lib/eco/language/models/collection.rb in eco-helpers-1.3.1 vs lib/eco/language/models/collection.rb in eco-helpers-1.3.2

@@ -152,13 +152,12 @@
         def contains(attr, value, modifier = Language::MatchModifier.new)
           modifier = modifier.new.pattern
           self.attr(attr, value, modifier)
         end
 
-        def group_by(attr)
-          to_h(attr)
-          #return {} if !attr
-          #self.to_a.group_by { |object| object.method(attr).call }
+        def group_by(attr = nil, &block)
+          return to_h(attr) if attr
+          to_a.group_by(&block) if block
         end
 
         def to_h(attr)
           return {} if !attr
           to_a.group_by { |object| object.method(attr).call }