cartodb-4.42/lib/carto/visualization_invalidation_service.rb

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2024-04-06 13:25:13 +08:00
module Carto
class VisualizationInvalidationService
def initialize(visualization)
@visualization = visualization
end
def invalidate
invalidate_caches
invalidate_affected_visualizations if attributes_affecting_visualizations_changed?
update_or_destroy_named_map
end
protected
def invalidate_caches
invalidate_embeds_from_redis
invalidate_vizjson_from_redis
invalidate_vizjson_from_varnish
end
private
def update_or_destroy_named_map
return if @visualization.remote?
named_maps_api = Carto::NamedMaps::Api.new(@visualization.for_presentation)
if @visualization.destroyed?
named_maps_api.destroy
elsif @visualization.data_layers.any?
named_maps_api.upsert
end
end
def invalidate_affected_visualizations
return unless @visualization.user_table
# Invalidate the maps where this table is used. This is needed because the attributions of the datasets used
# in a map is used in the vizjson, and the description is shown in the public pages/embed.
# There is no need to invalidate the named maps, as nothing from the dataset is included there.
@visualization.user_table.dependent_visualizations.each do |affected_visualization|
VisualizationInvalidationService.new(affected_visualization).invalidate_caches
end
end
def invalidate_embeds_from_redis
EmbedRedisCache.new($tables_metadata).invalidate(@visualization.id)
end
def invalidate_vizjson_from_redis
CartoDB::Visualization::RedisVizjsonCache.new.invalidate(@visualization.id)
end
def invalidate_vizjson_from_varnish
CartoDB::Varnish.new.purge(".*#{@visualization.id}:vizjson")
end
def attributes_affecting_visualizations_changed?
@visualization.canonical? &&
(
@visualization.previous_changes.include?(:description) ||
@visualization.previous_changes.include?(:attributions)
)
end
end
end