diff options
Diffstat (limited to 'activerecord/lib/active_record/relation')
-rw-r--r-- | activerecord/lib/active_record/relation/batches.rb | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb index 4d14506965..d32048cce1 100644 --- a/activerecord/lib/active_record/relation/batches.rb +++ b/activerecord/lib/active_record/relation/batches.rb @@ -36,12 +36,12 @@ module ActiveRecord # want multiple workers dealing with the same processing queue. You can # make worker 1 handle all the records between id 0 and 10,000 and # worker 2 handle from 10,000 and beyond (by setting the +:start+ - # option on that worker). + # option on that worker). You can also use non-integer-based primary keys + # if start point is set. # # It's not possible to set the order. That is automatically set to - # ascending on the primary key ("id ASC") to make the batch ordering - # work. This also mean that this method only works with integer-based - # primary keys. You can't set the limit either, that's used to control + # ascending on the primary key (e.g. "id ASC") to make the batch ordering + # work. You can't set the limit either, that's used to control # the batch sizes. # # Person.where("age > 21").find_in_batches do |group| @@ -62,7 +62,8 @@ module ActiveRecord ActiveRecord::Base.logger.warn("Scoped order and limit are ignored, it's forced to be batch order and batch size") end - start = options.delete(:start).to_i + start = options.delete(:start) + start ||= 0 batch_size = options.delete(:batch_size) || 1000 relation = relation.reorder(batch_order).limit(batch_size) @@ -70,7 +71,7 @@ module ActiveRecord while records.any? records_size = records.size - primary_key_offset = records.last.id + primary_key_offset = records.last.send(primary_key) yield records |