diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/collection_cache_key.rb | 10 | ||||
| -rw-r--r-- | activerecord/test/cases/collection_cache_key_test.rb | 5 |
2 files changed, 13 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb index b0e555038e..b20df1c232 100644 --- a/activerecord/lib/active_record/collection_cache_key.rb +++ b/activerecord/lib/active_record/collection_cache_key.rb @@ -19,8 +19,14 @@ module ActiveRecord .unscope(:order) result = connection.select_one(query) - size = result["size"] - timestamp = column_type.deserialize(result["timestamp"]) + if result.blank? + size = 0 + timestamp = nil + else + size = result["size"] + timestamp = column_type.deserialize(result["timestamp"]) + end + end if timestamp diff --git a/activerecord/test/cases/collection_cache_key_test.rb b/activerecord/test/cases/collection_cache_key_test.rb index 93e7b9cff6..6b34979e4a 100644 --- a/activerecord/test/cases/collection_cache_key_test.rb +++ b/activerecord/test/cases/collection_cache_key_test.rb @@ -74,5 +74,10 @@ module ActiveRecord assert_match(/\Acomments\/query-(\h+)-0\Z/, empty_loaded_collection.cache_key) end + + test "cache_key for queries with offset which return 0 rows" do + developers = Developer.offset(20) + assert_match(/\Adevelopers\/query-(\h+)-0\Z/, developers.cache_key) + end end end |