add support for rails 8

lib/bullet/active_record80.rb

@@ -0,0 +1,318 @@
+# frozen_string_literal: true
+
+module Bullet
+  module SaveWithBulletSupport
+    def _create_record(*)
+      super do
+        Bullet::Detector::NPlusOneQuery.add_impossible_object(self)
+        yield(self) if block_given?
+      end
+    end
+  end
+
+  module ActiveRecord
+    def self.enable
+      require 'active_record'
+      ::ActiveRecord::Base.extend(
+        Module.new do
+          def find_by_sql(sql, binds = [], preparable: nil, allow_retry: false, &block)
+            result = super
+            if Bullet.start?
+              if result.is_a? Array
+                if result.size > 1
+                  Bullet::Detector::NPlusOneQuery.add_possible_objects(result)
+                  Bullet::Detector::CounterCache.add_possible_objects(result)
+                elsif result.size == 1
+                  Bullet::Detector::NPlusOneQuery.add_impossible_object(result.first)
+                  Bullet::Detector::CounterCache.add_impossible_object(result.first)
+                end
+              elsif result.is_a? ::ActiveRecord::Base
+                Bullet::Detector::NPlusOneQuery.add_impossible_object(result)
+                Bullet::Detector::CounterCache.add_impossible_object(result)
+              end
+            end
+            result
+          end
+        end
+      )
+
+      ::ActiveRecord::Base.prepend(SaveWithBulletSupport)
+
+      ::ActiveRecord::Relation.prepend(
+        Module.new do
+          # if select a collection of objects, then these objects have possible to cause N+1 query.
+          # if select only one object, then the only one object has impossible to cause N+1 query.
+          def records
+            result = super
+            if Bullet.start?
+              if result.first.class.name !~ /^HABTM_/
+                if result.size > 1
+                  Bullet::Detector::NPlusOneQuery.add_possible_objects(result)
+                  Bullet::Detector::CounterCache.add_possible_objects(result)
+                elsif result.size == 1
+                  Bullet::Detector::NPlusOneQuery.add_impossible_object(result.first)
+                  Bullet::Detector::CounterCache.add_impossible_object(result.first)
+                end
+              end
+            end
+            result
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::Preloader::Batch.prepend(
+        Module.new do
+          def call
+            if Bullet.start?
+              @preloaders.each do |preloader|
+                preloader.records.each { |record|
+                  Bullet::Detector::Association.add_object_associations(record, preloader.associations)
+                }
+                Bullet::Detector::UnusedEagerLoading.add_eager_loadings(preloader.records, preloader.associations)
+              end
+            end
+            super
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::Preloader::Branch.prepend(
+        Module.new do
+          def preloaders_for_reflection(reflection, reflection_records)
+            if Bullet.start?
+              reflection_records.compact!
+              if reflection_records.first.class.name !~ /^HABTM_/
+                reflection_records.each { |record|
+                  Bullet::Detector::Association.add_object_associations(record, reflection.name)
+                }
+                Bullet::Detector::UnusedEagerLoading.add_eager_loadings(reflection_records, reflection.name)
+              end
+            end
+            super
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::Preloader::ThroughAssociation.prepend(
+        Module.new do
+          def source_preloaders
+            if Bullet.start? && !defined?(@source_preloaders)
+              preloaders = super
+              preloaders.each do |preloader|
+                reflection_name = preloader.send(:reflection).name
+                preloader.send(:owners).each do |owner|
+                  Bullet::Detector::NPlusOneQuery.call_association(owner, reflection_name)
+                end
+              end
+            else
+              super
+            end
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::JoinDependency.prepend(
+        Module.new do
+          def instantiate(result_set, strict_loading_value, &block)
+            @bullet_eager_loadings = {}
+            records = super
+
+            if Bullet.start?
+              @bullet_eager_loadings.each do |_klazz, eager_loadings_hash|
+                objects = eager_loadings_hash.keys
+                Bullet::Detector::UnusedEagerLoading.add_eager_loadings(
+                  objects,
+                  eager_loadings_hash[objects.first].to_a
+                )
+              end
+            end
+            records
+          end
+
+          def construct(ar_parent, parent, row, seen, model_cache, strict_loading_value)
+            if Bullet.start?
+              unless ar_parent.nil?
+                parent.children.each do |node|
+                  key = aliases.column_alias(node, node.primary_key)
+                  id = row[key]
+                  next unless id.nil?
+
+                  associations = [node.reflection.name]
+                  if node.reflection.through_reflection?
+                    associations << node.reflection.through_reflection.name
+                  end
+                  associations.each do |association|
+                    Bullet::Detector::Association.add_object_associations(ar_parent, association)
+                    Bullet::Detector::NPlusOneQuery.call_association(ar_parent, association)
+                    @bullet_eager_loadings[ar_parent.class] ||= {}
+                    @bullet_eager_loadings[ar_parent.class][ar_parent] ||= Set.new
+                    @bullet_eager_loadings[ar_parent.class][ar_parent] << association
+                  end
+                end
+              end
+            end
+
+            super
+          end
+
+          # call join associations
+          def construct_model(record, node, row, model_cache, id, strict_loading_value)
+            result = super
+
+            if Bullet.start?
+              associations = [node.reflection.name]
+              if node.reflection.through_reflection?
+                associations << node.reflection.through_reflection.name
+              end
+              associations.each do |association|
+                Bullet::Detector::Association.add_object_associations(record, association)
+                Bullet::Detector::NPlusOneQuery.call_association(record, association)
