Activerecord::PreloadBlock

Add this line to your application's Gemfile:

gem 'activerecord-preload_block'

And then execute:

$ bundle

Or install it yourself as:

$ gem install activerecord-preload_block

# eq: User.all.preload(:comments, :posts)
User.all.preload do |records|
  preload records, :comments
  preload records, :posts
end

# filter preload owner
User.all.preload do |records|
  preload records.select(&:hoge?), :comments
end

# filter preload associations records
User.all.preload do |records|
  preload records, :comments, Comment.where(hoge: 'foo')
end

# with arguments
User.all.preload(:posts) do |records|
  preload records, :comments
end

gem 'activerecord-records_on_load' is also helpful for customizing AR records loaded hook

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/activerecord-preload_block. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Activerecord::PreloadBlock project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.