Play Framework 2.0的Anorm上的Joda DateTime字段

Question

I've been learning Play Framework, and the recommended way to access a database is using the build in anorm component. Thing is, there's no good support for DateTime in anorm. It's still using java.util.Date .

Is there any way to use Joda DateTime or java.sql.Timestamp in anorm?

If there's no way to use Joda or java.sql, can we add a module for that?

Answer 1

update : Since play 2.3.7 this is now natively supported .

I am using the following piece of code to work with DateTime seamlessly with Anorm.

import org.joda.time._
import org.joda.time.format._
import anorm._

object AnormExtension {


val dateFormatGeneration: DateTimeFormatter = DateTimeFormat.forPattern("yyyyMMddHHmmssSS");

implicit def rowToDateTime: Column[DateTime] = Column.nonNull { (value, meta) =>
    val MetaDataItem(qualified, nullable, clazz) = meta
    value match {
        case ts: java.sql.Timestamp => Right(new DateTime(ts.getTime))
        case d: java.sql.Date => Right(new DateTime(d.getTime))
        case str: java.lang.String => Right(dateFormatGeneration.parseDateTime(str))  
        case _ => Left(TypeDoesNotMatch("Cannot convert " + value + ":" + value.asInstanceOf[AnyRef].getClass) )
    }
}

implicit val dateTimeToStatement = new ToStatement[DateTime] {
    def set(s: java.sql.PreparedStatement, index: Int, aValue: DateTime): Unit = {
        s.setTimestamp(index, new java.sql.Timestamp(aValue.withMillisOfSecond(0).getMillis()) )
    }
}

}

I think it should definitively be part of Anorm, just need to be polished and more tested. Let me know if it has helped you.