Module: Aerogel::Cache

Defined in:
lib/aerogel/core/cache.rb

Class Method Summary collapse

Class Method Details

.cache ⇒ Object

Returns cache structure.



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# File 'lib/aerogel/core/cache.rb', line 32

def self.cache
  @cache ||= initialize_cache
end

.cache_key(args) ⇒ Object

Calculates a cache key for a single object, or a compound cache key for a list of objects.



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# File 'lib/aerogel/core/cache.rb', line 12

def self.cache_key( args )
  if Array === args
    args.flatten.map{|o| object_to_cache_key o }.join("/")
  else
    object_to_cache_key args
  end
end

.cacheable(*args, &block) ⇒ Object

Retrieves cache entry by calculated cache key of args, or runs given block, stores its result in the cache and returns its value.



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# File 'lib/aerogel/core/cache.rb', line 23

def self.cacheable( *args, &block )
  key = cache_key args
  cache.getset key do
    yield key
  end
end

.clear! ⇒ Object

Clears cache completely.



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# File 'lib/aerogel/core/cache.rb', line 44

def self.clear!
  @cache.clear
end

.keys ⇒ Object

Returns list of stored keys.



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# File 'lib/aerogel/core/cache.rb', line 38

def self.keys
  cache.to_a.map(&:first)
end