Rails as_json with conditions

Question

In my application, :foos have many :bars, and I\'m serializing each foo as JSON like so:

@foo.as_json(
  except: [:created_at, :upd         


        

Answer 1

you use as_json with conditions for customize json response for some actions, but model serializers for default json response that you needed for the most responses.

Read these Model_Serializer VS. as_json, record-serializers-from-scratch.

Answer 2

I think you could try add some method like active_bars which will return exactly what you need like:

def active_bars
  bars.where active: true
end

or you could even add new relation:

has_many :active_bars, -> { where active: true }, class_name: '..', foreign_id: '..'

and then you will be able write:

@foo.as_json(
  except: [:created_at, :updated_at], 
  include: { 
    active_bars: { only: [:ip_addr, :active] }
  }
)