Contents

module Trestle
  class Scopes
    class Block
      attr_reader :block, :options

      def initialize(options={}, &block)
        @options, @block = options, block
      end

      # Evaluates the scope block within the given admin context
      # and returns an array of the scopes that were defined.
      def scopes(context)
        context = Evaluator.new(context, options)
        context.instance_exec(context, &block)
        context.scopes
      end

      class Evaluator
        include EvaluationContext

        attr_reader :scopes

        def initialize(context=nil, defaults={})
          @context, @defaults = context, defaults
          @scopes = []
        end

        def scope(name, scope=nil, options={}, &block)
          if scope.is_a?(Hash)
            options = scope
            scope = nil
          end

          scopes << Scope.new(@context, name, @defaults.merge(options), &(scope || block))
        end
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
trestle-0.10.0	lib/trestle/scopes/block.rb
trestle-0.10.0.pre2	lib/trestle/scopes/block.rb
trestle-0.10.0.pre	lib/trestle/scopes/block.rb