diff options
Diffstat (limited to 'activerecord/lib/active_record/scoping/named.rb')
-rw-r--r-- | activerecord/lib/active_record/scoping/named.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb index 2a5718f388..35420e6551 100644 --- a/activerecord/lib/active_record/scoping/named.rb +++ b/activerecord/lib/active_record/scoping/named.rb @@ -139,6 +139,16 @@ module ActiveRecord # Article.published.featured.latest_article # Article.featured.titles def scope(name, body, &block) + unless body.respond_to?(:call) + raise ArgumentError, 'The scope body needs to be callable.' + end + + if dangerous_class_method?(name) + raise ArgumentError, "You tried to define a scope named \"#{name}\" " \ + "on the model \"#{self.name}\", but Active Record already defined " \ + "a class method with the same name." + end + extension = Module.new(&block) if block singleton_class.send(:define_method, name) do |*args| |