniqid and shows the same date.
Remove the () from Date.now() and just call Date.now.
I've run into this before, the schema is generated at deployment / start time and not regenerated on each new creation hence why the time is always the same. Its better to generate the date / time outside the new Model().save() call.
let userSchema = new mongoose.Schema({
lname: String,
fname:String,
username: String,
email: String,
password: String,
registrationDate: {
type: Date,
default: function(){return Date.now()}
},
referedBy: {
type:String,
default: ''
},
referalEnd: {
type: Date,
default: function(){ return Date.now() + 5*365*24*60*60*1000}
},
userRefererId: {
type:String,
default: uniqid()
}
});

Person Age Virtual Property in Mongoose

I would like to know if there is a simple way in Mongoose of getting a person's age from the associated birthdate in the schema.
// Define the User schema
const Schema = mongoose.Schema;
const UserSchema = new Schema({
id: { type: Number, required: true, unique: true },
first_name: { type: String, required: true, max: [15, 'Too long name'] },
last_name: { type: String, required: true, max: [15, 'Too long surname'] },
gender: { type: String, required: true, enum: ['M', 'F'] },
image: { data: Buffer, contentType: String }
birthdate: { type: Date, required: true }
}, {
collection: 'Users'
});
How to implement this?
// Virtual for user's age
UserSchema
.virtual('age')
.get(function() {
...
});
You can manipulate the date like bellow :
Short answer :
const birthdate = new Date(687882497000);
// replace birthdate by this.birthdate
const nbYearRounded = Math.floor((Date.now() - birthdate.getTime()) / (1000 * 3600 * 24 * 365));
console.log(nbYearRounded);
Exxplaination :
const date = new Date(687882497000);
const timeInMs = date.getTime();
const diffInMs = Date.now() - timeInMs;
const nbDay = diffInMs / 1000 / 3600 / 24;
const nbYear = nbDay / 365;
const nbYearRounded = Math.floor(nbYear);
console.log(date);
console.log(timeInMs);
console.log(diffInMs);
console.log(nbDay);
console.log(nbYear);
console.log(nbYearRounded);
Here is the documentation about VirtualType.prototype.get().
Given example :
var virtual = schema.virtual('fullname');
virtual.get(function () {
return this.name.first + ' ' + this.name.last;
});
This should work
UserSchema.virtual('age').get(function(){
return Math.floor((Date.now() - this.birthdate.getTime()) / (1000 * 3600 * 24 * 365));
});

How do I reset the expiration date of a document in Mongoose?

Based on the answer in this post I have created the following document schema, which sets every new document created to expire 24 hours after its creation :
var mongoose = require('./node_modules/mongoose');
mongoose.connect(mongodburi, {
server : {
socketOptions : {
keepAlive: 1
}
},
replset : {
socketOptions : {
keepAlive: 1
}
}
});
var sessionSchema = mongoose.Schema({
uid: {
type: String,
required: true,
unique: true
},
token: {
type: String,
required: false,
unique: true
},
createdAt: {
type: Date,
default: Date.now,
expires: 24*60*60
}
});
var Session = mongoose.model('Session', sessionSchema);
I want to be able to reset the expiration of a document for another 24 hours. Is this the way to do it (?) :
Session.update({uid: someUID}, {createdAt: Date.now}, null, function (err, numOfSessionsUpdated)
{
if (numOfSessionsUpdated > 0)
{
console.log('session expiration has been postponed for another 24 hours');
}
});
That's close, but you need to call Date.now instead of just passing it as that's a function:
Session.update({uid: someUID}, {createdAt: Date.now()}, null, function (err, numOfSessionsUpdated)
{
if (numOfSessionsUpdated > 0)
{
console.log('session expiration has been postponed for another 24 hours');
}
});

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