diff options
Diffstat (limited to 'guides/source/autoloading_and_reloading_constants.md')
| -rw-r--r-- | guides/source/autoloading_and_reloading_constants.md | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/guides/source/autoloading_and_reloading_constants.md b/guides/source/autoloading_and_reloading_constants.md index c6149abcba..246fde69d5 100644 --- a/guides/source/autoloading_and_reloading_constants.md +++ b/guides/source/autoloading_and_reloading_constants.md @@ -181,14 +181,14 @@ constant. That is, ```ruby -class Project < ActiveRecord::Base +class Project < ApplicationRecord end ``` performs a constant assignment equivalent to ```ruby -Project = Class.new(ActiveRecord::Base) +Project = Class.new(ApplicationRecord) ``` including setting the name of the class as a side-effect: @@ -466,9 +466,7 @@ by adding this to `config/application.rb`: config.autoload_paths << "#{Rails.root}/lib" ``` -`config.autoload_paths` is accessible from environment-specific configuration -files, but any changes made to it outside `config/application.rb` don't have any -effect. +`config.autoload_paths` is not changeable from environment-specific configuration files. The value of `autoload_paths` can be inspected. In a just generated application it is (edited): @@ -526,7 +524,7 @@ On the contrary, if `ApplicationController` is unknown, the constant is considered missing and an autoload is going to be attempted by Rails. In order to load `ApplicationController`, Rails iterates over `autoload_paths`. -First checks if `app/assets/application_controller.rb` exists. If it does not, +First it checks if `app/assets/application_controller.rb` exists. If it does not, which is normally the case, it continues and finds `app/controllers/application_controller.rb`. @@ -626,7 +624,7 @@ file is loaded. If the file actually defines `Post` all is fine, otherwise ### Qualified References When a qualified constant is missing Rails does not look for it in the parent -namespaces. But there is a caveat: When a constant is missing, Rails is +namespaces. But there is a caveat: when a constant is missing, Rails is unable to tell if the trigger was a relative reference or a qualified one. For example, consider @@ -687,7 +685,7 @@ to trigger the heuristic is defined in the conflicting place. ### Automatic Modules When a module acts as a namespace, Rails does not require the application to -defines a file for it, a directory matching the namespace is enough. +define a file for it, a directory matching the namespace is enough. Suppose an application has a back office whose controllers are stored in `app/controllers/admin`. If the `Admin` module is not yet loaded when @@ -792,7 +790,7 @@ Constant Reloading When `config.cache_classes` is false Rails is able to reload autoloaded constants. -For example, in you're in a console session and edit some file behind the +For example, if you're in a console session and edit some file behind the scenes, the code can be reloaded with the `reload!` command: ``` @@ -914,7 +912,7 @@ these classes: ```ruby # app/models/polygon.rb -class Polygon < ActiveRecord::Base +class Polygon < ApplicationRecord end # app/models/triangle.rb @@ -989,7 +987,7 @@ root class: ```ruby # app/models/polygon.rb -class Polygon < ActiveRecord::Base +class Polygon < ApplicationRecord end require_dependency ‘square’ ``` |