Use inspect when writing the foreign key from the reflection

If we don't use inspect inside the class_eval block then the foreign key
is written without quotes causing us to fetch the foreign key value and
not the column name.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb
index 579d7789bd..da7e8cda3a 100644
--- a/activerecord/lib/active_record/associations/builder/belongs_to.rb
+++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb
@@ -68,11 +68,11 @@ module ActiveRecord::Associations::Builder
         def belongs_to_touch_after_save_or_destroy_for_#{name}
           record = #{name}
 
-          foreign_key_field   = #{reflection.foreign_key}
+          foreign_key_field   = #{reflection.foreign_key.inspect}
           if changed_attributes.key?(foreign_key_field)
             reflection_klass  = #{reflection.klass}
             old_foreign_id    = changed_attributes[foreign_key_field]
-            old_record        = reflection_klass.where(foreign_key_field.to_sym => old_foreign_id).first
+            old_record        = reflection_klass.where(foreign_key_field => old_foreign_id).first
             if old_record
               old_record.touch #{options[:touch].inspect if options[:touch] != true}
             end