Method: GraphQL::Schema::Argument#prepare_value

Defined in:
lib/graphql/schema/argument.rb

#prepare_value(obj, value, context: nil) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Apply the #prepare configuration to value, using methods from obj. Used by the runtime.



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# File 'lib/graphql/schema/argument.rb', line 230

def prepare_value(obj, value, context: nil)
  if type.unwrap.kind.input_object?
    value = recursively_prepare_input_object(value, type, context)
  end

  Schema::Validator.validate!(validators, obj, context, value)

  if @prepare.nil?
    value
  elsif @prepare.is_a?(String) || @prepare.is_a?(Symbol)
    if obj.nil?
      # The problem here is, we _used to_ prepare while building variables.
      # But now we don't have the runtime object there.
      #
      # This will have to be called later, when the runtime object _is_ available.
      value
    elsif obj.respond_to?(@prepare)
      obj.public_send(@prepare, value)
    elsif owner.respond_to?(@prepare)
      owner.public_send(@prepare, value, context || obj.context)
    else
      raise "Invalid prepare for #{@owner.name}.name: #{@prepare.inspect}. "\
        "Could not find prepare method #{@prepare} on #{obj.class} or #{owner}."
    end
  elsif @prepare.respond_to?(:call)
    @prepare.call(value, context || obj.context)
  else
    raise "Invalid prepare for #{@owner.name}.name: #{@prepare.inspect}"
  end
end