discourse/config/initializers/04-message_bus.rb

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MessageBus.site_id_lookup do
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RailsMultisite::ConnectionManagement.current_db
end
MessageBus.user_id_lookup do |env|
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user = CurrentUser.lookup_from_env(env)
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user.id if user
end
MessageBus.group_ids_lookup do |env|
user = CurrentUser.lookup_from_env(env)
user.groups.select('groups.id').map{|g| g.id} if user
end
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MessageBus.on_connect do |site_id|
RailsMultisite::ConnectionManagement.establish_connection(db: site_id)
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end
MessageBus.on_disconnect do |site_id|
ActiveRecord::Base.connection_handler.clear_active_connections!
end
# Point at our redis
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MessageBus.redis_config = YAML.load(ERB.new(File.new("#{Rails.root}/config/redis.yml").read).result)[Rails.env].symbolize_keys
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MessageBus.long_polling_enabled = SiteSetting.enable_long_polling
MessageBus.long_polling_interval = SiteSetting.long_polling_interval
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MessageBus.is_admin_lookup do |env|
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user = CurrentUser.lookup_from_env(env)
if user && user.admin
true
else
false
end
end
MessageBus.cache_assets = !Rails.env.development?
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MessageBus.enable_diagnostics
digest = Rails.application.assets.digest.to_s
channel = "/global/asset-version"
message = MessageBus.last_message(channel)
unless message && message.data == digest
MessageBus.publish channel, digest
end