Slick 3.0.0 upgrade - default project using generic column type
I have a table definition with a shared column working in Slick 2.1.0 but cannot get it to work in 3.0.0, more on table structure below.
abstract class SomeTable[V](tag: Tag, schemaName: String, tableName: String)
extends Table[(String, Int, Date, Timestamp, V)](tag, Some(schemaName), tableName) {
def entityKey = column[String]("ENTITY_KEY")
def someId = column[Int]("SOME_ID")
def someDate = column[Date]("SOME_DATE")
def someTime = column[Timestamp]("SOME_TIME")
def someValue: Rep[V]
def * = (entityKey, someId, someDate, someTime, someValue)
}
Error details -
[error] found : (slick.lifted.Rep[String], slick.lifted.Rep[Int], slick.lifted.Rep[java.sql.Date], slick.lifted.Rep[java.sql.Timestamp], slick.lifted.Rep[V])
[error] required: slick.lifted.ProvenShape[(String, Int, java.sql.Date, java.sql.Timestamp, V)]
I believe the cause of the error is "someValue" which is a generic type and cannot be resolved in the ProvenShape.
Please let me know any suggestions for fixing this error. Thank.
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1 answer
I had the same problem and managed to get the code to compile by changing to:
abstract class SomeTable[V](tag: Tag, schemaName: String, tableName: String) extends Table[(String, Int, Date, Timestamp, V)](tag, Some(schemaName), tableName) { def entityKey = column[String]("ENTITY_KEY") def someId = column[Int]("SOME_ID") def someDate = column[Date]("SOME_DATE") def someTime = column[Timestamp]("SOME_TIME") def someValue: Rep[V] def *: ProvenShape[(String, Int, Date, Timestamp, V)] = proveShapeOf(entityKey, someId, someDate, someTime, someValue) }
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