Added Rails/DestroyAllBang

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 # main
 
+* Added cop `Rails/DestroyAllBang`(Fix [#42](https://github.com/petalmd/rubocop-petal/issues/42)). ([#65](https://github.com/petalmd/rubocop-petal/pull/65))
 * Added cop `Chewy/FieldType`. ([#64](https://github.com/petalmd/rubocop-petal/pull/64))
 * Fix `Migration/ChangeTableReferences` offense location (Fix [#61](https://github.com/petalmd/rubocop-petal/issues/61)) ([#62](https://github.com/petalmd/rubocop-petal/pull/62))
 * Added cop `Sidekiq/NoEarlyNilReturn` ([#58](https://github.com/petalmd/rubocop-petal/pull/58))

config/default.yml

@@ -80,6 +80,11 @@ Grape/UnnecessaryNamespace:
   Include:
     - app/api/**/*
 
+Rails/DestroyAllBang:
+  Description: 'Prevent using `destroy_all` in favor of `each(&:destroy!)` to go along Rails/SaveBang cop.'
+  StyleGuide: https://rails.rubystyle.guide#save-bang
+  Enabled: true
+
 Rails/EnumPrefix:
   Description: 'Set prefix options when using enums.'
   Enabled: true

lib/rubocop/cop/rails/destroy_all_bang.rb

@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+module RuboCop
+  module Cop
+    module Rails
+      # Cop to enforce the use of `each(&:destroy!)` over `destroy_all`.
+      # https://docs.rubocop.org/rubocop-rails/cops_rails.html#railssavebang
+      # https://github.com/rails/rails/pull/37782
+      # https://discuss.rubyonrails.org/t/proposal-add-destroy-all-method-to-activerecord-relation/80959
+      #
+      #   # bad
+      #   User.destroy_all
+      #
+      #   # good
+      #   User.each(&:destroy!)
+      class DestroyAllBang < Base
+        extend AutoCorrector
+        MSG = 'Use `each(&:destroy!)` instead of `destroy_all`.'
+        RESTRICT_ON_SEND = %i[destroy_all].freeze
+
+        def on_send(node)
+          destroy_all_range = node.loc.selector
+          add_offense(destroy_all_range) do |corrector|
+            corrector.replace(node.loc.selector, 'each(&:destroy!)')
+          end
+        end
+      end
+    end
+  end
+end

spec/rubocop/cop/rails/destroy_all_bang_spec.rb

@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+RSpec.describe RuboCop::Cop::Rails::DestroyAllBang, :config do
+  it 'registers an offense when using `destroy_all`' do
+    expect_offense(<<~RUBY)
+      User.destroy_all
+           ^^^^^^^^^^^ Use `each(&:destroy!)` instead of `destroy_all`.
+    RUBY
+
+    expect_correction(<<~RUBY)
+      User.each(&:destroy!)
+    RUBY
+
+    expect_offense(<<~RUBY)
+      User.where(desactivated: true).destroy_all
+                                     ^^^^^^^^^^^ Use `each(&:destroy!)` instead of `destroy_all`.
+    RUBY
+
+    expect_correction(<<~RUBY)
+      User.where(desactivated: true).each(&:destroy!)
+    RUBY
+
+    expect_offense(<<~RUBY)
+      User
+        .where(desactivated: true)
+        .destroy_all
+         ^^^^^^^^^^^ Use `each(&:destroy!)` instead of `destroy_all`.
+    RUBY
+
+    expect_correction(<<~RUBY)
+      User
+        .where(desactivated: true)
+        .each(&:destroy!)
+    RUBY
+  end
+
+  it 'does not register an offense when using `#each(&:destroy!)`' do
+    expect_no_offenses(<<~RUBY)
+      User.each(&:destroy!)
+    RUBY
+  end
+end