First time question and newbie coder so treat me like I'm 5 years old.
Okay so as I'm learning, I'm horrible at trying to understand how to use documentation to fix my problems. I'm setting up a node application with mongodb as the backend. The starting point is it is something that will pull via api baseball game results into a database (date, teams, scores). The problem I've ran into is I want to take in dates. When I do it comes back with the generic 1970's date and I can't seem to get it to just keep the formatted date. The source of the data and the date will be given programmatically and so it won't be prone to human error so I don't need date validation. I just need it to recognize the date and keep it's format so I can find or filter on it. The data will only have the year/month/date and not the time.
I'm setting this up in a mongoose file to load into my mongodb DB.
I've looked at https://mongoosejs.com/docs/api.html#mongoose_Mongoose-Date information, but I'm either missing the point or not seeing what's in front of me. Any hints on how to accept date information?
const GameDayStats = mongoose.model('GameDayStats', {
Date: {
type: Date
},
Home: {
type: String
},
HomeScore: {
type: Number
},
Visitor: {
type: String
},
VisitorScore: {
type: Number
},
Final: {
type: Boolean
}
})
const game = new GameDayStats({
Date: 2021-08-04,
Home: 'Cardinals',
HomeScore: 8,
Visitor: 'Pirates',
VisitorScore: 2,
Final: true
})
game.save().then(() => {
console.log(game)
}).catch((error) => {
console.log('Game Stat Error!', error)
})
What the output looks like
{
_id: 602e774fbee0692662ea16fa,
Date: 1970-01-01T00:00:02.009Z, <----I want this in normal date form
Home: 'Cardinals',
HomeScore: 8,
Visitor: 'Pirates',
VisitorScore: 2,
Final: true,
__v: 0
}
I wants to filter the collection on the basis of subtract expiry date object with current date and which is less than equal to 10 days.
I am using below code but I am getting date difference in millisecond. I want in exact day difference.
db.metaobject.aggregate(
{ $unwind :'$certifications.expiry_date'},
{$project:{
_id:1,name:1,date-Difference: { $divide:[ {$subtract: [ "$certifications.expiry_date",new Date ]},86400000] }
}
},
{$match:{
dateDifference:{$lte:10}
}
}
)
If its to be used in node, you dont need to compute the difference :
Compute directly the date + 10 in node js then just to the $lte :
var date = new Date();
var date10 = new Date(date.getTime());
date10.setDate(date10.getDate() + 10);
db.metaobject.aggregate(
{ $unwind :'$certifications.expiry_date'},
{$match:{
dateDifference:{$lte: new Date(date10).toJSON()}
}
}
)
I want to create a scheduled job for patients in a hospital. The patients will be informed every month by their reg_date.
I'm using new Date().getDate() inside my scheduled Jobs to run at 8.00 AM in the morning to send SMS to my patients. Meanwhile, I had been using string format date to save reg_date in my mongoDB. Here is snippets of my mongoDB docs :
{
customer: "John",
reg_date: "2017-02-17T16:39:26.969Z"
}
I've ben surfing for solutions but it turns out nothing, so I decided to post myself. Here is what i am trying to do :
customer.find({"reg_date.getDate()" : new Date(2017, 03, 17).getDate()})
.then(function(data) {
for (var key in data.length) {
sendTheSMS(key[data]);
};
});
E.g: What I am doing is "I want to get every patient who register at 17th day of the month and send them a SMS".
Any help will be appreciated. :D
For this type of bit complex query you need to use aggregation method instead regular find method.
$project this will help you to project your fields, here we are creating a new temporary field day with only date of the reg_date. Then we query using the new field day and we get the result.
This temp field day will never added to your schema or model, it is just like temp view we are creating like in SQL.
Here i projected only customer and day but Please project all the fields necessary in the result.
function getCustomerList(day, callback){
customer.aggregate([
{
$project:{
"customer": "$customer", //repeat the same for all field you want in result
"reg_date": "$reg_date",
"day":{$dayOfMonth:"$reg_date"} //put day of month in 'day'
}
},
{
$match:{
"day": day //now match the day with the incoming day value
}
},
], function(err, result){
callback(err, result);
})
}
getCustomerList(17, function(err, result){ // call the function like this with date you want
// Process the err & result here
});
Result will be like this
[{
"_id" : ObjectId("571f2da8ca97eb10163e6e17"),
"customer" : "John",
"reg_date" : ISODate("2016-04-17T08:58:16.414Z"),
"day" : 17
},
{
"_id" : ObjectId("571f2da8ca97eb10163e6e17"),
"customer" : "Prasanth",
"reg_date" : ISODate("2016-04-17T08:58:16.414Z"),
"day" : 17
}]
Ignore the day field projected during your process...
With reg_date in string you can't query for day of month as it only works with ISODate. I suggest first you convert the string in reg_date in all your documents with a script.
Then the following query should work
customer.aggregate([
{
$project:{
"document": "$$ROOT", //to get the whole document
"day":{$dayOfMonth:"$date"} //put day of month in 'day'
}
},
{
$match:{
"day": 17 //match 17
}
},
], function(data) {
for (var key in data.length) {
sendTheSMS(key[data]);
};
})
Use greater than and less than
var previousDate =new Date(2017, 1, 16); //month starts with 0
var nextDate=new Date(2017, 1, 18);
customer.find({reg_date : { $gt:previousDate,$lt:nextDate}})
.then(function(data) {
for (var key in data.length) {
sendTheSMS(key[data]);
};
});
Since reg_date is stored as a string, and not a Date/ISODate, you're limited as to what kind of query you can run (so I concur with the comment in one of the other answers that you should consider converting them to proper ISODate).
Considering that you want to query a date string for entries with a particular day-of-month, you can use a regular expression query:
customer.find({ reg_date : /-17T/ })
Or, dynamically:
let today = new Date();
let dom = ('00' + today.getDate()).slice(-2); // zero-pad day of month
let re = new RegExp('-' + dom + 'T');
customer.find({ reg_date : re })
You should also read this regarding speed optimizations, but still, regex queries aren't very fast.
My application will allow user to create coupons.
Coupon will be valid in datefrom and dateto period.
The thing is that every coupon should be valid for selected days, not hours.
For example since Monday(2016-06-12) to Tuesday(2016-06-13), so two days.
How should I store dates on server side and then compare it using $gte clause in Mongoose?
Thank you :-)
{ "_id" : 1, "couponStartDate" : ISODate("2016-06-26T18:57:30.012Z") }
{ "_id" : 2, "couponStartDate" : ISODate("2016-06-26T18:57:35.012Z") }
var startDate = new Date(); // I am assuming this is gonna be provided
var validDate = startDate;
var parametricDayCount = 2;
validDate.setDate(validDate.getDate()+parametricDayCount);
CouponModel.find({couponStartDate: {$gte: startDate, $lte: validDate}}, function (err, docs) { ... });
You can store expiration time as UNIX timestamp. In your Mongoose model you can use expiration : { type: Number, required: true}
If you have user interface for creating coupons then you can configure your date picker to send time in UNIX timestamp.
Or If you are getting Date string then you can use var timestamp = new Date('Your_Date_String');
And for calculation of Days you can use Moment JS. Using this you can calculate start of the date using .startOf(); and end of date using .endOf();
Timestamp return from Moment JS can be used for Mongoose query like $gte : some_timestamp and $lte : some_timestamp
If you want to validate the coupon before it is persisted, you can create a max / min value for the date field:
See this sample from official mongoose documentation on DATE validation:
var s = new Schema({ dateto: { type: Date, max: Date('2014-01-01') })
var M = db.model('M', s)
var m = new M({ dateto: Date('2014-12-08') })
m.save(function (err) {
console.error(err) // validator error
m.dateto = Date('2013-12-31');
m.save() // success
})
Hint: use snake_case or camelCase for field names
Is it possible to query for a specific date ?
I found in the mongo Cookbook that we can do it for a range Querying for a Date Range
Like that :
db.posts.find({"created_on": {"$gte": start, "$lt": end}})
But is it possible for a specific date ?
This doesn't work :
db.posts.find({"created_on": new Date(2012, 7, 14) })
That should work if the dates you saved in the DB are without time (just year, month, day).
Chances are that the dates you saved were new Date(), which includes the time components. To query those times you need to create a date range that includes all moments in a day.
db.posts.find({ //query today up to tonight
created_on: {
$gte: new Date(2012, 7, 14),
$lt: new Date(2012, 7, 15)
}
})
...5+ years later, I strongly suggest using date-fns instead
import endOfDayfrom 'date-fns/endOfDay'
import startOfDay from 'date-fns/startOfDay'
MyModel.find({
createdAt: {
$gte: startOfDay(new Date()),
$lte: endOfDay(new Date())
}
})
For those of us using Moment.js
const moment = require('moment')
const today = moment().startOf('day')
MyModel.find({
createdAt: {
$gte: today.toDate(),
$lte: moment(today).endOf('day').toDate()
}
})
Important: all moments are mutable!
tomorrow = today.add(1, 'days') does not work since it also mutates today. Calling moment(today) solves that problem by implicitly cloning today.
Yeah, Date object complects date and time, so comparing it with just date value does not work.
You can simply use the $where operator to express more complex condition with Javascript boolean expression :)
db.posts.find({ '$where': 'this.created_on.toJSON().slice(0, 10) == "2012-07-14"' })
created_on is the datetime field and 2012-07-14 is the specified date.
Date should be exactly in YYYY-MM-DD format.
Note: Use $where sparingly, it has performance implications.
Have you tried:
db.posts.find({"created_on": {"$gte": new Date(2012, 7, 14), "$lt": new Date(2012, 7, 15)}})
The problem you're going to run into is that dates are stored as timestamps in Mongo. So, to match a date you're asking it to match a timestamp. In your case I think you're trying to match a day (ie. from 00:00 to 23:59 on a specific date). If your dates are stored without times then you should be okay. Otherwise, try specifying your date as a range of time on the same day (ie. start=00:00, end=23:59) if gte doesn't work.
similar question
You can use following approach for API method to get results from specific day:
# [HTTP GET]
getMeals: (req, res) ->
options = {}
# eg. api/v1/meals?date=Tue+Jan+13+2015+00%3A00%3A00+GMT%2B0100+(CET)
if req.query.date?
date = new Date req.query.date
date.setHours 0, 0, 0, 0
endDate = new Date date
endDate.setHours 23, 59, 59, 59
options.date =
$lt: endDate
$gte: date
Meal.find options, (err, meals) ->
if err or not meals
handleError err, meals, res
else
res.json createJSON meals, null, 'meals'
i do it in this method and works fine
public async getDatabaseorderbyDate(req: Request, res: Response) {
const { dateQuery }: any = req.query
const date = new Date(dateQuery)
console.log(date)
const today = date.toLocaleDateString(`fr-CA`).split('/').join('-')
console.log(today)
const creationDate = {
"creationDate": {
'$gte': `${today}T00:00:00.000Z`,
'$lt': `${today}T23:59:59.999Z`
}
};
`
``
Problem I came into was filtering date in backend, when setting date to 0 hour, 0 minute, 0 second, 0 milisecond in node server it does in ISO time so current date 0 hour, 0 minute, 0 second, 0 milisecond of client may vary i.e. as a result which may gives a day after or before due to conversion of ISO time to local timezone
I fixed those by sending local time from client to server
// If client is from Asia/Kathmandu timezone it will zero time in that zone.
// Note ISODate time with zero time is not equal to above mention
const timeFromClient = new Date(new Date().setHours(0,0,0,0)).getTime()
And used this time to filter the documents by using this query
const getDateQuery = (filterBy, time) => {
const today = new Date(time);
const tomorrow = new Date(today.getDate() + 1);
switch(filterBy) {
case 'past':
return {
$exists: true,
$lt: today,
};
case 'present':
return {
$exists: true,
$gte: today,
$lt: tomorrow
};
case 'future':
return {
$exists: true,
$gte: tomorrow
};
default:
return {
$exists: true
};
};
};
const users = await UserModel.find({
expiryDate: getDateQuery('past', timeFromClient)
})
This can be done in another approach using aggregate if we have timezoneId like Asia/Kathmandu
const getDateQuery = (filterBy) => {
const today = new Date();
const tomorrow = new Date(today.getDate() + 1);
switch(filterBy) {
case 'past':
return {
$exists: true,
$lt: today,
};
case 'present':
return {
$exists: true,
$gte: today,
$lt: tomorrow
};
case 'future':
return {
$exists: true,
$gte: tomorrow
};
default:
return {
$exists: true
};
};
};
await UserModel.aggregate([
{
$addFields: {
expiryDateClientDate: {
$dateToParts: {
date: '$expiryDate',
timezone: 'Asia/Kathmandu'
}
}
},
},
{
$addFields: {
expiryDateClientDate: {
$dateFromParts: {
year: '$expiryDateClientDate.year',
month: '$expiryDateClientDate.month',
day: '$expiryDateClientDate.day'
}
}
},
},
{
$match: {
expiryDateClientDate: getDateQuery('past')
}
}
])
We had an issue relating to duplicated data in our database, with a date field having multiple values where we were meant to have 1. I thought I'd add the way we resolved the issue for reference.
We have a collection called "data" with a numeric "value" field and a date "date" field. We had a process which we thought was idempotent, but ended up adding 2 x values per day on second run:
{ "_id" : "1", "type":"x", "value":1.23, date : ISODate("2013-05-21T08:00:00Z")}
{ "_id" : "2", "type":"x", "value":1.23, date : ISODate("2013-05-21T17:00:00Z")}
We only need 1 of the 2 records, so had to resort the javascript to clean up the db. Our initial approach was going to be to iterate through the results and remove any field with a time of between 6am and 11am (all duplicates were in the morning), but during implementation, made a change. Here's the script used to fix it:
var data = db.data.find({"type" : "x"})
var found = [];
while (data.hasNext()){
var datum = data.next();
var rdate = datum.date;
// instead of the next set of conditions, we could have just used rdate.getHour() and checked if it was in the morning, but this approach was slightly better...
if (typeof found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()] !== "undefined") {
if (datum.value != found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()]) {
print("DISCREPENCY!!!: " + datum._id + " for date " + datum.date);
}
else {
print("Removing " + datum._id);
db.data.remove({ "_id": datum._id});
}
}
else {
found[rdate.getDate()+"-"+rdate.getMonth() + "-" + rdate.getFullYear()] = datum.value;
}
}
and then ran it with mongo thedatabase fixer_script.js
Well a very simple solution to this is given below
const start = new Date(2020-04-01);
start.setHours(0, 0, 0, 0);
const end = new Date(2021-04-01);
end.setHours(23, 59, 59, 999);
queryFilter.created_at={
$gte:start,
$lte:end
}
YourModel.find(queryFilter)
So, the above code simply finds the records from the given start date to the given end date.
Seemed like none of the answers worked for me. Although someone mentioned a little hint, I managed to make it work with this code below.
let endDate = startingDate
endDate = endDate + 'T23:59:59';
Model.find({dateCreated: {$gte: startingDate, $lte: endDate}})
startingDate will be the specific date you want to query with.
I preferred this solution to avoid installing moment and just to pass the startingDate like "2021-04-01" in postman.