Contents

# frozen_string_literal: true

require 'rubocop'

module RuboCop
  module Cop
    module Standard
      class RailsRenderObjectCollection < Cop
        MSG = 'Avoid `render object:`'

        def_node_matcher :render_with_options?, <<-PATTERN
          (send nil? :render (hash $...) ...)
        PATTERN

        def_node_matcher :partial_key?, <<-PATTERN
          (pair (sym :partial) $_)
        PATTERN

        def_node_matcher :object_key?, <<-PATTERN
          (pair (sym ${:object :collection :spacer_template}) $_)
        PATTERN

        def on_send(node)
          return unless (option_pairs = render_with_options?(node))

          partial_pair = option_pairs.detect { |pair| partial_key?(pair) }
          object_pair  = option_pairs.detect { |pair| object_key?(pair) }

          return unless partial_pair && object_pair

          partial_name = partial_key?(partial_pair)
          object_sym, object_node = object_key?(object_pair)

          case object_sym
          when :object
            suggestion = ", instead `render partial: #{partial_name.source}, locals: { #{File.basename(partial_name.children[0], '.html.erb')}: #{object_node.source} }`" if partial_name.children[0].is_a?(String)
            add_offense(node, location: :expression, message: "Avoid `render object:`#{suggestion}")
          when :collection, :spacer_template
            add_offense(node, location: :expression, message: 'Avoid `render collection:`')
          end
        end
      end
    end
  end
end

Version data entries

12 entries across 12 versions & 1 rubygems

Version	Path
rubocop-standard-4.2.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.1.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.0.4	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.0.3	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.0.2	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.0.1	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-4.0.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-3.2.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-3.1.2	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-3.1.1	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-3.1.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb
rubocop-standard-3.0.0	lib/rubocop/cop/standard/rails/rails_render_object_collection.rb