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https://stackoverflow.com/questions/7929946/using-rails-presenters-memoizable-getting-deprecated-in-3-1-use-instead
Anyway they gave the info on memoization, said how ActiveSupport options was best and yet their actual code challenge say "ActiveSupport::Memoizable (note: ActiveSupport::Memoizable is deprecated in Rails 3.1)" ! so still not sure about that and if it gets deprecated is that because the above issues would be resolved, etc..
https://guides.rubyonrails.org/3_2_release_notes.html
Ruby on Rails 3.2 Release NotesHighlights in Rails 3.2: Faster Development Mode New Routing Engine Automatic Query Explains Tagged Logging These release notes cover only the major changes. To learn about various bug fixes and changes, please refer to the change logs or check out the list of commits in the main Rails repository on GitHub.
https://apidock.com/rails/ActiveSupport/Memoizable
Module deprecated or moved. This module is deprecated or moved on the latest stable version. The last existing version (v3.2.13) is shown here.
https://github.com/rails/rails/commit/36253916b0b788d6ded56669d37c96ed05c92c5c
Jun 15, 2011 · Deprecate memoizable. Loading branch information; josevalim committed Jun 15, ... This is being removed because during the Rails 3 refactoring we have removed almost all occurrences of Memoizable for the simpler ruby ... ActiveSupport::Memoizable is deprecated and will be removed in future releases,simply use Ruby memoization pattern instead. ` ...
https://apidock.com/rails/ActiveSupport/Memoizable/memoize
Need to extend class when using this. I had to dig around to find this out - if you want to use memoize somewhere, like an ActiveRecord model, you need to add. extend ActiveSupport:: Memoizable. to the class. This doesn’t seem to be explained anywhere (the only docs are 3 year old blog posts anyway).
https://apidock.com/rails/ActiveSupport/memoize
Remember to mixin the ActiveSupport::Memoizable module. To use memoize in your model you need to extend the model class with the module, like this: class Person < ActiveRecord:: Base # Mixin the module extend ActiveSupport:: Memoizable def expensive_method # do something that is worth remembering end memoize:expensive_method end
https://api.rubyonrails.org/classes/ActiveSupport/Deprecation.html
Deprecation specifies the API used by Rails to deprecate methods, instance variables, objects and constants. ... The version number in which the deprecated behavior will be removed, by default. Class Public methods. new ... The first is a version of library and the second is a library name. ActiveSupport::Deprecation.new('2.0', 'MyLibrary')
https://guides.rubyonrails.org/2_2_release_notes.html
Ruby on Rails 2.2 Release NotesRails 2.2 delivers a number of new and improved features. This list covers the major upgrades, but doesn't include every little bug fix and change. If you want to see everything, check out the list of commits in the main Rails repository on GitHub.Along with Rails, 2.2 marks the launch of the Ruby on Rails Guides, the first results of the ongoing Rails Guides ...
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