I have a string field which consists of date, I am trying to run following command mentioned in Update string to Date object in mongodb
db.getCollection('rft').updateMany(
{},[{ "$set": { "createdate": { "$toDate": "$create_date" } }}]
);
Getting an error:
Error: Failed to execute script.
Error: the update operation document must contain atomic operators
Details:
DBCollection.prototype.updateMany#src/mongo/shell/crud_api.js:625:1
#(shell):1:1
Can someone please help in updating the records to get new field with date time.
Your query seems to work as expected , check playgroud unless something different is expected ...
Related
Well, I have used MongoDB in a while but I don't know how to handle this situation.
The scenario is: I have data inserted in MongoDB. I have exported the data in JSON format, and it is something like:
[
{
"_id": { "$oid": "60ff324f41c4d5b96054390d" },
"field": {
"due_date": { "$date": "2021-11-03T00:09:18.271Z" }
}
}
]
You can see that :
_id is { "$oid": "60ff324f41c4d5b96054390d" } and
date is { "$date": "2021-11-03T00:09:18.271Z" }.
So, the problem is trying to insert in another DB using Mongoose. I want to test some funcionality isolated so I wan't these values in other environment, so I have used insertMany() with the JSON previously exported.
(Maybe there is a more elegant way to import a JSON file but is only for testing purposes)
await model.insertMany(JSON.parse(fs.readFileSync('./data.json').toString()))
But the problem is here: It throws an error because my schema says that _id is an ObjectId and due_date is a Date object but they are actually read as objects: {$oid: ""} and {$date: ""}
ValidationError: model validation failed: _id: Cast to ObjectId failed for value "{ '$oid': '60ff324f41c4d5b96054390d' }" (type Object) at path "_id", field.due_date: Cast to date failed for value "{ '$date': '2021-11-03T00:09:18.271Z' }" (type Object) at path "field.due_date"
So the question is: Is there any way to cast the $oid and $date objects using mongoose while inserting?
Also, I have managed to insert the values using a very ugly script iterating over each value and checking if the object is $oid or $date and modifying the values... but it works.
So the question is not: "Is there a workaround to do this?" but "Is there a way to do it directly with mongoose functions as insertMany and casted automatically?"
Thanks.
The {"$oid": ...} and {"$date":...} constructs are MongoDB extended JSON notation, since JSON does not have any type for Date or ObjectId.
In order to insert those values, you will need to use a JSON parser that knows about this extended format.
One possibility is the json_util that is included with bson.
Or you can use mongoimport to read the JSON file and do the inserts for you.
I have this query which isn't working and I've tried looking for material to better understand the syntax behind it, but I'm not having much luck. If someone could point out some resources for me to look into, I would appreciate it. Specifically, I'm having trouble with ISODate(:#{#start}) and what roles the :# or {#parameter} play in this query.
Also, if you happen to know how to fix this up. Please share!
Edit The dates in the db should be engulfed by the date parameters supplied. I originally had 'foo': :#{#parameter} which worked for looking up values, but here I've had to wrap the string with ISODate() in order to convert it for comparison.
#Query("
{ 'user.id': :#{#id} },
{ 'date.events.start': { $gte: ISODate(:#{#start}) } },
{ 'date.events.end': { $lte: ISODate(:#{#currentDate}) } }
")
List<Case> getUsersInPeriod(#Param("id") String id,
#Param("start") String start, #Param("currentDate") String currentDate);
Edit Playing around in Mongo Compass query box with the following:
{'user.id': '5df2b19006f31c190cc13288' }, { 'date.events.start': {$gte: ISODate('2020-02-13')} }, {'date.events.end': {$lte: ISODate('2020-02-31')}}
and it does not work as expected. So I am not sure what the issue is.
Sample Mongo document values:
start: "2020-01-20T08:30:00.000-06:00" (String)
end: "2020-01-20T15:30:00.000-06:00" (String)
Sample Comparison values:
start: "2020-01-16" (String)
end: "2020-01-31" (String)
Which didn't work, and so I wrapped the comparison values with ISODate() and that still didn't work, which now has me looking at document string values.
Edit: #3
I've converted some values in the document to Date and changed the query in Mongo Compass to:
{$and: [{'user.id': '5df2b19006f31c190cc13288' }, { 'date.events.start': {$gte: ISODate('2020-01-21')} }, {'date.events.end': {$lte: ISODate('2020-01-31')}}]}
which only picks up the document values formed as Date instead of String... so, I think I narrowed down the problem to two things (My original issue still persists with the syntax).
How do I deal with Mongo documents with string dates? Is it possible to parse the document string dates as ISODate while doing the query?
#prasad_ answer to formatting: can parse String or Date, but both must be of the same type. Ideally Date is used.
