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class NotesFinder
FETCH_OVERLAP = 5.seconds
def execute(project, current_user, params)
target_type = params[:target_type]
target_id = params[:target_id]
# Default to 0 to remain compatible with old clients
last_fetched_at = Time.at(params.fetch(:last_fetched_at, 0).to_i)
notes =
case target_type
when "commit"
project.notes.for_commit_id(target_id).non_diff_notes
when "issue"
project.issues.visible_to_user(current_user).find(target_id).notes.inc_author
when "merge_request"
project.merge_requests.find(target_id).mr_and_commit_notes.inc_author
when "snippet", "project_snippet"
project.snippets.find(target_id).notes
else
raise 'invalid target_type'
end
# Use overlapping intervals to avoid worrying about race conditions
notes.where('updated_at > ?', last_fetched_at - FETCH_OVERLAP).fresh
end
end
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