Rails provides the has_secure_password method, which makes it gloriously easy to implement authentication in our application. But we often need an extra layer of verification before allowing users to update certain fields. For e.g. Users must provide their “old” password when updating their email/password fields. Before Rails 7.1To implement this, we must manually add and validate the current_password accessor: # app/models/user.rb class User < ActiveRecord::Base has_secure_password attr_accessor :current_password end# app/controllers/passwords_controller.rb class PasswordsController < ApplicationController def update password_challenge = password_params.delete(:current_password)

Ruby adds Fiber SchedulerInterface to support non-blocking fiber. Splitting long operations into fiber hooks and Scheduler will manage it for us.

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