Seed your database with the Faker gem. Then seed 9.4x faster with upsert_all and activerecord-import.

I cover 3 things in this article —Using the faker gem in a Rails app to seed 10,000 fake records.Fixing our slow seeds by making them 9.4x faster, using upsert_all or the activerecord-import gem (since our naive method is very inefficient).Finally, I show you how to split your database seeds into 3 separate files — one file for each Rails environment. This way, you won't seed your production database with lots of faker generated records.