Why, after redefining the receipt of a field from the model, its change does not work?

Question

Ruby on Rails

Hello.
There is a model. It has an options field, of type json. In the database, this field can be null.
I want that in rails, if in the base this field is null, then I would still return an empty Hash.
I wrote this method (in the model)

def options
  self[:options] || {}
end

But, after that, this construction does not work: direct assignment ( ) works fine. When debugging, I see that when assigning a key (which does not work), execution enters my overridden method. But it's just getting the value. I can't figure out how to make it work :)
instance.options[:some_key] = some_value
instance.options = {some_key: some_value}

Answer 1

can be written like this

def options
  self[:options] ||= {}
end