Module: CacheBack::WriteMixin::InstanceMethods

Defined in:
lib/cache_back/write_mixin.rb

Instance Method Summary collapse

Instance Method Details

#cache_back_key ⇒ Object 



17
18
19
 
# File 'lib/cache_back/write_mixin.rb', line 17

def cache_back_key
  @cache_back_key ||= new_record? ? nil : self.class.cache_back_key_for_id(id)
end

#cache_back_keys ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/cache_back/write_mixin.rb', line 27

def cache_back_keys
  new_attributes = attributes.symbolize_keys

  old_attributes = Hash[changes.map {|attribute, values| [attribute, values[0]]}].symbolize_keys
  old_attributes.reverse_merge!(new_attributes)

  keys = []
  self.class.cache_back_indices.each do |index|
    old_key = self.class.cache_back_key_for(index.map { |attribute| [attribute, old_attributes[attribute]]})
    new_key = self.class.cache_back_key_for(index.map { |attribute| [attribute, new_attributes[attribute]]})

    [old_key, new_key].uniq.each do |key|
      keys << key
      keys << "#{key}/first"
    end
  end
  keys
end

#clear_cache_back_indices ⇒ Object 



46
47
48
49
50
 
# File 'lib/cache_back/write_mixin.rb', line 46

def clear_cache_back_indices
  cache_back_keys.each do |key|
    CacheBack.cache.delete(key)
  end
end

#clear_local_cache_back_indices ⇒ Object 



52
53
54
55
56
 
# File 'lib/cache_back/write_mixin.rb', line 52

def clear_local_cache_back_indices
  cache_back_keys.each do |key|
    CacheBack.cache.delete_local(key)
  end
end

#reload_with_cache_back_clearing(*args) ⇒ Object 



58
59
60
61
 
# File 'lib/cache_back/write_mixin.rb', line 58

def reload_with_cache_back_clearing(*args)
  clear_local_cache_back_indices
  reload_without_cache_back_clearing(*args)
end

#store_in_cache_back ⇒ Object 



21
22
23
24
25
 
# File 'lib/cache_back/write_mixin.rb', line 21

def store_in_cache_back
  if !readonly? && cache_back_key
    CacheBack.cache.write(cache_back_key, self)
  end
end