dm-chunked_query
Description
Allows performing chunked queries on DataMapper Models or Collections.
Features
- Allows random-access to chunks within a query.
- Can iterate through all chunks within a query.
- Can be used for bulk-processing of resources.
- Can also be used for pagination of resources.
Examples
Enumerate over all chunks, 20 resources per-chunk:
require 'dm-chunked_query'
MyModel.each_chunk(20) do |chunk|
chunk.each do |resource|
# ...
end
end
Get the 5th chunk, containing 10 resources:
MyModel.all(:foo => 'bar').chunks(10)[5]
Process records in batches:
MyModel.batch(100) do |resource|
# ...
end
Requirements
- dm-core ~> 1.0
- dm-aggregates ~> 1.0
Install
$ gem install dm-chunked_query
Copyright
Copyright (c) 2011-2012 Hal Brodigan
See LICENSE for details.