Fix 404 page when viewing TODOs that contain milestones or labels in different projects
A user viewing the TODOs page will see a 404 if there are mentioned labels in multiple different projects. This is likely a caching bug and only occurs when Markdown rendering occurs across multiple projects, which is why it's so tricky to reproduce. This is what I think is happening: 1. LabelReferenceFilter#references_in encounters label ~X for ProjectA and finds the label in the DB as id = 1. 2. LabelReferenceFilter.references_in yields [1, 'X', nil, ...] 3. Since project_ref is nil, AbstractReferenceFilter#project_from_ref_cache caches nil => ProjectA. 4. LabelReferenceFilter#references_in encounters label ~Y for ProjectB and finds the label in the DB as id = 2. 5. LabelReferenceFilter.references_in yields [2, 'Y', nil, ...] 6. AbstractReferenceFilter#project_from_ref_cache lookups nil and returns ProjectA. It was supposed to be ProjectB. 7. A is the wrong project, so the label lookup fails. This MR caches Markdown references if the key is present. Closes #17898
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@ -6,6 +6,7 @@ v 8.9.0 (unreleased)
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- Allow forking projects with restricted visibility level
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- Improve note validation to prevent errors when creating invalid note via API
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- Remove project notification settings associated with deleted projects
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- Fix 404 page when viewing TODOs that contain milestones or labels in different projects
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- Redesign navigation for project pages
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- Fix groups API to list only user's accessible projects
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- Redesign account and email confirmation emails
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@ -236,7 +236,9 @@ module Banzai
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if cache.key?(key)
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cache[key]
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else
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cache[key] = yield
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value = yield
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cache[key] = value if key.present?
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value
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end
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end
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end
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@ -43,6 +43,27 @@ describe 'Dashboard Todos', feature: true do
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end
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end
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context 'User has Todos with labels spanning multiple projects' do
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before do
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label1 = create(:label, project: project)
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note1 = create(:note_on_issue, note: "Hello #{label1.to_reference(format: :name)}", noteable_id: issue.id, noteable_type: 'Issue', project: issue.project)
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create(:todo, :mentioned, project: project, target: issue, user: user, note_id: note1.id)
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project2 = create(:project)
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label2 = create(:label, project: project2)
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issue2 = create(:issue, project: project2)
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note2 = create(:note_on_issue, note: "Test #{label2.to_reference(format: :name)}", noteable_id: issue2.id, noteable_type: 'Issue', project: project2)
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create(:todo, :mentioned, project: project2, target: issue2, user: user, note_id: note2.id)
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login_as(user)
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visit dashboard_todos_path
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end
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it 'shows page with two Todos' do
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expect(page).to have_selector('.todos-list .todo', count: 2)
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end
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end
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context 'User has multiple pages of Todos' do
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before do
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allow(Todo).to receive(:default_per_page).and_return(1)
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