37 lines
1.2 KiB
Ruby
37 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module Preloaders
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# This class preloads the `project`, `group`, and subscription associations for the given
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# labels, user, and project (if provided). A Label can be of type ProjectLabel or GroupLabel
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# and the preloader supports both.
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#
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# Usage:
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# labels = Label.where(...)
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# Preloaders::LabelsPreloader.new(labels, current_user, @project).preload_all
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# labels.first.project # won't fire any query
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class LabelsPreloader
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attr_reader :labels, :user, :project
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def initialize(labels, user, project = nil)
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@labels = labels
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@user = user
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@project = project
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end
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def preload_all
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preloader = ActiveRecord::Associations::Preloader.new
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preloader.preload(labels, parent_container: :route)
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preloader.preload(labels.select { |l| l.is_a? ProjectLabel }, { project: [:project_feature, namespace: :route] })
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preloader.preload(labels.select { |l| l.is_a? GroupLabel }, { group: :route })
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labels.each do |label|
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label.lazy_subscription(user)
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label.lazy_subscription(user, project) if project.present?
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end
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end
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end
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end
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Preloaders::LabelsPreloader.prepend_mod_with('Preloaders::LabelsPreloader')
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