迁移用户所在地中包含省、市的数据

db/migrate/20200213094050_migrate_user_location.rb

@@ -0,0 +1,11 @@
+class MigrateUserLocation < ActiveRecord::Migration[5.2]
+  def change
+    UserExtension.where("location like '%省'").each do |ue|
+      ue.update_column("location", ue.location.chop)
+    end
+
+    UserExtension.where("location_city like '%市'").each do |ue|
+      ue.update_column("location_city", ue.location_city.chop)
+    end
+  end
+end