blob: db12965224b39cba4da1dd4bc77bd5782efb9867 (
plain)
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
|
# frozen_string_literal: true
module Todos
module Destroy
class DestroyedIssuableService
BATCH_SIZE = 100
def initialize(target_id, target_type)
@target_id = target_id
@target_type = target_type
end
def execute
inner_query = Todo.select(:id).for_target(target_id).for_type(target_type).limit(BATCH_SIZE)
delete_query = <<~SQL
DELETE FROM "#{Todo.table_name}"
WHERE id IN (#{inner_query.to_sql})
RETURNING user_id
SQL
loop do
result = ActiveRecord::Base.connection.execute(delete_query)
break if result.cmd_tuples == 0
user_ids = result.map { |row| row['user_id'] }.uniq
invalidate_todos_cache_counts(user_ids)
end
end
private
attr_reader :target_id, :target_type
def invalidate_todos_cache_counts(user_ids)
user_ids.each do |id|
# Only build a user instance since we only need its ID for
# `User#invalidate_todos_cache_counts` to work.
User.new(id: id).invalidate_todos_cache_counts
end
end
end
end
end
|