-
Notifications
You must be signed in to change notification settings - Fork 423
/
active_record52.rb
251 lines (225 loc) · 9.33 KB
/
active_record52.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
# 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, &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.prepend(
Module.new do
def preloaders_for_one(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
super
end
end
)
::ActiveRecord::FinderMethods.prepend(
Module.new do
# add includes in scope
def find_with_associations
return super { |r| yield r } if block_given?
records = super
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.prepend(
Module.new do
def instantiate(result_set, &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, 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
super
end
# call join associations
def construct_model(record, node, row, model_cache, id, aliases)
result = super
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.prepend(
Module.new do
def load_target
records = super
if Bullet.start?
if is_a? ::ActiveRecord::Associations::ThroughAssociation
Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.through_reflection.name)
association = owner.association reflection.through_reflection.name
Array(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) 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
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 target
result = super()
if Bullet.start?
if owner.class.name !~ /^HABTM_/ && !@inversed
if is_a? ::ActiveRecord::Associations::ThroughAssociation
Bullet::Detector::NPlusOneQuery.call_association(owner, reflection.through_reflection.name)
association = owner.association reflection.through_reflection.name
Array(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
)
end
end
end