Rails: Include nested objects in json response -


i´m trying write json response include objects associations. object structure:

category   - sub_categories   - options      - city

i going respond list of categories include sub_categories , options , city object each option. have now:

categories.as_json(:include => [:sub_categories, :options => :city])

which gives me "typeerror (can't clone symbol):" server error.

if try:

categories.as_json(:include => [:sub_categories, :options])

it works need include city-object each options well.

how can this?


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