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active_record42.rb
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active_record42.rb
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# frozen_string_literal: true
module Bullet
module ActiveRecord
def self.enable
require 'active_record'
::ActiveRecord::Base.class_eval do
class << self
alias_method :origin_find, :find
def find(*args)
result = origin_find(*args)
if Bullet.start?
if result.is_a? Array
Bullet::Detector::NPlusOneQuery.add_possible_objects(result)
Bullet::Detector::CounterCache.add_possible_objects(result)
elsif result.is_a? ::ActiveRecord::Base
Bullet::Detector::NPlusOneQuery.add_impossible_object(result)
Bullet::Detector::CounterCache.add_impossible_object(result)
end
end
result
end
alias_method :origin_find_by_sql, :find_by_sql
def find_by_sql(sql, binds = [])
result = origin_find_by_sql(sql, binds)
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
end
::ActiveRecord::Persistence.class_eval do
def _create_record_with_bullet(*args)
_create_record_without_bullet(*args).tap { Bullet::Detector::NPlusOneQuery.add_impossible_object(self) }
end
alias_method_chain :_create_record, :bullet
end
::ActiveRecord::Relation.class_eval do
alias_method :origin_to_a, :to_a
# 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 to_a
records = origin_to_a
if Bullet.start?
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
end
::ActiveRecord::Associations::Preloader.class_eval do
alias_method :origin_preloaders_on, :preloaders_on
def preloaders_on(association, records, scope)
if Bullet.start?
records.compact!
if records.first.class.name !~ /^HABTM_/
records.each { |record| Bullet::Detector::Association.add_object_associations(record, association) }
Bullet::Detector::UnusedEagerLoading.add_eager_loadings(records, association)
end
end
origin_preloaders_on(association, records, scope)
end
end
::ActiveRecord::FinderMethods.class_eval do
# add includes in scope
alias_method :origin_find_with_associations, :find_with_associations
def find_with_associations
return origin_find_with_associations { |r| yield r } if block_given?
records = origin_find_with_associations
if Bullet.start?
associations = (eager_load_values + includes_values).uniq
records.each { |record| Bullet::Detector::Association.add_object_associations(record, associations) }
Bullet::Detector::UnusedEagerLoading.add_eager_loadings(records, associations)
end
records
end
end
::ActiveRecord::Associations::JoinDependency.class_eval do
alias_method :origin_instantiate, :instantiate
alias_method :origin_construct, :construct
alias_method :origin_construct_model, :construct_model
def instantiate(result_set, aliases)
@bullet_eager_loadings = {}
records = origin_instantiate(result_set, aliases)
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, rs, seen, model_cache, aliases)
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
Bullet::Detector::Association.add_object_associations(ar_parent, associations)
Bullet::Detector::NPlusOneQuery.call_association(ar_parent, associations)
@bullet_eager_loadings[ar_parent.class] ||= {}
@bullet_eager_loadings[ar_parent.class][ar_parent] ||= Set.new
@bullet_eager_loadings[ar_parent.class][ar_parent] << associations
end
end
end
origin_construct(ar_parent, parent, row, rs, seen, model_cache, aliases)
end
# call join associations
def construct_model(record, node, row, model_cache, id, aliases)
result = origin_construct_model(record, node, row, model_cache, id, aliases)
if Bullet.start?
associations = node.reflection.name
Bullet::Detector::Association.add_object_associations(record, associations)
Bullet::Detector::NPlusOneQuery.call_association(record, associations)
@bullet_eager_loadings[record.class] ||= {}
@bullet_eager_loadings[record.class][record] ||= Set.new
@bullet_eager_loadings[record.class][record] << associations
end
result
end
end
::ActiveRecord::Associations::CollectionAssociation.class_eval do
# call one to many associations
alias_method :origin_load_target, :load_target
def load_target
records = origin_load_target
if Bullet.start?
Bullet::Detector::NPlusOneQuery.call_association(@owner, @reflection.name) unless @inversed
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
alias_method :origin_empty?, :empty?
def empty?
if Bullet.start? && !has_cached_counter?(@reflection)
Bullet::Detector::NPlusOneQuery.call_association(@owner, @reflection.name)
end
origin_empty?
end
alias_method :origin_include?, :include?
def include?(object)
Bullet::Detector::NPlusOneQuery.call_association(@owner, @reflection.name) if Bullet.start?
origin_include?(object)
end
end
::ActiveRecord::Associations::SingularAssociation.class_eval do
# call has_one and belongs_to associations
alias_method :origin_reader, :reader
def reader(force_reload = false)
result = origin_reader(force_reload)
if Bullet.start?
if @owner.class.name !~ /^HABTM_/ && !@inversed
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.class_eval do
alias_method :origin_many_empty?, :empty?
def empty?
result = origin_many_empty?
if Bullet.start? && !has_cached_counter?(@reflection)
Bullet::Detector::NPlusOneQuery.call_association(@owner, @reflection.name)
end
result
end
alias_method :origin_count_records, :count_records
def count_records
result = has_cached_counter?
Bullet::Detector::CounterCache.add_counter_cache(@owner, @reflection.name) if Bullet.start? && !result
origin_count_records
end
end
end
end
end