Contents

# frozen_string_literal: true

module RuboCop
  module Cop
    module Rails
      # This cop checks if the value of the option `class_name`, in
      # the definition of a reflection is a string.
      #
      # @example
      #   # bad
      #   has_many :accounts, class_name: Account
      #   has_many :accounts, class_name: Account.name
      #
      #   # good
      #   has_many :accounts, class_name: 'Account'
      class ReflectionClassName < Base
        MSG = 'Use a string value for `class_name`.'
        RESTRICT_ON_SEND = %i[has_many has_one belongs_to].freeze

        def_node_matcher :association_with_reflection, <<~PATTERN
          (send nil? {:has_many :has_one :belongs_to} _ _ ?
            (hash <$#reflection_class_name ...>)
          )
        PATTERN

        def_node_matcher :reflection_class_name, <<~PATTERN
          (pair (sym :class_name) [!dstr !str !sym])
        PATTERN

        def on_send(node)
          association_with_reflection(node) do |reflection_class_name|
            add_offense(reflection_class_name.loc.expression)
          end
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rubocop-rails-2.9.1	lib/rubocop/cop/rails/reflection_class_name.rb
rubocop-rails-2.9.0	lib/rubocop/cop/rails/reflection_class_name.rb