Class: Wonderfl::Utils::Cache

Inherits:
PStore
  • Object
show all
Defined in:
lib/wonderfl/utils.rb

Overview

Caches response data from APIs

Instance Method Summary collapse

Constructor Details

#initialize(filename, expire) ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/wonderfl/utils.rb', line 16

def initialize(filename, expire)
  @filename = filename || 'wonderfl_cache.db'
  @expire = expire || 0
  super(@filename)
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/wonderfl/utils.rb', line 22

def [](key)
  value = super(key) || {}
  expired = (value[:timestamp].nil? ||
             value[:timestamp] + @expire < Time.now)
  expired ? nil : value[:entity]
end

#[]=(key, value) ⇒ Object 



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# File 'lib/wonderfl/utils.rb', line 29

def []=(key, value)
  super(key, { 
        :entity => value,
        :timestamp => Time.now
        })
end