blob: 8741aa0f1c43f034679e7b92a81a9666655e13ef (
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
|
module Gitlab
module SQL
module Pattern
extend ActiveSupport::Concern
MIN_CHARS_FOR_PARTIAL_MATCHING = 3
REGEX_QUOTED_WORD = /(?<=^| )"[^"]+"(?= |$)/
class_methods do
def to_pattern(query)
if partial_matching?(query)
"%#{sanitize_sql_like(query)}%"
else
sanitize_sql_like(query)
end
end
def partial_matching?(query)
query.length >= MIN_CHARS_FOR_PARTIAL_MATCHING
end
def fuzzy_arel_match(column, query)
words = select_fuzzy_words(query)
matches = words.map { |word| arel_table[column].matches(to_pattern(word)) }
matches.reduce { |result, match| result.and(match) }
end
def select_fuzzy_words(query)
quoted_words = query.scan(REGEX_QUOTED_WORD)
query = quoted_words.reduce(query) { |q, quoted_word| q.sub(quoted_word, '') }
words = query.split(/\s+/)
quoted_words.map! { |quoted_word| quoted_word[1..-2] }
words.concat(quoted_words)
words.select { |word| partial_matching?(word) }
end
end
end
end
end
|
