MongoDB is a scalable, high-performance, open source, document-oriented database. This tag is used for questions related to the Scala driver for MongoDB.
The Scala Driver Documentation.
Questions tagged [mongodb-scala]
40 questions
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How do I replicate this mongodb regex in query using mongo-scala-driver?
I can query mongodb directly using this query {key: {$in: [/faq/]}} but how do I replicate this when using Filters#in?
in("key", Seq("/faq/")) doesn't work as it gets passed as a string.
pradhyo
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1 answer
Unable to make connection to MongoDB using MongoDB Scala Driver
I am using Scala driver for MongoDB to make a connection and insert a document in the class. I am following their official documentation as mentioned in this link. (http://mongodb.github.io/mongo-scala-driver/2.6/getting-started/quick-tour/)
I am…
omer khalid
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1 answer
Official MongoDB Scala Driver, aggregate count sum 1
I am using official mongo scala driver: http://mongodb.github.io/mongo-scala-driver/.
I want to do query like:
db.test.aggregate([{"$group" : {_id:{name:"$name",details:"$details.id"}, count:{$sum:1}}}, {$sort:{"count":-1}} ])
so in scala code I am…
FrancMo
- 2,459
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MongoDB Scala Driver counterpart to Javascript Object
I am trying to create a document with the counterpart to a Javascript Object Map[String, Any]. When I try to insert a new Document I'll get this Exception:
org.bson.codecs.configuration.CodecConfigurationException: Can't find a codec for class…
B. Kemmer
- 1,517
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mongodb spark connector, cannot write Dense or Sparse Vector
I try to writing my dataframe with a column typed as "dense vector" in mongodb with mongo spark connector.
but i getting this error :
cannot cast [2.0,2.0,115.0,0.0,0.0,0.0,0.0,0.0] into a BsonValue.
org.apache.spark.ml.linalg.VectorUDT@3bfc3ba7…
harksin
- 235
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- 11
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How do I bind a Scala value retrieved using mongodb-scala-driver to an identifier?
I'm converting code from Casbah to mongodb-scala-driver, and when it comes to capturing the result of a query, the best I've come up with so far is:
var doc: Option[Document] = None
collection.find(and(equal("name",name),equal("hobby",…
gknauth
- 2,310
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play2 framework mongodb : [NoSuchElementException: None.get]
I am having a hard time trying to create my BSON reader/writer on play 2.1.5 with mongodb.
Here is a code excerpt in app/model/Boat.scala :
implicit object BoatBSONReader extends BSONDocumentReader[Boat] {
def read(doc: BSONDocument): Boat =
…
Manel
- 1,616
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Block a change field in mongoDB
I have a collection in MongoDB which makes an increase, the field was initially defined as an Integer, but I find that after the increase was converted to double.
But then I make an update of the document and see that changes to Long.
Is there any…
jmmontero
- 169
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$addToSet $each exception in casbah 2.6.2
After moving from casbah 2.6.1 to 2.6.2, I got the following exception for $addToSet $each update queries.
val s = Set(1,2,3)
$addToSet("ids") $each(s)
java.lang.NoSuchMethodException:
…
deepkimo
- 3,187
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runcommand is not a memeber of casbah mongocolection
db.foo.insert( { _id: 1 , desc: "the dog is running" } )
db.foo.insert( { _id: 2 , desc: "the cat is walking" } )
db.foo.ensureIndex( { "desc": "text" } )
db.foo.runCommand( "text", { search : "walk" } )
This is run in mongo
How can i run in the…
