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# File 'lib/scoped_traversal/model_additions.rb', line 4
def traverse_by(scope, options = {})
if options[:namespace] == true
next_method_name = "next_#{scope}"
previous_method_name = "previous_#{scope}"
elsif options[:namespace]
next_method_name = "next_#{options[:namespace]}"
previous_method_name = "next_#{options[:namespace]}"
else
next_method_name = "next"
previous_method_name = "previous"
end
define_method next_method_name do
list = self.class.try(scope.to_sym).all
list[list.index(self) + 1]
end
define_method previous_method_name do
list = self.class.try(scope.to_sym).all
list[list.index(self) - 1]
end
end
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