blob: 41c3af339092b5120505c622a6a52f615e595f08 (
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
|
# frozen_string_literal: true
module Gitlab
module Graphql
module Loaders
class BatchModelLoader
attr_reader :model_class, :model_id, :preloads
def initialize(model_class, model_id, preloads = nil)
@model_class = model_class
@model_id = model_id
@preloads = preloads || []
end
# rubocop: disable CodeReuse/ActiveRecord
def find
BatchLoader::GraphQL.for([model_id.to_i, preloads]).batch(key: model_class) do |for_params, loader, args|
model = args[:key]
keys_by_id = for_params.group_by(&:first)
ids = for_params.map(&:first)
preloads = for_params.flat_map(&:second).uniq
results = model.where(id: ids)
results = results.preload(*preloads) unless preloads.empty?
results.each do |record|
keys_by_id.fetch(record.id, []).each { |k| loader.call(k, record) }
end
end
end
# rubocop: enable CodeReuse/ActiveRecord
end
end
end
end
|
