Sha256: b302048acdead6536d5e52b105a5500e31d22c1ae18297aa04916b6b993fd826
Contents?: true
Size: 816 Bytes
Versions: 5
Compression:
Stored size: 816 Bytes
Contents
# frozen_string_literal: true
module N1Loader
# Preloader that lazily preloads data to every element.
#
# It supports multiple keys.
#
# It supports elements that have different loaders under the same key.
# It will properly preload data to each of the element of the similar group.
class Preloader
attr_reader :elements
def initialize(elements)
@elements = elements
end
def preload(*keys)
keys.flatten(1).flat_map do |key|
elements
.group_by { |element| element.class.n1_loader(key) }
.map do |loader_class, grouped_elements|
loader = loader_class.new(grouped_elements)
grouped_elements.each { |grouped_element| grouped_element.n1_loader_set(key, loader) }
loader
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems