Module: ActiveRecord::Turntable::Migration::ShardDefinition

Defined in:
lib/active_record/turntable/migration.rb

Instance Method Summary collapse

Instance Method Details

#clusters(*cluster_names) ⇒ Object 



18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/active_record/turntable/migration.rb', line 18

def clusters(*cluster_names)
  config = ActiveRecord::Base.turntable_configuration
  (self.target_shards ||= []).concat(
    if cluster_names.first == :all
      config.clusters.map(&:shards).flatten
    else
      cluster_names.map do |cluster_name|
        config.cluster(cluster_name).shards
      end.flatten
    end
  )
end

#shards(*connection_names) ⇒ Object 



31
32
33
 
# File 'lib/active_record/turntable/migration.rb', line 31

def shards(*connection_names)
  (self.target_shards ||= []).concat connection_names
end