weibo: normalize weibo urls in artist entries.

Normalize all Weibo URLs in artist entries to one of these forms:

* https://www.weibo.com/u/5399876326
* https://www.weibo.com/p/1005055399876326
* https://www.weibo.com/chengziyou666

app/models/artist.rb

@@ -61,6 +61,17 @@ class Artist < ApplicationRecord
     def clear_url_string_changed
       self.url_string_changed = false
     end
+
+    class_methods do
+      # Find all artist URLs matching `regex`, and replace the `from` regex with the `to` string.
+      def rewrite_urls(regex, from, to)
+        Artist.transaction do
+          Artist.joins(:urls).where_regex("artist_urls.url", regex).find_each do |artist|
+            artist.update!(url_string: artist.url_string.gsub(from, to))
+          end
+        end
+      end
+    end
   end
 
   concerning :NameMethods do

script/fixes/104_normalize_weibo_artist_urls.rb

@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+
+require_relative "base"
+
+with_confirmation do
+  # https://m.weibo.cn/u/7119279079 -> https://m.weibo.com/u/7119279079
+  Artist.rewrite_urls('weibo\.cn', /weibo\.cn/, "weibo.com")
+
+  # https://m.weibo.com/u/7119279079 -> https://www.weibo.com/u/7119279079
+  Artist.rewrite_urls('m\.weibo\.com', /m\.weibo\.com/, "www.weibo.com")
+
+  # https://weibo.com/u/5466604405 -> https://www.weibo.com/u/5466604405
+  Artist.rewrite_urls('https?://weibo\.com', %r{https?://weibo\.com}, "https://www.weibo.com")
+
+  # https://www.weibo.com/5493194708/profile?rightmod=1&wvr=6&mod=personnumber&is_all=1 -> https://www.weibo.com/5493194708/profile
+  Artist.rewrite_urls('weibo\.com.*\?.*', /(.*weibo\.com.*)(\?.*$)/, '\1')
+
+  # https://www.weibo.com/5493194708/profile -> https://www.weibo.com/5493194708
+  Artist.rewrite_urls('weibo.com/[0-9]+/profile', %r{/profile$}, "")
+
+  # https://www.weibo.com/5493194708/home -> https://www.weibo.com/5493194708
+  Artist.rewrite_urls('weibo.com/[0-9]+/home', %r{/home$}, "")
+end

script/fixes/base.rb

@@ -3,9 +3,11 @@ require_relative "../../config/environment"
 # Run a block of code in a transaction, and only commit it after confirmation.
 def with_confirmation(&block)
   ApplicationRecord.transaction do
-    yield
+    CurrentUser.scoped(User.system, "127.0.0.1") do
+      yield
 
-    print "Commit? (yes/no): "
-    raise "abort" unless STDIN.readline.chomp == "yes"
+      print "Commit? (yes/no): "
+      raise "abort" unless STDIN.readline.chomp == "yes"
+    end
   end
 end