Commit 8c29b0b0 authored by Stan Hu's avatar Stan Hu

Memoize the maximum access level for the author of notes

In #19273, we saw that retrieving ProjectTeam#human_max_access for each
note takes the bulk of the time when rendering certain issues or merge requests.
We observe that most of the comments in an issue are typically done by the
same users. This MR memoizes the max access level by user ID.
parent a4b1fe4d
......@@ -69,4 +69,12 @@ def link_to_reply_discussion(note, line_type = nil)
button_tag 'Reply...', class: 'btn btn-text-field js-discussion-reply-button',
data: data, title: 'Add a reply'
end
def note_max_access_for_user(note)
user_id = note.author.id
project = note.project
@max_access_by_user_id ||= Hash.new { |hash, key| hash[key] = project.team.human_max_access(key) }
@max_access_by_user_id[user_id]
end
end
......@@ -17,7 +17,7 @@
%a{ href: "##{dom_id(note)}" }
= time_ago_with_tooltip(note.created_at, placement: 'bottom', html_class: 'note-created-ago')
.note-actions
- access = note.project.team.human_max_access(note.author.id)
- access = note_max_access_for_user(note)
- if access and not note.system
%span.note-role.hidden-xs= access
- if current_user and not note.system
......
require "spec_helper"
describe NotesHelper do
describe "#notes_max_access_for_users" do
let(:owner) { create(:owner) }
let(:group) { create(:group) }
let(:project) { create(:empty_project, namespace: group) }
let(:master) { create(:user) }
let(:reporter) { create(:user) }
let(:guest) { create(:user) }
let(:owner_note) { create(:note, author: owner, project: project) }
let(:master_note) { create(:note, author: master, project: project) }
let(:reporter_note) { create(:note, author: reporter, project: project) }
let!(:notes) { [owner_note, master_note, reporter_note] }
before do
group.add_owner(owner)
project.team << [master, :master]
project.team << [reporter, :reporter]
project.team << [guest, :guest]
end
it 'return human access levels' do
expect(helper.note_max_access_for_user(owner_note)).to eq('Owner')
expect(helper.note_max_access_for_user(master_note)).to eq('Master')
expect(helper.note_max_access_for_user(reporter_note)).to eq('Reporter')
# Call it again to ensure value is cached
expect(helper.note_max_access_for_user(owner_note)).to eq('Owner')
end
end
end
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