2039c8280d
This whitelists all existing offenses for the various CodeReuse cops, of which most are triggered by the CodeReuse/ActiveRecord cop.
87 lines
2.2 KiB
Ruby
87 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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module Users
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# Service class for caching and retrieving the last push event of a user.
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class LastPushEventService
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EXPIRATION = 2.hours
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def initialize(user)
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@user = user
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end
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# Caches the given push event for the current user in the Rails cache.
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#
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# event - An instance of PushEvent to cache.
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def cache_last_push_event(event)
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keys = [
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project_cache_key(event.project),
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user_cache_key
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]
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if forked_from = event.project.forked_from_project
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keys << project_cache_key(forked_from)
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end
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keys.each { |key| set_key(key, event.id) }
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end
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# Returns the last PushEvent for the current user.
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#
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# This method will return nil if no event was found.
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def last_event_for_user
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find_cached_event(user_cache_key)
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end
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# Returns the last PushEvent for the current user and the given project.
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#
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# project - An instance of Project for which to retrieve the PushEvent.
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#
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# This method will return nil if no event was found.
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def last_event_for_project(project)
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find_cached_event(project_cache_key(project))
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end
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def find_cached_event(cache_key)
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event_id = get_key(cache_key)
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return unless event_id
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unless (event = find_event_in_database(event_id))
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# We don't want to keep querying the same data over and over when a
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# merge request has been created, thus we remove the key if no event
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# (meaning an MR was created) is returned.
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Rails.cache.delete(cache_key)
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end
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event
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end
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private
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# rubocop: disable CodeReuse/ActiveRecord
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def find_event_in_database(id)
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PushEvent
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.without_existing_merge_requests
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.find_by(id: id)
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end
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# rubocop: enable CodeReuse/ActiveRecord
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def user_cache_key
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"last-push-event/#{@user.id}"
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end
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def project_cache_key(project)
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"last-push-event/#{@user.id}/#{project.id}"
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end
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def get_key(key)
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Rails.cache.read(key, raw: true)
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end
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def set_key(key, value)
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# We're using raw values here since this takes up less space and we don't
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# store complex objects.
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Rails.cache.write(key, value, raw: true, expires_in: EXPIRATION)
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end
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end
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end
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