Play JSON serialisation

[Rowland Watkins]

Hi,

Are there any tricks I might be missing for JSON serialisation for domain objects retrieved using slick-additions?

If we take the Phones domain class example. When I try to do the following:

implicit val phoneFormat = Json.format[Phone]
....

def phones = DBAction{ implicit rs =>
    Ok(toJson(Phones.list))
}

I get the following compilation error:

No Json serializer found for type List[models.Phones#TableElementType]. Try to implement an implicit Writes or Format for this type.

Previously, when using the Play JSON converters I could simply provide the case class. Do you know any easy way to do this?

Cheers,

Rowland

[Rowland Watkins]

So it looks like Phones.list was returning List(SavedEntity(key, value[Phone]))).

I've now mapped that list to a Phone with an id, so now JSON serialisation works (still need a JSON writes implicit though).

[Naftoli Gugenheim]

Hi, apologies, somehow I don't think I noticed this.

Glad you got it working in the end. I'm not familiar with Play JSON but I suppose you could also provide a de/serializer for KeyedEntity.

I guess this issue should be closed? (Feel free to reopen it if I missed something.)