The simple version
What's the preferred way to import and use generated Slick tables?
The detailed version and what I've tried
I used Slick 3.1.1 codegen to generate a Tables.scala
from a MySQL (MariaDB) schema.
Tables.scala
begins with this:
// AUTO-GENERATED Slick data model
/** Stand-alone Slick data model for immediate use */
object Tables extends {
val profile = slick.driver.MySQLDriver
} with Tables
What's the best way to use these classes? As per the Slick documentation:
The file contains an object Tables from which the code can be imported for use right away. ... The file also contains a trait Tables which can be used in the cake pattern.
... I've tried variations on this example
import Tables._
import Tables.profile.api._
import slick.jdbc.JdbcBackend
class Test(s: String)(implicit db: Database) {
def exec[T](action: DBIO[T])(implicit db: Database): T =
Await.result(db run action)
def run: Unit = exec(((ATable filter (_.id)).result)
}
object Test {
implicit val db = Database.forURL(url, user, password)
new Test("")
}
I get a compile error wherever I reference the class ATable:
could not find implicit value for parameter tables: Tables
I don't even see tables
in Tables.scala
. How do I get everything I need in scope to use my generated Slick classes?
I got the example to work:
Tables._
andTables.profile.api._
just need to be imported inside the class with an implicitDatabase
available.