Edit #4: What I know so far...
User.id checks out. There's no issue there. I know the $and usage is correct.
Sample Document entries:
start: "2020-01-20T08:30:00.000-06:00" (String)
end: "2020-01-20T15:30:00.000-06:00" (String)
The above values should be engulfed by the following parameters:
start: 2020-01-16T19:57:54.949-06:00
end: 2020-01-31T23:59:59.999-06:00
I've converted both sets of strings to String or to Date and neither has returned results from the query made in my application; however ...
MongoDB Compass Community Query filter:
{'$and':[{'user.id':'5df2b19006f31c190cc13288'},{'date.events.start':{'$gte':'2020-01-22T08:30:00.000-06:00'}},{'date.events.end':{'$lte':'2020-01-31T15:30:00.000-06:00'}}]}
Does filter strings correctly, and...
{'$and':[{'user.id':'5df2b19006f31c190cc13288'},{'date.events.start':{'$gte':'2020-01-22T08:30:00.000-06:00'}},{'date.events.end':{'$lte':'2020-01-31T15:30:00.000-06:00'}}]}
Works when the document fields are of type Date and
start: 2020-01-21T14:30:00.000+00:00 (Date)
end: 2020-01-21T21:30:00.000+00:00 (Date)
Since I can get results in Mongo Compass Community, there must be something wrong with my application's query here:
#Query("{'$and': [{ 'user.id': :#{#id} }, { 'date.events.start': { '$gte': :#{#startPeriod} } }, { 'date.events.end': { '$lte': :#{#currentDate} } } ]}")
List<Case> getUsersInPeriod(#Param("id") String id, #Param("startPeriod") String startPeriod, #Param("currentDate") String currentDate);
The document entry is structured as:
date: (Object)
events: (Array)
[0]: (Object)
start: (String)
end: (String)
[1]: (Object)
(...)
(...)
Solution
I was able to find something that put me on the right path:
Internally, MongoDB can store dates as either Strings or as 64-bit integers. If you intend to do any operations using the MongoDB query or aggregate functions, or if you want to index your data by date, you'll likely want to store your dates as integers. If you're using the built-in "Date" data type, or a date wrapped in the ISODate() function, you're also storing your date as an integer.
https://www.compose.com/articles/understanding-dates-in-compose-mongodb/
So I changed everything to Date and now it's working as expected. Not sure what I had done wrong the first time I checked Date types, but oh well.
I still don't understand the syntax I originally asked, so if someone wants to help by providing something to read, please and thank you.
I'm using parse-server version 2.7.4 with parse (the JavaScript interface) version 1.11.1. I'm trying to execute an aggregate query using match on a date column. Here's what my pipeline looks like:
[
{
match: {
'_created_at': new Date('2018-04-01T00:00:00.000Z')
}
}
]
I most definitely have records in the database greater than that date, yet this query returns me zero records in JavaScript. However, if I run it in the Mongo shell, I get documents returned. Here is what I execute in the Mongo shell:
[
{
$match: {
'_created_at': ISODate('2018-04-01T00:00:00.000Z')
}
}
]
Am I doing something wrong with the parse JavaScript API or does it not support match aggregation on date columns? Thanks for any help.
This Meteor server code tries to update Mongodb collection but gives error:
let originalDoc = original.fetch()[0];
Meteor.users.update(userId, {
$set: {
profile: originalDoc.profile,
cmpProfile: originalDoc.cmpProfile,
aaa: originalDoc.aaa
},
$unset: {
'profile.abc': 1
}
});
The error:
Exception while invoking method 'xyz' MongoError: Cannot update 'profile' and 'profile.abc' at the same time
Any ideas? thx
The error is pretty self-explanatory: you can't at the same time $set whole profile and $unset profile.abc because MongoDB does not allow such operations.
Instead of calling $unset you could do delete originalDoc.profile.abc; before running query and that will effectively remove abc field from profile as you're setting whole embedded document.
I want to rename a field in MongoDB, then setting new Value with the old field Name: here is the example :
db.exemption.update({'ref':163},{$rename:
{'request.reference':'request.oldRef'},$set:
{'request.reference':'00000'}},true,true)
but heri the error that I got
{ [MongoError: Cannot update 'request.reference' and 'request.reference' at the same time]
name: 'MongoError',
code: 16837,
err: 'Cannot update \'request.reference\' and \'request.reference\' at the same time' }
Is there a possible way to do the update of this field inspite of using 2 queries mongo?
You could do
db.exemptions.update({ref: <value>}, {
$unset: {'request.oldRef': 1},
$set: {'request.reference': <new value>}
});
It doesn't really rename the field, but it gives you the same result.