89 lines
2.1 KiB
Ruby
89 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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class BroadcastMessage < ActiveRecord::Base
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include CacheMarkdownField
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include Sortable
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cache_markdown_field :message, pipeline: :broadcast_message
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validates :message, presence: true
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validates :starts_at, presence: true
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validates :ends_at, presence: true
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validates :color, allow_blank: true, color: true
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validates :font, allow_blank: true, color: true
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default_value_for :color, '#E75E40'
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default_value_for :font, '#FFFFFF'
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CACHE_KEY = 'broadcast_message_current_json'.freeze
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LEGACY_CACHE_KEY = 'broadcast_message_current'.freeze
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after_commit :flush_redis_cache
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def self.current
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messages = cache.fetch(CACHE_KEY, as: BroadcastMessage, expires_in: cache_expires_in) do
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remove_legacy_cache_key
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current_and_future_messages
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end
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return [] unless messages&.present?
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now_or_future = messages.select(&:now_or_future?)
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# If there are cached entries but none are to be displayed we'll purge the
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# cache so we don't keep running this code all the time.
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cache.expire(CACHE_KEY) if now_or_future.empty?
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now_or_future.select(&:now?)
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end
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def self.current_and_future_messages
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where('ends_at > :now', now: Time.zone.now).order_id_asc
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end
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def self.cache
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Gitlab::JsonCache.new(cache_key_with_version: false)
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end
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def self.cache_expires_in
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nil
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end
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# This can be removed in GitLab 12.0+
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# The old cache key had an indefinite lifetime, and in an HA
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# environment a one-shot migration would not work because the cache
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# would be repopulated by a node that has not been upgraded.
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def self.remove_legacy_cache_key
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cache.expire(LEGACY_CACHE_KEY)
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end
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def active?
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started? && !ended?
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end
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def started?
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Time.zone.now >= starts_at
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end
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def ended?
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ends_at < Time.zone.now
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end
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def now?
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(starts_at..ends_at).cover?(Time.zone.now)
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end
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def future?
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starts_at > Time.zone.now
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end
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def now_or_future?
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now? || future?
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end
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def flush_redis_cache
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self.class.cache.expire(CACHE_KEY)
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self.class.remove_legacy_cache_key
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end
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end
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