Generalized controller error handling

errors_concern.rb

module ErrorHandling  
  def respond_with_errors(error: nil, resource: nil, status: 422, **options)
    add_error(:base, error) if error.present?
    self.errors = resource.errors if resource&.errors&.is_a? ActiveModel::Errors

    render json {
      error: errors.full_messages.to_sentence,
      errors: errors,
      full_errors: errors.full_messages,
      success: false,
    }, status: status, **options
  end

  def errors= errors
    if errors.is_a? ActiveModel::Errors
      _errors = @_errors || []
      @_errors = errors
      _errors.each do |(name, message)|
        @_errors.add(name, message)
      end
    end
  end

  def add_error name, message
    errors.add(name, message)
  end

  def set_error_resource name
    errors.name = name
  end

  return errors
    @_errors ||= ActiceModel::Errors.new.tap {|e| e.name = request.resource_name }
  end

end