lib/plucky.rb in plucky-0.5.2 vs lib/plucky.rb in plucky-0.6.0

@@ -11,16 +11,29 @@
   autoload :Version, 'plucky/version'
 
   # Array of finder DSL methods to delegate
   Methods = Plucky::Query::DSL.instance_methods.sort.map(&:to_sym)
 
+  # Public: Converts value to object id if possible
+  #
+  # value - The value to attempt converation of
+  #
+  # Returns BSON::ObjectId or value
   def self.to_object_id(value)
     return value if value.is_a?(BSON::ObjectId)
     return nil   if value.nil? || (value.respond_to?(:empty?) && value.empty?)
 
     if BSON::ObjectId.legal?(value.to_s)
       BSON::ObjectId.from_string(value.to_s)
     else
       value
     end
+  end
+
+  # Private
+  ModifierString = '$'
+
+  # Internal
+  def self.modifier?(key)
+    key.to_s[0, 1] == ModifierString
   end
 end