28e6af88aa
If we don't call #to_a, we're relying on the members already being loaded from elsewhere. Otherwise we'll do a separate query for each user: [1] pry(main)> Project.first.team.members.include?(User.first) Project Load (0.7ms) SELECT "projects".* FROM "projects" ORDER BY "projects"."id" ASC LIMIT 1 ↳ (pry):3 User Load (1.8ms) SELECT "users".* FROM "users" ORDER BY "users"."id" ASC LIMIT 1 ↳ (pry):3 User Exists (0.6ms) SELECT 1 AS one FROM "users" INNER JOIN "project_authorizations" ON "users"."id" = "project_authorizations"."user_id" WHERE "project_authorizations"."project_id" = $1 AND "users"."id" = $2 LIMIT 1 [["project_id", 1], ["id", 1]] ↳ (pry):3 => true [2] pry(main)> Project.first.team.members.to_a.include?(User.first) Project Load (12.8ms) SELECT "projects".* FROM "projects" ORDER BY "projects"."id" ASC LIMIT 1 ↳ (pry):1 User Load (9.6ms) SELECT "users".* FROM "users" INNER JOIN "project_authorizations" ON "users"."id" = "project_authorizations"."user_id" WHERE "project_authorizations"."project_id" = $1 [["project_id", 1]] ↳ (pry):1 User Load (0.6ms) SELECT "users".* FROM "users" ORDER BY "users"."id" ASC LIMIT 1 ↳ (pry):1 => true
59 lines
1.7 KiB
Ruby
59 lines
1.7 KiB
Ruby
require 'spec_helper'
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describe NotificationRecipientService do
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let(:service) { described_class }
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let(:assignee) { create(:user) }
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let(:project) { create(:project, :public) }
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let(:other_projects) { create_list(:project, 5, :public) }
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describe '#build_new_note_recipients' do
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let(:issue) { create(:issue, project: project, assignees: [assignee]) }
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let(:note) { create(:note_on_issue, noteable: issue, project_id: issue.project_id) }
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shared_examples 'no N+1 queries' do
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it 'avoids N+1 queries', :request_store do
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create_user
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service.build_new_note_recipients(note)
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control_count = ActiveRecord::QueryRecorder.new do
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service.build_new_note_recipients(note)
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end
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create_user
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expect { service.build_new_note_recipients(note) }.not_to exceed_query_limit(control_count)
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end
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end
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context 'when there are multiple watchers' do
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def create_user
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watcher = create(:user)
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create(:notification_setting, source: project, user: watcher, level: :watch)
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other_projects.each do |other_project|
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create(:notification_setting, source: other_project, user: watcher, level: :watch)
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end
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end
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include_examples 'no N+1 queries'
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end
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context 'when there are multiple subscribers' do
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def create_user
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subscriber = create(:user)
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issue.subscriptions.create(user: subscriber, project: project, subscribed: true)
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end
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include_examples 'no N+1 queries'
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context 'when the project is private' do
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before do
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project.update!(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
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end
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include_examples 'no N+1 queries'
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end
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end
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end
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end
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