Question

I have a user model and I need to display all users that have an id of smaller than 100. My code is

User.where(:id < 100)

The error message is “comparison of Symbol with 100 failed”. How can I just get all users with ids smaller than 100? How will it be if I need ids between 100 and 200?

Answer 1

You need to drop into a SQL where clause for that:

User.where("id < 100")

But there’s a gem that will let you do what you’re trying to do: squeel. With that installed you could get the same result with:

User.where{id < 100}

For the range test:

User.where("id > 100 and id < 200")

or with squeel:

User.where{id > 100 and id < 200}