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Relations in batches

Relations in batches: Ruby on Rails 5 New Features
Relations in batches: Ruby on Rails 5 New Features

ActiveRecord::Relations can be worked with in batches in Ruby on Rails 5, by using the new #in_batches method. Kevin first shows how to use the older #find_in_batches to illustrate why working in batches is important as well as why it isn’t flexible enough for all uses. Next, he shows how the new #in_batches method solves this problem by yielding a Relation for each batch which does not initiate a database query until requested.

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Skill Level Intermediate
1h 22m
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Skills covered in this course
Developer Web Web Development Ruby on Rails

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