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14d54872f0
Prior to this change, each request executed 2 Redis calls per chat channel that was loaded. The number of Redis calls quickly adds up once a user is following multiple channels.
81 lines
2.9 KiB
Ruby
81 lines
2.9 KiB
Ruby
# frozen_string_literal: true
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class StructuredChannelSerializer < ApplicationSerializer
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attributes :public_channels, :direct_message_channels, :message_bus_last_ids
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def public_channels
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object[:public_channels].map do |channel|
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ChatChannelSerializer.new(
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channel,
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root: nil,
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scope: scope,
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membership: channel_membership(channel.id),
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new_messages_message_bus_last_id: chat_message_bus_last_ids[ChatPublisher.new_messages_message_bus_channel(channel.id)],
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new_mentions_message_bus_last_id: chat_message_bus_last_ids[ChatPublisher.new_mentions_message_bus_channel(channel.id)]
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)
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end
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end
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def direct_message_channels
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object[:direct_message_channels].map do |channel|
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ChatChannelSerializer.new(
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channel,
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root: nil,
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scope: scope,
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membership: channel_membership(channel.id),
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new_messages_message_bus_last_id: chat_message_bus_last_ids[ChatPublisher.new_messages_message_bus_channel(channel.id)],
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new_mentions_message_bus_last_id: chat_message_bus_last_ids[ChatPublisher.new_mentions_message_bus_channel(channel.id)]
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)
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end
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end
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def channel_membership(channel_id)
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return if scope.anonymous?
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object[:memberships].find { |membership| membership.chat_channel_id == channel_id }
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end
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def message_bus_last_ids
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ids = {
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channel_metadata: chat_message_bus_last_ids[ChatPublisher::CHANNEL_METADATA_MESSAGE_BUS_CHANNEL],
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channel_edits: chat_message_bus_last_ids[ChatPublisher::CHANNEL_EDITS_MESSAGE_BUS_CHANNEL],
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channel_status: chat_message_bus_last_ids[ChatPublisher::CHANNEL_STATUS_MESSAGE_BUS_CHANNEL],
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new_channel: chat_message_bus_last_ids[ChatPublisher::NEW_CHANNEL_MESSAGE_BUS_CHANNEL]
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}
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if id = chat_message_bus_last_ids[ChatPublisher.user_tracking_state_message_bus_channel(scope.user.id)]
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ids[:user_tracking_state] = id
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end
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ids
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end
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private
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def chat_message_bus_last_ids
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@chat_message_bus_last_ids ||= begin
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message_bus_channels = [
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ChatPublisher::CHANNEL_METADATA_MESSAGE_BUS_CHANNEL,
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ChatPublisher::CHANNEL_EDITS_MESSAGE_BUS_CHANNEL,
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ChatPublisher::CHANNEL_STATUS_MESSAGE_BUS_CHANNEL,
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ChatPublisher::NEW_CHANNEL_MESSAGE_BUS_CHANNEL,
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]
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if !scope.anonymous?
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message_bus_channels.push(ChatPublisher.user_tracking_state_message_bus_channel(scope.user.id))
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end
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object[:public_channels].each do |channel|
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message_bus_channels.push(ChatPublisher.new_messages_message_bus_channel(channel.id))
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message_bus_channels.push(ChatPublisher.new_mentions_message_bus_channel(channel.id))
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end
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object[:direct_message_channels].each do |channel|
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message_bus_channels.push(ChatPublisher.new_messages_message_bus_channel(channel.id))
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message_bus_channels.push(ChatPublisher.new_mentions_message_bus_channel(channel.id))
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end
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MessageBus.last_ids(*message_bus_channels)
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end
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end
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end
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