47colborne/cloud-sesame

module CloudSesame
    module Query
        module DSL
            module ScopeAccessors

                def scopes(name = nil, *args)
                    return _return if name.nil?

                    defined_scopes = _scope.context[:scopes]
                    if defined_scopes && (block = defined_scopes[name.to_sym])
                        instance_exec(*args, &block)
                        _return
                    else
                        raise Error::ScopeNotDefined
                    end
                end

                private

                def method_missing(name, *args, &block)
                    scopes name, *args
                rescue Error::ScopeNotDefined
                    super
                end

            end
        end
    end
end