Support json field type in graphql views

Created MR. Please review, thanks!

Hiya

Custom Scala should just return the content as is
Which would return the json from the field?

Or does it not do that?
Or are you needing it as a php array earlier for any specific reason?

I confirm that Scala returns the context as it is , but the problem is that the returned json by the formatter is a plain text of the json, and not the json decoded.

Then, in the GraphQL view, instead of returning

"myJsonField": {
"foo": "bar"
}

it returns:

"myJsonField": "\<code>{\r\n  \"foo\": \"bar\"\r\n}\</co..>"

This MR allows recognizing this specific case and do the conversion.

Gotcha! Ok I’ll review this at lunchtime today.

I've mutilated your nice 3 liner (sorry!), but the class needed a good cleanup :D
With this change, set to raw + scalar, and it'll attempt to convert from json.

Let me know if this suits

I've checked this and it works fine. I prefer this solution rather than the previous one as it not rely anymore in the values returned by formatters, so results are more predictible. Thanks!

Moving to RTBC