I maintain seed-do, which is a fork of seed-fu updated to work with the latest Ruby and Rails. This time, I added performance improvements and released it as v4.0.0.
Main changes
By using SeedDo.seed(bulk: true), you can now UPSERT records in bulk using Rails' upsert_all. Here is the PR: Enable bulk upsert in SeedDo.seed by willnet · Pull Request #26 · willnet/seed-do
For most people, simply replacing SeedDo.seed with SeedDo.seed(bulk: true) should make seeding faster.
However, because this feature uses the :unique_by option of upsert_all, it only works with PostgreSQL and SQLite. Sorry to MySQL users.
Also, while adding this feature, I reorganized the internal API, which caused breaking changes. So I bumped the major version. If you are not using the internal API, this should not affect you.
If you try it, I would be happy to hear your feedback.
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