Class: Pakyow::Routing::Expansion Private

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/pakyow/routing/expansion.rb

Overview

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

Expands a route template.

API:

  • private

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template_name, controller, options, &template_block) ⇒ Expansion

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.

Returns a new instance of Expansion.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 17

def initialize(template_name, controller, options, &template_block)
  @controller = controller

  # Create the controller that stores available routes, groups, and namespaces.
  #
  @expander = Controller.make(set_const: false)

  # Evaluate the template to define available routes, groups, and namespaces.
  #
  instance_exec(**options, &template_block)

  # Define helper methods for routes
  #
  local_expander = @expander
  @expander.routes.each do |method, routes|
    routes.each do |route|
      unless @controller.singleton_class.instance_methods(false).include?(route.name)
        @controller.define_singleton_method route.name do |*args, &block|
          # Handle template parts named `new` by determining if we're calling `new` to expand
          # part of a template, or if we're intending to create a new controller instance.
          #
          # If args are empty we can be sure that we're creating a route.
          #
          if args.any?
            super(*args)
          else
            build_route(method, route.name, route.path || route.matcher, &block).tap do
              # Make sure the route was inserted in the same order as found in the template.
              #
              index_of_last_insert = local_expander.routes[method].index { |expander_route|
                expander_route.name == @routes[method].last.name
              }

              insert_before_this_index = @routes[method].select { |each_route|
                local_expander.routes[method].any? { |expander_route|
                  each_route.name == expander_route.name
                }
              }.map { |each_route|
                local_expander.routes[method].index { |expander_route|
                  expander_route.name == each_route.name
                }
              }.select { |index|
                index > index_of_last_insert
              }.first

              if insert_before_this_index
                @routes[method].insert(
                  @routes[method].index { |each_route|
                    each_route.name == local_expander.routes[method][insert_before_this_index].name
                  }, @routes[method].delete_at(index_of_last_insert)
                )
              end
            end
          end
        end
      end
    end
  end

  # Define helper methods for groups and namespaces
  #
  @expander.children.each do |child|
    unless @controller.singleton_class.instance_methods(false).include?(child.__object_name.name)
      @controller.define_singleton_method child.__object_name.name do |&block|
        if child.path.nil?
          group(child.__object_name.name, &block)
        else
          namespace(child.__object_name.name, child.path || child.matcher, &block)
        end
      end
    end
  end

  # Set the expansion on the controller.
  #
  @controller.expansions << template_name
end

Instance Attribute Details

#controller ⇒ Object (readonly)

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.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 11

def controller
  @controller
end

#expander ⇒ Object (readonly)

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.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 11

def expander
  @expander
end

#name ⇒ Object (readonly)

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.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 11

def name
  @name
end

Instance Method Details

#group(*args, **kwargs, &block) ⇒ 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.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 95

def group(*args, **kwargs, &block)
  @expander.send(:group, *args, set_const: false, **kwargs, &block)
end

#namespace(*args, **kwargs, &block) ⇒ 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.

API:

  • private



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# File 'lib/pakyow/routing/expansion.rb', line 99

def namespace(*args, **kwargs, &block)
  @expander.send(:namespace, *args, set_const: false, **kwargs, &block)
end