From 183c0eb472a33e4f1f2cd9502f238d4b6027f887 Mon Sep 17 00:00:00 2001 From: Eileen Uchitelle Date: Tue, 29 Jan 2019 13:18:58 -0500 Subject: Invalidate query cache for all connections in the current thread This change ensures that all query cahces are cleared across all connections per handler for the current thread so if you write on one connection the read will have the query cache cleared. --- activerecord/test/cases/query_cache_test.rb | 38 +++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'activerecord/test') diff --git a/activerecord/test/cases/query_cache_test.rb b/activerecord/test/cases/query_cache_test.rb index 04bbc7d136..eb32b690aa 100644 --- a/activerecord/test/cases/query_cache_test.rb +++ b/activerecord/test/cases/query_cache_test.rb @@ -502,6 +502,44 @@ class QueryCacheTest < ActiveRecord::TestCase }.call({}) end + def test_clear_query_cache_is_called_on_all_connections + skip "with in memory db, reading role won't be able to see database on writing role" if in_memory_db? + with_temporary_connection_pool do + ActiveRecord::Base.connection_handlers = { + writing: ActiveRecord::Base.default_connection_handler, + reading: ActiveRecord::ConnectionAdapters::ConnectionHandler.new + } + + ActiveRecord::Base.connected_to(role: :reading) do + ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations["arunit"]) + end + + mw = middleware { |env| + ActiveRecord::Base.connected_to(role: :reading) do + @topic = Topic.first + end + + assert @topic + + ActiveRecord::Base.connected_to(role: :writing) do + @topic.title = "It doesn't have to be crazy at work" + @topic.save! + end + + assert_equal "It doesn't have to be crazy at work", @topic.title + + ActiveRecord::Base.connected_to(role: :reading) do + @topic = Topic.first + assert_equal "It doesn't have to be crazy at work", @topic.title + end + } + + mw.call({}) + end + ensure + ActiveRecord::Base.connection_handlers = { writing: ActiveRecord::Base.default_connection_handler } + end + private def with_temporary_connection_pool -- cgit v1.2.3