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import anorm._
import org.scalatest._
import org.scalatestplus.play._
import play.api.db._
import play.api.libs.json._
import play.api.test._
import play.api.test.Helpers._
import scala.util.{Failure, Success, Try}
case class Example(
data: JsValue
)
class ExampleSpec extends PlaySpec with OneAppPerSuite {
import scala.concurrent.ExecutionContext.Implicits.global
"example" in {
DB.withConnection { implicit c =>
SQL("drop table if exists pgbugkeystore").execute()
SQL("create table pgbugkeystore(data json)").execute()
SQL("insert into pgbugkeystore (data) values ({data}::json)").on(
'data -> "{}"
).executeUpdate()
SQL("select data from pgbugkeystore").as(
SqlParser.get[JsObject]("data").*
)
}
}
implicit val columnToJsObject: Column[play.api.libs.json.JsObject] = Util.parser { _.as[play.api.libs.json.JsObject] }
/**
* Conversions to collections of objects using JSON.
*/
object Util {
def parseJson[T](f: play.api.libs.json.JsValue => T, columnName: String, value: String) = {
Try {
f(
play.api.libs.json.Json.parse(value)
)
} match {
case Success(result) => Right(result)
case Failure(ex) => Left(
TypeDoesNotMatch(
s"Column[$columnName] error parsing json $value: $ex"
)
)
}
}
def parser[T](
f: play.api.libs.json.JsValue => T
) = anorm.Column.nonNull { (value, meta) =>
val MetaDataItem(columnName, nullable, clazz) = meta
value match {
case json: org.postgresql.util.PGobject => parseJson(f, columnName.qualified, json.getValue)
case _=> {
Left(
TypeDoesNotMatch(
s"Column[${columnName.qualified}] error converting $value to Json. Expected class to be[org.postgresql.util.PGobject] and not[${value.asInstanceOf[AnyRef].getClass}"
)
)
}
}
}
}
}
|
