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# File 'lib/switchman/active_record/association.rb', line 95
def associated_records_by_owner(preloader = nil)
owners_map = owners_by_key
if klass.nil? || owners_map.empty?
records = []
else
if reflection.macro == :belongs_to
partition_proc = ->(owner) do
if owner.class.sharded_column?(owner_key_name)
Shard.shard_for(owner[owner_key_name], owner.shard)
else
Shard.current
end
end
elsif !reflection.options[:multishard]
partition_proc = ->(owner) { owner.shard }
else
end
records = Shard.partition_by_shard(owners, partition_proc) do |partitioned_owners|
sliced_owners = partitioned_owners.each_slice(model.connection.in_clause_length || partitioned_owners.size)
sliced_owners.map do |slice|
relative_owner_keys = slice.map do |owner|
key = owner[owner_key_name]
if key && owner.class.sharded_column?(owner_key_name)
key = Shard.relative_id_for(key, owner.shard, Shard.current(owner.class.shard_category))
end
key && key.to_s
end
relative_owner_keys.compact!
relative_owner_keys.uniq!
records_for(relative_owner_keys)
end
end
records.flatten!
end
if ::Rails.version >= '4.1'
@preloaded_records = records
end
records_by_owner = owners.each_with_object({}) do |owner,h|
h[owner] = []
end
records.each do |record|
owner_key = record[association_key_name]
owner_key = Shard.global_id_for(owner_key, record.shard) if owner_key && record.class.sharded_column?(association_key_name)
owners_map[owner_key.to_s].each do |owner|
records_by_owner[owner] << record
end
end
records_by_owner
end
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