Rails 7 adds ComparisonValidator to compare and validate numeric, date and string values. It provides comparisons options that accept value, procs, or symbol.

In Rails, multiple scopes can be created and chained together. What if we wish to apply a specific scope to a group of queries? Consider the following scenario: we have Post and Comment models and we want to perform few operations on public posts. # app/models/post.rb class Post < ActiveRecord::Base scope :public, -> { where(private: false) } endLoading development environment (Rails 7.0.0.alpha2) 3.0.0 :001 > Post.public.update_all(body: 'public post') Post Update All (4.1ms) UPDATE "posts" SET "body" = ? WHERE "posts"."private" = ? [["body", "public post"], ["private", 0]] 3.0.0