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Diffstat (limited to 'railties/guides/source/2_3_release_notes.textile')
| -rw-r--r-- | railties/guides/source/2_3_release_notes.textile | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/railties/guides/source/2_3_release_notes.textile b/railties/guides/source/2_3_release_notes.textile index 654b2922c4..e9022aa044 100644 --- a/railties/guides/source/2_3_release_notes.textile +++ b/railties/guides/source/2_3_release_notes.textile @@ -141,19 +141,19 @@ end You can pass most of the +find+ options into +find_in_batches+. However, you cannot specify the order that records will be returned in (they will always be returned in ascending order of primary key, which must be an integer), or use the +:limit+ option. Instead, use the +:batch_size+ option, which defaults to 1000, to set the number of records that will be returned in each batch. -The new +each+ method provides a wrapper around +find_in_batches+ that returns individual records, with the find itself being done in batches (of 1000 by default): +The new +find_each+ method provides a wrapper around +find_in_batches+ that returns individual records, with the find itself being done in batches (of 1000 by default): <ruby> -Customer.each do |customer| +Customer.find_each do |customer| customer.update_account_balance! end </ruby> Note that you should only use this method for batch processing: for small numbers of records (less than 1000), you should just use the regular find methods with your own loop. -* More Information: - - "Rails 2.3: Batch Finding":http://afreshcup.com/2009/02/23/rails-23-batch-finding/ - - "What's New in Edge Rails: Batched Find":http://ryandaigle.com/articles/2009/2/23/what-s-new-in-edge-rails-batched-find +* More Information (at that point the convenience method was called just +each+): +** "Rails 2.3: Batch Finding":http://afreshcup.com/2009/02/23/rails-23-batch-finding/ +** "What's New in Edge Rails: Batched Find":http://ryandaigle.com/articles/2009/2/23/what-s-new-in-edge-rails-batched-find h4. Multiple Conditions for Callbacks |