blob: 9a5a95403adb839f0a34d6a152e17aa041d8ec97 (
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
47
|
# frozen_string_literal: true
module Kaminari
# Active Record specific page scope methods implementations
module ActiveRecordRelationMethodsWithLimit
MAX_COUNT_LIMIT = 10_000
MAX_COUNT_NEW_LOWER_LIMIT = 1_000
# This is a modified version of
# https://github.com/kaminari/kaminari/blob/c5186f5d9b7f23299d115408e62047447fd3189d/kaminari-activerecord/lib/kaminari/activerecord/active_record_relation_methods.rb#L17-L41
# that limit the COUNT query to a configurable value to avoid query timeouts.
# The default limit value is 10,000 records
# rubocop: disable Gitlab/ModuleWithInstanceVariables
def total_count_with_limit(column_name = :all, options = {}) #:nodoc:
return @total_count if defined?(@total_count) && @total_count
# There are some cases that total count can be deduced from loaded records
if loaded?
# Total count has to be 0 if loaded records are 0
return @total_count = 0 if (current_page == 1) && @records.empty?
# Total count is calculable at the last page
return @total_count = (current_page - 1) * limit_value + @records.length if @records.any? && (@records.length < limit_value)
end
max_limit = Feature.enabled?(:lower_relation_max_count_limit, type: :ops) ? MAX_COUNT_NEW_LOWER_LIMIT : MAX_COUNT_LIMIT
limit = options.fetch(:limit, max_limit).to_i
# #count overrides the #select which could include generated columns referenced in #order, so skip #order here, where it's irrelevant to the result anyway
c = except(:offset, :limit, :order)
# Remove includes only if they are irrelevant
c = c.except(:includes) unless references_eager_loaded_tables?
# .group returns an OrderedHash that responds to #count
# The following line was modified from `c = c.count(:all)`
c = c.limit(limit + 1).count(column_name)
@total_count =
if c.is_a?(Hash) || c.is_a?(ActiveSupport::OrderedHash)
c.count
elsif c.respond_to? :count
c.count(column_name)
else
c
end
end
# rubocop: enable Gitlab/ModuleWithInstanceVariables
Kaminari::ActiveRecordRelationMethods.prepend(self)
end
end
|
