diff options
| -rw-r--r-- | activerecord/lib/active_record/core.rb | 7 | ||||
| -rw-r--r-- | activerecord/test/cases/statement_cache_test.rb | 12 |
2 files changed, 16 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 86ec8000fb..c8343dd97f 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -136,7 +136,7 @@ module ActiveRecord end def initialize_find_by_cache # :nodoc: - @find_by_statement_cache = {}.extend(Mutex_m) + @find_by_statement_cache = { true => {}.extend(Mutex_m), false => {}.extend(Mutex_m) } end def inherited(child_class) # :nodoc: @@ -280,8 +280,9 @@ module ActiveRecord private def cached_find_by_statement(key, &block) # :nodoc: - @find_by_statement_cache[key] || @find_by_statement_cache.synchronize { - @find_by_statement_cache[key] ||= StatementCache.create(connection, &block) + cache = @find_by_statement_cache[connection.prepared_statements] + cache[key] || cache.synchronize { + cache[key] ||= StatementCache.create(connection, &block) } end diff --git a/activerecord/test/cases/statement_cache_test.rb b/activerecord/test/cases/statement_cache_test.rb index a704b861cb..104226010a 100644 --- a/activerecord/test/cases/statement_cache_test.rb +++ b/activerecord/test/cases/statement_cache_test.rb @@ -94,5 +94,17 @@ module ActiveRecord additional_books = cache.execute([], Book, Book.connection) assert first_books != additional_books end + + def test_unprepared_statements_dont_share_a_cache_with_prepared_statements + Book.create(name: "my book") + Book.create(name: "my other book") + + book = Book.find_by(name: "my book") + other_book = Book.connection.unprepared_statement do + Book.find_by(name: "my other book") + end + + refute_equal book, other_book + end end end |