Rails "try" a constant

Question

I am loading serializers by building the namespace and name of them and using constantize.

If the serializer doesn't exist then this will throw the uninitialized constant error.

Is there any way I can try the constant or actively check that the serializer exists before converting the name to a constant?

Answer 1

You can use Object.const_defined?:

'Serializer'.constantize if Object.const_defined?('Serializer')

Alternatively you can also use the Ruby method Object.const_get instead the Rails one:

Object.const_get('Serializer')