Module: Catche::Tag

Extended by:
Tag
Included in:
Tag
Defined in:
lib/catche/tag.rb,
lib/catche/tag/object.rb,
lib/catche/tag/resource.rb

Defined Under Namespace

Classes: Object, Resource

Constant Summary collapse

KEY = 
'catche'
DIVIDER = 
'_'

Instance Method Summary collapse

Instance Method Details

#expire!(*tags) ⇒ Object 



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# File 'lib/catche/tag.rb', line 28

def expire!(*tags)
  expired_keys = []

  tags.each do |tag|
    keys = fetch_tag(tag)
    expired_keys += keys

    keys.each do |key|
      # Expires the cached value
      Catche.adapter.delete key

      # Removes the tag from the tag list in case it's never used again
      Catche.adapter.write(
          stored_key(:keys, key),
          fetch_key(key).delete(stored_key(:tags, tag))
        )
    end

    Catche.adapter.delete stored_key(:tags, tag)
  end

  expired_keys
end

#join(*tags) ⇒ Object 



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# File 'lib/catche/tag.rb', line 12

def join(*tags)
  tags.flatten.compact.uniq.join(DIVIDER)
end

#tag!(key, *tags) ⇒ Object 



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# File 'lib/catche/tag.rb', line 16

def tag!(key, *tags)
  tags.each do |tag|
    keys      = fetch_tag(tag)
    key_tags  = fetch_key(key)
    tag_key   = stored_key(:tags, tag)
    key_key   = stored_key(:keys, key)

    Catche.adapter.write(tag_key, keys << key)
    Catche.adapter.write(key_key, key_tags << tag_key)
  end
end