Retrieve all objects with errors from model on ActiveRecord

Question

There's an easy why that I don't remember to retrieve all invalid objects saved in the database from rails console.

Any idea how?

Answer 1

say your model is called Widget, then:

Widget.all.select(&:invalid?)

That's likely to be very slow if you have a lot of data, but you have to retrieve the records from the database if you want to check their validity.