The quick and dirty datastore for prototyping
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Cagette is a quick and dirty data store for prototyping

Setting up with sbt

Configure a new resolver:

resolvers += "Guillaume Bort" at ""

Add the library dependency:

libraryDependencies += "guillaume.bort" %% "cagette" % "0.1"

Using – as easy as 1,2,3

1. Create your domain class:

Let's try with a User class with an id field of any type:

case class User(id: Long, email: String, groups: Seq[String])

2. Create a Cageot[DomainType,IdType] to store the User instances:

We usually name the Cageot with the same name as the domain class:

object User extends cagette.Cageot[User,Long]

3. Query your cagette using Scala functions

The Cageot type provide some convenient higher order query functions you can use directly:


val allusers: Seq[User] = User.findAll()

findById(id: IdType)

val maybeUser: Option[User] = User.findById(100)

findOneBy(predicate: DomainType => Boolean)

val maybeUser: Option[User] = User.findOneBy( == "")

findBy(predicate: DomainType => Boolean)

val adminUsers: Seq[User] = User.findBy(_.groups.contains("admin"))

Setting up initial data set

While defining your Cageot you can define the initial data set it will contain:

object User extends cagette.Cageot[User,Long] {
	override def initialData = Seq(
		User(1, "", groups = Seq("admin", "user")),
		User(2, "", groups = Seq("user")),
		User(3, "", groups = Nil),


Updating data

save will insert a new instance

If you want to store a new instance into your Cageot, just use the save operation as: 
  User(99, "", groups = Seq("user")) 

but save will also update an existing instance

If the store already contains an instance with the same id, this instance will just be udpated:

User.findById(theIdRetrievedFromTheRequest).map { user => = (user.groups :+ "admin").distinct ))

then you can delete them later

You can either delete by using the id of the instances you want to remove as:


or batch delete using a predicate as:



Check the source code and find secret features like pagination and autoincrement for domain class identifiers.