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-rw-r--r--activerecord/lib/active_record/relation/batches.rb15
1 files changed, 13 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb
index 341769b5c4..fd8496442e 100644
--- a/activerecord/lib/active_record/relation/batches.rb
+++ b/activerecord/lib/active_record/relation/batches.rb
@@ -19,6 +19,13 @@ module ActiveRecord
# person.party_all_night!
# end
#
+ # If you do not provide a block to #find_each, it will return an Enumerator
+ # for chaining with other methods:
+ #
+ # Person.find_each.with_index do |person, index|
+ # person.award_trophy(index + 1)
+ # end
+ #
# ==== Options
# * <tt>:batch_size</tt> - Specifies the size of the batch. Default to 1000.
# * <tt>:start</tt> - Specifies the starting point for the batch processing.
@@ -40,8 +47,12 @@ module ActiveRecord
# NOTE: You can't set the limit either, that's used to control
# the batch sizes.
def find_each(options = {})
- find_in_batches(options) do |records|
- records.each { |record| yield record }
+ if block_given?
+ find_in_batches(options) do |records|
+ records.each { |record| yield record }
+ end
+ else
+ enum_for :find_each, options
end
end