11-- TODO add support for https://datatracker.ietf.org/doc/html/rfc3966 (see https://habr.com/ru/post/278345/)
22
33create or replace function phone_normalize (
4- country_code int ,
5- area_code text ,
6- local_number text
4+ country_code int ,-- код страны в любом формате или NULL
5+ area_code text ,-- код зоны в любом формате или NULL
6+ local_number text -- локальный номер телефона в любом формате или NULL
77)
88 returns text
99 immutable
1010 -- returns null on null input
1111 parallel safe
1212 language plpgsql
13+ cost 10
1314as
1415$$
1516declare
1617 phone text ;
18+ is_starts_with_plus boolean ;
1719begin
1820 -- not valid speed improves
1921 if country_code not between 0 and 999
2325 return null ;
2426 end if;
2527
28+ is_starts_with_plus := country_code is null and concat_ws(' ' ' ^\D *?\+ '
29+ 2630 area_code := trim (regexp_replace(area_code, ' (?:^\D +|\D +$|[ ()\- .]+|&(?:ndash|minus);)' ' ' ' g'
2731 local_number := trim (regexp_replace(local_number, ' (?:^\D +|\D +$|[ ()\- .]+|&(?:ndash|minus);)' ' ' ' g'
2832
@@ -52,12 +56,14 @@ begin
5256 phone := replace(phone, ' /' ' '
5357 -- raise notice 'stage 2: %', phone;
5458
59+ /* --DEPRECATED
5560 if phone ~ '(\d)1円{8}' --все цифры одинаковые
5661 then
5762 return null;
5863 end if;
64+ */
5965
60- if country_code is null and octet_length(phone) = 10
66+ if country_code is null and octet_length(phone) = 10 and not is_starts_with_plus
6167 then
6268 phone = ' 7' || phone;
6369 end if;
@@ -94,7 +100,7 @@ create or replace function phone_normalize(
94100 local_number text
95101)
96102 returns text
97- stable
103+ immutable
98104 -- returns null on null input
99105 parallel safe
100106 language sql
@@ -111,13 +117,21 @@ create or replace function phone_normalize(
111117 phone text
112118)
113119 returns text
114- stable
120+ immutable
115121 returns null on null input
116122 parallel safe
117123 language sql
118124as
119125$$
120- select phone_normalize(null , null , phone);
126+ select
127+ case when -- speed improves: номер телефона в международном формате E.164 ?
128+ left(phone, 1 ) = ' +'
129+ and octet_length(phone)
130+ between 1 /* +*/ + 8 -- https://stackoverflow.com/questions/14894899/what-is-the-minimum-length-of-a-valid-international-phone-number
131+ and 1 /* +*/ + 15 -- https://en.wikipedia.org/wiki/E.164 and https://en.wikipedia.org/wiki/Telephone_numbering_plan)
132+ and phone ~ ' ^\+\d +$'
133+ else phone_normalize(null , null , phone)
134+ end;
121135$$;
122136
123137
@@ -151,7 +165,12 @@ do $$
151165 assert phone_normalize(8 ,' 7 977' ' 123 45 67' = ' +79771234567'
152166 assert phone_normalize(7 ,' 977' ' 1234567' = ' +79771234567'
153167 assert phone_normalize(8 ,null ,' 8 9771234567' = ' +79771234567'
168+ 154169 assert phone_normalize(' 8 977 1234567' = ' +79771234567'
170+ assert phone_normalize(' +79771234567' = ' +79771234567'
171+ assert phone_normalize(' 677 1234567' = ' +76771234567'
172+ assert phone_normalize(' +677 1234567' = ' +6771234567'
173+ assert phone_normalize(' 210(-.-)7905(-.-)1234567' = ' +21079051234567'
155174
156175 -- negative
157176 assert phone_normalize(- 1 ,' 977' ' 1234567' null ;
0 commit comments