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-rw-r--r--guides/source/configuring.md20
1 files changed, 17 insertions, 3 deletions
diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index a0f0738fba..13020fb286 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -330,6 +330,8 @@ The schema dumper adds one additional configuration option:
* `config.action_controller.action_on_unpermitted_parameters` enables logging or raising an exception if parameters that are not explicitly permitted are found. Set to `:log` or `:raise` to enable. The default value is `:log` in development and test environments, and `false` in all other environments.
+* `config.action_controller.always_permitted_parameters` sets a list of whitelisted parameters that are permitted by default. The default values are `['controller', 'action']`.
+
### Configuring Action Dispatch
* `config.action_dispatch.session_store` sets the name of the store for session data. The default is `:cookie_store`; other valid options include `:active_record_store`, `:mem_cache_store` or the name of your own custom class.
@@ -451,6 +453,18 @@ There are a number of settings available on `config.action_mailer`:
config.action_mailer.interceptors = ["MailInterceptor"]
```
+* `config.action_mailer.preview_path` specifies the location of mailer previews.
+
+ ```ruby
+ config.action_mailer.preview_path = "#{Rails.root}/lib/mailer_previews"
+ ```
+
+* `config.action_mailer.show_previews` enable or disable mailer previews. By default this is `true` in development.
+
+ ```ruby
+ config.action_mailer.show_previews = false
+ ```
+
### Configuring Active Support
There are a few configuration options available in Active Support:
@@ -552,7 +566,7 @@ development:
$ echo $DATABASE_URL
postgresql://localhost/my_database
-$ bin/rails runner 'puts ActiveRecord::Base.connections'
+$ bin/rails runner 'puts ActiveRecord::Base.configurations'
{"development"=>{"adapter"=>"postgresql", "host"=>"localhost", "database"=>"my_database"}}
```
@@ -569,7 +583,7 @@ development:
$ echo $DATABASE_URL
postgresql://localhost/my_database
-$ bin/rails runner 'puts ActiveRecord::Base.connections'
+$ bin/rails runner 'puts ActiveRecord::Base.configurations'
{"development"=>{"adapter"=>"postgresql", "host"=>"localhost", "database"=>"my_database", "pool"=>5}}
```
@@ -585,7 +599,7 @@ development:
$ echo $DATABASE_URL
postgresql://localhost/my_database
-$ bin/rails runner 'puts ActiveRecord::Base.connections'
+$ bin/rails runner 'puts ActiveRecord::Base.configurations'
{"development"=>{"adapter"=>"sqlite3", "database"=>"NOT_my_database"}}
```