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Contents
module MontageRails
class QueryCache
attr_reader :cache
attr_accessor :no_cache
def initialize(no_cache = false)
@cache = {}
@no_cache = no_cache
end
def get_or_set_query(klass, query)
cached = cache.keys.include?("#{klass}/#{query}") && !no_cache
ActiveSupport::Notifications.instrument("reql.montage_rails", notification_payload(query, klass, cached)) do
if cached
cache["#{klass}/#{query}"]
else
response = yield
cache["#{klass}/#{query}"] = response
response
end
end
end
# Clear the entire query cache
#
def clear
@cache = {}
end
# Remove a certain key from the cache
# Returns the removed value, or nil if nothin was found
#
def remove(key)
cache.delete(key)
end
private
def notification_payload(query, klass, cached = false)
{
reql: query,
name: cached ? "#{klass} Load [CACHE]" : "#{klass} Load"
}
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems