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
|
# frozen_string_literal: true
module OptimizedIssuableLabelFilter
def by_label(items)
return items unless params.labels?
return super if Feature.disabled?(:optimized_issuable_label_filter)
target_model = items.model
if params.filter_by_no_label?
items.where('NOT EXISTS (?)', optimized_any_label_query(target_model))
elsif params.filter_by_any_label?
items.where('EXISTS (?)', optimized_any_label_query(target_model))
else
issuables_with_selected_labels(items, target_model)
end
end
# Taken from IssuableFinder
def count_by_state
return super if root_namespace.nil?
return super if Feature.disabled?(:optimized_issuable_label_filter)
count_params = params.merge(state: nil, sort: nil, force_cte: true)
finder = self.class.new(current_user, count_params)
state_counts = finder
.execute
.reorder(nil)
.group(:state_id)
.count
counts = state_counts.transform_keys { |key| count_key(key) }
counts[:all] = counts.values.sum
counts.with_indifferent_access
end
private
def issuables_with_selected_labels(items, target_model)
if root_namespace
all_label_ids = find_label_ids(root_namespace)
# Found less labels in the DB than we were searching for. Return nothing.
return items.none if all_label_ids.size != params.label_names.size
all_label_ids.each do |label_ids|
items = items.where('EXISTS (?)', optimized_label_query_by_label_ids(target_model, label_ids))
end
else
params.label_names.each do |label_name|
items = items.where('EXISTS (?)', optimized_label_query_by_label_name(target_model, label_name))
end
end
items
end
def find_label_ids(root_namespace)
finder_params = {
include_subgroups: true,
include_ancestor_groups: true,
include_descendant_groups: true,
group: root_namespace,
title: params.label_names
}
LabelsFinder
.new(nil, finder_params)
.execute(skip_authorization: true)
.pluck(:title, :id)
.group_by(&:first)
.values
.map { |labels| labels.map(&:last) }
end
def root_namespace
strong_memoize(:root_namespace) do
(params.project || params.group)&.root_ancestor
end
end
def optimized_any_label_query(target_model)
LabelLink
.where(target_type: target_model.name)
.where(LabelLink.arel_table['target_id'].eq(target_model.arel_table['id']))
.limit(1)
end
def optimized_label_query_by_label_ids(target_model, label_ids)
LabelLink
.where(target_type: target_model.name)
.where(LabelLink.arel_table['target_id'].eq(target_model.arel_table['id']))
.where(label_id: label_ids)
.limit(1)
end
def optimized_label_query_by_label_name(target_model, label_name)
LabelLink
.joins(:label)
.where(target_type: target_model.name)
.where(LabelLink.arel_table['target_id'].eq(target_model.arel_table['id']))
.where(labels: { name: label_name })
.limit(1)
end
end
|
