Push scale to type objects

Ideally types will be usable without having to specify a sql type
string, so we should keep the information related to parsing them on the
adapter or another object.

2 files changed, 7 insertions, 4 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/type/decimal.rb b/activerecord/lib/active_record/connection_adapters/type/decimal.rb
index a8cd1cf5b5..ac5af4b963 100644
--- a/activerecord/lib/active_record/connection_adapters/type/decimal.rb
+++ b/activerecord/lib/active_record/connection_adapters/type/decimal.rb
@@ -4,8 +4,6 @@ module ActiveRecord
       class Decimal < Value # :nodoc:
         include Numeric
 
-        delegate :extract_scale, to: Type
-
         def type
           :decimal
         end
diff --git a/activerecord/lib/active_record/connection_adapters/type/value.rb b/activerecord/lib/active_record/connection_adapters/type/value.rb
index 6687c9a2a4..b37c3bad58 100644
--- a/activerecord/lib/active_record/connection_adapters/type/value.rb
+++ b/activerecord/lib/active_record/connection_adapters/type/value.rb
@@ -2,9 +2,14 @@ module ActiveRecord
   module ConnectionAdapters
     module Type
       class Value # :nodoc:
-        def type; end
+        attr_reader :scale
+
+        def initialize(options = {})
+          options.assert_valid_keys(:scale)
+          @scale = options[:scale]
+        end
 
-        def extract_scale(sql_type); end
+        def type; end
 
         def extract_precision(sql_type); end