instance method
each_record
Ruby on Rails edge
Since v5.0.7.2Signature
each_record(&block)Looping through a collection of records from the database (using the all method, for example) is very inefficient since it will try to instantiate all the objects at once.
In that case, batch processing methods allow you to work with the records in batches, thereby greatly reducing memory consumption.
“‘ Person.in_batches.each_record do |person|
person.do_awesome_stuff
end
Person.where(“age > 21”).in_batches(of: 10).each_record do |person|
person.party_all_night!
end “‘
If you do not provide a block to #each_record, it will return an Enumerator for chaining with other methods:
“‘ Person.in_batches.each_record.with_index do |person, index|
person.award_trophy(index + 1)
end “‘
Parameters
-
blockblock
Source
# File activerecord/lib/active_record/relation/batches/batch_enumerator.rb, line 66
def each_record(&block)
return to_enum(:each_record) unless block_given?
@relation.to_enum(:in_batches, of: @of, start: @start, finish: @finish, load: true, cursor: @cursor, order: @order).each do |relation|
relation.records.each(&block)
end
end
Defined in activerecord/lib/active_record/relation/batches/batch_enumerator.rb line 66
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Defined in ActiveRecord::Batches::BatchEnumerator