instance method `scope`

Ruby on Rails 8.1.2

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

scope(*args, only: nil, except: nil, **options)

Scopes a set of routes to the given default options.

Take the following route definition as an example:

scope path: ":account_id", as: "account" do
  resources :projects
end

This generates helpers such as account_projects_path, just like resources does. The difference here being that the routes generated are like /:account_id/projects, rather than /accounts/:account_id/projects.

Options

Takes same options as Base#match and Resources#resources.

# route /posts (without the prefix /admin) to Admin::PostsController
scope module: "admin" do
  resources :posts
end

# prefix the posts resource's requests with '/admin'
scope path: "/admin" do
  resources :posts
end

# prefix the routing helper name: sekret_posts_path instead of posts_path
scope as: "sekret" do
  resources :posts
end

Parameters

args rest
only key = nil
except key = nil
options keyrest

Source

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 989
        def scope(*args, only: nil, except: nil, **options)
          if args.grep(Hash).any? && (deprecated_options = args.extract_options!)
            only ||= assign_deprecated_option(deprecated_options, :only, :scope)
            only ||= assign_deprecated_option(deprecated_options, :except, :scope)
            assign_deprecated_options(deprecated_options, options, :scope)
          end

          scope = {}

          options[:path] = args.flatten.join("/") if args.any?
          options[:constraints] ||= {}

          unless nested_scope?
            options[:shallow_path] ||= options[:path] if options.key?(:path)
            options[:shallow_prefix] ||= options[:as] if options.key?(:as)
          end

          if options[:constraints].is_a?(Hash)
            defaults = options[:constraints].select do |k, v|
              URL_OPTIONS.include?(k) && (v.is_a?(String) || v.is_a?(Integer))
            end

            options[:defaults] = defaults.merge(options[:defaults] || {})
          else
            block, options[:constraints] = options[:constraints], {}
          end

          if only || except
            scope[:action_options] = { only:, except: }
          end

          if options.key? :anchor
            raise ArgumentError, "anchor is ignored unless passed to `match`"
          end

          @scope.options.each do |option|
            if option == :blocks
              value = block
            elsif option == :options
              value = options
            else
              value = options.delete(option) { POISON }
            end

            unless POISON == value
              scope[option] = send("merge_#{option}_scope", @scope[option], value)
            end
          end

          @scope = @scope.new scope
          yield
          self
        ensure
          @scope = @scope.parent
        end

Defined in actionpack/lib/action_dispatch/routing/mapper.rb line 989 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionDispatch::Routing::Mapper::Scoping

Signature

Options

Parameters