How to query comma separated values in Postgres string field? ROR / ActiveRecord

Question

I'm using Ruby on Rails 4.2.3 and I have two string fields in users table two_factor_secret_key and two_factor_recovery_codes . The first one has a string token while the second one has ten tokens separated by ; . They look something like:

[62] pry(main)> ap User.last
  User Load (6.0ms)  SELECT  "users".* FROM "users"   ORDER BY "users"."id" DESC LIMIT 1
#<User:0x007f8b3b009ad8> {
                              :id => 1,
                           :email => "test@me.com",
               ......
               ......
           :two_factor_secret_key => "jvyzizqib47gp4au",
       :two_factor_recovery_codes => "jgbcfjzh3lhpm6dv;er34rihizdlzu4fc;u32wwdmxl2dnxslv;liqcswrhjyfrpbkk;ttuezeszxnwzjent;4noxzmo4rg5jed5w;eynndg2gy5yzrdi3;h275valgjiiee7r3;f6m5xwujmtnucshe;tvhzxibvj4ikulyg"
}

How can I query users table in a way I search two_factor_secret_key and two_factor_recovery_codes .

In this example if the query was based on jvyzizqib47gp4au I would like to return the user and the same if I use er34rihizdlzu4fc I should get true as it's included in two_factor_recovery_codes ?

It's easy to find the record using two_factor_secret_key with something like: User.where(two_factor_secret_key: "jvyzizqib47gp4au") , however I'm not sure how should I query two_factor_recovery_codes with ; separated values.

Please note that I don't wanna use serialization with activerecords as ROR app is not the one who is responsible of generating the data in my case.

Any help?

Answer 1

您可以使用：

user = User.where("two_factor_secret_key LIKE :search OR two_factor_recovery_codes LIKE :search", search: "%jvyzizqib47gp4au%")