2 files changed, 5 insertions, 15 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
index 95f52312a5..80c79642f3 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb
@@ -6,16 +6,15 @@ module ActiveRecord
     class PostgreSQLColumn < Column #:nodoc:
       attr_accessor :array
 
-      def initialize(name, default, oid_type, sql_type = nil, null = true)
-        @oid_type = oid_type
+      def initialize(name, default, cast_type, sql_type = nil, null = true)
         default_value     = self.class.extract_value_from_default(default)
 
         if sql_type =~ /\[\]$/
           @array = true
-          super(name, default_value, oid_type, sql_type[0..sql_type.length - 3], null)
+          super(name, default_value, cast_type, sql_type[0..sql_type.length - 3], null)
         else
           @array = false
-          super(name, default_value, oid_type, sql_type, null)
+          super(name, default_value, cast_type, sql_type, null)
         end
 
         @default_function = default if has_default_function?(default_value, default)
@@ -105,7 +104,7 @@ module ActiveRecord
       end
 
       def accessor
-        @oid_type.accessor
+        cast_type.accessor
       end
 
       private
diff --git a/activerecord/test/cases/adapters/postgresql/array_test.rb b/activerecord/test/cases/adapters/postgresql/array_test.rb
index c20030ca64..34c2008ab4 100644
--- a/activerecord/test/cases/adapters/postgresql/array_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/array_test.rb
@@ -89,16 +89,7 @@ class PostgresqlArrayTest < ActiveRecord::TestCase
   end
 
   def test_type_cast_array
-    data = '{1,2,3}'
-    oid_type  = @column.instance_variable_get('@oid_type').subtype
-    # we are getting the instance variable in this test, but in the
-    # normal use of string_to_array, it's called from the OID::Array
-    # class and will have the OID instance that will provide the type
-    # casting
-    array = @column.class.string_to_array data, oid_type
-    assert_equal(['1', '2', '3'], array)
-    assert_equal(['1', '2', '3'], @column.type_cast(data))
-
+    assert_equal(['1', '2', '3'], @column.type_cast('{1,2,3}'))
     assert_equal([], @column.type_cast('{}'))
     assert_equal([nil], @column.type_cast('{NULL}'))
   end