diff options
| -rw-r--r-- | activerecord/lib/active_record/associations/belongs_to_association.rb | 4 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/belongs_to_associations_test.rb | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index adb6af7165..58c9648ce8 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -20,6 +20,10 @@ module ActiveRecord private + def find_target? + !loaded? && foreign_key_present? && klass + end + def update_counters(record) counter_cache_name = reflection.counter_cache_column diff --git a/activerecord/test/cases/associations/belongs_to_associations_test.rb b/activerecord/test/cases/associations/belongs_to_associations_test.rb index 818902beb5..866a3cca10 100644 --- a/activerecord/test/cases/associations/belongs_to_associations_test.rb +++ b/activerecord/test/cases/associations/belongs_to_associations_test.rb @@ -352,6 +352,12 @@ class BelongsToAssociationsTest < ActiveRecord::TestCase assert_equal members(:groucho), sponsor.sponsorable end + def test_dont_find_target_when_foreign_key_is_null + tagging = taggings(:thinking_general) + queries = assert_sql { tagging.super_tag } + assert_equal 0, queries.length + end + def test_field_name_same_as_foreign_key computer = Computer.find(1) assert_not_nil computer.developer, ":foreign key == attribute didn't lock up" # ' |