Module: Sequel::Plugins::ActsAsCacheable::ClassMethods

Defined in:
lib/sequel_acts_as_cacheable.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#acts_as_cacheable_cache ⇒ Object

Returns the value of attribute acts_as_cacheable_cache.



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# File 'lib/sequel_acts_as_cacheable.rb', line 12

def acts_as_cacheable_cache
  @acts_as_cacheable_cache
end

#acts_as_cacheable_time_to_live ⇒ Object

Returns the value of attribute acts_as_cacheable_time_to_live.



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# File 'lib/sequel_acts_as_cacheable.rb', line 13

def acts_as_cacheable_time_to_live
  @acts_as_cacheable_time_to_live
end

Instance Method Details

#[](*args) ⇒ Object 



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# File 'lib/sequel_acts_as_cacheable.rb', line 28

def [](*args)
  is_primary_key_lookup =
      if 1 == args.size
        if Fixnum == args.first.class
          true
        else
          if String == args.first.class
            begin
              Integer(args.first)
              true
            rescue
              false
            end
          else
            false
          end
        end
      else
        false
      end

  if is_primary_key_lookup
    key = model_cache_key args.first
    begin
      cache_value = @acts_as_cacheable_cache.get key
    rescue Exception => e
      logger.error "CACHE.get failed in primary key lookup with args #{args.inspect} and model #{self.class.name} so using mysql lookup instead, exception was #{e.inspect}"
      cache_value = super *args
    end

    if !cache_value
      cache_value = super *args
      cache_value.cache! if cache_value
    end

    if cache_value.kind_of? self
      cache_value
    else
      nil
    end
  else
    super *args
  end
end

#inherited(subclass) ⇒ Object

Copy the necessary class instance variables to the subclass.



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# File 'lib/sequel_acts_as_cacheable.rb', line 16

def inherited(subclass)
  super
  subclass.acts_as_cacheable_cache = acts_as_cacheable_cache
  subclass.acts_as_cacheable_time_to_live = acts_as_cacheable_time_to_live
end

#model_cache_key(model_id) ⇒ Object 



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# File 'lib/sequel_acts_as_cacheable.rb', line 22

def model_cache_key model_id
  base_model_klass = self
  base_model_klass = base_model_klass.superclass while Sequel::Model != base_model_klass.superclass
  "#{base_model_klass.name}~#{model_id}"
end