Rails to_json add your key and value?

Question

Ruby on Rails

Hello. Don't tell me, please. How can I add my key and value to the resulting

menu_requirement.to_json(
        only: [ :number ], user: 555
 }

to get the output

{
    "number": "KL-000000053",
    "user': "555"
}

Thank you.

Answer 1

Correct as_json, not to_json.

h = menu_requirement.as_json(
        only: [ :number ]
)
h[:user] = 555 # Если атрибут :user отсутствует в модели MenuRequirement

# puts h.inspect