Ordering Postgres jsonb in Rails

Question

I'm trying to order by a jsonb column in rails using:

Stat.order("data ->'likes'->'followed_by' ASC")

I keep getting this error returned.

PG::UndefinedFunction: ERROR:  could not identify an ordering operator for type json

I can't figure out is it my formatting? The followed_by attribute is a int.

Thank you!

Answer 1

I'm not certain but according to http://www.postgresql.org/docs/9.3/static/functions-json.html

1. -> "Get JSON object field"
2. ->> "Get JSON object field as text"

So perhaps activerecord can't sort the field but can sort the text?

Try: Stat.order("data ->'likes'->>'followed_by' ASC")