diff options
Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/action_cable_overview.md | 6 | ||||
| -rw-r--r-- | guides/source/active_record_validations.md | 3 | ||||
| -rw-r--r-- | guides/source/configuring.md | 8 |
3 files changed, 13 insertions, 4 deletions
diff --git a/guides/source/action_cable_overview.md b/guides/source/action_cable_overview.md index e6c0ae31a8..2f602c3e0a 100644 --- a/guides/source/action_cable_overview.md +++ b/guides/source/action_cable_overview.md @@ -242,9 +242,9 @@ WebNotificationsChannel.broadcast_to( ``` The `WebNotificationsChannel.broadcast_to` call places a message in the current -subscription adapter (by default `redis` for production and `async` for development and -test environments)'s pubsub queue under a separate broadcasting name for each user. -For a user with an ID of 1, the broadcasting name would be `web_notifications:1`. +subscription adapter's pubsub queue under a separate broadcasting name for each user. +The default pubsub queue for Action Cable is `redis` in production and `async` in development and +test environments. For a user with an ID of 1, the broadcasting name would be `web_notifications:1`. The channel has been instructed to stream everything that arrives at `web_notifications:1` directly to the client by invoking the `received` diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md index c98f24d786..0fda7c5cfd 100644 --- a/guides/source/active_record_validations.md +++ b/guides/source/active_record_validations.md @@ -538,7 +538,8 @@ end If you want to be sure that an association is present, you'll need to test whether the associated object itself is present, and not the foreign key used -to map the association. +to map the association. This way, it is not only checked that the foreign key +is not empty but also that the referenced object exists. ```ruby class LineItem < ApplicationRecord diff --git a/guides/source/configuring.md b/guides/source/configuring.md index d03943ba4a..706964090e 100644 --- a/guides/source/configuring.md +++ b/guides/source/configuring.md @@ -379,6 +379,14 @@ The MySQL adapter adds one additional configuration option: * `ActiveRecord::ConnectionAdapters::Mysql2Adapter.emulate_booleans` controls whether Active Record will consider all `tinyint(1)` columns as booleans. Defaults to `true`. +The PostgreSQL adapter adds one additional configuration option: + +* `ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.create_unlogged_tables` + controls whether database tables created should be "unlogged," which can speed + up performance but adds a risk of data loss if the database crashes. It is + highly recommended that you do not enable this in a production environment. + Defaults to `false` in all environments. + The SQLite3Adapter adapter adds one additional configuration option: * `ActiveRecord::ConnectionAdapters::SQLite3Adapter.represent_boolean_as_integer` |