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Versions: 15
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Contents
module Locomotive
module Steam
class LiquidParserWithCacheService < LiquidParserService
UNMARSHALABLE_OPTIONS = %i(parser page parent_finder snippet_finder).freeze
attr_accessor_initialize :current_site, :parent_finder, :snippet_finder, :locale
def parse(page)
return super unless current_site.cache_enabled
read_template_from_cache(page) || write_template_in_cache(page, super)
end
def cache_key(page)
"#{Locomotive::VERSION}/site/#{current_site._id}/template/#{current_site.template_version.to_i}/page/#{page._id}/#{locale}"
end
private
def read_template_from_cache(page)
if marshaled = Rails.cache.read(cache_key(page))
Marshal.load(marshaled)
end
end
def write_template_in_cache(page, template)
begin
Rails.cache.write(cache_key(page), marshal(template))
rescue Exception => e
Rails.logger.warn "Could not marshal #{cache_key(page)}, error: #{e.message}"
end
template
end
def marshal(template)
_template = template.dup
# get rid of options in any tags/blocks of the document
# because options can not be marshaled
remove_unmarshalable_options(_template)
clean_template!(_template.root)
Marshal.dump(_template)
end
def clean_template!(node)
remove_unmarshalable_options(node)
# special case
clean_template!(node.descendant) if node.respond_to?(:descendant) && node.descendant
if node.respond_to?(:nodelist) && node.nodelist
node.nodelist.each do |_node|
clean_template!(_node)
end
end
end
def remove_unmarshalable_options(node)
options = node.instance_variable_get(:@options)
return if options.blank?
options.delete_if { |name, _| UNMARSHALABLE_OPTIONS.include?(name) }
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems