I've been playing around storing tweets inside mongodb, each object looks like this:
{
"_id" : ObjectId("4c02c58de500fe1be1000005"),
"contributors" : null,
"text" : "Hello world",
"user" : {
"following" : null,
"followers_count" : 5,
"utc_offset" : null,
"location" : "",
"profile_text_color" : "000000",
"friends_count" : 11,
"profile_link_color" : "0000ff",
"verified" : false,
"protected" : false,
"url" : null,
"contributors_enabled" : false,
"created_at" : "Sun May 30 18:47:06 +0000 2010",
"geo_enabled" : false,
"profile_sidebar_border_color" : "87bc44",
"statuses_count" : 13,
"favourites_count" : 0,
"description" : "",
"notifications" : null,
"profile_background_tile" : false,
"lang" : "en",
"id" : 149978111,
"time_zone" : null,
"profile_sidebar_fill_color" : "e0ff92"
},
"geo" : null,
"coordinates" : null,
"in_reply_to_user_id" : 149183152,
"place" : null,
"created_at" : "Sun May 30 20:07:35 +0000 2010",
"source" : "web",
"in_reply_to_status_id" : {
"floatApprox" : 15061797850
},
"truncated" : false,
"favorited" : false,
"id" : {
"floatApprox" : 15061838001
}
How would I write a query which checks the created_at and finds all objects between 18:47 and 19:00? Do I need to update my documents so the dates are stored in a specific format?
This question is related to
mongodb
datetime
twitter
mongodb-query
db.collection.find({$and:
[
{date_time:{$gt:ISODate("2020-06-01T00:00:00.000Z")}},
{date_time:{$lt:ISODate("2020-06-30T00:00:00.000Z")}}
]
})
##In case you are making the query directly from your application ##
db.collection.find({$and:
[
{date_time:{$gt:"2020-06-01T00:00:00.000Z"}},
{date_time:{$lt:"2020-06-30T00:00:00.000Z"}}
]
})
You can also check this out. If you are using this method, then use the parse function to get values from Mongo Database:
db.getCollection('user').find({
createdOn: {
$gt: ISODate("2020-01-01T00:00:00.000Z"),
$lt: ISODate("2020-03-01T00:00:00.000Z")
}
})
mongoose.model('ModelName').aggregate([
{
$match: {
userId: mongoose.Types.ObjectId(userId)
}
},
{
$project: {
dataList: {
$filter: {
input: "$dataList",
as: "item",
cond: {
$and: [
{
$gte: [ "$$item.dateTime", new Date(`2017-01-01T00:00:00.000Z`) ]
},
{
$lte: [ "$$item.dateTime", new Date(`2019-12-01T00:00:00.000Z`) ]
},
]
}
}
}
}
}
])
MongoDB actually stores the millis of a date as an int(64), as prescribed by http://bsonspec.org/#/specification
However, it can get pretty confusing when you retrieve dates as the client driver will instantiate a date object with its own local timezone. The JavaScript driver in the mongo console will certainly do this.
So, if you care about your timezones, then make sure you know what it's supposed to be when you get it back. This shouldn't matter so much for the queries, as it will still equate to the same int(64), regardless of what timezone your date object is in (I hope). But I'd definitely make queries with actual date objects (not strings) and let the driver do its thing.
Use this code to find the record between two dates using $gte
and $lt
:
db.CollectionName.find({"whenCreated": {
'$gte': ISODate("2018-03-06T13:10:40.294Z"),
'$lt': ISODate("2018-05-06T13:10:40.294Z")
}});
Convert your dates to GMT timezone as you're stuffing them into Mongo. That way there's never a timezone issue. Then just do the math on the twitter/timezone field when you pull the data back out for presentation.
i tried in this model as per my requirements i need to store a date when ever a object is created later i want to retrieve all the records (documents ) between two dates in my html file i was using the following format mm/dd/yyyy
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script>
//jquery
$(document).ready(function(){
$("#select_date").click(function() {
$.ajax({
type: "post",
url: "xxx",
datatype: "html",
data: $("#period").serialize(),
success: function(data){
alert(data);
} ,//success
}); //event triggered
});//ajax
});//jquery
</script>
<title></title>
</head>
<body>
<form id="period" name='period'>
from <input id="selecteddate" name="selecteddate1" type="text"> to
<input id="select_date" type="button" value="selected">
</form>
</body>
</html>
in my py (python) file i converted it into "iso fomate" in following way
date_str1 = request.POST["SelectedDate1"]
SelectedDate1 = datetime.datetime.strptime(date_str1, '%m/%d/%Y').isoformat()
and saved in my dbmongo collection with "SelectedDate" as field in my collection
to retrieve data or documents between to 2 dates i used following query
db.collection.find( "SelectedDate": {'$gte': SelectedDate1,'$lt': SelectedDate2}})
pymongo
Finding objects between two dates in Python with pymongo
in collection posts
(based on the tutorial):
from_date = datetime.datetime(2010, 12, 31, 12, 30, 30, 125000)
to_date = datetime.datetime(2011, 12, 31, 12, 30, 30, 125000)
for post in posts.find({"date": {"$gte": from_date, "$lt": to_date}}):
print(post)
Where {"$gte": from_date, "$lt": to_date}
specifies the range in terms of datetime.datetime
types.
To clarify. What is important to know is that:
Here is a working snippet of code, where we do a little bit of date manipulation to ensure Mongo (here i am using mongoose module and want results for rows whose date attribute is less than (before) the date given as myDate param) can handle it correctly:
var inputDate = new Date(myDate.toISOString());
MyModel.find({
'date': { $lte: inputDate }
})
Using with Moment.js and Comparison Query Operators
var today = moment().startOf('day');
// "2018-12-05T00:00:00.00
var tomorrow = moment(today).endOf('day');
// ("2018-12-05T23:59:59.999
Example.find(
{
// find in today
created: { '$gte': today, '$lte': tomorrow }
// Or greater than 5 days
// created: { $lt: moment().add(-5, 'days') },
}), function (err, docs) { ... });
db.collection.find({"createdDate":{$gte:new ISODate("2017-04-14T23:59:59Z"),$lte:new ISODate("2017-04-15T23:59:59Z")}}).count();
Replace collection
with name of collection you want to execute query
use $gte and $lte to find between date data's in mongodb
var tomorrowDate = moment(new Date()).add(1, 'days').format("YYYY-MM-DD");
db.collection.find({"plannedDeliveryDate":{ $gte: new Date(tomorrowDate +"T00:00:00.000Z"),$lte: new Date(tomorrowDate + "T23:59:59.999Z")}})
Why not convert the string to an integer of the form YYYYMMDDHHMMSS? Each increment of time would then create a larger integer, and you can filter on the integers instead of worrying about converting to ISO time.
Source: Stackoverflow.com