+                @bullet_eager_loadings[record.class] ||= {}
+                @bullet_eager_loadings[record.class][record] ||= Set.new
+                @bullet_eager_loadings[record.class][record] << association
+              end
+            end
+
+            result
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::Association.prepend(
+        Module.new do
+          def inversed_from(record)
+            if Bullet.start?
+              Bullet::Detector::NPlusOneQuery.add_inversed_object(owner, reflection.name)
+            end
+            super
+          end
+
+          def inversed_from_queries(record)
+            if Bullet.start? && inversable?(record)
+              Bullet::Detector::NPlusOneQuery.add_inversed_object(owner, reflection.name)
+            end
+            super
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::CollectionAssociation.prepend(
+        Module.new do
+          def load_target
+            records = super
+
+            if Bullet.start?
+              if is_a? ::ActiveRecord::Associations::ThroughAssociation
+                association = owner.association(reflection.through_reflection.name)
+                if association.loaded?
+                  Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.through_reflection.name)
+                  Array.wrap(association.target).each do |through_record|
+                    Bullet::Detector::NPlusOneQuery.call_association(through_record, source_reflection.name)
+                  end
+
+                  if reflection.through_reflection != through_reflection
+                    Bullet::Detector::NPlusOneQuery.call_association(owner, through_reflection.name)
+                  end
+                end
+              end
+              Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.name)
+              if records.first.class.name !~ /^HABTM_/
+                if records.size > 1
+                  Bullet::Detector::NPlusOneQuery.add_possible_objects(records)
+                  Bullet::Detector::CounterCache.add_possible_objects(records)
+                elsif records.size == 1
+                  Bullet::Detector::NPlusOneQuery.add_impossible_object(records.first)
+                  Bullet::Detector::CounterCache.add_impossible_object(records.first)
+                end
+              end
+            end
+            records
+          end
+
+          def empty?
+            if Bullet.start? && !reflection.has_cached_counter?
+              Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.name)
+            end
+            super
+          end
+
+          def include?(object)
+            Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.name) if Bullet.start?
+            super
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::SingularAssociation.prepend(
+        Module.new do
+          # call has_one and belongs_to associations
+          def reader
+            result = super
+
+            if Bullet.start?
+              if owner.class.name !~ /^HABTM_/
+                if is_a? ::ActiveRecord::Associations::ThroughAssociation
+                  Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.through_reflection.name)
+                  association = owner.association(reflection.through_reflection.name)
+                  Array.wrap(association.target).each do |through_record|
+                    Bullet::Detector::NPlusOneQuery.call_association(through_record, source_reflection.name)
+                  end
+
+                  if reflection.through_reflection != through_reflection
+                    Bullet::Detector::NPlusOneQuery.call_association(owner, through_reflection.name)
+                  end
+                end
+                Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.name)
+
+                if Bullet::Detector::NPlusOneQuery.impossible?(owner)
+                  Bullet::Detector::NPlusOneQuery.add_impossible_object(result) if result
+                else
+                  Bullet::Detector::NPlusOneQuery.add_possible_objects(result) if result
+                end
+              end
+            end
+            result
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::HasManyAssociation.prepend(
+        Module.new do
+          def empty?
+            result = super
+            if Bullet.start? && !reflection.has_cached_counter?
+              Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.name)
+            end
+            result
+          end
+
+          def count_records
+            result = reflection.has_cached_counter?
+            if Bullet.start? && !result && !is_a?(::ActiveRecord::Associations::ThroughAssociation)
+              Bullet::Detector::CounterCache.add_counter_cache(owner, reflection.name)
+            end
+            super
+          end
+        end
+      )
+
+      ::ActiveRecord::Associations::CollectionProxy.prepend(
+        Module.new do
+          def count(column_name = nil)
+            if Bullet.start? && !proxy_association.is_a?(::ActiveRecord::Associations::ThroughAssociation)
+              Bullet::Detector::CounterCache.add_counter_cache(
+                proxy_association.owner,
+                proxy_association.reflection.name
+              )
+              Bullet::Detector::NPlusOneQuery.call_association(
+                proxy_association.owner,
+                proxy_association.reflection.name
+              )
+            end
+            super(column_name)
+          end
+        end
+      )
+    end
+  end
+end

lib/bullet/dependency.rb

@@ -35,6 +35,8 @@ def active_record_version
             'active_record71'
           elsif active_record72?
             'active_record72'
+          elsif active_record80?
+            'active_record80'
           else
             raise "Bullet does not support active_record #{::ActiveRecord::VERSION::STRING} yet"
           end
@@ -76,6 +78,10 @@ def active_record7?
       active_record? && ::ActiveRecord::VERSION::MAJOR == 7
     end
 
+    def active_record8?
+      active_record? && ::ActiveRecord::VERSION::MAJOR == 8
+    end
+
     def active_record40?
       active_record4? && ::ActiveRecord::VERSION::MINOR == 0
     end
@@ -120,6 +126,10 @@ def active_record72?
       active_record7? && ::ActiveRecord::VERSION::MINOR == 2
     end
 
+    def active_record80?
+      active_record8? && ::ActiveRecord::VERSION::MINOR == 0
+    end
+
     def mongoid4x?
       mongoid? && ::Mongoid::VERSION =~ /\A4/
     end