Class: ActiveRecordStreamer
- Inherits:
-
Object
- Object
- ActiveRecordStreamer
- Defined in:
- lib/active-record-streamer.rb
Instance Method Summary collapse
- #each(&blk) ⇒ Object
-
#initialize(args = {}) ⇒ ActiveRecordStreamer
constructor
A new instance of ActiveRecordStreamer.
- #rails4? ⇒ Boolean
Constructor Details
#initialize(args = {}) ⇒ ActiveRecordStreamer
Returns a new instance of ActiveRecordStreamer.
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# File 'lib/active-record-streamer.rb', line 4 def initialize(args = {}) @args = args @klass = args[:query].klass @sql = @args[:query].to_sql @includes = @args[:query].includes_values end |
Instance Method Details
#each(&blk) ⇒ Object
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# File 'lib/active-record-streamer.rb', line 15 def each(&blk) if @klass.respond_to?(:connection_without_octopus) @baza_db = Baza::Cloner.from_active_record_connection(@klass.connection_without_octopus) else @baza_db = Baza::Cloner.from_active_record_connection(@klass.connection) end begin cache = [] @baza_db.query_ubuf(@sql) do |data| model = @klass.new if rails4? model.assign_attributes(data) model.instance_variable_set(:@new_record, false) else model.instance_variable_set(:@new_record, false) model.instance_variable_set(:@attributes, data.stringify_keys!) end cache << model if cache.length >= 1000 yield_cache(cache, &blk) cache = [] end end yield_cache(cache, &blk) if cache.any? ensure @baza_db.destroy end end |
#rails4? ⇒ Boolean
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# File 'lib/active-record-streamer.rb', line 11 def rails4? @@rails4 ||= ActiveRecord::VERSION::STRING.start_with?('4') end |