Class: CacheIt::InstanceDelegate

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

Instance Method Summary collapse

Constructor Details

#initialize(base) ⇒ InstanceDelegate 



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# File 'lib/cache_it.rb', line 73

def initialize(base)
  @base = base
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/cache_it.rb', line 96

def delete
  keys(attributes_before_changes).each {|key| Rails.cache.delete(key)}
end

#increment(counter, amount = 1) ⇒ Object 



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# File 'lib/cache_it.rb', line 85

def increment(counter, amount = 1)
  counter = counter.to_s
  unless @base.class.cache_it.config.counters.include? counter
    raise ArgumentError, "#{counter} is not a counter"
  end
  primary_key = @base.class.primary_key
  if key = @base.class.cache_it.key({primary_key => @base[primary_key]}, :counter => counter)
    @base[counter] = Rails.cache.increment(key, amount, :raw => true)
  end
end

#init_counters ⇒ Object 



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# File 'lib/cache_it.rb', line 100

def init_counters
  primary_key = @base.class.primary_key
  @base.class.cache_it.config.counters.map do |counter|
    counter_key = @base.class.cache_it.key({primary_key => @base[primary_key]}, :counter => counter)
    @base[counter] = Rails.cache.fetch(counter_key, :raw => true) { @base[counter] }
  end
end

#write ⇒ Object 



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# File 'lib/cache_it.rb', line 77

def write
  expires_in = @base.class.cache_it.config.expires_in
  val = {:attributes => @base.attributes}
  keys.each {|key| Rails.cache.write(key, val, :expires_in => expires_in)}
  stale_keys.each {|key| Rails.cache.delete(key)}
  init_counters
end