Rails using variable name as key for json array

Question

In Rails I'm rendering a json array, but I need one of the keys to have a variable name depending on the params. something like this:

render json: {
        key1: values
        params[:type]: more_values,
        labels: some_lables
      }

obviously this doesn't work, but what will?

Arup Rakshit · Answer 1 · 2015-05-26 16:38:12Z

up vote 1 down vote

Use interpolation :

render json: {
        :key1 => values,
        :"#{params[:type]}" => more_values,
        labels: some_lables
      }

answered 4 hours ago

Arup Rakshit
63.4k974124

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Dave Newton · Answer 2 · 2015-05-26 16:39:44Z

up vote 1 down vote

Make a hash and render it as JSON.

h = { key1: values, labels: some_labels }
h[params[:type]] = more_values
render h.to_json

Dave Newton
102k11124157

answered 4 hours ago

San
90047

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2 Answers 2