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# frozen_string_literal: true
class PrimaryResourceController < ActionController::Base
PRIMARY_RESOURCE =
begin
if ENV['BENCH_STRESS']
has_many_relationships = (0..50).map do |i|
HasManyRelationship.new(id: i, body: 'ZOMG A HAS MANY RELATIONSHIP')
end
else
has_many_relationships = [HasManyRelationship.new(id: 1, body: 'ZOMG A HAS MANY RELATIONSHIP')]
end
has_one_relationship = HasOneRelationship.new(id: 42, first_name: 'Joao', last_name: 'Moura')
PrimaryResource.new(id: 1337, title: 'New PrimaryResource', virtual_attribute: nil, body: 'Body', has_many_relationships: has_many_relationships, has_one_relationship: has_one_relationship)
end
def render_with_caching_serializer
toggle_cache_status
render json: PRIMARY_RESOURCE, serializer: CachingPrimaryResourceSerializer, adapter: :json, meta: { caching: perform_caching }
end
def render_with_fragment_caching_serializer
toggle_cache_status
render json: PRIMARY_RESOURCE, serializer: FragmentCachingPrimaryResourceSerializer, adapter: :json, meta: { caching: perform_caching }
end
def render_with_non_caching_serializer
toggle_cache_status
render json: PRIMARY_RESOURCE, adapter: :json, meta: { caching: perform_caching }
end
def render_cache_status
toggle_cache_status
# Uncomment to debug
# STDERR.puts cache_store.class
# STDERR.puts cache_dependencies
# ActiveSupport::Cache::Store.logger.debug [ActiveModelSerializers.config.cache_store, ActiveModelSerializers.config.perform_caching, CachingPrimaryResourceSerializer._cache, perform_caching, params].inspect
render json: { caching: perform_caching, meta: { cache_log: cache_messages, cache_status: cache_status } }.to_json
end
def clear
ActionController::Base.cache_store.clear
# Test caching is on
# Uncomment to turn on logger; possible performance issue
# logger = BenchmarkLogger.new
# ActiveSupport::Cache::Store.logger = logger # seems to be the best way
#
# the below is used in some rails tests but isn't available/working in all versions, so far as I can tell
# https://github.com/rails/rails/pull/15943
# ActiveSupport::Notifications.subscribe(/^cache_(.*)\.active_support$/) do |*args|
# logger.debug ActiveSupport::Notifications::Event.new(*args)
# end
render json: 'ok'.to_json
end
private
def cache_status
{
controller: perform_caching,
app: Rails.configuration.action_controller.perform_caching,
serializers: Rails.configuration.serializers.each_with_object({}) { |serializer, data| data[serializer.name] = serializer._cache.present? }
}
end
def cache_messages
ActiveSupport::Cache::Store.logger.is_a?(BenchmarkLogger) && ActiveSupport::Cache::Store.logger.messages.split("\n")
end
def toggle_cache_status
case params[:on]
when 'on'.freeze then self.perform_caching = true
when 'off'.freeze then self.perform_caching = false
else nil # no-op
end
end
end
Rails.application.routes.draw do
get '/status(/:on)' => 'primary_resource#render_cache_status'
get '/clear' => 'primary_resource#clear'
get '/caching(/:on)' => 'primary_resource#render_with_caching_serializer'
get '/fragment_caching(/:on)' => 'primary_resource#render_with_fragment_caching_serializer'
get '/non_caching(/:on)' => 'primary_resource#render_with_non_caching_serializer'
end
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