diff options
Diffstat (limited to 'activerecord')
3 files changed, 19 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_handling.rb b/activerecord/lib/active_record/connection_handling.rb index 558cdeccf2..4a941055d1 100644 --- a/activerecord/lib/active_record/connection_handling.rb +++ b/activerecord/lib/active_record/connection_handling.rb @@ -158,6 +158,10 @@ module ActiveRecord end def with_handler(handler_key, &blk) # :nodoc: + unless ActiveRecord::Base.connection_handlers.keys.include?(handler_key) + raise ArgumentError, "The #{handler_key} role does not exist. Add it by establishing a connection with `connects_to` or use an existing role (#{ActiveRecord::Base.connection_handlers.keys.join(", ")})." + end + handler = lookup_connection_handler(handler_key) swap_connection_handler(handler, &blk) end diff --git a/activerecord/test/cases/connection_adapters/connection_handlers_multi_db_test.rb b/activerecord/test/cases/connection_adapters/connection_handlers_multi_db_test.rb index 79c2c4d827..0b3fb82e12 100644 --- a/activerecord/test/cases/connection_adapters/connection_handlers_multi_db_test.rb +++ b/activerecord/test/cases/connection_adapters/connection_handlers_multi_db_test.rb @@ -328,6 +328,16 @@ module ActiveRecord ensure ActiveRecord::Base.connection_handlers = original_handlers end + + def test_calling_connected_to_on_a_non_existent_handler_raises + error = assert_raises ArgumentError do + ActiveRecord::Base.connected_to(role: :reading) do + yield + end + end + + assert_equal "The reading role does not exist. Add it by establishing a connection with `connects_to` or use an existing role (writing).", error.message + end end end end diff --git a/activerecord/test/cases/query_cache_test.rb b/activerecord/test/cases/query_cache_test.rb index 2a7a5e736e..74d63c9995 100644 --- a/activerecord/test/cases/query_cache_test.rb +++ b/activerecord/test/cases/query_cache_test.rb @@ -56,6 +56,11 @@ class QueryCacheTest < ActiveRecord::TestCase end def test_query_cache_is_applied_to_connections_in_all_handlers + 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 |