lib/cachetastic/ruby_extensions/object.rb in cachetastic-2.1.3 vs lib/cachetastic/ruby_extensions/object.rb in cachetastic-2.1.4

@@ -3,6 +3,20 @@
   # Override this method in your object if you use the Cachetastic::Cacheable module.
   def cachetastic_key
     raise NoMethodError.new('cachetastic_key')
   end
   
+  unless respond_to?(:ivar_cache)
+    def ivar_cache(var_name = nil, &block)
+      if var_name.nil?
+        call = caller[0]
+        var_name = call[(call.index('`')+1)...call.index("'")]
+      end
+      var = instance_variable_get("@#{var_name}")
+      unless var
+        return instance_variable_set("@#{var_name}", yield) if block_given?
+      end
+      instance_variable_get("@#{var_name}")
+    end
+  end
+  
 end
\ No newline at end of file