How to output all attributes jbuilder, without having to specify them all?

Question

I'm using json to store document versions of my data in postgresql. I would like to output an entire tree of objects with children, children of children etc and all attributes. If any attributes are added to any of the objects at a later date, I would like them to be include in subsequent json.

Is there any way to output the entire contents without having to least each and every attribute? ie not like this:

json.(object_name, :id, :attr1, :attr2.... etc)

Answer 1

I know this is an old thread, but I was wondering the same thing, and ended up here. Then I found a great answer here => How to extract all attributes with Rails Jbuilder?

@uiureo suggests to use json.merge!, and that worked perfactly for me :)

json.merge! object_name.attributes