Class: NiceCache::Fragment

Inherits:
Object
  • Object
show all
Defined in:
lib/nice_cache/fragment.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data = nil, tag_names = nil) ⇒ Fragment

Returns a new instance of Fragment.



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# File 'lib/nice_cache/fragment.rb', line 19

def initialize(data = nil, tag_names = nil)
  create(data, tag_names) if data && tag_names
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/nice_cache/fragment.rb', line 5

def data
  @data
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/nice_cache/fragment.rb', line 5

def name
  @name
end

Class Method Details

.find(name) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 7

def self.find(name)
  new.find(name)
end

.key(name) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 11

def self.key(name)
  "Fragment:#{name}"
end

.tags_for(name) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 15

def self.tags_for(name)
  "TagsFor:#{name}"
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 54

def ==(other)
  [name, data] == [other.name, other.data]
rescue
  false
end

#attach_with(tag) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 40

def attach_with(tag)
  redis.sadd(attached_tags, tag.name)
end

#create(data, tag_names) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 23

def create(data, tag_names)
  @name = stringify(tag_names)
  @data = data
  attach_tags(tag_names)
  save_to_redis
end

#destroy ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 44

def destroy
  tags.each do |tag|
    tag.remove_from(self)
  end

  redis.srem(NiceCache.all_fragments_key, @name)
  redis.del attached_tags
  redis.del fragment_key
end

#find(name) ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 30

def find(name)
  @name = name
  @data = data_from_redis
  self
end

#tags ⇒ Object 



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# File 'lib/nice_cache/fragment.rb', line 36

def tags
  Tag.find(redis_tag_names)
end