rails: how to add custom json to json output

Question

Whats the easiest way of adding custom json output when you render json? I've seen people override as_json or to_json but they usually exclude attributes or include associations. Is there a way of including plain text?

in my view:

def show_json
    show_id = URI.decode(params[:id])
    show_id = show_id.gsub(/\s*$/,'')
    logger.debug "\nshow json: #{show_id}\n"
    @qtls = Qtl.find_by_sql("select * from qtls where qtl_name like '%#{show_id}%' or qtl_symbol in (select qtl_symbol from obs_traits where qtl_symbol like '%#{show_id}%' or trait_name like '%#{show_id}%');")
    render :json => @qtls
end

this returns something like:

[{qtl: {...qtl attributes..}},{... more qtls }]

and I would like to add a a specific field for each qtl. Whats best way to do that?

lisowski.r · Accepted Answer · 2012-07-19 21:07:31Z

1

override as_json or use some gem to provide many json templates for example https://github.com/fabrik42/acts_as_api

answered Jul 19, 2012 at 21:07

lisowski.r

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1 Comment

bdeonovic Over a year ago

Thank you :) This feature of acts_as_api in particular I found useful if anyone is curious: github.com/fabrik42/acts_as_api/wiki/…

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